News and Revision History

Avisoft-RECORDER, version 3.4 (22 May 2009)

  • The newly implemented GPS option (Options/GPS settings) allows to attach any NMEA compatible GPS receiver (either a Bluetooth GPS receiver, a USB GPS mouse or a handheld GPS unit) to the notebook PC in order to simultaneously acquire the geographic locations of the recorded .wav files. The resulting log files are common .gpx or .kml files that can be imported into GIS applications such as Google Earth. See also the RECORDER page.
  • A new batch mode supports processing large numbers of animals in drug testing procedures.
  • Addional file name options added.
  • In order to simplify the configuration management, the default configuration files now reside in the folder …username/Documents/Avisoft Bioacoustics/Configurations/RECORDER (before they were located in the hidden folder C:/Users/username/AppData/Roaming/Avisoft Bioacoustics).
  • The external digital trigger sources can now be inversed in order to enable active high TTL logic.
  • The UltraSoundGate models 116H, 416H, 816H and 1218H (with the new firmware version 1.1) can now be configured to ouput the internal RECORDER USGH software trigger state through the TRG socket, which enables the synchronization with other recording systems.
  • GPS coordinates are now also written directly into the .wav file header (‘GPS ‘ chunk).
  • Labeling functionality added (commands ‘Monitoring’/’LOG file comment’, ‘Options’/’Create labels from digital input events…’, ‘Options’/’USV monitoring setup wizard…’)

  • The newly implemented GPS option (Options/GPS settings) allows to attach any NMEA compatible GPS receiver (either a Bluetooth GPS receiver, a USB GPS mouse or a handheld GPS unit) to the notebook PC in order to simultaneously acquire the geographic locations of the recorded .wav files. The resulting log files are common .gpx or .kml files that can be imported into GIS applications such as Google Earth. See also the RECORDER page.
  • A new batch mode supports processing large numbers of animals in drug testing procedures.
  • Addional file name options added.
  • In order to simplify the configuration management, the default configuration files now reside in the folder …username/Documents/Avisoft Bioacoustics/Configurations/RECORDER (before they were located in the hidden folder C:/Users/username/AppData/Roaming/Avisoft Bioacoustics).
  • The external digital trigger sources can now be inversed in order to enable active high TTL logic.
  • The UltraSoundGate models 116H, 416H, 816H and 1218H (with the new firmware version 1.1) can now be configured to ouput the internal RECORDER USGH software trigger state through the TRG socket, which enables the synchronization with other recording systems.
  • GPS coordinates are now also written directly into the .wav file header (‘GPS ‘ chunk).
  • Labeling functionality added (commands ‘Monitoring’/’LOG file comment’, ‘Options’/’Create labels from digital input events…’, ‘Options’/’USV monitoring setup wizard…’)

Avisoft-SASLab Pro, version 4.51 (29 January 2009)

  • The dynamic range of the spectrogram display has been increased in order to better visualize low-level sounds.
  • The Graphic Synthesizer has got the new command ‘Tools’/’Copy contour…’ that allows to copy the contour of one parameter to another.
  • The software can now directly open the unusual .wav file format of the Pettersson BatSound software.
  • The new command ‘File’/’Specials’/’Remove channels…’ allows to remove one or more channels from multichannel files
  • The newly implemented command ‘Tools’/’Labels’/’Georeference labels…’ can plot sound file labels (that represent species) on a map, which can be useful for analyzing field surveys.

  • The dynamic range of the spectrogram display has been increased in order to better visualize low-level sounds.
  • The Graphic Synthesizer has got the new command ‘Tools’/’Copy contour…’ that allows to copy the contour of one parameter to another.
  • The software can now directly open the unusual .wav file format of the Pettersson BatSound software.
  • The new command ‘File’/’Specials’/’Remove channels…’ allows to remove one or more channels from multichannel files
  • The newly implemented command ‘Tools’/’Labels’/’Georeference labels…’ can plot sound file labels (that represent species) on a map, which can be useful for analyzing field surveys.

Avisoft-SASLab Pro, version 4.50 (24 October 2008)

  • The new options ‘Power spectrum (averaged)’ and ‘Power spectrum (level units, averaged)’ on the ‘One-dimensional Transformation’ have been implemented in order to support the calculation of average spectra over very large periods of time.
  • The log file tool (‘Tools’/’DDE Parameters / Log File…’) has been improved by adding the new file formats .xml and .sql, which simplifies the measurement data export to external databases.
  • The batch processing tool (command ‘Tools’/’Batch processing…’) now allows to process entire folders (option “process all .wav files in the selected folder”)
  • The command ‘File’/’Specials’/’File properties…’ can now display the GPS coordinates created by the RECORDER software.

