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audio: Improve delay on browsers (#299)

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This commit is contained in:
Hajime Hoshi 2017-01-17 01:14:09 +09:00
parent 6437bb28da
commit 6ee4b46dbe
1 changed files with 2 additions and 3 deletions
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5
audio/internal/driver/driver_js.go
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@ -96,9 +96,8 @@ func (p *Player) Proceed(data []byte) error {
if p.positionInSamples < c { if p.positionInSamples < c {
p.positionInSamples = c p.positionInSamples = c
} }
// Looks like low sample rate (e.g. 22050) requires a quite long buffer (#205). // Heuristic data size which doesn't cause too much noise and too much delay (#299)
// 4096 is not perfect but it reduce noise to some extent. dataSize := int(float64(p.sampleRate)/13.5) / 4 * 4
const dataSize = 4096
for dataSize <= len(p.bufferedData) { for dataSize <= len(p.bufferedData) {
data := p.bufferedData[:dataSize] data := p.bufferedData[:dataSize]
size := len(data) / p.bytesPerSample / p.channelNum size := len(data) / p.bytesPerSample / p.channelNum