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Maximally diffusive yet efficient feedback delay networks for artificial reverberation

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1 Author(s)
Rocchesso, D. ; Dipt. di Elettronica e Inf., Padova Univ., Italy

Feedback delay networks are widely used for simulating the diffuse part of reverberation in a room. We present particular choices of the feedback coefficients, namely Galois sequences arranged in a circulant matrix, to produce a maximum echo density in the time response. These specific sets of coefficients give implementations having a low number of multipliers, and the resulting circuit can be efficiently pipelined. The resulting networks are compared with other efficient implementations.

Published in:

Signal Processing Letters, IEEE  (Volume:4 ,  Issue: 9 )