  • The new options ‘Power spectrum (averaged)’ and ‘Power spectrum (level units, averaged)’ on the ‘One-dimensional Transformation’ have been implemented in order to support the calculation of average spectra over very large periods of time.
  • The log file tool (‘Tools’/’DDE Parameters / Log File…’) has been improved by adding the new file formats .xml and .sql, which simplifies the measurement data export to external databases.
  • The batch processing tool (command ‘Tools’/’Batch processing…’) now allows to process entire folders (option “process all .wav files in the selected folder”)
  • The command ‘File’/’Specials’/’File properties…’ can now display the GPS coordinates created by the RECORDER software.

Avisoft-SASLab Pro, version 4.40 (21 June 2008)

  • The new auto scroll command supports reviewing long spectrograms without repeatedly clicking at the scroll bar (spectrogram window command Tools/Scroll/auto scroll).
  • The classification batch processing commands (including the Automatic Parameter Measurements with activated classification option) now provide a summarizing table that displays the number of indentified elements of each class for each processed sound file.
  • A georeferencing tool for combining geographic coordinates (acquired by a handheld GPS receiver) with the sound files recorded by a digital field recorder has been added (command File/Specials/Georeference .wav files…). The created .gpx or .kml files contain the filenames and coordinates of the sound files, which can be displayed in GIS applications such as Google Earth. In this way, the navigation through sound files that have been recorded during field surveys can be simplified.
  • In order to simplify the configuration management, the default configuration files now reside in the folder …username/Documents/Avisoft Bioacoustics/Configurations/SASLab (before they were located in the hidden folder C:/Users/username/AppData/Roaming/Avisoft Bioacoustics).

  • The new auto scroll command supports reviewing long spectrograms without repeatedly clicking at the scroll bar (spectrogram window command Tools/Scroll/auto scroll).
  • The classification batch processing commands (including the Automatic Parameter Measurements with activated classification option) now provide a summarizing table that displays the number of indentified elements of each class for each processed sound file.
  • A georeferencing tool for combining geographic coordinates (acquired by a handheld GPS receiver) with the sound files recorded by a digital field recorder has been added (command File/Specials/Georeference .wav files…). The created .gpx or .kml files contain the filenames and coordinates of the sound files, which can be displayed in GIS applications such as Google Earth. In this way, the navigation through sound files that have been recorded during field surveys can be simplified.
  • In order to simplify the configuration management, the default configuration files now reside in the folder …username/Documents/Avisoft Bioacoustics/Configurations/SASLab (before they were located in the hidden folder C:/Users/username/AppData/Roaming/Avisoft Bioacoustics).

Avisoft-RECORDER, version 3.3 (27 December 2007)

  • The new USV real-time monitoring option for counting and measuring rat or mice ultrasonic vocalizations provides instant results on the acquired USVs. Various descriptive statistics items such as the total number, total duration, mean duration or standard deviation of the detected USVs can be reported (screen shot).
  • New ‘whistle tracking’ trigger option for detecting soft whistle-like signals that are buried in the background noise floor.
  • New ‘permanent (limited)’ trigger option for applications that require specific pre-defined recording durations.
  • The ‘UltraSoundGate DI’ trigger (RECORDER USG and USGH versions) now provides exact sample precise external triggering.
  • Simultaneous sound activated triggering on multichannel audio interfaces with several logic stereo pairs now works correctly.
  • New test signal playback tool for testing the equipment in long-term monitoring applications.

  • The new USV real-time monitoring option for counting and measuring rat or mice ultrasonic vocalizations provides instant results on the acquired USVs. Various descriptive statistics items such as the total number, total duration, mean duration or standard deviation of the detected USVs can be reported (screen shot).
  • New ‘whistle tracking’ trigger option for detecting soft whistle-like signals that are buried in the background noise floor.
  • New ‘permanent (limited)’ trigger option for applications that require specific pre-defined recording durations.
  • The ‘UltraSoundGate DI’ trigger (RECORDER USG and USGH versions) now provides exact sample precise external triggering.
  • Simultaneous sound activated triggering on multichannel audio interfaces with several logic stereo pairs now works correctly.
  • New test signal playback tool for testing the equipment in long-term monitoring applications.

Avisoft-UltraSoundGate 116H (05 November 2007)

  • Introducing the new single-channel UltraSoundGate devices USG 116Hb, 116H and 116Hm, which can be operated at sample rates of up to 1 MHz at 16 bit resolution. The top-of-the-line model 116Hm has been further shrunk for convenient hand-held use without sacrificing its ruggedness.

  • Introducing the new single-channel UltraSoundGate devices USG 116Hb, 116H and 116Hm, which can be operated at sample rates of up to 1 MHz at 16 bit resolution. The top-of-the-line model 116Hm has been further shrunk for convenient hand-held use without sacrificing its ruggedness.

