Filtering Reverb

Reverb’s great for adding atmosphere and depth to your tracks; however, too much reverb on the lower frequencies quickly makes audio sound muddy. To prevent this, set up the reverb on a return track, then filter out the low frequencies before they can reach the reverb.

Here’s a simple piano line without reverb:

Create a chord progression in Ableton's piano roll editor.

The same piano line, this time sent to a return track with a hall reverb on it:

Set up a medium hall reverb on a return track.

Notice how the lower frequencies sound muddier now, especially at the beginning of the clip. Put a high-pass filter on the return track, before the reverb:

Put a high-pass filter before the reverb on the return track.

Because the filter’s in front of the reverb on the return channel, only the high frequencies are reverberating, and the low frequencies stay “dry.”

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