Recording

Delay (1)

The Music Telegraph | Text 2019/01/08 [12:42]
Recording

Delay (1)

The Music Telegraph| 입력 : 2019/01/08 [12:42]

▲ Audio Dealy

© Fountain Computer



 

Delay (1)

 

 

Delay:

- The interval/space between a sound and its repeat or repeats

 

 

*What’s echo?

: A delay that is a discrete separate repeat of a sound

 

 

▲ Delay with instruments

© The Music Telegraph





 

Typical uses of delay:

- When music is "Non-musical" (e.g. apply 7-second radio delay)

- To adjust Live sound arrival time (see below picture)

- To generate latency (e.g. in public address, see below picture)

- For special effect (musical uses)

- When manipulate a musician’s time (performance) (e.g. drum sound)

 

▲ Since d1 > d'1, d2 > d'2, sound delays from the main speakers occur to the audience.

Once the sub speakers are installed and tuned to the audience, you will need to time-align them with the main speakers so that sound coming from the sub speakers arrive at the audience in time with the sound from the main speakers. (To do this, add some delay to the sub speakers)

Otherwise, the difference in arrival time between the mains and sub speakers will create sonic problems.

The reason you need to delay the sub speakers is that the electrical signals from the control room will reach both speakers simutaneously, whereas the sound traveling from the speakers near the stage travels through the atmosphere at the speed of sound, which is hundreds of times slower, resulting in a gap of several milliseconds between sources.

© The Music Telegraph



 

 

 

The effect of delays on a sound:

1) Very short delay

- Rugs up against the original sound and causes phase shift (0.1 ms ~ 10 ms)

 

2) Medium delay

- Sounds like an artificial room or environment

 

 

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