Avisoft-SASLab Pro, version 4.40 (03 November 2007)

  • The software now uses the standard Windows folders for program files, application data (configuration files and temporary data) and documents (sound files, measurement results, etc.). It is therefore no longer required to run the software with administrator rights.
  • The new batch command “Classify .wav or .son files (show results in a single table)” allows to classify either sound files (.wav) or proviously saved binary spectrogram files (.son) by using the spectrogram image cross correlation technique. Both the class assignments and the underlying cross correlation coefficients will be displayed in a single table.
  • The new command “File/Specials/Join .wav files from playlist…” allows to join the .wav files that are listed in a playlist file (.txt or .m3u) into a single .wav file.
  • The spectrogram display procedures have been optimized for Windows Vista.
  • Additional option on “Location of measurements” in the Automatic Parameter Measurements tool: “Mean param. of entire element”.

  • The software now uses the standard Windows folders for program files, application data (configuration files and temporary data) and documents (sound files, measurement results, etc.). It is therefore no longer required to run the software with administrator rights.
  • The new batch command “Classify .wav or .son files (show results in a single table)” allows to classify either sound files (.wav) or proviously saved binary spectrogram files (.son) by using the spectrogram image cross correlation technique. Both the class assignments and the underlying cross correlation coefficients will be displayed in a single table.
  • The new command “File/Specials/Join .wav files from playlist…” allows to join the .wav files that are listed in a playlist file (.txt or .m3u) into a single .wav file.
  • The spectrogram display procedures have been optimized for Windows Vista.
  • Additional option on “Location of measurements” in the Automatic Parameter Measurements tool: “Mean param. of entire element”.

Avisoft-UltraSoundGate 416H, 816H, 1216H, Player (07 September 2007)

  • Introducing new bus-powered multichannel UltraSoundGate devices USG 416H, 816H and 1216H, which provide up to 12 channels that can be sampled at up to 750 kHz at 16 bit resolution.
  • Introducing the bus-powered UltraSoundGate Player 116 that provides a 16 bit D/A converter and an adjustable power amplifier in a single box. This product enables mobile playback in the field on new laptop computers that do not have a PC-Card slot (PCMCIA) for the NI-DAQCard 6062E anymore.
  • Introducing two new compact electrostatic speakers that are suited for playing back very high ultrasonic signals.

  • Introducing new bus-powered multichannel UltraSoundGate devices USG 416H, 816H and 1216H, which provide up to 12 channels that can be sampled at up to 750 kHz at 16 bit resolution.
  • Introducing the bus-powered UltraSoundGate Player 116 that provides a 16 bit D/A converter and an adjustable power amplifier in a single box. This product enables mobile playback in the field on new laptop computers that do not have a PC-Card slot (PCMCIA) for the NI-DAQCard 6062E anymore.
  • Introducing two new compact electrostatic speakers that are suited for playing back very high ultrasonic signals.

Avisoft-RECORDER, version 3.2 (17 August 2007)

  • RECORDER USGH now supports the new high-speed UltraSoundGate models 416H, 816H, 1216H and Player116.
  • In the single-channel mode, the real-time sprectrogram display now exploits the entire area of the application window (multiple rows).
  • The real-time spectrogram display procedures have been optimized for Windows Vista.

  • RECORDER USGH now supports the new high-speed UltraSoundGate models 416H, 816H, 1216H and Player116.
  • In the single-channel mode, the real-time sprectrogram display now exploits the entire area of the application window (multiple rows).
  • The real-time spectrogram display procedures have been optimized for Windows Vista.

Avisoft-RECORDER, version 3.0 (03 May 2007)

  • The new Avisoft-RECORDER USGH software now fully supports UltraSoundGate devices in Windows Vista (the previous RECORDER USG software is not compatible to Windows Vista). See the .pdf document USGx16 on Windows Vista.pdf
  • The software now uses the standard Windows folders for program files, application data (configuration files and temporary data) and documents (sound files, measurement results, etc.). It is therefore no longer required to run the software with administrator rights.
  • The playlist command now also supports common .M3U playlist files.
  • The additional syllable duration threshold parameter can help to optimize the automated recording process.
  • The new ‘Enlarge y axis’ parameter improves the real-time spectrogram display on small laptop computers or UMPCs.

  • The new Avisoft-RECORDER USGH software now fully supports UltraSoundGate devices in Windows Vista (the previous RECORDER USG software is not compatible to Windows Vista). See the .pdf document USGx16 on Windows Vista.pdf
  • The software now uses the standard Windows folders for program files, application data (configuration files and temporary data) and documents (sound files, measurement results, etc.). It is therefore no longer required to run the software with administrator rights.
  • The playlist command now also supports common .M3U playlist files.
  • The additional syllable duration threshold parameter can help to optimize the automated recording process.
  • The new ‘Enlarge y axis’ parameter improves the real-time spectrogram display on small laptop computers or UMPCs.

