Date: Sun, 30 May 1999 13:33:05 +0200 (MET DST) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: dfr@nlsystems.com (Doug Rabson) Cc: bright@rush.net, multimedia@FreeBSD.ORG Subject: Re: sound still seems weird after newbus. Message-ID: <199905301133.NAA16726@labinfo.iet.unipi.it> In-Reply-To: <Pine.BSF.4.05.9905301128540.406-100000@herring.nlsystems.com> from "Doug Rabson" at May 30, 99 11:29:40 am
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> > mss_detect error, busy still set (0xff) > > pcm0 at port 0x220 irq 10 drq 3 flags 0x15 on isa0 > > > > It used to work fine, but since "new-bus" x11amp for FreeBSD > > from the opensound people skips a lot, running x11amp in linux > > emulation also skips. > > > > mpg123 runs fine. > > > > any clues? anyone else have this problem? I'm 99.99% sure this > > problem only started after newbus. It's odd how mpg123 works fine > > though... mpg123 has an option (not sure if it is a default or not) to make use of large buffers (2..5s worth of audio) for decoded data in user space, whereas amp probably decodes 'live'. large buffers help mask latency problems in fetching mpeg data from disk. Second difference could be the size of DMA transfers requested by the two apps. cheers luigi -----------------------------------+------------------------------------- Luigi RIZZO, luigi@iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) http://www.iet.unipi.it/~luigi/ngc99/ ==== First International Workshop on Networked Group Communication ==== -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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