From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <398950D9.2373EC50@gmx.de> Date: Thu, 03 Aug 2000 13:00:41 +0200 From: Matthias Pfisterer MIME-Version: 1.0 To: alsa-devel@alsa-project.org CC: linuxppc-dev@lists.linuxppc.org Subject: Re: [alsa-devel] Re: ALSA sequencer + Timidity on GNU/Linux PPC References: <200008030930.KAA12700@hyperion.valhalla.net> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Iain Sandoe wrote: > > On Thu, Aug 3, 2000, Matthias Pfisterer wrote: > > I tried the above combination (plus pmidi). It generally works; timing > > seems to be correct. However, the sound of most (all?) notes is very > > distorted. Is there any way to debug this? Timidity in standalone-mode > > works ok---some timing problems if doing real-time playback, but perfect > > in doing batch-processing (rendering to a wav file). > > I'm using alsa-drivers 0.5.8b, Timidity 2.10.0a3 and a patched dmasound > > driver (that's the OSS driver for Macs, sorry, no ALSA driver for it > > yet). > > Which kernel (2.2.17pxx or 2.4.0?) 2.2.17pre10-ben2 + your dmasound patch + my hacks. I wanted to clean up by using Ben H. newest version, but found no rsync URL for the 2.2.17xxx tree, only for 2.4.x. Anybody can send it me? > (a) What frag sizes & number of frags are you using for the driver? I started Timidity like this: % timidity -c /etc/timidity.cfg -iA -B2,8 > > (b) I think we may have an issue with the order in which SNDCTL_XXX IOCTLs > are sent to the dmasound driver. This is being investigated (today) as it > came to light last night... > > It is possible that the distortion is simply that the mode that Timidity > *thinks* it has set is different for what is *actually* set in the driver. > > Once the kernel (OSS) driver is "sorted" I will (if no-one else > volunteers/does it in the meantime) try to get an ALSA one going ASAP. > > BTW I will try and replicate the effect if you mail me the configs/URLs > (off-list). Last time I tried Timidity I didn't get any action :-( but I > had very little time to experiment. Will do this in the afternoon/evening. I'm in hurry now. Matthias ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/