2010/2/4 Jens M Andreasen <jens.andrea...@comhem.se>: > > Zap the Gnome on steroids and dedicate your GPU for audio then! >
How to ? Where is the switch that would tell ladspa/dssi to use the GPU for processing ? > I have success with 3 audio buffers в 0.3 ms + another 0.3 ms for the > PCIe roundtrip to the GPU. Voicecount is well into the hundreds and then > some ... > That sounds marvelously. I found this information for DSP Accelerators http://www.thomann.de/gb/onlineexpert_127.html as well as this interresting device: http://www.uaudio.com/products/uad/uad2sl/index.html (I assume that it's not supported on linux) Those just work with special code-adjusted plugins. Does the VST API support them or even use them if present ? Do the RMI devices have plugin-accelerating DSPs ? Would it be worth to design an open-hardware DSP-add-on with an open API ? Since GPUs are very common already and have the fast PCIe connection using them may be more appropriate, I think. Running the rt-check script, indeed, I found some issues. Fixed them. Now, the only remaining warning is: Checking for Generic PCI bus-master DMA support... not found. ** Kernel without Generic PCI bus-master DMA support I retested with an undemanding 130 MB piano gig-file. Results: - Linuxsampler runs stable at 8ms. Great. - I'm able to play fast Sequences with PianoTecTrial at 16ms. I'm not allowed to use sustain or play quick chord progressions. They produce xruns and hard noise then. - yoshimi 054-pre4 behaves comparable to PianoTec at 16ms, but slightly worse. It produces occasional xruns even without chord-progressions. Likely conclusion: My system is not fast enough for this kind of processing, or somehow has a bad hareware-design. I will buy a new machine next year with 8 processors hopefully... Until then, the GPU seems the only miracle that could possibly help me out. Would it ? Thank you, replyers, for your replys and suggestions. -- E.R. _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev