From mboxrd@z Thu Jan 1 00:00:00 1970 From: Srinivasan S Subject: Re: Fw: Using loopback card to Connect GSM two way call to the real sound card UDA1345TS Date: Wed, 8 Jul 2015 15:25:10 +0000 Message-ID: References: <1425878251963.1340@tataelxsi.co.in> <1425878360800.70892@tataelxsi.co.in>, <54FD552C.7020902@ladisch.de>, <1425922601141.50130@tataelxsi.co.in> <1425964490006.15084@tataelxsi.co.in>, <54FECC69.9020600@ladisch.de> <1427510661706.37789@tataelxsi.co.in>, <551D0F35.6010709@ladisch.de> <1427970980529.96067@tataelxsi.co.in>, <551D5B78.60703@ladisch.de> <1429683117651.11394@tataelxsi.co.in>, <5539F971.2030407@ladisch.de> <1429877130444.23317@tataelxsi.co.in>, <553A3ADB.7040108@ladisch.de>, , <556C6EB8.7030401@ladisch.de>, , , <5593F513.4030705@ladisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from APAC01-HK1-obe.outbound.protection.outlook.com (mail-hk1on0115.outbound.protection.outlook.com [134.170.140.115]) by alsa0.perex.cz (Postfix) with ESMTP id 20973264EF3 for ; Wed, 8 Jul 2015 17:25:15 +0200 (CEST) In-Reply-To: <5593F513.4030705@ladisch.de> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Clemens Ladisch Cc: "alsa-devel@alsa-project.org" , "linux-audio-dev@lists.linuxaudio.org" List-Id: alsa-devel@alsa-project.org Dear Clemens, Thanks a lot for your support Clemens As you suggested, When I try to use alsa jack plugin, am facing the below error root@lifeline:/# vi etc/asound.conf pcm.rawjack { type jack playback_ports { 0 system:playback_1 1 system:playback_2 } capture_ports { 0 system:capture_1 1 system:capture_2 } } pcm.jack { type plug slave { pcm "rawjack" } hint { description "JACK Audio Connection Kit" } } pcm.!default { type plug slave { pcm "rawjack" } } root@lifeline:/opt/tunstall/audio# aplay -D pcm.jack TangoForTajMusic11.wav ALSA lib /home/jenkins/amsdk-nightly-build/build-CORTEX_1/arago-tmp-external-linaro-toolchain/work/cortexa8t2hf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.27.2-r0/alsa-lib-1.0.27.2/src/dlmisc.c:252:(snd1_dlobj_cache_get) Cannot open shared library /usr/lib/alsa-lib/libasound_module_pcm_jack.so aplay: main:722: audio open error: No such device or address root@lifeline:/opt/tunstall/audio# I feel order to resolve this error, 1. I feel that there is no libasound_module_pcm_jack.so, I have downloaded the alsa-plugins-1.0.29 could you please help me out how this can be cross compiled for my TI AM335x platform 2. Could you please let me know to cross compile & install the package libasound2-dev Could you please help me out in resolving this issue Kindly do the needful as early as possible Many Thanks a lot for your support once again w.r.t this thread so far ________________________________________ From: Clemens Ladisch Sent: Wednesday, July 1, 2015 7:41 PM To: Srinivasan S Cc: alsa-devel@alsa-project.org; linux-audio-dev@lists.linuxaudio.org Subject: Re: [alsa-devel] Fw: Using loopback card to Connect GSM two way call to the real sound card UDA1345TS Srinivasan S wrote: > Am facing overrun & underrun issues, when I run the the above GSM application with the attached asound.conf The sound card and the GSM streams are not synchronized. You need to compensate for the drift between the clocks, typically by resampling. (Jack's alsa_in/alsa_out would automatically do this.) Regards, Clemens