LAConvolver is an Audio Units plug-in for convolving the audio stream with an impulse response stored in an audio file. LAConvolver is free but donations will certainly encourage further development. Features:
Support for 1 to 128 audio channels, all with independent impulse responses
Most audio file formats supported for the impulse responses
Automatic sample rate conversion of impulse responses if needed
Low latency, determined by number of frames per slice
Sensing of silence in impulse responses gives low CPU load for delay effects
Universal but not optimized for Intel
No support for raw PCM files
Performance: The CPU-load is dependent on the number of frames per slice, larger slices give lower CPU-load. On an iBook G4 800 MHz with a sample rate of 44,100 Hz and 4,096 frames per slice the CPU-load is about 3% per second of impulse response.
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