Hi everyone,
Before upgrading to UE 5.7, I was using the MetaSound Delay (Time) node to emulate real-world sound propagation: as the sound source moves away from the listener, I increase the delay time. This naturally creates both distance latency and a Doppler-like pitch shift, since the waveform is effectively stretched.
Since moving to UE 5.7, the behavior seems different. Instead of smoothly stretching the waveform (which produced a continuous pitch shift), it now sounds like the node is jumping between samples to avoid pitch changes. The result feels stepped and noticeably less smooth.
I took a video: https://www.youtube.com/watch?v=TUL2S-VSK8c
So I’m wondering:
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Has the internal algorithm of the Delay (Time) node changed in 5.7?
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Is there another recommended way to achieve physically plausible distance-based delay with continuous pitch variation?
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Are there any plans to expose different delay algorithms in the future (for example, offering a choice between interpolation modes, similar to how some DAWs like Ableton’s native delay let you choose behavior)?
Thanks in advance for your insights 