05 juin 2014 ~ 0 Commentaires

Coursera – Music Production Week5 – Demonstrate the delay spectrum with examples

Comb filter :

A comb filter is notches evenly spaced across the spectrum.
When you’are mixing a signal with a very short delayed copy of it, a comb filter start to appear.

In order to do that in the sequencer i use (Ableton Live 9), I’ve made a parallel chain on the track i’d like to comb filter.
On the delay chain (wet), I’have added Voxengo sound delay which is a free VST plugin that allow us to delay by sample or ms the input sound .
( http://www.voxengo.com/product/sounddelay/ )

Let see how it sound in a short video :

Slapback delay :

A slapback delay is used to simulate a space.
The delay time is approximately 90ms with no feedback.

The dry/wet need to stay low in order to have a realistic effect.
It’s preferred to use a slapback delay instead of a reverb because sometimes the reverb will overwhelm the entire spectrum.

This effect is very subtle so please put your headphones to listen to that example :

Synchronized long delay :

This delay is used to create big ambiance reflections, synced in time with your song.

The left output is synced to 1/6 th notes
The right output is synced to 1/8 th notes.

With a different synchronization on the left and right the delay allows us to add stereo on a mono or stereo signal.

Pitch with Delay :

A pitch delay is a very short delay ( ~1 ms to 40ms ) with the feedback all the way up.
When you reduce the delay time, the pitch is going down.

After 40 ms the sound start to be fuzzy:

This experiments with delays allow me to discover new concepts, better under others, the different usage of a delay plugin.
Thanks for reading !