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Catherine Trinh
1) Date of Session: Jan 22nd, 2014
2) Time in: 1:00 PM
3) Time out: 3:00 PM
4) Lesson #: 14
Lesson 14 is about Reverbs, Echo and Delay. So what is Reverb exactly? Reverb is the way sound waves reflect off various surfaces before reaching the listener's ears. In our workbook there's an example of a person talk to another person in a small room, I always thought that sound just went directly to the other person but learned that the sound waves also goes into different directions and bounces off walls while on it's way to reaching the other person. The sound waves can bounce back and forth many times before they die out.
Two things happen when sound waves reflect off walls, They take longer to reach the listener and they lose energy with every bounce so the sound gets quieter than when it first set out to its destination. Listeners hear the initial sound of the source followed by the reflected waves. These reflections are a series of very fast echoes, although the term "echo" usually means a distinct/separate delayed sound. Echoes in reverbs are blended together so that the listener sees reverb as a single effect.The reflected waves scatter and are absorbed very quickly in most rooms. People all subconsciously know the difference between "inside sound" and "outside sound" because when outside there are of course no walls therefore no reverb unless you're close to a reflective surface.
When adding reverb in music for a more natural sound, time based devices are added. They're known as digital reverbs that one adds to the mix to produce the natural sound one is looking for. They are adjustable and really fun to operate. Reverb is probably my favorite part when mixing a song so far. I love hearing all the different sounds it can give a song. Some sources of reverbs are: acoustic (natural), chamber (rooms), plate, spring, reverberator, digital reverberator.
Echo and Delay:
Delay is a simple concept where the original audio signal is followed closely by a delayed repeat just like an echo. The time of delay can be as short as a few milliseconds or as long as several seconds. The effect of delays can include a single echo or multiple echoes.
