64 lines
1.6 KiB
Groff
64 lines
1.6 KiB
Groff
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." Automatically generated text
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.TH 7 "August 31, 2006" "OSS" "OSS Devices"
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.SH NAME
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oss_cmpci - CMedia CMI8738/8768 audio driver.
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.SH DESCRIPTION
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Open Sound System driver for CMedia Electronics CMI8738/8768 audio
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CMI87xx device characteristics:
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o 8/16 bit playback/record
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o mono/stereo/4ch/5.1ch playback
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o 8KHz to 48Khz sample rate.
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.SH MIXER PANEL
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The CMedia chip provides some unique features that are set up
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by the Mixer chip. Running ossxmix will display the CMI8738 mixer
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panel.
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Most of the sliders and buttons are self evident. However there
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are some options that need explaining:
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Dual Dac: Enabling this button sets the CMPCI device as two
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separate output devices with /dev/dsp1 audio going to the front and
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/dev/dsp0 going to the rear outputs. Separate audio streams can
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be send to the device simultaneously.
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Speaker Mode: The audio can be sent just to the front speakers or
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it can be sent simultaneously to all speakers in the "Spread" mode.
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AC3 passthrough only works on Models 037 and higher. This is because of
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a hardware bug in the earlier models so check the model number
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(ossinfo -a).
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SPDIF:
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.IP \(bu 3
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Enable will enable SPDIF output.
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.IP \(bu 3
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Rec will allow you to record from the SPDIF device. Note that when
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you have SPDIF recording enabled, you cannot play 4/6 channel audio.
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.IP \(bu 3
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Polarity - certain models require you to flip the bit otherwise you
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get distorted audio.
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.IP \(bu 3
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IMon - monitor input via SPDIF in.
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.IP \(bu 3
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Optical - sets the SPDIF to Optical (TOSLINK) or RCA Jacks interface.
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.SH OPTIONS
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None
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.SH FILES
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/usr/lib/oss/conf/oss_cmpci.conf Device configuration file
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.SH AUTHOR
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4Front Technologies
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