Avisoft-SASLab Pro, version 4.39 (23 February 2007)

  • Linear Predictive Coding (LPC) analysis options have been added to the spectrogram window (“LPC” option on the Spectrogram Parameters panel) and to the one-dimensional amplitude and power spectrum displays.
  • The command File/Specials/’Next file’ has been improved (if there are no incrementing numbers in the file names, the next file will be indentified from the file creation date attributes).
  • New command “Edit”/”Remove DC Offset”
  • The new Spectrogram Export Parameters dialog box option “enable envelope curve amplitude scale” provides a scale bar for the waveform display.
  • The previously fixed step display mode of the waveform display in the main window can now be deactivated (option “Analyze”/”Step waveform display mode”). Deactivating this new option will provide a smoother waveform display.
  • A new section label import command allows to import section labels (start, end and label text) from common tab-delimited .txt files.
  • A few bugs in the classification option of the Automatic Parameter Measurement tool and teh Graphic Synthesizer have been fixed.
  • The new option “remove modulation” in the Scaling command of the Graphic Synthesizer now allows to remove AM or FM from re-synthesized playback stimuli more easily.
  • A frequency statistics option has been added to the “Scan frequency contour and amplitude envelope…” command.
  • The classification commands Analyze/Specials/”Detect and classify waveformevents…” and “Scan for template spectrogram patterns…” have been improved and added to the batch command (Tools/Batch processing). This addition certainly allows to search large numbers of sound files for specific signals (e.g specific calls).
  • Three new batch command options have been implemented (“Save one-dimensional transformations into a single ASCII file”, “Save mean spectra into a single ASCII file” and “Noise reduction filter”).
  • New command File/Specials/”Join .wav files…”
  • The additional Automatic Parameter Measurements threshold “Reject if peak ampl. < … dB” enables more reliable results for the parameters “peak freq(minentire)” and “peak freq(maxentire)”
  • The Graphic Synthesizer allows to scale single elements individually (by right-clicking at the specific parameter of the element)”
  • The channels in multichannel files can now be calibrated individualy.
  • The new low-pass option in the spectrogram window command Display/Cut-Off Frequencies… allows to limit the Automatic Parameter Measurements to certain frequency intervals.

  • Linear Predictive Coding (LPC) analysis options have been added to the spectrogram window (“LPC” option on the Spectrogram Parameters panel) and to the one-dimensional amplitude and power spectrum displays.
  • The command File/Specials/’Next file’ has been improved (if there are no incrementing numbers in the file names, the next file will be indentified from the file creation date attributes).
  • New command “Edit”/”Remove DC Offset”
  • The new Spectrogram Export Parameters dialog box option “enable envelope curve amplitude scale” provides a scale bar for the waveform display.
  • The previously fixed step display mode of the waveform display in the main window can now be deactivated (option “Analyze”/”Step waveform display mode”). Deactivating this new option will provide a smoother waveform display.
  • A new section label import command allows to import section labels (start, end and label text) from common tab-delimited .txt files.
  • A few bugs in the classification option of the Automatic Parameter Measurement tool and teh Graphic Synthesizer have been fixed.
  • The new option “remove modulation” in the Scaling command of the Graphic Synthesizer now allows to remove AM or FM from re-synthesized playback stimuli more easily.
  • A frequency statistics option has been added to the “Scan frequency contour and amplitude envelope…” command.
  • The classification commands Analyze/Specials/”Detect and classify waveformevents…” and “Scan for template spectrogram patterns…” have been improved and added to the batch command (Tools/Batch processing). This addition certainly allows to search large numbers of sound files for specific signals (e.g specific calls).
  • Three new batch command options have been implemented (“Save one-dimensional transformations into a single ASCII file”, “Save mean spectra into a single ASCII file” and “Noise reduction filter”).
  • New command File/Specials/”Join .wav files…”
  • The additional Automatic Parameter Measurements threshold “Reject if peak ampl. < … dB” enables more reliable results for the parameters “peak freq(minentire)” and “peak freq(maxentire)”
  • The Graphic Synthesizer allows to scale single elements individually (by right-clicking at the specific parameter of the element)”
  • The channels in multichannel files can now be calibrated individualy.
  • The new low-pass option in the spectrogram window command Display/Cut-Off Frequencies… allows to limit the Automatic Parameter Measurements to certain frequency intervals.

