From DRC

Convolver

Convolver, available from convolver.sf.net, is

• a DSP plug-in for Windows Media Player 9/10. The install package also contains

• two DirectX/DirectShow filter versions — ConvolverWrapper or the equivalent ConvolverFilter — for Adobe Audition and other applications such as Zoom Player Pro and TheaterTek 2.2, or J.River Media Center (when used with the DirectX host plug-in). Finally, there are a number of

• command line applications for testing performance, and convolving files directly, for example

It will take a set of impulse response files and convolve them with sound paths mixed from the input channels, mixing the results into a set of specified output channels.

In particular, you can use this package to apply impluse response filters generated by DRC.

Features:

• Performance is already very good, and subject continual improvement
• Arbitrary-length convolutions (1 million tap limit imposed only as a sanity check)
• Multiple channel input and output, PCM and IEEE Float
• Mixing and scaling of both inputs and outputs; attenuation of source
• Wide range of impulse file formats accepted (including WAV and raw 32-bit PCM)
• Windows Media Player plug-in and DirectShow filter interfaces
• Runs on all x86 cpus