Re: [linux-audio-dev] Sample rate conversion (was .....)

2001-12-21 Thread Fred Gleason
On Fri, 21 Dec 2001, Juhana Sadeharju wrote: > The official sample rates for LAD could be 48000 Hz and 96000 Hz, > not 44100 Hz. But we need that resampler because CD is reality Um, I'm really not sure what's meant by "official" here, but I think any move to featuring support only for certain "o

[linux-audio-dev] wrapup on linux-audio-developer MWPP discussion ...

2001-12-21 Thread John Lazzaro
[note to AVT folk -- several other MIDI-over-IP developers on the LAD list surfaced, an extensive discusion on the two major potential change areas of MWPP -- high-bandwidth MIDI streams and MIDI System commands -- followed.] Hi LAD-folk, Thanks for all of the MWPP-related comments

Re: [linux-audio-dev] Still I cannot understand why...

2001-12-21 Thread dave willis
On Fri, 21 Dec 2001, Jussi Laako wrote: > Making music mostly. It's fairly easy to learn and I have to be able > to combine audio tracks, loop tracks, software synths and midi synths > in reasonable way. Btw. I make mostly progressive trance, hard house > and some remixes... i don't doubt that y

Re: [linux-audio-dev] Latencytest results

2001-12-21 Thread Jussi Laako
Paul Davis wrote: > > nobody can comment much on these graphs when they are generated with > an IDE disk system for which the hdparms set up is not reported. Now those are reported, see below. > however, it would appear that there are potential problems with the > video adaptor that you have wh

Re: [linux-audio-dev] Sample rate conversion (was .....)

2001-12-21 Thread Erik de Castro Lopo
On Fri, 21 Dec 2001 21:35:41 +0200 Juhana Sadeharju <[EMAIL PROTECTED]> wrote: > >From:Erik de Castro Lopo <[EMAIL PROTECTED]> > > > >My version uses sinc interpolation by small integer factors (2,3,4,..) > >followed by linear or cubic interpolation. This should even allow time > >varying

Re: [linux-audio-dev] Sample rate conversion (was .....)

2001-12-21 Thread Juhana Sadeharju
>From: Erik de Castro Lopo <[EMAIL PROTECTED]> > >My version uses sinc interpolation by small integer factors (2,3,4,..) >followed by linear or cubic interpolation. This should even allow time >varying SRC. Two step FIR interpolation followed by spline/lagrange interpolation seems to be used qui

Re: [linux-audio-dev] learning DSP?

2001-12-21 Thread Juhana Sadeharju
>> To switch topic a bit, I just came across "The Scientist and Engineer's >> Guide to Digital Signal Processing" on the web - does anybody have any >> comments about the quality of this as an intro to DSP? Any recommendations >> for other DSP sources? www.dspguide.com leads to the above book, ju

Re: [linux-audio-dev] Still I cannot understand why...

2001-12-21 Thread Jussi Laako
dave willis wrote: > > do you use your computer for making music, or do you use it for studio > engineering work? if the latter, then i can see how you like sonar and > want something like that on linux. however, if you are more into Making music mostly. It's fairly easy to learn and I have t

Re: [linux-audio-dev] Still I cannot understand why...

2001-12-21 Thread Jussi Laako
Ivica Bukvic wrote: > > there are already people who have successfully compiled it on mac's, and > I believe it would probably not be so hard to port it to other platforms > (except for building the low-level end of the audio hw drivers). Here's the point. When designing low-level layer care sho

Re: [linux-audio-dev] Still I cannot understand why...

2001-12-21 Thread Jussi Laako
"M. Edward (Ed) Borasky" wrote: > > > I'll gladly switch to ALSA when there's something that matches Cakewalk > > SONAR. But I also strongly believe that such program is possible to > > write using OSS also. > > It is *not* possible to write for a sound card unsupported by OSS. I didn't get th

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread Sebastien Metrot
You can have a look at the specs here: http://www.math.tu-berlin.de/~sbartels/unitor/ German only and I don't speak german :-(( (if anybody wants to translate the document I'm willing to help maintaining the driver... Sebastien - Original Message - From: "martijn sipkema" <[EMAIL PROTEC

