---
name: "gwavr"
section: "1"
platform: "linux"
package: "wavtools"
version: "1.3.2-6"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/gwavr"
---

# gwavr(1)

record a GSM compressed wave audio file

## NAME

gwavr - record a GSM compressed wave audio file

## SYNOPSYS

**gwavr** \[ **-f** *filename* \] \[ **-r**  *samplerate* \] \[ **-d**  *sampledepth* \]\
 \[ **-c** *numchans* \] \[**-s** **l** \| **m** \| **c** \]\

## DESCRIPTION

**gwavr** will record a  *PCM* encoded wav file from  */dev/dsp* then compress the data with the *GSM* algorythm leaving the file as small as 1/10th its usual size. The sample  format, length and source of the recording can all be supplied at  the command line.  If a mixer program is running, it can be used to set the recording  source and volume levels of that source.  Without arguments,  **gwavr** will output its useage.

## OPTIONS

- **-f filename**

  Uses  *filename* as the name of the recorded wave file. The default is  untitled.wav which will be used if  *-f* is not given.

- **-r samplerate**

  Asks for  *samplerate* to be used as the number of samplesss per second to be recorded.  Common values are  **44100** ,  **22050** ,  **11025** ,  **8000**

- **-d sampledepth**

  Uses  *sampledepth* as the number of bits to use for each sample.  Valid values are  **16** , and  **8** .

- **-c numchans**

  Uses  *numchans* channels in recording. Valid values are  **2** for a stereo recording, and  **1** for a mono recording.

- **-l length**

  Records for *length* seconds then stops.  This is not a required option. You may simply ^C the program and it will exit gracefully.

- **-s m\|l\|c**

  Sets the mixer to the appropriate recording source.   **l** = line,  **m** = mic, and  **c** = cd-rom.  If a mixer is already running, it can be used to specify recording source and volume levels.

## SEE ALSO

wavp (1) wavr (1) gwavp (1)

## AUTHOR

Colin Ligertwood (tannoy@wep.net)