From mboxrd@z Thu Jan 1 00:00:00 1970 From: RobertChou Subject: Question about microphone usage on OMAP2430SDP Date: Wed, 24 Jan 2007 09:57:53 +0800 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces@linux.omap.com Errors-To: linux-omap-open-source-bounces@linux.omap.com To: linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org hi, I'm trying to record some voice through Main/Sub & Headset microphone on OMAP2430SDP board. But only noises is recorded (does not sound like voice). I have used 1. cat /dev/dsp > audio.out & cat audio.out > /dev/dsp --> failed 2. sample program from pjsip (open source sip protocol stack) which config. sample rate=44100, ch=2, bits=16 (able to record sound in x86 system) --> failed Besides main/sub mic, I noticed that the record source can be switch to Headset by ioctl OSS driver. I tried to use audio connector to 3.5mm microphone to the headset plug. But still doesn't work. I'm using linux-2.6.14-omap2430 downloaded from TI webiste. Does anyone ever successfully record anything from OMAP2430 main/sub or headset mic? And how can i correctly connect microphone to on-board headset plug? I'm currently using audio connector grab from nokia mobile accessory. Thx for answering my question. Best Regards, Robert