Avisoft-RECORDER, version 2.97 (23 February 2007)

  • A new trigger option “any channel (OR)” improves the capabilities for simultaneously recording from microphone or hydrophone arrays.
  • The newly implemented command ‘Monitoring’/’Shut down time…’ allows to shut down the computer at a pre-defined time each day. In conjunction with the RTC Alarm option that is avalaible in the BIOS setup of many computers, it is possible to switch on the computer for a limited period of time each day.
  • Improved offline .wav file processing capabilities: The new option ‘no output – process as fast as possible’ that has been added to the ‘Device’ list box on the ‘Out dev…’ dialog box accelerates the offline processing of .wav files.
  • Playback LOG file implemented.
  • Playlist/Autostart option added.
  • The NI-DAQmx RECORDER version now supports low-cost digital I/O devices (NI USB-6501) for triggering playbacks (via standard WDM audio interfaces) by external TTL signals.

  • A new trigger option “any channel (OR)” improves the capabilities for simultaneously recording from microphone or hydrophone arrays.
  • The newly implemented command ‘Monitoring’/’Shut down time…’ allows to shut down the computer at a pre-defined time each day. In conjunction with the RTC Alarm option that is avalaible in the BIOS setup of many computers, it is possible to switch on the computer for a limited period of time each day.
  • Improved offline .wav file processing capabilities: The new option ‘no output – process as fast as possible’ that has been added to the ‘Device’ list box on the ‘Out dev…’ dialog box accelerates the offline processing of .wav files.
  • Playback LOG file implemented.
  • Playlist/Autostart option added.
  • The NI-DAQmx RECORDER version now supports low-cost digital I/O devices (NI USB-6501) for triggering playbacks (via standard WDM audio interfaces) by external TTL signals.

Avisoft-SASLab Pro, version 4.38 (25 January 2006)

  • An additional option on the Automatic Parameter Measurement setup dialog allows to enable the spectrum-based parameters individually for each location. This location-specific parameter selection can improve the clearness of the measurements because it is possible to disable unwanted and irrelevant combinations of parameters and locations.
  • The “Derived Parameter” capabilities of the Automatic Parameter Measurement tool have been extended (additional parameter “0”).
  • A few optimizations in the Automatic Parameter Measurement tool accelerate the processing of very long spectrograms.
  • The user will be prompted to save changes before closing a modified file.
  • Optional clock time display on the time axis of waveforms and spectrograms (command Analyze/Time axis format/hh:mm:ss.sssss).
  • The maximum number of harmonics in the Graphic synthesizer has been expanded to 24.
  • Instantaneous frequency and zero-croosing analysis plots (from the One-dimensional transformation command) can now be displayed in the Graphic Synthesizer window as a background graph.
  • The Automatic Parameter Measurement matrix results can be copied in transposed order.
  • Autocorrelation method (ACF) added for fundamental frequency determination in the Automatic Parameter Measurements tool.

  • An additional option on the Automatic Parameter Measurement setup dialog allows to enable the spectrum-based parameters individually for each location. This location-specific parameter selection can improve the clearness of the measurements because it is possible to disable unwanted and irrelevant combinations of parameters and locations.
  • The “Derived Parameter” capabilities of the Automatic Parameter Measurement tool have been extended (additional parameter “0”).
  • A few optimizations in the Automatic Parameter Measurement tool accelerate the processing of very long spectrograms.
  • The user will be prompted to save changes before closing a modified file.
  • Optional clock time display on the time axis of waveforms and spectrograms (command Analyze/Time axis format/hh:mm:ss.sssss).
  • The maximum number of harmonics in the Graphic synthesizer has been expanded to 24.
  • Instantaneous frequency and zero-croosing analysis plots (from the One-dimensional transformation command) can now be displayed in the Graphic Synthesizer window as a background graph.
  • The Automatic Parameter Measurement matrix results can be copied in transposed order.
  • Autocorrelation method (ACF) added for fundamental frequency determination in the Automatic Parameter Measurements tool.

Avisoft-SASLab Pro, version 4.37 (15 July 2005)

  • The new “Scan for template spectrogram patterns” command provides a continuous spectrogram cross correlation tool for identifying spectrogram patterns in noisy recordings, where the “Detect and classify waveform” command does not work satisfying.
  • The calibration command has been expanded for selectable reference sound levels (1 or 20 µPa).

  • The new “Scan for template spectrogram patterns” command provides a continuous spectrogram cross correlation tool for identifying spectrogram patterns in noisy recordings, where the “Detect and classify waveform” command does not work satisfying.
  • The calibration command has been expanded for selectable reference sound levels (1 or 20 µPa).

Avisoft-RECORDER, version 2.96c (16 June 2005)

  • The ‘time program’ trigger has been expanded to 8 independent time programs (user-defined time tables). Each time program now provides up to 6 intervals (increased from 4 to 6).
  • Improved LOG file comment facilities (time-stamp mode).

