Re: [LAU] Bridging alsa and jack midi - Linux-audio-user

27 Sep 2014

Le 26 sept. 2014 à 23:42, linux-audio-user-request(a)lists.linuxaudio.org a écrit :

...
  Message: 12
 Date: Fri, 26 Sep 2014 19:21:13 +0000
 From: Fons Adriaensen &lt;fons(a)linuxaudio.org&gt;
 To: Paul Davis &lt;paul(a)linuxaudiosystems.com&gt;
 Cc: linux-audio-user &lt;linux-audio-user(a)lists.linuxaudio.org&gt;rg>, Philipp
 	?berbacher &lt;murks(a)tuxfamily.org&gt;
 Subject: Re: [LAU] Bridging alsa and jack midi
 Message-ID: &lt;20140926192113.GA434(a)linuxaudio.org&gt;
 Content-Type: text/plain; charset=us-ascii

 On Fri, Sep 26, 2014 at 10:50:06AM -0400, Paul Davis wrote:

  the developers of jack2 have so far not bothered
to integrate the "shared"
 repository for jack tools into their source code.  
 And they are still using the completely broken resampling code
 from alsa_in/out wherever this function is needed.

 At my new work place (the research center of a very big
 corporation) I'm currently trying to push jack2 on Windows
 as a solution for some of the problems we're facing.
 We've been doing some tests this week, and the showstopper
 is the really abysimal performance of all of the jack2 tools
 that depend on resampling.

 If the jack2 devs don't fix this and do it very soon, then
 we will - by porting zita-ajbridge (where the 'a' will stand
 for ASIO) and zita-njbridge to Windows. And probably also by
 rewriting the the backend and make it use ASIO directly 
 instead of going through Portaudio. Why on earth should
 a system such as Jack support anything but ASIO ?

 Tschuss,

Hi Fons,

The "developers of jack2" (…) don't have time right now to invest for this
resampling code rewrite, but will be very interested to zita-ajbridge working. Concerning
direct ASIO backend support, attached is some files I started to write some months ago,
taking the LinuxSampler code base as a starting point. But the code is absolutely not
ready as has even not been compiled….

Would "the research center of a very big, corporation" be ready to put some
money to have theses development be accelerated ? 

(in any case,  I can at least compile any new code base on the Windows development machine
we have, and publish new Windows binaries, and probably do the same on OSX). 

Stéphane