AES E-Library

An Alternative Approach for the Convolution in Time-Domain: The Taches-Algorithm

We present an alternative temporal approach for convolution, providing a new algorithm, called the taches-algorithm. Based on interferences between the successive delayed and amplified output signals associated respectively with the impulses constituting the input signal, the taches-algorithm can give access immediately to the new output sample and have a low latency response even without using vector-based optimisation of the calculation. With the taches-algorithm it seems easy to change (even in real-time) the impulse response while running the calculation, simply by updating the impulse response to use it for next samples, a task rather difficult to achieve using FFT convolution. Real-time audio demonstrations using notably Pure Data and simple explanations of the taches-algorithm will be given.

Authors: Millot, Laurent; Pelé, Gérard
Affiliation: IDEAT (Univ. Paris 1)/ENS Louis-Lumière
AES Convention:124 (May 2008) Paper Number:7412 Import into BibTeX
Subject:Signal Processing, Sound Quality Design

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 124Papers)   /124/7412.pdf

Start a discussion about this paper!