From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: Problem adding support for digital mixer in codec
Date: Thu, 25 Mar 2010 12:53:38 +0800 [thread overview]
Message-ID: <4f3252891003242153y788a583bs9f6045967f957cc7@mail.gmail.com> (raw)
In-Reply-To: <2256F256009DAA4CBE661E9F41EAC84B904BD8A0@dlee01.ent.ti.com>
2010/3/25 Candelaria Villarreal, Jorge <jorge.candelaria@ti.com>
> Hi,
>
> I am trying to add support for a digital mixer. The digital mixer is
> connected like the following example:
>
>
> Path 1 -------\
> Path 2 --------\
> MIXER ------> DAC----> ...
> Path 3 --------/
> Path 4 -------/
>
>
>
> However, I think ALSA does not support this configuration, as the DAC
> should be the first element in a route. I tried adding the DAC to the
> route first, and connected its output to the mixer inputs, like this:
>
> {"Mixer", "Multimedia Ext Switch", "HSDAC Left"},
> {"Mixer", "Multimedia Ext Switch", "HSDAC Right"},
>
> {"Mixer", "Voice Switch", "HSDAC Left"},
> {"Mixer", "Voice Switch", "HSDAC Right"},
>
> {"Mixer", "Multimedia Uplink Switch", "HSDAC Left"},
> {"Mixer", "Multimedia Uplink Switch", "HSDAC Right"},
>
> {"Mixer", "Multimedia Switch", "HSDAC Left"},
> {"Mixer", "Multimedia Switch", "HSDAC Right"},
>
> But this does not seem to work. Can anyone give me some tips? Any comment
> would be appreciated.
>
> Thanks,
> Jorge
>
Does your DSP support hardware mixing ?
next prev parent reply other threads:[~2010-03-25 4:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-25 2:33 Problem adding support for digital mixer in codec Candelaria Villarreal, Jorge
2010-03-25 4:53 ` Raymond Yau [this message]
2010-03-25 7:17 ` Peter Ujfalusi
2010-03-25 9:13 ` Liam Girdwood
2010-03-25 9:22 ` Peter Ujfalusi
2010-03-25 16:56 ` Candelaria Villarreal, Jorge
2010-03-25 9:26 ` Mark Brown
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