bug(audio): no audio in Safari / WKWebView — MediaElementSource breaks native output path #38

Summary

Audio is completely silent in the Tauri desktop app (WKWebView/macOS). Playback works in Chrome but not Safari.

Root cause

attachAnalysers() was called during the canplay event, which called createMediaElementSource() on each stem's <audio> element. This permanently disconnects the element from Safari's native audio output and routes it through the Web Audio graph. WKWebView does not reliably pass audio through a MediaElementSource → GainNode → destination chain, resulting in silence.

Additionally, applyMix() was setting audioEl.volume (the native path), which has no effect once the element has been routed through Web Audio.

Fix

• Removed attachAnalysers() import and call from player.js — VU meters use pre-computed envelope data, not live Web Audio analysis
• Reverted applyMix() to use audioEl.volume directly for HTMLMediaElement tracks (capped at 1.0 as per spec)

Affected platform

macOS (Tauri / WKWebView)

Release

0.5.0-alpha.1