Re: [w3ctag/design-reviews] Early TAG review request for Playout Statistics API for WebAudio (Issue #939)

Hi @martinthomson and @matatk ! Sorry for the slow reply. We have updated the explainer with [the main points about the side channel](https://github.com/WICG/web_audio_playout?tab=readme-ov-file#security-and-privacy-considerations) and a [comparison to the RenderCapacity API](https://github.com/WICG/web_audio_playout?tab=readme-ov-file#comparison-to-webaudio-rendercapacity-api), as requested.

@matatk thank you for the pointer to the Compute Pressure API discussion. We looked at the Compute Pressure mitigations, and we think that the [Rate Limitation mitigation](https://www.w3.org/TR/compute-pressure/#rate-limiting-change-notifications) could be applied here, which would mitigate the risk that the (preexisting) glitch based side channel is made worse. 

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