NAME

auplay, auhdr, raw2iaf, wav2iaf - basic audio output and conversion

SYNOPSIS

auplay file ...

auhdr file ...

raw2iaf [ option ... ] [ -o output ] input

wav2iaf [ input ]

wav2iaf

DESCRIPTION

Auplay plays each file in turn on the audio device /dev/audio (see audio(3)), setting the device's characteristics in /dev/audioctl to match those of the file. It uses stream (see sys-read(2)) to stream the data to the device at high priority. All files played must be in `Inferno audio format', as defined by audio(6).

Auhdr writes the header of each Inferno audio input file to the standard output. The header describes the data in a form that can be written directly to /dev/audioctl to set the device's characteristics.

Raw2iaf converts the input file, adds an appropriate header to describe the data in the Inferno format, and writes the result to the output file. The options tell how the bytes in the input file should be interpreted:

-8

rate is 8000 Hz

-1

rate is 11025 Hz

-2

rate is 22050 Hz

-4

rate is 44100 Hz

-m

mono (one channel)

-s

stereo (two channels)

-b

each sample in each channel is one byte (unsigned)

-w

each sample in each channel is 16-bits (little-endian)

-a

input is a-law encoded

-u

input is ¿-law encoded

-p

input is PCM encoded

Wav2iaf reads the input file, which must be in Windows WAV format and encoded using PCM, and converts the data to Inferno format on the standard output.

SOURCE

/appl/cmd/auplay.b
/appl/cmd/raw2iaf.b
/appl/cmd/wav2iaf.b

SEE ALSO

sys-read(2), audio(3), audio(6) " sets rate, chans, bits, enc

AUPLAY(1 )

Rev:  Tue Mar 31 02:42:38 GMT 2015