From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Scott Jiang <scott.jiang.linux@gmail.com>, alsa-devel@alsa-project.org
Subject: Re: Have multiple opens removed on one device?
Date: Mon, 22 Aug 2011 12:21:43 +0100 [thread overview]
Message-ID: <20110822112143.GB9232@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <s5hipppsqe9.wl%tiwai@suse.de>
On Mon, Aug 22, 2011 at 12:15:58PM +0200, Takashi Iwai wrote:
> Scott Jiang wrote:
> > In kernel 2.6.34 I can use aplay to play audio at the same time, alsa
> > will mix the audio.
> No, kernel part doesn't do such a thing. If it's mixed, it must be
> in the user-space (either dmix or a daemon like pulseaudio), unless
> you hardware can do mixing by itself.
There *are* some cards (mostly older ones like emu10k) that support
multiple streams transparently but this has never been supported in
ASoC due a lack of hardware that can do it.
next prev parent reply other threads:[~2011-08-22 11:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-22 10:13 Have multiple opens removed on one device? Scott Jiang
2011-08-22 10:15 ` Takashi Iwai
2011-08-22 11:21 ` Mark Brown [this message]
2011-08-29 10:11 ` Scott Jiang
2011-09-01 3:43 ` Scott Jiang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110822112143.GB9232@opensource.wolfsonmicro.com \
--to=broonie@opensource.wolfsonmicro.com \
--cc=alsa-devel@alsa-project.org \
--cc=scott.jiang.linux@gmail.com \
--cc=tiwai@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.