NAME

arcofi —

Siemens PSB2160 audio codec

SYNOPSIS

arcofi* at dio?
arcofi* at gsc?
audio* at arcofi?

DESCRIPTION

The arcofi driver supports the HP “Audio1” audio devices, based upon the Siemens PSB2160 “ARCOFI” codec, to implement the audio device interface described in audio(4).

This device is found onboard HP 9000 workstations models 425e, 705 and 710.

The arcofi is limited to a phone-quality mono, 8000 KHz sound.

AUDIOCTL SETTINGS

The following encodings are supported:

AUDIO_ENCODING_ULAW
AUDIO_ENCODING_ALAW
AUDIO_ENCODING_SLINEAR_BE: Natively supported.
AUDIO_ENCODING_SLINEAR: Software converted to AUDIO_ENCODING_ULAW encoding.
AUDIO_ENCODING_SLINEAR_LE
AUDIO_ENCODING_ULINEAR_LE
AUDIO_ENCODING_ULINEAR_BE: Software converted to AUDIO_ENCODING_SLINEAR_BE encoding.

MIXERCTL SETTINGS

The arcofi has three audio ports:

inputs.line: The ‘line in’ jack connector.
outputs.line: The ‘line out’ jack connector.
outputs.spkr: The built-in speaker.

Each port has a volume control, and can be muted.

The outputs.line and outputs.spkr volume settings are tied to the same hardware setting.

HISTORY