audio: Add comment about #146

internal/audio/audio_js.go

@@ -20,6 +20,12 @@ import (
 	"github.com/gopherjs/gopherjs/js"
 )
 
+// Known issue (#146): We can't change the sample rate of a AudioContext.
+// This means that if AudioContext's sample rate is 48000,
+// there is no way to play 44.1Hz PCM properly without resampling.
+// Let's wait for the new spec and browser implementation:
+// https://github.com/WebAudio/web-audio-api/issues/300
+
 // Keep this so as not to be destroyed by GC.
 var (
 	nodes   = []*js.Object{}