ARCOFI(4)

NAME
arcofi - Siemens PSB2160 audio codec

SYNOPSIS
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 mono, 8000 KHz sound, either with 8-bit phone-quality mu-law or a-law samples, or 16-bit signed linear samples in big-endian byte order.

  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.

SEE ALSO
ioctl(2), audio(4), gsc(4), intro(4), audioctl(8), mixerctl(8)

HISTORY
OpenBSD support for arcofi first appeared in OpenBSD 5.1.