volumeGainDb property

double? volumeGainDb

Volume gain (in dB) of the normal native volume supported by the specific voice, in the range -96.0, 16.0.

If unset, or set to a value of 0.0 (dB), will play at normal native signal amplitude.

A value of -6.0 (dB) will play at approximately half the amplitude of the normal native signal amplitude.

A value of +6.0 (dB) will play at approximately twice the amplitude of the normal native signal amplitude.

We strongly recommend not to exceed +10 (dB) as there's usually no effective increase in loudness for any value greater than that.

Implementation

final double? volumeGainDb;