From: Clemens Ladisch <clemens@ladisch.de>
To: alsa-devel@alsa-project.org
Subject: Re: What are subdevices?
Date: Mon, 27 Oct 2014 20:46:45 +0100 [thread overview]
Message-ID: <544EA125.80909@ladisch.de> (raw)
In-Reply-To: <544CC58C.3080800@gmail.com>
dE wrote:
> typically cards have a single analog device but support multichannel
> output. So how does this work at the software level? If ALSA can't
> send multiple streams of audio to one device, then how does ALSA send
> separate output to different channels of the device?
The channels are not separate. For a stereo devices, the samples are
arranged like LRLRLRLRLR...; for more channels, there are more
interleaved values: 123456123456123456123456...
Regards,
Clemens
next prev parent reply other threads:[~2014-10-27 19:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-26 8:14 What are subdevices? dE
2014-10-26 9:11 ` Clemens Ladisch
2014-10-26 9:57 ` dE
2014-10-27 18:02 ` dE
2014-10-27 19:46 ` Clemens Ladisch [this message]
2014-10-28 3:17 ` dE
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