From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arun Raghavan Subject: Re: Using UCM with PulseAudio Date: Mon, 25 Jun 2012 06:55:21 +0530 Message-ID: <1340587521.5794.0.camel@localhost> References: <1339728813.5228.48.camel@localhost> <1339780110.7609.21.camel@odin> <1340195448.8622.7.camel@localhost> <4FE28BDA.4060707@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [93.93.135.160]) by alsa0.perex.cz (Postfix) with ESMTP id ACE2D24574 for ; Mon, 25 Jun 2012 03:25:26 +0200 (CEST) In-Reply-To: <4FE28BDA.4060707@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: "Gabriel M. Beddingfield" Cc: alsa-devel@alsa-project.org, broonie@opensource.wolfsonmicro.com, Feng Wei , Liam Girdwood , pulseaudio-discuss@lists.freedesktop.org List-Id: alsa-devel@alsa-project.org On Wed, 2012-06-20 at 21:50 -0500, Gabriel M. Beddingfield wrote: > 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. Ah, that's good to know. :) -- Arun