Considering that this has had no responses for more than a few days, I am bringing it up for anyone new that has been added onto the list.
The noise issue has not been resolved, and continues to plague my recordings... System Specs: AMD 1.7GHz processor 512Meg RAM 500Meg Swap 41 Gig hard drive, with Knoppix v3.3 (2,4,22-xfs kernel) hard drive installed ALSA installed, and working... ALSA Information: Driver version 1.0.2c Sound Card: VIA686A - VIA 82C686A/B rev50 I wouldn't have brought this up a second time, if not for the fact that: One, my business is at a stand-still until I can get a "clean" recording, and two, this is still un-resolved. Thank you for anyone who can get me, and my business, back into running again... Casey On Tuesday 09 March 2004 07:46, Casey Heshler wrote: > On Tuesday 09 March 2004 18:15, Bill Unruh wrote: > > On Tue, 9 Mar 2004, Casey Heshler wrote: > > > On Tuesday 09 March 2004 01:48, Bill Unruh wrote: > > > > On Mon, 8 Mar 2004, Casey Heshler wrote: > > > > > On Tuesday 09 March 2004 01:20, Bill Unruh wrote: > > > > > > On Mon, 8 Mar 2004, Casey Heshler wrote: > > > > > > > On Tuesday 09 March 2004 00:45, Bill Unruh wrote: > > > > > > > > On Mon, 8 Mar 2004, Casey Heshler wrote: > > > > > > > > > > But PLEASE - before finally removing ALSA, record the > > > > > > > > > > type of static/noise you get and place it somewhere for > > > > > > > > > > others to download/diagnose. Otherwise you would have > > > > > > > > > > filed irate complaint after irate complaint without > > > > > > > > > > anyone being able to diagnose the issue with some helpful > > > > > > > > > > data. ;-) > > > > > > > > > > > > > > > > > > I would love for "someone" to hear what I am hearing - I > > > > > > > > > can post a 10 second WAV file, but my concern is - how, and > > > > > > > > > where, do I do this? Can I place the file in a "common" > > > > > > > > > local location, and then post the target area??? > > > > > > Bill, didn't have ncftp, but I was able to follow your directions on > > > the "ftp" - the file (wav) has been placed where you asked, and under > > > the name you requested. Hope this helps with a little diagnosis... > > > > The file is at > > ftp.theory.physics.ubc.ca/outgoing/heshler.wav > > and can be downloaded via anonymous ftp. > > > > And teh noise really looks like noise. It has different levels in the > > two channels, and is up to 40 bytes wide (10 samples) of consistant > > level-- ie the signal level does not change much in that 40 bytesi-- > > however the signal level in the two channels differs. It occurs in quiet > > areas and in "full volume" areas. (The max amplitude of the signal is > > about 50% of the max possible, and the noise spikes go up to about 25% > > but with very varied heights.) It looks almost like some sort of > > electical noise. > > > > Remind us again how this was recorded? > > This sound clip was recorded with ReZound, but I get it with "any" > recorder; Audacity, Sound-Recorder, and even KRecord - The sound clip is > coming in from a cassette tape deck in through the "Line In" of the VIA > Sound Card - with "Capture" set on the "Line In". > > The sound clip was "monitored" - i.e. I listen to the "Line In" while I > record, and the noise is not in the sound at that time. I have the levels > set to about 65% - I view and change the levels through AlsaMixer, > AlsaMixerGUI, and - my preferance - KMix - This recording clip was done as > a last ditch effort to eliminate possible "feedback" from other channles - > I muted all channels except for IGain in KMix, or the "Capture" in the ALSA > mixers, and still the noise, as apparent, was still introduced. > > I playback through a combination of players, preferance being ReZound > because I think I need to change sample rates, from what I had problems > early on, my sample rate for my sound card appears to use 48KHz. But, I > also can use aplay, XMMS, ReZound, and Audacity for playback - most of the > time I need to use a player that has a "visual" editor, because this "sound > clip" is part of a 45 to 50 minute analog tape speach, that I one-pass to > digitize, then second pass, strip out each speach, final pass is to remove > pre and post silence and get the sound speach ready for cd audio burning. > Which is they business I provide for my customers. > > Thank you Bill, for proving I am not insane, and that the noise is "real". > Hopefully someone can resolve this - as I said before - this has "only" > shown up since I changed to ALSA - it was not in my previous sound with > Knoppix/Debian, and nothing has been changed in the sound system other than > that. > > Casey ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
