convolution reverb?

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This topic contains 4 replies, has 2 voices, and was last updated by  racerg 1 year, 1 month ago.

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  • #2561

    racerg
    Participant

    Hi:

    I found your convolution patch and the code related to .wav files, etc.

    Very interesting and looks to be very good work and closely follows all I have read about convolution!

    I’d like to experiment with convolution reverb and your patch seems to be exactly what I need.

    For my reverb ideas, the environments are large, so the impulse response is a bit long, maybe 2-4 seconds.

    Will your patch work with longer impulse responses?

    Anything else I need to know in order to do this?

    -Gary

    #2562

    Martin Klang
    Keymaster

    Ah yes, the convolution reverb! I haven’t published anything about this yet because so far I only have good results with very short impulse responses, something like 200ms. I’d like to revisit this once we have solved the issue of storing data (e.g. samples and IRs) on flash.

    #2564

    racerg
    Participant

    Hi Martin:

    Thanks for the reply…

    As I said, this area interest me a lot and i don’t need to store any audio samples, I only need to store the converted .wav data…(the impulse coefficients).

    Anything i can do to try and get it from the 200 ms to about 2 seconds?

    Thanks,

    Gary

    #2570

    Martin Klang
    Keymaster

    Storing the IR on flash means that more of the SRAM is available for processing buffers, which makes the overlap-add patch much faster.

    #2572

    racerg
    Participant

    Hi Martin:

    OK, got it!

    OK- how to do the store to flash? is this and the speed as you mentioned the reason why it’s not working well on a larger IR ?

    How to do all of this…??

    Thanks,

    Gary

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