  • The ‘time program’ trigger has been expanded to 8 independent time programs (user-defined time tables). Each time program now provides up to 6 intervals (increased from 4 to 6).
  • Improved LOG file comment facilities (time-stamp mode).

Avisoft-SASLab Pro, version 4.36 (22 March 2005)

Automatic Parameter Measurements :

  • The new element separation option “automatic (whistle tracking)” further improves the capabilities for detecting soft rat ultrasonic vocalisations (USV) in noisy environments. See the tutorial for details.
  • A second threshold option allows to measue bandwidths at two separate thresholds.
  • The option “show threshold” activates a graphic display of the element separation threshold, which improves the transparency of the threshold setting (screen shot).
  • Improved and accelerated handling of long spectrograms, new numeric display option (screen shot).

Automatic Parameter Measurements :

  • The new element separation option “automatic (whistle tracking)” further improves the capabilities for detecting soft rat ultrasonic vocalisations (USV) in noisy environments. See the tutorial for details.
  • A second threshold option allows to measue bandwidths at two separate thresholds.
  • The option “show threshold” activates a graphic display of the element separation threshold, which improves the transparency of the threshold setting (screen shot).
  • Improved and accelerated handling of long spectrograms, new numeric display option (screen shot).

Avisoft-SASLab Pro, version 4.35b (07 March 2005)

  • The new ‘File Open Settings…’ dialog (on the File menu) provides a few options for optimizing the handling of large sound files. Certainly the ‘temp directory’ edit box allows to select a RAM disk for saving the temporary files. This can significantly accelerate the processing of large sound files. Free RAM disk software is for instance available from www.arsoft-online.de .
  • Improved frequency axis grid on the main window display.
  • The new command Edit/Append allows to append the clipboard content to the end of the file.
  • The sound level display mode on the One-dimensional Transformation panel is now referenced to the RMS level (3 dB lower than the peak level). The new Level Display Mode dialog on the Display menu of the spectrogram window provides various level display options (peak, RMS or spectrum level)

  • The new ‘File Open Settings…’ dialog (on the File menu) provides a few options for optimizing the handling of large sound files. Certainly the ‘temp directory’ edit box allows to select a RAM disk for saving the temporary files. This can significantly accelerate the processing of large sound files. Free RAM disk software is for instance available from www.arsoft-online.de .
  • Improved frequency axis grid on the main window display.
  • The new command Edit/Append allows to append the clipboard content to the end of the file.
  • The sound level display mode on the One-dimensional Transformation panel is now referenced to the RMS level (3 dB lower than the peak level). The new Level Display Mode dialog on the Display menu of the spectrogram window provides various level display options (peak, RMS or spectrum level)

Avisoft-SASLab Pro, version 4.34 (01 February 2005)

  • A peak (or dominant) frequency option in the Pulse Train Analysis tool expands the analysis capabilties certainly for frog calls.
  • An additional post filter option in the Automatic Parameter Measurements allows to exclude unwanted short and/or broad-band cracks from the analysis.
  • The new group analysis option in the Automatic Parameter Measurements tool provides additional measurements on the temporal structure of phrases.
  • Impoved capabilities for analyzing the temporal structure of subsequent soundfiles (numbered sound event files created by Avisoft-RECORDER). The new option ‘inflate breaks’ on File/Specials/’Re-assembling settings…’ can speed up the analysis of long sequences (when disabling this option). See the principle of the available file display options.
  • The command Edit/’Change volume…’ can now either be applied to the current marker or alternatively to all section labels.

  • A peak (or dominant) frequency option in the Pulse Train Analysis tool expands the analysis capabilties certainly for frog calls.
  • An additional post filter option in the Automatic Parameter Measurements allows to exclude unwanted short and/or broad-band cracks from the analysis.
  • The new group analysis option in the Automatic Parameter Measurements tool provides additional measurements on the temporal structure of phrases.
  • Impoved capabilities for analyzing the temporal structure of subsequent soundfiles (numbered sound event files created by Avisoft-RECORDER). The new option ‘inflate breaks’ on File/Specials/’Re-assembling settings…’ can speed up the analysis of long sequences (when disabling this option). See the principle of the available file display options.
  • The command Edit/’Change volume…’ can now either be applied to the current marker or alternatively to all section labels.

Avisoft-RECORDER, version 2.95 (30 December 2004)

  • The National Instruments NI-DAQmx driver model has been implemented (executable rec_nimx.exe). This driver supports both M-series and E-series DAQ devices.
  • A new ‘permanent’ trigger mode simplifies the operation of the software for applications that do not require any triggering.
  • Multichannel playback capabilities (for soundcards) have been added.
  • A “Control Output” option for controlling external devices has been added.
  • Configuration file managment commands have been added in order to simplify switching between various parameter settings.

