16 lines
443 B
Go
16 lines
443 B
Go
package replaygain
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import (
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"git.gammaspectra.live/S.O.N.G/Kirika/audio/filter"
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"math"
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)
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//NewReplayGainFilter Creates a VolumeFilter applying calculated ReplayGain values, pre amplifying by preAmp. Values are in dB
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func NewReplayGainFilter(gain, peak, preAmp float64) filter.VolumeFilter {
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volume := math.Pow(10, (gain+preAmp)/20)
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//prevent clipping
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volume = math.Min(volume, 1/peak)
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return filter.NewVolumeFilter(float32(volume))
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}
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