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SASLab Manual


Main window : File > Specials >


This submenu contains special purpose commands.

Previous file Opens the previous file according to the selection on the command Previous/Next file command settings…

Next file Opens the next file according to the selection on the command Previous/Next file command settings…

Previous/Next file command settings…

Auto Browse...

Delete File Deletes the currently loaded sequentially numbered .wav file and renames the following files. This command is only available for sequentially numbered sound files (Txxxxx.WAV).

Re-assembling settings...


User-defined Import Format...

File properties Shows file properties and statistics of the currently loaded file.

Add channel(s) from file...

Add silent channel Adds a new silent channel. Use command File/Specials/Swap channels to move the newly added channel.

Remove channels...

Add neighbour channels automatically If this option is checked, other neighbor channels generated by the Avisoft-RECORDER software will be added automatically each time one of these files is opened. This option is intended for analyzing multichannel (in sync) recordings consisting of several mono files with identical filenames located in neighbored directories.

Swap channels Swaps left and right channel in stereo files.

Insert .wav file Inserts a .wav file at the current inserting point.

Append .wav file Appends a .wav file to the end of the file.

Join .wav files This command will join several .wav files into a single file. The launched File Open dialog box allows to select multiple files by pressing the shift key. The order of the source files in the resulting file will be determined by the order at which the files have been selected (the current order is shown in reversed order in the File Name edit box). The resulting soundfile will contain labels that indicate the starting points of the original source files. The resulting sound file (that is temporarily named “joined.wav”) must be saved from the File > Save As… command.

Join .wav files from a playlist This command will join several .wav files that are listed in a playlist file (.TXT files created by Avisoft-RECORDER or common M3U files) into a single .wav file. The launched File Open dialog box allows to select a playlist (.txt or .m3u). The resulting soundfile will contain labels that indicate the starting points of the original source files. The resulting sound file (that is temporarily named “joined.wav”) must be saved from the File/Save As… command.

UltraDoundGate DIO >

Shred into numbered files...

Envelope > Save Envelope Curve Saves the envelope curve visible in the main window according to the current export parameters as a BMP-file.

Envelope > Copy Envelope Curve Copies the envelope curve visible in the main window into the clipboard.

Envelope > Envelope Curve Export Parameters...

Envelope > Launch separate Curve Window... This command launches a separate curve window for more detailed measurements and advanced export facilities.

The Frequency Division Bat Detector Emulation > menu allows to convert a high-speed sampled bat sound file into a low-frequency sound file that corresponds to the output signal of a common frequency division bat detector. This feature might be helpful for comparing time-expanded bat sound recordings with frequency division bat sound recordings.


Don’t work on copies of opened .wav files If this option is activated, all editing operations will be made on the original file (not on a copy of it). This will accelerate opening large files. However, because editing is applied to the original file, care must be taken not to cause unwanted modifications to the sound file. With this option activated, the command File/Save is not required. For files other than .wav, this option has no effect.

Georeference .wav files...

Avisoft Bioacoustics last modified on 13 January 2019