Fix: Make WASAPI loopback buffer size adaptive to device capabilities

[anshul23102]

Summary

Fixes the WASAPI loopback buffer being hardcoded to a fixed size that's incompatible with high-performance audio devices. The buffer duration is now dynamically determined based on the device's minimum supported period with a 10ms floor.

Changes

• Modified WasapiLoopbackCapture constructor to query device period capabilities via GetDevicePeriod
• Compute buffer duration as Math.Max(minimumPeriod, 10ms) to adapt to hardware capabilities
• Pass computed duration to AudioClient.Initialize instead of fixed 0

Testing

Verified on high-performance audio interfaces that visualization no longer exhibits stuttering artifacts. The buffer now respects device latency constraints while maintaining compatibility across different hardware setups.

Related

Closes #331

[vercel]

@anshul23102 is attempting to deploy a commit to the Dot_NotSam's projects Team on Vercel.

A member of the Team first needs to authorize it.

[anshul23102]

@SamXop123 /assign /claim

I've assigned this issue to myself and claimed it as part of GSSoC 2026. Please apply the gssoc:approved label when ready.

This PR addresses the WASAPI loopback buffer size limitation that was causing audio stuttering on high-performance systems by making the buffer duration adaptive to the device's capabilities.

[coderabbitai]

Important

Review skipped

Auto reviews are limited based on label configuration.

🏷️ Required labels (at least one) (1)

• review

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 6c94a424-6054-4156-9e3f-49152721ce68

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}