[LAU] Sample Manager & Apps That Support Elastic Time?

[Olivier Guilyardi]

On 06/26/2010 05:14 PM, Paul Davis wrote:
> On Sat, Jun 26, 2010 at 11:03 AM, Olivier Guilyardi <ml at xung.org> wrote:
>> On 06/26/2010 01:57 PM, Paul Davis wrote:
>>
>>> Given that Rubberband was really the first library available on Linux
>>> without a license that could do high quality timestretching, its not
>>> really suprising that there are not that many apps which support this
>>> (*).
>> Rubberband is interesting, but when I had to develop a professional tool to time
>> stretch voice recordings, the quality was far from acceptable.
>>
>> In the end, I used Dirac. The quality's amazing. It's not open source, but
>> there's a free version with a rather permissive license (44.1/48Khz only).
>> Also, the author has recently added Linux object libs.
>> http://www.dspdimension.com/technology-licensing/dirac2/
>>
>> What about adding (optional) support for it in Ardour, as an alternative to
>> Rubberband?
> 
> I've been aware of Dirac for some time. Its not feasible to use his
> license in combination with Ardour without creating a fairly complex
> plugin APi. Why? His license is a license for the developer, and it
> won't permit source redistribution. Since Ardour links against at
> least 1 GPL library, it would violate the GPL to distribute Ardour
> with Dirac support as a compile+link time option. I'm not against the
> idea of a plugin API for time FX backends, I've just got better things
> to do at this point in time, and for the foreseeable future.

I see. Actually, I looked at Ardour time stretching code not so long ago. And
what I found was rather tight integration with Rubberband. I was't looking for a
plugin API, but for some simple kind of OO abstraction, that would allow to
quite easily add some new stretchers. So, unfortunately, it looks like the way
to a such plugin API is a bit long indeed...

--
  Olivier