@@=

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@@=

x @= y

Compound operator for the level operator @@
Also known as relative level operator

Equivalent expression

x = x @ x @ y

Commutative


No


Data Types

x

y

AUD

SCAL

Notes

x @ x @ y literally means the signal x with the level at y dB re. x
In other words, the signal x with the level adjusted by y dB from its own rms.
Therefore, this is also known as an "incremental" level operator.

Examples

Open a .wav file. The RMS level of this audio happens to be -26 dB.

AUX> x=wave("spring")

I want to increase its RMS level by 15 dB.

AUX> x @@= 15

Oops, we have a peak-clipping situation. A 15-dB increase was too much. Let's go down by 5 dB.

AUX> x @@= -5

This looks good!


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