SBREC(1)                 USER COMMANDS                   SBREC(1)



NAME
     sbrec - record sounds

SYNOPSIS
     sbrec [-d device_name][ -i volume][options] filename

DESCRIPTION
     Sounds are recorded using the audio interface and stored  in
     sound(4) format files.  sbrec displays the following message
     on the standard output once audio input is possible:

          Hit return key to start
          ^C key to stop

     Press <Return> to begin recording.   Use  [Ctrl]+c  to  stop
     recording.

OPTIONS
     For specifying the compression format:

          -mulaw    specifies mu-law.

          -alaw     specifies A-law.

          -strpcm   specifies straight PCM.

     For specifying the number of channels:

          -mono     specifies monaural.

          -stereo   specifies stereo.

     For specifying the number of quantifier bits:

          -8        specifies 8-bit quantization.

          -16       specifies 16-bit quantization.

     For specifying the sampling frequency:

          -8000     specifies 8 kHz.

          -9450     specifies 9.45 kHz.

          -18900    specifies 18.9 kHz.

          -37800    specifies 37.8 kHz.

     For specifying the monitor function:

          +monitor  turns the monitor function ON.




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SBREC(1)                 USER COMMANDS                   SBREC(1)



          -monitor  turns the monitor function OFF.

     For specifying the input jack:

          -box      inputs with /dev/sbe0 from microphone/speaker
                    box.

          -line     inputs with /dev/sbe0 from the  boardUs  line
                    input.

     Arguments following the -d option specify the  audio  inter-
     face.   If the sbrec command does not include the -d option,
     an attempt is made to  open  /dev/sbe0.   If  it  cannot  be
     opened,  the  /dev/sb0 device file is opened.  The user need
     not be aware of the device being  used.   However,  if  both
     /dev/sb0 and /dev/sbe0 are connected to the same machine, or
     if device names have been changed, the device name  must  be
     specified using the -d option.

     Arguments following the -i option are  used  for  specifying
     the  input volume.  This value can be from 0 dB to -32 dB in
     0.5 dB increments.  When line input is used with  /dev/sbe0,
     the  range is +7.5 dB to -10 dB in 2.5 dB increments.  If no
     value is specified, the previous setting is used.

SEE ALSO
     sbplay(1), sound(4).




























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