From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Courtier-Dutton Subject: Re: Audigy DSP questions. Date: Tue, 20 Sep 2005 08:53:23 +0100 Message-ID: <432FBFF3.3010804@superbug.co.uk> References: <432D8AA7.4040203@superbug.co.uk> <432DA3D7.2070904@superbug.co.uk> <432DAB41.9070508@superbug.co.uk> <1127163909.9899.46.camel@mindpipe> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1127163909.9899.46.camel@mindpipe> 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: Lee Revell Cc: alsa-devel List-Id: alsa-devel@alsa-project.org Lee Revell wrote: > On Sun, 2005-09-18 at 19:00 +0100, James Courtier-Dutton wrote: > >>James Courtier-Dutton wrote: >> >>>I think I have worked it out. >>>Take each value and divide by 0x80000000 to get a value between 0 and 1. >>>This is then converted into dB with >>>0 == Mute >>>0x01571f82 == -19.8 dB >>>0x7fffffff == 0 dB >>>With each value being a constant step of 0.2 dB. >>> >>>James >>> >>> >> >>Did anyone spot the deliberate mistake? >> > > > I give up, what is it and why do you think it's deliberate? > > Lee > The dB values are all half what they should be. Mixed up power and volts. ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php