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sim1222 2023-07-26 22:36:08 +09:00
parent 7995cdc5c5
commit c31cb93ec6
1 changed files with 5 additions and 5 deletions
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10
Elementary/Audio/VolumeAdjustedWaveStream.cs
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@ -28,12 +28,12 @@ public class VolumeAdjustedWaveStream : WaveStream
var read = _waveStream.Read(buffer, offset, count); var read = _waveStream.Read(buffer, offset, count);
try try
{ {
for (var i = 0; i < read; i += 2) for (var i = 0; i < read; i += 2) // 2 bytes per sample
{ {
var sample = (short) ((buffer[offset + i + 1] << 8) | buffer[offset + i]); var sample = (short) ((buffer[offset + i + 1] << 8) | buffer[offset + i]); // convert two bytes to one short (little endian)
sample = (short) (sample * _volume); sample = (short) (sample * _volume); // <- anything between 0.0 and 1.0
buffer[offset + i] = (byte) (sample & 0xFF); buffer[offset + i] = (byte) (sample & 0xFF); // split the short into two bytes
buffer[offset + i + 1] = (byte) (sample >> 8); buffer[offset + i + 1] = (byte) (sample >> 8); // see above
} }
} }
catch (Exception e) catch (Exception e)