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From: Anoop Rajan <anoop@librewireless.com>
To: Clemens Ladisch <clemens@ladisch.de>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
Subject: Re: Support for Synchronous Audio
Date: Fri, 17 Apr 2015 10:28:50 +0000	[thread overview]
Message-ID: <1429266530143.46159@librewireless.com> (raw)
In-Reply-To: <5530CD6E.4080408@ladisch.de>


Hi Clemens,

As I told we support synchronous multiroom audio, where in one speaker(master) streams the audio to others nodes(slave) over the network. Master speaker  future timestamps the audio and re-transmits to all other nodes based on a common reference clock maintained. Our stack implements the logic to present the audio synchronously to ALSA monitoring the stamped time.We are not using snd_pcm_link().

We use MT-7620 SOC from Mediatek.


Thanks,
Anoop 
________________________________________
From: Clemens Ladisch <clemens@ladisch.de>
Sent: 17 April 2015 14:37
To: Anoop Rajan; alsa-devel@alsa-project.org
Subject: Re: [alsa-devel] Support for Synchronous Audio

Anoop Rajan wrote:
> We have requirements to play synchronous multi-room audio with very
> minimal node to node latency(<100 us). [...] Though I make sure that
> I start the PCM  from user layer synchronously

How?  With snd_pcm_link()?

What hardware are you using?


Regards,
Clemens

  reply	other threads:[~2015-04-17 10:28 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-17  8:07 Support for Synchronous Audio Anoop Rajan
2015-04-17  9:07 ` Clemens Ladisch
2015-04-17 10:28   ` Anoop Rajan [this message]
2015-04-18 10:36     ` Clemens Ladisch

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