You can use aumix to do this. We put the following line in the /etc/rc.d/rc.local to set the required values at boot time... /usr/bin/aumix -m R -m 100 -v 80 This sets the mic input as the record source, sets the mic volume to 100% and the output volume to 80% If you want to see the values first, an 'aumix -q' will do that (according to the man page - I do not currently have a DM355 available to try it on). Regards Phil Q Phil Quiney, Principal Software Engineer Trinity Convergence Cambridge Business Park Cowley Road Cambridge CB4 0WZ, UK T: +44(0)1223-435536 F: +44(0)1223-435560 www.trinityconvergence.com <http://www.trinityconvergence.com/>
________________________________ From: ashish pareek [mailto:[EMAIL PROTECTED] Sent: 22 October 2008 11:00 To: Phil Quiney Cc: [email protected] Subject: Re: Re: RE: Audio demo (AIC33) Hi , How mixer settings are done ? I want mic in settings with 100% gain . Before that i want to see existing settings . Ashish >On Tue, 07 Oct 2008 Phil Quiney wrote : > >Hi, > > > >Can you not just open /dev/dsp and read that device, writing to FLASH as & > >when you need to. > > > >You can configure the device for sample rate and bits/sample via OSS ioctls. > > > >The attached program could be used as a starting point. This is one of our > >test programs we use when validating audio on a target. > > > >Just run it with... > > > >./trinity_au -f 16000 -r somefile.wav > > > >That will record at 16bit 16kHz and write out a .wav file. If you omit the > >.wav it will write a raw file (which may be closer to what you need). > > > >If you omit the -f option it will do 44.1kHz. Note that the number of > >channels defaults to 2 (stereo). You should be able to set it to mono by > >specifying -c 1 but this does not work on the davinci as the driver is > >stereo only. > > > >Run it with -h for a full list of options - I can't guarantee that all of > >them work though. > > > >Regards > > > >Phil Q > > > >Phil Quiney, Senior Software Engineer > >Trinity Convergence > >Cambridge Business Park > >Cowley Road > >Cambridge CB4 0WZ, UK > >T: +44(0)1223-435536 > >F: +44(0)1223-435560 > >www.trinityconvergence.com <http://www.trinityconvergence.com/> > > > > > > > >________________________________ > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of ashish pareek > >Sent: 07 October 2008 09:58 > >To: [email protected] > >Subject: Audio demo (AIC33) > > > > > > > > > >Hi All, > > > >My application requires to use TLV320AIC33 stereo audio codec IC to store > >audio samples every quarter of sec to nand .I am new to such application > >.Could any one help me with some demo /reference code . > > > >I will appreciate such help. > > > >Ashish > > > > > > > >Black578x38_banner2.gif > ><http://adworks.rediff.com/cgi-bin/AdWorks/click.cgi/www.rediff.com/signature-home.htm/[EMAIL > > PROTECTED]/2606998_2599290/2602379/1?PARTNER=3&OAS_QUERY=null> Rediff Shopping <http://adworks.rediff.com/cgi-bin/AdWorks/click.cgi/www.rediff.com/signature-home.htm/[EMAIL PROTECTED]/2206641_2199021/2201650/1?PARTNER=3&OAS_QUERY=null>
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