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-rw-r--r--servers/audio/effects/audio_effect_pitch_shift.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/servers/audio/effects/audio_effect_pitch_shift.cpp b/servers/audio/effects/audio_effect_pitch_shift.cpp
index 3c53887931..32223f47f6 100644
--- a/servers/audio/effects/audio_effect_pitch_shift.cpp
+++ b/servers/audio/effects/audio_effect_pitch_shift.cpp
@@ -288,6 +288,14 @@ void SMBPitchShift::smbFft(float *fftBuffer, long fftFrameSize, long sign)
void AudioEffectPitchShiftInstance::process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count) {
float sample_rate = AudioServer::get_singleton()->get_mix_rate();
+ // For pitch_scale 1.0 it's cheaper to just pass samples without processing them.
+ if (Math::is_equal_approx(base->pitch_scale, 1.0f)) {
+ for (int i = 0; i < p_frame_count; i++) {
+ p_dst_frames[i] = p_src_frames[i];
+ }
+ return;
+ }
+
float *in_l = (float *)p_src_frames;
float *in_r = in_l + 1;