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SNDRECORD(1)							  SNDRECORD(1)

NAME
       sndrecord - record a soundfile from sound-in or the DSP

SYNOPSIS
       sndrecord [ options ] file

DESCRIPTION
       Sndrecord  records  sound from either sound-in hardware or from the DSP
       (if available).	By default, data is taken from sound-in and placed  in
       the  named  file.   Alternatively, the data may be taken from a program
       running on the DSP.  The default DSP program reads 16-bit-wide data  in
       from the DSP serial input.  The resulting file may be played back using
       sndplay(1).

OPTIONS
       -F format-code
	      Record samples  in  the  specified  format.   Format  codes  are
	      defined	in   <sound/soundstruct.h>.    Some   examples	are  1
	      (MULAW_8), 2 (LINEAR_8), and 3 (LINEAR_16).  The	default	 is  1
	      (MULAW_8).  The formats supported depend on the available sound-
	      in hardware.  This option may not be used with -d,  -e,  -m,  or
	      -f.

       -S sampling-rate
	      Record  samples at the specified rate, which may be specified in
	      floating point.  The  default  is	 8012  (SND_RATE_CODEC).   The
	      rates supported depend on the available sound-in hardware.  This
	      option may not be used with -d, -e, -m, or -f.

       -n channel-count
	      Record the specified number of channels.	Typically 1 (mono)  or
	      2	 (stereo).   The  default  is  1  (mono).   The channel counts
	      supported depend	on  the	 available  sound-in  hardware.	  This
	      option may not be used with -d, -e, -m, or -f.

       -d     Record 16 bit data from the DSP serial input.  The format of the
	      data saved is 16 bit linear stereo.  This option may not be used
	      with -F, -S, or -n.

       -e     Record 24 bit data from the DSP serial input.  The format of the
	      data saved is 16 bit linear stereo.  This option may not be used
	      with -F, -S, or -n.

       -m     Specify that the data recorded from the DSP is emphasized.  This
	      option may not be used with -F, -S, or -n.

       -f dsp-program
	      Run the specified program on the DSP recording its  output  into
	      the  specified sound file.  This option may not be used with -F,
	      -S, or -n.

       -w     Print warning messages if an output overflow is detected.

       -s size
	      Record at most size bytes into the output file.

       -c comment
	      Place comment into the comment field of the output file.

       -C comment-file
	      Place the contents of comment-file into the output file.

       -h high-water-mark
	      Set the high water mark used by  the  the	 operating  system  in
	      wiring  down  memory  to record into.  The operating system will
	      try to wire down enough physical pages to reach the  high	 water
	      mark.

       -l low-water-mark
	      Set  the	low  water  mark  used	by  the operating system.  The
	      operating system ensures that at least this many bytes are wired
	      down to record into.

       -D dma-size
	      Set  the	size of the buffers used by the operating system for a
	      unit of recording.  This size must be a power of two  less  than
	      or equal to the physical page size of the machine.

       -v     Print  out state useful for determining the internal behavior of
	      sndrecord.  Of marginal use.

FILES
       The <sound/soundstruct.h> file contains the data format	codes  defined
       by the system.

SEE ALSO
       sndplay(1), sndconvert(1), sndinfo(1), sndcompress(1)

BUGS
       The  format, sampling rate, and channel count option names do not match
       their sndconvert counterparts.

NeXT Computer, Inc.		August 13, 1990			  SNDRECORD(1)

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