From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [Fwd: Re: newer C-Media CMI9761A, your testpatches], unrequested headphone-out, equalizer set Date: Tue, 22 Feb 2005 12:46:14 +0100 Message-ID: References: <42162C3C.6000703@gmx.de> Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII In-Reply-To: <42162C3C.6000703@gmx.de> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: t.schorpp@gmx.de Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Fri, 18 Feb 2005 18:56:12 +0100, thomas schorpp wrote: > > hello, > > tonight i discovered one more issue: > > sound output quality of the looped through lines conn. to external > hifi-amplifier: > > - - low+high band drain > 6dB or mid-band gain > 6dB > > possible causes: > > - - driver sets headphone output instead of external ampflifier mode > (poss. wrong output impedance effecting fr-linearity) > > tried switching in mixer, result negative. > > - - the build-in equalizer is set implicitely online by the driver. Well, for fixing both cases, we would need the datasheet... Takashi ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click