passthru(1)passthru(1)NAMEpassthru - pass audio sample data from an input port to an output port
SYNOPSISpassthru [-h][-v][-n nchannels][-s samplefmt][-r rate]
[-b blksize][-q qsize][-e]
DESCRIPTION
Passthru opens an audio input port and an output port, and connects them.
Command line options allow the user to experiment with the various audio
port parameters.
-h help: print out a list of command line options and their
descriptions
-v verbose: output to stdout
-n number of channels: 1 = mono, 2 = stereo
-s sample format: 8, 16, or 24 bit
-r sample rate: 48000, 44100, 32000, etc
-b transfer blocksize: specify value in sample FRAMES
-q queuesize for each of the two audio ports: specify value in SAMPLES
-e error reporting: display error status of audio ports
Larger transfer blocksizes decrease the CPU load but they also cause
larger latency from input and output.
FILES
Source code for passthru is installed here:
/usr/share/src/dmedia/audio/passthru.c
SEE ALSO
apanel
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