Thu, 10 Jul 2008 07:02:18 +0000 Made a very significant optimization to the FIR filter which I believe I can take a little further. Right now the FIR filter size is 768 and I get some free() bugs, so this is something I need to debug. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Thu, 10 Jul 2008 07:02:18 +0000] rev 2662
Made a very significant optimization to the FIR filter which I believe I can take a little further. Right now the FIR filter size is 768 and I get some free() bugs, so this is something I need to debug.
Wed, 02 Jul 2008 08:04:50 +0000 The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Wed, 02 Jul 2008 08:04:50 +0000] rev 2661
The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
Wed, 02 Jul 2008 07:25:02 +0000 Cleaned up some bugs, but the FIR filter is still distorting. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Wed, 02 Jul 2008 07:25:02 +0000] rev 2660
Cleaned up some bugs, but the FIR filter is still distorting.
Sun, 22 Jun 2008 00:36:35 +0000 Fixed lots of bugs in FIR filtering. Fixed point code is closer to working, but there seems to be overflow in the FIR filter resulting in distortion. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Sun, 22 Jun 2008 00:36:35 +0000] rev 2659
Fixed lots of bugs in FIR filtering. Fixed point code is closer to working, but there seems to be overflow in the FIR filter resulting in distortion.
Thu, 19 Jun 2008 20:11:06 +0000 IIR filtering now seems to work fine. Fixed point code also seems to be good. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Thu, 19 Jun 2008 20:11:06 +0000] rev 2658
IIR filtering now seems to work fine. Fixed point code also seems to be good.
Wed, 18 Jun 2008 22:42:27 +0000 Implemented a lot of fixed point code for the filters. The SDL_FixMpy functions currently don't work properly -- there are some issues with signed vs unsigned. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Wed, 18 Jun 2008 22:42:27 +0000] rev 2657
Implemented a lot of fixed point code for the filters. The SDL_FixMpy functions currently don't work properly -- there are some issues with signed vs unsigned.
Wed, 18 Jun 2008 18:55:50 +0000 Began implementing IIR and FIR filters, and got zero stuffing and sample discarding working. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Wed, 18 Jun 2008 18:55:50 +0000] rev 2656
Began implementing IIR and FIR filters, and got zero stuffing and sample discarding working.
Wed, 18 Jun 2008 04:51:10 +0000 Added beginnings of resampling code. gsoc2008_audio_resampling
Aaron Wishnick <schnarf@gmail.com> [Wed, 18 Jun 2008 04:51:10 +0000] rev 2655
Added beginnings of resampling code.
Wed, 23 Apr 2008 06:26:21 +0000 Creating GSoC 2008 code branches gsoc2008_audio_resampling
Sam Lantinga <slouken@libsdl.org> [Wed, 23 Apr 2008 06:26:21 +0000] rev 2654
Creating GSoC 2008 code branches
Mon, 25 Aug 2008 20:49:36 +0000 Fixed haptic dummy driver not compiling with some compilers. gsoc2008_force_feedback
Edgar Simo <bobbens@gmail.com> [Mon, 25 Aug 2008 20:49:36 +0000] rev 2653
Fixed haptic dummy driver not compiling with some compilers.
(0) -1000 -300 -100 -10 +10 +100 +300 +1000 +3000 tip