  • The National Instruments NI-DAQmx driver model has been implemented (executable rec_nimx.exe). This driver supports both M-series and E-series DAQ devices.
  • A new ‘permanent’ trigger mode simplifies the operation of the software for applications that do not require any triggering.
  • Multichannel playback capabilities (for soundcards) have been added.
  • A “Control Output” option for controlling external devices has been added.
  • Configuration file managment commands have been added in order to simplify switching between various parameter settings.

Avisoft-RECORDER, version 2.94 (03 September 2004)

  • New .wav file name options (date and time)
  • User-defined keyboard shortcuts
  • External triggering of playback
  • Interactive playback of playlist entries via keyboard shortcuts

  • New .wav file name options (date and time)
  • User-defined keyboard shortcuts
  • External triggering of playback
  • Interactive playback of playlist entries via keyboard shortcuts

Avisoft-SASLab Pro, version 4.33 (05 July 2004)

  • Improved command for extracting frequency contours from spectrograms (spectrogram window command Tools/’Scan frequency contour and amplitude envelope’). The new export capabilities enable subsequent statistical analysis of frequency contours (e.g. for comparing signature whistles). See a sample screenshot .
  • The new command Tools/Labels/’Label statistics’ provides various statistics on labels (including duty cycle versus time)
  • A ‘Max Spectrum’ option is now available from the ‘Additional Spectrogram Information’ dialog box.

  • Improved command for extracting frequency contours from spectrograms (spectrogram window command Tools/’Scan frequency contour and amplitude envelope’). The new export capabilities enable subsequent statistical analysis of frequency contours (e.g. for comparing signature whistles). See a sample screenshot .
  • The new command Tools/Labels/’Label statistics’ provides various statistics on labels (including duty cycle versus time)
  • A ‘Max Spectrum’ option is now available from the ‘Additional Spectrogram Information’ dialog box.

Avisoft-SASLab Pro, version 4.32 (16 June 2004)

  • Introducing a new cross-correlation classification command (Tools/Labels/”Classify labeled sections…” and Analyze/Specials/”Detect and classify waveform events…”) for automated identification of sound events. The classification algorithm is based on a template spectrogram comparison. See the classification report screen shot.
  • A new element separation option in the Automatic Parameter Measurements allows to use separate thresholds for locating the start and the end of an element (which is certainly useful for analyzing bat echolocation calls).
  • Export of labels as ASCII-formatted binary time series data.
  • Improved handling of the Automatic Parameter Measurements command.
  • New Automatic Parameter Measurements option for measuring the locations (time stamps) of minimum and maximum parameters (“Min / Max param. of entire element”,”t”). See example for measuring the locations of min and max peak frequencies).

  • Introducing a new cross-correlation classification command (Tools/Labels/”Classify labeled sections…” and Analyze/Specials/”Detect and classify waveform events…”) for automated identification of sound events. The classification algorithm is based on a template spectrogram comparison. See the classification report screen shot.
  • A new element separation option in the Automatic Parameter Measurements allows to use separate thresholds for locating the start and the end of an element (which is certainly useful for analyzing bat echolocation calls).
  • Export of labels as ASCII-formatted binary time series data.
  • Improved handling of the Automatic Parameter Measurements command.
  • New Automatic Parameter Measurements option for measuring the locations (time stamps) of minimum and maximum parameters (“Min / Max param. of entire element”,”t”). See example for measuring the locations of min and max peak frequencies).

Avisoft-SASLab Pro, version 4.31 (27 April 2004)

  • A new compressing command (Edit/Compress/Remove silent sections) allows to remove silent sections between sound events (e.g. bat calls) automatically. The reduced amount of data can then accelerate the analysis of large sound files. Similarly, it is now possible to automatically create section labels from sound events (Tools/Labels/Create section labels from waveform events).
  • Emulation of frequency division bat detecors for comparing the output signals of time-expansion bat detectrors and frequency division detectors (command File/Specials/Frequency Division Bat Detector Emulation).

  • A new compressing command (Edit/Compress/Remove silent sections) allows to remove silent sections between sound events (e.g. bat calls) automatically. The reduced amount of data can then accelerate the analysis of large sound files. Similarly, it is now possible to automatically create section labels from sound events (Tools/Labels/Create section labels from waveform events).
  • Emulation of frequency division bat detecors for comparing the output signals of time-expansion bat detectrors and frequency division detectors (command File/Specials/Frequency Division Bat Detector Emulation).

