Date: Tue, 26 Aug 1997 20:55:14 -0700 From: Amancio Hasty <hasty@rah.star-gate.com> To: Ian Freislich <iang@digs.iafrica.com> Cc: dec@phoenix.its.rpi.edu (David E. Cross), multimedia@FreeBSD.ORG Subject: Re: Stuttering in Mpeg3 playback Message-ID: <199708270355.UAA02516@rah.star-gate.com> In-Reply-To: Your message of "Sat, 26 Aug 1997 21:28:57 %2B0200." <E0x3RIP-00014d-00@brane.digs.iafrica.com>
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>From The Desk Of Ian Freislich : > FWIW: I have the old Gravis Ultra Sound 3.4 with 1024k RAM on board > and I'm running the guspnp17 driver. > > > Has anyone else experienced this. Is it a problem with my sound card, > > the kernel, or OSS? > > I have found that this problem is less pronounced if I use mpg123 > version 0.59g. > > I suspect a kernel/OSS problem since I made some mods to the buffer > routine in mpg123 to only start playing once it had filled up the > buffer. In this test I set the buffer size to 4096k. Even when it > started playing with 4096k of pre-buffered audio it still stuttered. > > Something else of note is that when it started playing I used to > get those 'isa_dmastart: channel %d busy' messages for the duration > of the stutter until that routine was moved into the sound driver > or the message was removed from isa.c. > Hi Ian, Care to post your gus configuration ? my config is CPU PPro 200Mhz, 48Mb gusp pnp pro with 1mb of memory Checking for GUS Plug-n-Play ... Board Vendor ID: GRV0001 Board Serial Number: ffffffff gus0 at 0x220 irq 11 drq 5 flags 0x107 on isa I don't get any stutter when playing mp3 44khz 16bit mpeg streams Tnks, Amancio
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