Stupid question regarding reverb

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nuketifromorbit
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Stupid question regarding reverb

Post by nuketifromorbit » Thu Jul 02, 2015 6:48 am

Is there any point in utilizing the stereo outs of a reverb processor if only a mono signal is being fed to the input? Not sure if its important or not, but I'm using an alesis Nanoverb.
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Re: Stupid question regarding reverb

Post by Stab Frenzy » Thu Jul 02, 2015 8:30 am

Depends on how the reverb algorithm is configured, but most of the time you'll get a stereo reverb signal even with a mono input signal.

Here are a couple of different ways that reverbs with a stereo input can work:
1. Two inputs are summed to mono and then the mono signal is fed to the reverb
2. Reverb is true stereo, ie left output is mostly left input with some crossover from right input and vice versa. Often these units can be configured to have a mono input which works like the first example.
3. Two inputs are summed to mono, the reverb is mono and then has spacialisation on the output, eg stereo delay/comb filter.

The best way to find out if there's any point is just plug it in and see if you like the sound in stereo!

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Re: Stupid question regarding reverb

Post by meatballfulton » Thu Jul 02, 2015 11:51 am

From SoundonSound review of the Nanoverb, 1996:
In reverb mode, the stereo ins simply pass the dry sound to the output in stereo, and the effects are generated from a mono sum of the two inputs in the time-honoured way. The chorus and flanger settings are, however, true stereo, with independent processing of the left and right channels. Delay is strictly mono, and has a fixed amount of feedback to create gently repeating echoes
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Re: Stupid question regarding reverb

Post by madtheory » Thu Jul 02, 2015 2:02 pm

Just to add to the good points so far: think of it this way. Imagine a singer in a large concert hall. They are a "mono" source. The sound bounces around the concert hall every which way, surrounding you with reflected sound. That is the "stereo" reverb. So it's really cool to take synthesised sounds and position them in a synthesised space, that is modelled on a real one.

Caveat- the above is an analogy. In reality, a singer (or any real life sound source) sends sound out in all directions :)

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Re: Stupid question regarding reverb

Post by nuketifromorbit » Thu Jul 16, 2015 4:56 pm

madtheory wrote:Just to add to the good points so far: think of it this way. Imagine a singer in a large concert hall. They are a "mono" source. The sound bounces around the concert hall every which way, surrounding you with reflected sound. That is the "stereo" reverb. So it's really cool to take synthesised sounds and position them in a synthesised space, that is modelled on a real one.

Caveat- the above is an analogy. In reality, a singer (or any real life sound source) sends sound out in all directions :)
Derp, I should have realized this. Thanks for the info. I can't believe the google searches I've been doing turned up nothing.
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