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
