From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lars Schotte Subject: C-Media CMI8738-LX noise in recording from line in Date: Thu, 1 Apr 2010 03:18:25 +0200 Message-ID: <20100401031825.557be2bc@romy.gusto> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from ms16-1.1blu.de (ms16-1.1blu.de [89.202.0.34]) by alsa0.perex.cz (Postfix) with ESMTP id 5246910380C for ; Thu, 1 Apr 2010 03:18:31 +0200 (CEST) Received: from [78.99.186.124] (helo=romy.gusto) by ms16-1.1blu.de with esmtpsa (TLS-1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.69) (envelope-from ) id 1Nx93D-000755-QO for alsa-devel@alsa-project.org; Thu, 01 Apr 2010 03:18:27 +0200 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org I have this Sweex Sorround sound card PCI and I want to use it for recording / digitalizing / magnetic and other media types through line-in. I have to use that card (or another) because the built-in sound card doesnt work /is broken/. The soundcard has following chipset - C-Media CMI8738-LX. So I try to record from the line in input, which works for listening, so line in input is played good through line out then. I dont know if there is a passthrought or sth. however, when I record it, using audacity, or even alsarecord / it doesnt matter / the sound is reported and also actually is too silent and there is a lot of noise. So with that noise, this card is for digitalizing useless. this soundcard has physically no shared connector with the rear, or bass or whatever. so there are 5 connectors, line in, mic in, front, rear and cent/sub. each for himself. maybe thats the case, that the old ones did have shared one and therefore it breaks the recording or whatever, just a theory. because a few years ago i had an old cmipci and that one worked fine. just to be clear, there is sound, so it records, the problem is that its too silent and there is a lot of noise in it. i write this note because I saw some reports that suggest that it produces _only_ noise in recording. thats not the case here. -- ------------------- Lars Schotte @ romy