>> I've tried searching the alsa list archives, but the search always >> comes up with zero results regardless of term(s) entered. >> >> I have a Dell Latitude C810, which integrates an ESS Maestro3 chip for >> sound. I am using it's line in jack for recording. What is happening >> is that the amplitude of samples during recording never exceed appx >> 26,000. The audio 'clips' at that point, instead of the normal >> ~32,000 mark. >> >> This doesn't seem to affect the quality of the recorded audio. If >> record levels are adjusted properly, everything below ~26,000 seems >> good. The only problem with it this way is a slight loss in >> precision, as the full sample rate amplitude is not being used, and I >> suppose therefore a slight loss in dynamic range. Also, other >> programs can't tell when the signal is clipping, because it never >> reaches the 32,000 mark of normal 16bit audio. >> >> I have checked the recording behavior under windows to make sure it >> wasn't a hardware problem, and everything seems fine under windows, ie >> full amplitude signal coming in. >> >> I have also tried multiple versions of alsa, 0.94, 0.98, 1.01, and >> 1.02 I think. All versions seem to do the same thing. >> >> Is this a known problem, or has anyone else encountered it?
>i have the same problem, i have a dell i8k and certainly never use it >for recording. on lappies generally, on-board sound seems to pick up a >measure of board noise so i just use my lappie for a little editing and >some realtime DSP when performing. The sound on my C810 is actually pretty clean / clear. I measured the noise floor at about -88db, which for a laptop, and just casual recording, is pretty good. I haven't been able to get Jack to work properly yet, so haven't played around with the realtime effects. ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id56&alloc_id438&op=click _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
