Tuesday, March 31st, 2009
With reverb, you can make or break a space
Imagine listening to a recording and half a minute into a song you notice something wrong. You can’t quite put your finger on it; you just can’t feel the instruments, you feel attacked by the singer’s in-your-face voice and everything is just too…..dry. It’s like listening to music in a vacuum. There’s no space.
Although listening to a reverb-free record is nearly impossible, (unless it was recorded entirely in an anechoic chamber), you can still have a really dry record if you don’t put any reverb on anything.
Reverb can be perceived as a glue that holds everything together, yet retains enough space to maintain a perceived distance between each element. It makes a three dimensional picture of the soundscape you just recorded, causing you to feel that you can hear the room accompanied by the instrument.
Different modes of reverb
There are quite a few different types of reverb. You can call them reverb modes, or room types. Some of the more common types include; Room, Hall, Chamber, Spring, Plate, and Convolution. In our age, we have access to digital reverb simulators which can simulate, quite realistically, all of these programmed room or reverb modes. Let’s take a look.
- Room reverb – These types simulate the sound of having recorded something in a room. Whether the parameters are for a big room or a drum room, they usually simulate smaller spaces than their Hall/Chamber counterparts.
- Hall reverb – Rich, warm and big are the first adjectives that come to mind when thinking about Hall reverb. These types simulate halls, whether they be medium halls, concert halls, or whatever lush parameter name the hall has.
- Plate reverb – Plate reverb is a personal favorite of mine for vocals. Live, I propably use it too much, but I just think it does wonder to the vocals, without taking it too far or drowning it in reverb. Plate reverb is basically sound being sent to a metal plate which vibrates back and forth. These vibrations are picked up and transformed into an audio signal. Plate reverbs are very bright but clean, so they suit vocals especially.
- Spring reverb – I was once asked what reverb was when I was fooling around with my guitar. I cranked up the reverb on my small practice amp and then kicked it. “That boing you heard?” “Yeah?” “That’s reverb”. Although true is some form, that boing wasn’t all reverb, it was spring reverb. The reverb found on guitar amps so most usually used for guitar.
- Chamber reverb – In the old days, studios had so called echo chambers. In these chambers they had speakers that they routed the audio signal that they wanted to put reverb on. The signal, be it guitar, voice or whatever was produced through the speakers into the chamber and picked up by a microphone that was positioned to capture the reverb in said chambers.
- Convolution reverb – This is the type of reverb that allows digital emulation of real three-dimensional spaces. If you’re familiar with the famous reverb plugin Altiverb, then you have heard convolution reverb. In order to capture a room’s reverb characteristics, an “impulse” sound is played in a real space, such as an opera house or a cathedral, then recorded into a computer. The impulse sound allows the computer to simulate that space just from the impulse sound. This is possibly the best kind of digital reverb around
So now you know a little bit about the reverb modes you most commonly work with. Below I have brainstormed a few fun tips you can use whenever you like to spice things up.