UltraSoundGate 116-200 (17 April 2004)

  • Introduction of a complete kit for recording ultrasound in air (see USG 116-200 and the UltraSoundGate advertising flyer). The newly designed condenser microphone and the additional polarization voltage supply circuit that has been added to the UltraSoundGate 116-200 provide superior sound quality for recording bat calls.

  • Introduction of a complete kit for recording ultrasound in air (see USG 116-200 and the UltraSoundGate advertising flyer). The newly designed condenser microphone and the additional polarization voltage supply circuit that has been added to the UltraSoundGate 116-200 provide superior sound quality for recording bat calls.

Avisoft-SASLab Pro, version 4.3 (22 March 2004)

  • The new Pulse Train Analysis command (see example) improves the abilities for the automated analysis of amplitude envelope patterns. Various options help accelerate for instance the temporal analysis of frog calls, grasshopper songs or dolphin clicks. Additionally, simple counting of vocalizations or measuring on-set duration’s as required in drug testing is also available. The new command is available from the menu Analysis/’Pulse Train Analysis…’. A batch process (Tools/Batch processing) allows to process several sound files at once.

  • The new Pulse Train Analysis command (see example) improves the abilities for the automated analysis of amplitude envelope patterns. Various options help accelerate for instance the temporal analysis of frog calls, grasshopper songs or dolphin clicks. Additionally, simple counting of vocalizations or measuring on-set duration’s as required in drug testing is also available. The new command is available from the menu Analysis/’Pulse Train Analysis…’. A batch process (Tools/Batch processing) allows to process several sound files at once.

UltraSoundGate hydrophone accessories (24 January 2004)

  • In order to simplify the operation of hydrophones, two dedicated hydrophone interface boxes are now available (see http://www.avisoft.com/ultrasound-microphones/charge-amplifier/) .
  • A specific envelope tracking option has been added to the Avisoft-RECORDER software for acoustically monitoring cetacean echolocation clicks.

  • In order to simplify the operation of hydrophones, two dedicated hydrophone interface boxes are now available (see http://www.avisoft.com/ultrasound-microphones/charge-amplifier/) .
  • A specific envelope tracking option has been added to the Avisoft-RECORDER software for acoustically monitoring cetacean echolocation clicks.

UltraSoundGate microphones (30 December 2003)

  • Introduction of a new line of externally polarized ultrasound condenser microphones (see the page on Ultrasound microphones). These new microphone options will further enhance the versatility of the UltraSoundGate system.

  • Introduction of a new line of externally polarized ultrasound condenser microphones (see the page on Ultrasound microphones). These new microphone options will further enhance the versatility of the UltraSoundGate system.

Avisoft-RECORDER, version 2.9 (14 August 2003)

  • 32 bit format option for National Instruments DSA devices (NI 44xx) implemented
  • Delay option added to the Playlist feature
  • In the configuration dialog box, a new Copy button allows to copy the settings of one channel to all other active channels

  • 32 bit format option for National Instruments DSA devices (NI 44xx) implemented
  • Delay option added to the Playlist feature
  • In the configuration dialog box, a new Copy button allows to copy the settings of one channel to all other active channels

Avisoft-SASLab Pro, version 4.23 (01 July 2003)

  • New editing commands (Cut & Paste) in the Graphics Synthesizer implemented.
  • An optional Y axis grid in the main window may speed-up the evaluation of sounds.
  • A new section label command allows transferring gate function analysis results into section labels.
  • An additional export parameter option (‘hide y axis’) in the one-dimensional transformation window adds more flexibily.
  • New horizontal cursors in the curve window provide enhanced measurement facilities on the One-dimensional transformation displays.
  • Improved facilities for comparing sound files: A cursor linkage option connects cursors throughout instances of the SASLab software (see example)

  • New editing commands (Cut & Paste) in the Graphics Synthesizer implemented.
  • An optional Y axis grid in the main window may speed-up the evaluation of sounds.
  • A new section label command allows transferring gate function analysis results into section labels.
  • An additional export parameter option (‘hide y axis’) in the one-dimensional transformation window adds more flexibily.
  • New horizontal cursors in the curve window provide enhanced measurement facilities on the One-dimensional transformation displays.
  • Improved facilities for comparing sound files: A cursor linkage option connects cursors throughout instances of the SASLab software (see example)

Avisoft-SASLab Pro, version 4.22 (28 April 2003)

  • A color mapping display showing the magnitude in dB has been added to the spectrogram window (see example)
  • The new spectrogram axis labeling option supports commonly used styles (see example)
  • Import of 24 bit .wav files (automatic normalization to the internal 16 bit format)

  • A color mapping display showing the magnitude in dB has been added to the spectrogram window (see example)
  • The new spectrogram axis labeling option supports commonly used styles (see example)
  • Import of 24 bit .wav files (automatic normalization to the internal 16 bit format)