If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Audio processing via GPU
Came across a very interesting subject -- Efficient 3D Audio
Processing on the GPU. It's available at http://www-sop.inria.fr/reves/projects/GPUAudio/ What interest about it is the ingenuity of the project, in tapping into the enormous power of the GPU -- even the low-end videocards based on Radeon HD 2600 GPU has 120 stream processors running in parallel !!! -- in doing something truly amazing. According to the article -- in comparing an optimized SSE assembly code running on a Pentium 4 3GHz processor and an equivalent Cg/OpenGL implementation running on a nVidia GeForce FX 5950 Ultra graphics board on AGP 8x, with the following result .... "The SSE implementation achieves real-time binaural rendering of 700 sound sources, while the GPU renders up to 580 in one time-frame (about 22.5 ms). Assuming floating-point texture resampling could be done in hardware, not requiring explicit interpolation in the shader, the GPU could render up to 1050 sources. For mono processing, the GPU treats up to 2150 (1 texture fetch) / 1200 (2 texture fetches and linear interpolation) sources, while the CPU handles 1400 in the same amount of time. On average, the GPU implementation was about 20% slower than the SSE implementation but would become 50% faster if floating-point texture resampling was supported in hardware." If you read the above quote, please pay attention to the fact that the GPU was an ancient GeForce FX 5950 Ultra, circa 2003 !! Imagine what we can achieve with super-duper-ultra-powerful GPUs that are on our videocards?? And if that's not enough, imagine what we can do if we can tap into the raw power of the GPUs, with assembly language?? The entire soundcard industry would crash and burn overnite !! |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Audio processing via GPU | [email protected] | Nvidia Videocards | 5 | April 13th 08 08:04 PM |
PPU (physical processing) | Zenta | General | 1 | May 20th 06 02:42 AM |
Ebuyer RMA processing times | Paul-ust | UK Computer Vendors | 5 | September 21st 04 01:20 AM |
Most processing power/Watt | ~misfit~ | General | 26 | July 22nd 04 11:47 PM |
dual processing ??? | don ward | General | 2 | April 1st 04 12:50 AM |