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| author |  Liam | 2023-12-16 12:54:40 -0500 |
|---|---|---|
| committer | Liam | 2023-12-16 13:05:55 -0500 |
| commit | 6851e93296969e1f990ebc12e2a46026dc34ccce (patch) | |
| tree | b782dec695de2baab62b6e1f5a1acb2f3cb88fcf /src/audio_core/sink | |
| parent | Have GetActiveChannelCount return the system channels instead of host device ... (diff) | |
| download | yuzu-6851e93296969e1f990ebc12e2a46026dc34ccce.tar.gz yuzu-6851e93296969e1f990ebc12e2a46026dc34ccce.tar.xz yuzu-6851e93296969e1f990ebc12e2a46026dc34ccce.zip | |
audio: skip coefficient normalization for downmix
Diffstat (limited to 'src/audio_core/sink')
| -rw-r--r-- | src/audio_core/sink/sink_stream.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/src/audio_core/sink/sink_stream.cpp b/src/audio_core/sink/sink_stream.cpp index 97866f417..c047b0668 100644 --- a/src/audio_core/sink/sink_stream.cpp +++ b/src/audio_core/sink/sink_stream.cpp | |||
| @@ -42,11 +42,9 @@ void SinkStream::AppendBuffer(SinkBuffer& buffer, std::span<s16> samples) { | |||
| 42 | // We're given 6 channels, but our device only outputs 2, so downmix. | 42 | // We're given 6 channels, but our device only outputs 2, so downmix. |
| 43 | // Front = 1.0 | 43 | // Front = 1.0 |
| 44 | // Center = 0.596 | 44 | // Center = 0.596 |
| 45 | // Back = 0.707 | ||
| 46 | // LFE = 0.354 | 45 | // LFE = 0.354 |
| 47 | // 1.0 + 0.596 + 0.707 + 0.354 = 2.657, 1/2.657 = 0.37636f downscale coefficient | 46 | // Back = 0.707 |
| 48 | static constexpr std::array<f32, 4> down_mix_coeff{0.37636f, 0.22431056f, 0.13323144f, | 47 | static constexpr std::array<f32, 4> down_mix_coeff{1.0, 0.596f, 0.354f, 0.707f}; |
| 49 | 0.26608652f}; | ||
| 50 | 48 | ||
| 51 | for (u32 read_index = 0, write_index = 0; read_index < samples.size(); | 49 | for (u32 read_index = 0, write_index = 0; read_index < samples.size(); |
| 52 | read_index += system_channels, write_index += device_channels) { | 50 | read_index += system_channels, write_index += device_channels) { |