[Mixxx-devel] [PATCH] SSE3 EngineFilterIIR, take 2 (1.8.1)

2011-01-09 Thread Gabriel M. Beddingfield
Gentlemen: Attached is a patch against Mixxx 1.8.1 to add an SSE3 optimized IIR filter. I'll post a patch against trunk later. In a test environment, this gives about a 70% speed boost on a prescott processor (T2400 @ 1.83 GHz). When using valgrind/callgrind with Mixxx 1.8.1 I measure a

Re: [Mixxx-devel] How does Mixxx work?

2011-01-09 Thread Vaughan Johnson
On 1/9/2011 5:11 PM, Vaughan Johnson wrote: On 1/8/2011 4:36 AM, Mikael Bouillot wrote: snip Second, I now need another functionality, and it seems I'm going to have a much harder time hacking *that* in: I want to change the pitch of a track without changing its tempo. Right now, I set

Re: [Mixxx-devel] How does Mixxx work?

2011-01-09 Thread Vaughan Johnson
On 1/8/2011 4:36 AM, Mikael Bouillot wrote: snip Second, I now need another functionality, and it seems I'm going to have a much harder time hacking *that* in: I want to change the pitch of a track without changing its tempo. Right now, I set Pitch behaviour to Vinyl emulation (because

Re: [Mixxx-devel] How does Mixxx work?

2011-01-09 Thread Owen Williams
On Sat, 2011-01-08 at 12:36 +, Mikael Bouillot wrote: Right now, I set Pitch behaviour to Vinyl emulation (because Pitch independent time stretch sounds like c**p), and thus the pitch and tempo change simultaneously when I change the rate of the track. In theory, if I combine both modes

Re: [Mixxx-devel] How does Mixxx work?

2011-01-09 Thread Albert Santoni
On Sat, Jan 8, 2011 at 4:36 AM, Mikael Bouillot csbhp...@corbac.com wrote: Greetings, Mixxx developers! I'm using Mixxx 1.7.2. I tried 1.8, and promptly reverted back. In order to do nice mashups, I hacked a nifty little thing into it that allows one to navigate synchronously in each track,