TEF effects – Synth, Repeater, Convolution Delay

We have finally finished the TEF effect section of the projectt. This involves three “custom” effects which we have created by havnig a look at what you can do with fourier transformed signals. The problem was trying to decide on effects which where both priginal to anything we have seen done in matlab before and also those which would be useful.

Synth – in order to create the synth effect we create a low pass filter of values below a maximum in the fourier transform, the user is given the option to choose this maximum. This creates a synth type efffect and sounds cool with undistorted single note samples.

Repeater – first of all the signal is sampled and thus replicated, next step was to set various elements in the fourier transform to different volumes which seperates the sample from the original in playback and gives a replicated effect whereby the sample plays “under” the original.

Convolution Delay – This involves letting the user specify how many spikes there will be in the comb, these spikes are then placed at random intervals in the comb vector and convolved with the original to produce a kind of random delay effect.

The effects section is now complete and we can start focusing on some other modules.

~ by conormullen on March 3, 2008.