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UE-18996 popping sound after flying through gates

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- Adding clamps to volume output for iOS volume to avoid clipping.

[CL 2633104 by Aaron McLeran in Main branch]
This commit is contained in:
Aaron McLeran
2015-07-24 19:46:20 -04:00
committed by Aaron.McLeran@epicgames.com
parent 33faf00462
commit 41be88d27a
1 changed files with 4 additions and 2 deletions
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6
Engine/Source/Runtime/IOS/IOSAudio/Private/IOSAudioSource.cpp
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@@ -257,10 +257,12 @@ void FIOSAudioSoundSource::Update(void)
}
// Apply global multiplier to disable sound when not the foreground app
Volume = FMath::Clamp(Volume, 0.0f, MAX_VOLUME) * FApp::GetVolumeMultiplier() * AudioDevice->PlatformAudioHeadroom;
Volume *= FApp::GetVolumeMultiplier();
Volume *= AudioDevice->PlatformAudioHeadroom;
Volume = FMath::Clamp(Volume, 0.0f, 1.0f);
// Convert to dB
const AudioUnitParameterValue Gain = FMath::Clamp<float>(20.0f * log10(Volume), -100, 20.0f);
const AudioUnitParameterValue Gain = FMath::Clamp<float>(20.0f * log10(Volume), -100, 0.0f);
const AudioUnitParameterValue Pitch = FMath::Clamp<float>(WaveInstance->Pitch, MIN_PITCH, MAX_PITCH);
OSStatus Status = noErr;