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread Phil Kerr
Hi list, Nice discussion. I've been AFK over the last few days and i'm catching up here. DMDI requires a higher bandwidth than MIDI. Cat 5 has higher throughput than bell wire. The packetization of DMIDI can be very efficient. When receiving MIDI notes from an interface DMIDI has to introduc

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread martijn sipkema
> The AMT8 have a similar system to reduce the timing errors. In fact the > sequencer device in the midi windows API does have a similar scheme: you > send blocks of data in which every midi message is time stamped. I imagine > the driver does the clock translation for you. Emagic would not give

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread Sebastien Metrot
The AMT8 have a similar system to reduce the timing errors. In fact the sequencer device in the midi windows API does have a similar scheme: you send blocks of data in which every midi message is time stamped. I imagine the driver does the clock translation for you. Sebastien - Original Mess

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread martijn sipkema
> > I agree. The idea of combining messages into a packet might > > be interesting > > when the source of the MIDI stream is a sequencer application instead > > of a human playing on a MIDI keyboard. Here MIDI events can be known > > ahead of time and could be sent in in bursts and the MIDI > > st

Re: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread Dominique Fober
> >We've clocked sustained, two-handed, fast piano improvisation at about >20 events per second -- significantly less than the 1000-event "maxing >out the MIDI cable" number above. For the MWPP target application of >network musical performance of musical groups, the "number of events >produced by

Re: [linux-audio-dev] Equalizer(was Still blabla...) and more

2001-12-21 Thread Steve Harris
On Thu, Dec 20, 2001 at 09:12:34 +0200, Jussi Laako wrote: > Alexander Ehlert wrote: > > > > That should be way faster than FFT. Using FFT your frequency bands > > are distributed linear over the frequency range. That is untypical > > for equalizers anyway, as they always use a logarithmic scale.

RE: [linux-audio-dev] Introducing DMIDI

2001-12-21 Thread mikko . a . helin
Hi. > -Original Message- > From: ext martijn sipkema [mailto:[EMAIL PROTECTED]] > Sent: 20. December 2001 13:40 > To: [EMAIL PROTECTED] > Subject: Re: [linux-audio-dev] Introducing DMIDI > > > I agree. The idea of combining messages into a packet might > be interesting > when the sourc

Re: [linux-audio-dev] learning DSP?

2001-12-21 Thread andrew
This is from ancient memory (I'm reading this list out of curiousity and haven't done any DSP for years). IIRC, you want to search for info on Z transforms, which are the discrete equivalent of S transforms which are just Laplace transforms by a different name. I come from a physics/maths backg

Re: [linux-audio-dev] Equalizer(was Still blabla...) and more

2001-12-21 Thread Richard Guenther
On Thu, 20 Dec 2001, Paul Davis wrote: > its getting increasingly difficult to distinguish GLAME's goals from > the successfully realized goals of jMax, other than the inclusion of > an editor in GLAME. are there are any other substantial differences? Well, GLAMEs main task is to do audio editin

Re: [linux-audio-dev] learning DSP?

2001-12-21 Thread Joshua Haberman
* Stuart Allie ([EMAIL PROTECTED]) wrote: > Okay, Paul's initial explanation and Lamar's comments make it (eq via delay > lines) fairly obvious in hindsight, thanks guys. > > To switch topic a bit, I just came across "The Scientist and Engineer's > Guide to Digital Signal Processing" on the web

Re: [linux-audio-dev] learning DSP?

2001-12-21 Thread Frank Barknecht
Stuart Allie hat gesagt: // Stuart Allie wrote: > To switch topic a bit, I just came across "The Scientist and Engineer's > Guide to Digital Signal Processing" on the web - does anybody have any > comments about the quality of this as an intro to DSP? Any recommendations > for other DSP sources?

Re: [linux-audio-dev] learning DSP?

2001-12-21 Thread dave willis
On Fri, 21 Dec 2001, Stuart Allie wrote: > To switch topic a bit, I just came across "The Scientist and > Engineer's Guide to Digital Signal Processing" on the web - does > anybody have any comments about the quality of this as an intro to > DSP? Any recommendations for other DSP sources? dave p