On 06/20/2012 07:30 AM, Arun Raghavan wrote:
UCM provides the "modifier" to allow ad-hoc modifications to the audio
use case like above where we want to play an end of call tone. In this
case the verb is still VoiceCall, but PA would enable the "PlayTone"
modifer to play the tone (UCM can also tell Pulseaudio the sink PCM and
volume control for the tone data).
Just as an observation, I think the Android HAL just uses PCM 0 and not
the PCM 3, but in the PA case, I'll do it the way you describe since
that makes more sense.
Yes, the Galaxy Nexus pretty much only uses PCM 0 -- but that's mostly a
reflection of AudioFlinger's design and limitations.
-gabriel
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