From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: C-Media CMI8738-LX noise in recording from line in Date: Thu, 01 Apr 2010 11:52:38 +0200 Message-ID: <4BB46CE6.1000103@ladisch.de> References: <20100401031825.557be2bc@romy.gusto> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out3.smtp.messagingengine.com (out3.smtp.messagingengine.com [66.111.4.27]) by alsa0.perex.cz (Postfix) with ESMTP id A2B56103830 for ; Thu, 1 Apr 2010 11:52:41 +0200 (CEST) In-Reply-To: <20100401031825.557be2bc@romy.gusto> 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: Lars Schotte Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Lars Schotte wrote: > The soundcard has following chipset - C-Media CMI8738-LX. This chip was designed before on-board sound devices were common, and manages to have worse analog sound quality than many of those, especially on its inputs. > So I try to record from the line in input, ... > its too silent and there is a lot of noise in it. Even if your current mixer settings are suboptimal and can be improved (please show the output of "amixer contents" or the alsa-info output), be aware that this card never will have good quality. Regards, Clemens