[OpenBSD]

Manual Page Search Parameters

AUDIOCE(4) Device Drivers Manual (sparc64) AUDIOCE(4)

NAME

audioceSPARC64 EBus CS4231 audio device

SYNOPSIS

audioce* at ebus?
audio* at audioce?

DESCRIPTION

The audioce device uses the Crystal Semiconductor CS4231A Parallel Interface, Multimedia Audio Codec chip to implement the audio device interface described in audio(4). This device is found onboard on some PCI/EBus based sparc64 models.
The audioce has a maximum precision of 16 bits and has both stereo and monoaural outputs.

MIXER INTERFACE

The mixer(4) interface for audioce provides the following controls:
 
 
outputs.dac
Specifies the attenuation of DAC output. A value of ‘255’ represents 0 dB attenuation.
 
 
outputs.dac.mute
Specifies whether DAC output is muted.
 
 
outputs.output
Specifies the set of enabled output ports. The output ports are: ‘line’, the line output jack, ‘hp’, the low impedance headphone jack, and ‘spkr’, the internal speaker. Note: Not all systems support disabling the headphone and line output ports.
 
 
inputs.cd
Specifies the gain applied to CD audio input. A value of ‘191’ represents 0 dB.
 
 
inputs.cd.mute
Specifies whether CD audio input is muted.
 
 
inputs.line
Specifies the gain applied to line input. A value of ‘191’ represents 0 dB.
 
 
inputs.line.mute
Specifies whether line input is muted.
 
 
outputs.monitor
Specifies the attenuation of ADC to DAC output. A value of ‘255’ represents 0 dB.
 
 
outputs.monitor.mute
Specifies whether ADC to DAC output is muted.
 
 
record.volume
Specifies ADC input gain. A value of ‘0’ represents 0 dB.
 
 
record.source
Specifies the active input port for the ADC. The following are valid ADC input ports: ‘line’, line input, ‘cd’, CD input, ‘mic’, microphone input, and ‘mixerout’, post-mixer output as heard on the output ports.
 
 
record.mic_preamp
Specifies whether an additional +20 dB gain is applied to the ADC's microphone input.

SEE ALSO

ioctl(2), audio(4), ebus(4), intro(4)

HISTORY

OpenBSD support for audioce first appeared in OpenBSD 3.0.
July 26, 2010 OpenBSD-current