From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Shirkey Subject: Re: AW: usb quattro Date: Tue, 10 Sep 2002 01:36:45 +0900 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <3D7CCE1D.1020902@boosthardware.com> References: <3D77A319.3010703@boosthardware.com> <3D7912A2.1000908@boosthardware.com> <3D7C8C53.7060001@boosthardware.com> <3D7CA2FF.2030705@boosthardware.com> 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: Cc: Takashi Iwai , alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Patrick Shirkey wrote: > Currently the hw layer produces white > noise. > What is odd about this is that the noise only comes from the internal i/o. If I play through an external and use the direct monitor switch the sound is perfect. I get the most stable jack with these settings: - using the hw layer. jackd -v -R -d alsa -d quattro2 -p 4608 - using the plug layer. jackd -v -R -d alsa -d q4 -p 1017 I have tested (using ardour) a 48khz stereo sine wave. For the first example I get white noise and for the second I get an almost clean signal which sounds slightly higher pitched than it should. Note that using the previous version of the driver I could get a clean signal from all native alsa apps. -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.boosthardware.com/LAU/guide/ ======================================== "Um...symbol_get and symbol_put... They're kindof like does anyone remember like get_symbol and put_symbol I think we used to have..." - Rusty Russell in his talk on the module subsystem ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390