From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: Problem with multiopen on SB Audigy 2 Date: Tue, 07 Oct 2003 18:00:22 +0100 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3F82F126.4000800@superbug.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: alsa-devel List-Id: alsa-devel@alsa-project.org I have 2 sound cards, card 0 is the motherboard intel/alc650 one, and card 1 is a SB Audigy2 Playing two streams at once on device "front:1" works: - aplay -D front:1 filename.wav aplay -D front:1 filename.wav So, this is playing two files to the SB Audigy2 front speakers. I can hear the two files being mixed together and output together to a single set of speakers. Playing two streams at once on device "rear:1" fails: - aplay -D rear:1 filename.wav aplay -D rear:1 filename.wav So, this is trying to play two files to the SB Audigy2 rear speakers. The first files comes out of the rear speakers, but the output from the second aplay command fails with: - bash-2.05b# aplay -D rear:1 filename.wav Playing WAVE 'filename.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo ALSA lib setup.c:94:(snd_sctl_install) Cannot lock ctl elem aplay: set_params:876: Unable to install hw params: ACCESS: RW_INTERLEAVED FORMAT: S16_LE SUBFORMAT: STD SAMPLE_BITS: 16 FRAME_BITS: 32 CHANNELS: 2 RATE: 44100 PERIOD_TIME: (125011 125012) PERIOD_SIZE: 5513 PERIOD_BYTES: 22052 PERIODS: 2 BUFFER_TIME: (250022 250023) BUFFER_SIZE: 11026 BUFFER_BYTES: 44104 TICK_TIME: 1000 Can you explain why this might be happening? Cheers James ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf