\b0 compresses or decompresses a soundfile. If the input soundfile is in a 16 bit linear format, it is compressed. If the input soundfile is in a compressed format, it is decompressed. The option controls the compression type; by default, bit-faithful compression is performed. With bit-faithful compression, the decompression operation reproduces the original sound exactly.
CommandOption
9{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 This option controls the compression amount for lossy compression. Specify <n> as an integer: 4 <= n <= 8. Higher numbers give greater compression
CommandArgument
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The amount for lossy compression
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 This option specifies lossless compression. A subsequent decompression will reproduce the original sound exactly
inputFile
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The file to compress or decompress
outputFile
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The file after it is compressed or decompressed
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This option indicates that the output is to be written to the specified file. By default, soundfiles are modified in place, with the exception of a conversion that changes the file type (i.e. -d, -r, and -a options)
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This specifies the resulting data format of the sound. The value of the number represents the format code; format codes are defined in <sound/soundstruct.h>. The default format code is the the input file's format code. The format conversions currently supported are SND_FORMAT_LINEAR_16 to SND_FORMAT_MULAW_8 SND_FORMAT_MULAW_8 to SND_FORMAT_LINEAR_16 SND_FORMAT_FLOAT to SND_FORMAT_LINEAR_16 SND_FORMAT_DOUBLE to SND_FORMAT_LINEAR_16
infostring
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The data format of the sound
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This allows the user to determine the scaling on the float-to-integer or integer-to-float translations. The scale factor used in translating float-to-integer is (float) * ((1 << scaleExponent)-1). The scale factor used in translating integer-to-float is (integer) / ((1 << scaleExponent)-1). The default scaleExponent is 15, which means that a float value of 1.0 is translated to the integer value of 32767. Using a scaleExponent of 23 translates a float value of 1.0 to a full-scale integer value used by the DSP56001
scaleExponent
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The scale exponent when scaling the sound
"{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This specifies the resulting sampling rate of the sound. It may be a floating point number. The default sampling rate is the input file's sampling rate. If the source file is 44.1 kHz and the destination is a 22050 Hz file, then a sample rate conversion is performed. Sample rate conversion is also performed when converting 8 bit mulaw, 8012.821 Hz to 16 bit linear, 22050 Hz
sampleRate
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The sampling rate of the sound
n{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This specifies the resulting number of channels of the sound. The default channel count is the input file's channel count. If the input file is mono (1 channel) and the channel count is 2, then a mono-to-stereo conversion is performed, for linear 16 or 32 bit files. If the input file is stereo (2 channels) and the channel count is 1, then a stereo-to-mono conversion (an equal mix of the two channels) is performed, also for linear 16 or 32 bit files
channelCount
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The number of channels of the sound
N{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This specifies the input file to be a raw data file, to which a header is added. The resulting soundfile is of the same name as the input file with a .snd extension
h{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This option specifies the input file to be a raw data file, as with the -r option, but the data format is ascii, with each number separated by newlines. The output files that can be generated from ascii input files are SND_FORMAT_LINEAR_16, SND_FORMAT_MULAW_8, SND_FORMAT_FLOAT, and SND_FORMAT_DOUBLE. If the output format is SND_FORMAT_LINEAR_16, input values are scaled by the scaleExponent specified with the -g option (the default is 32767.0)
S{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 This option indicates that the file is a DSP absolute load image. The file must have a .lod extension, and the output file will be of the same name with a .snd extension
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The sound file to convert
\b0 reads each file in sequence and plays it on the standard sound-out hardware. The soundfiles may be of any playable type; runtime conversion is performed if possible. Emphasized formats are played with the built-in low-pass filter activated.
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The file to play the sound from
\b0 records sound from either the 8Khz microphone input on the back of the monitor, or from the DSP. By default, data is taken in from the microphone jack 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).
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Record 16 bit data from the DSP serial input. The format of the data saved is 16 bit linear stereo
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Record 24 bit data from the DSP serial input. The format of the data saved is 16 bit linear stereo
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Specify that the data recorded from the DSP is emphasized
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Run the specified program on the DSP recording it's output into the specified sound file
dsp-program
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The program to run on the DSP
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Print warning messages if an output overflow is detected
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
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\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Record at most size bytes into the output file
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The number of bytes to record into the output file
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Place the contents of comment-file into the output file
comment-file
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The comment file
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1140\tx2300\tx3440\tx4600\tx5760\tx6900\tx8060\tx9200\tx10360\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Place the contents of comment-file into the output file
f{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 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
high-water-mark
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The high water mark
7{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 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
low-water-mark
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The low water mark
X{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 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
dma-size
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The size of the dma buffers
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Print out state useful for determining the internal behavior of sndrecord. Of marginal use
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The file to put the recording into