LAConvolver

LAConvolver Publisher's Description:
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

Known issues:

* Limited testing, especially on Intel
* Universal but not optimized for Intel

Performance:
The CPU-load is highly 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 4096 frames per slice the CPU-load is about 3% per second of impulse response.