Glitching / popping spatialized audio when spinning listener

Hi,

When playing spatialized sound effects and rotating the camera (listener) I end up getting some crackling / popping / glitching effects.

It's much more noticeable when using headphones.

Here is a video showing the issue. Notice that when I start shaking the camera around there is some audible glitching and popping in the knocking sound effect that is being played. https://github.com/user-attachments/assets/c4f05cdf-3dbc-449b-baa8-1baec43a0c16

I am using miniaudio-0.11.25.

The compiler toolchain is MSVC 2022. PC is running Microsoft Windows 10 Home - 10.0.19045 Build 19045.

I have tried the following without success.

• Using MA_SOUND_FLAG_NO_PITCH
• Disabling doppler effect using ma_sound_set_doppler_factor(&sound, 0.0f);
• Changing the config.gainSmoothTimeInMilliseconds = 100, (this does have some limited success, but does not entirely remove the glitching)
• Smoothing out the listener direction before passing it into ma_engine_listener_set_direction
• Using v0.11.22 - 2025-02-24
• Using the dev branch (commit #dc3b628)
• Using both mono and stereo .wav files (sample rate 48000)
• Using .ogg vorbis files

I update the listener by just calling ma_engine_listener_set_position + ma_engine_listener_set_direction once per frame on the main thread at 60Hz.

I am unsure if I am doing something wrong in code, or have a bad asset or have found an actual bug.

I have made a minimal repro case here, which should just load up miniaudio, play a .wav file and rotate the listener on the spot to showcase the issue. Miniaudio_GlitchPop_ReproCase.zip

Let me know if there is any other useful information I can provide.

Here are the ma debug logs from the repro case if this is a device issue, in-case they are valuable. Although I have tested the repro case on a different machine and still hear the glitching issue. DEBUG: Loading library: user32.dll DEBUG: Loading symbol: GetForegroundWindow DEBUG: Loading symbol: GetDesktopWindow DEBUG: Loading library: advapi32.dll DEBUG: Loading symbol: RegOpenKeyExA DEBUG: Loading symbol: RegCloseKey DEBUG: Loading symbol: RegQueryValueExA DEBUG: Loading library: ole32.dll DEBUG: Loading symbol: CoInitialize DEBUG: Loading symbol: CoInitializeEx DEBUG: Loading symbol: CoUninitialize DEBUG: Loading symbol: CoCreateInstance DEBUG: Loading symbol: CoTaskMemFree DEBUG: Loading symbol: PropVariantClear DEBUG: Loading symbol: StringFromGUID2 DEBUG: Attempting to initialize WASAPI backend... DEBUG: Loading library: kernel32.dll DEBUG: Loading symbol: VerifyVersionInfoW DEBUG: Loading symbol: VerSetConditionMask DEBUG: Loading library: avrt.dll DEBUG: Loading symbol: AvSetMmThreadCharacteristicsA DEBUG: Loading symbol: AvRevertMmThreadCharacteristics DEBUG: System Architecture: DEBUG: Endian: LE DEBUG: SSE2: YES DEBUG: AVX2: YES DEBUG: NEON: NO DEBUG: [WASAPI] Trying IAudioClient3_InitializeSharedAudioStream(actualPeriodInFrames=480) DEBUG: defaultPeriodInFrames=480 DEBUG: fundamentalPeriodInFrames=480 DEBUG: minPeriodInFrames=480 DEBUG: maxPeriodInFrames=480 DEBUG: [WASAPI] Using IAudioClient3 DEBUG: periodSizeInFramesOut=480 INFO: [WASAPI] INFO: Speakers (Realtek(R) Audio) (Playback) INFO: Format: 32-bit IEEE Floating Point -> 32-bit IEEE Floating Point INFO: Channels: 2 -> 2 INFO: Sample Rate: 48000 -> 48000 INFO: Buffer Size: 480*3 (1440) INFO: Conversion: INFO: Pre Format Conversion: NO INFO: Post Format Conversion: NO INFO: Channel Routing: NO INFO: Resampling: NO INFO: Passthrough: YES INFO: Channel Map In: {CHANNEL_FRONT_LEFT CHANNEL_FRONT_RIGHT} INFO: Channel Map Out: {CHANNEL_FRONT_LEFT CHANNEL_FRONT_RIGHT},