Date: Thu, 03 Oct 2002 16:24:18 -0700 From: Ken Marx <kmarx@vicor.com> To: FreeBSD Multimedia <freebsd-multimedia@FreeBSD.ORG> Subject: static w/ vchans > 0 Message-ID: <3D9CD1A2.11532472@vicor.com>
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Hi, On 4.4-RELEASE-p13, I have pcm0: <Creative CT5880-C>, which requires virtual channels to do full duplex audio: pcm0: <Creative CT5880-C> at io 0x9000 irq 15 (1p/1r/2v channels duplex) This works fine, but the playback tends to be pretty fuzzy/static-y. I assume this is due to interleaving the dma (but could be wrong, of course). So, my questions are: 1. What causes this (if my guess is wrong)? 2. Is there a remedy short of getting a muti-channel card? If the the anwer to #2 is no, then: 3. does anyone have a recommendation for an inexpensive alternative? This is for a production system with as many as 100+ machines. So cost is an issue. Thanks, k. -- Ken Marx, kmarx@vicor-nb.com We have to move. We must march shoulder to shoulder and slam dunk the milestones. - http://cgi.bigshed.com/~kmarx/cgi-bin/speak.cgi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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