NADA SFERA / iOS PCM ENGINE

Experimental live MP3 → WebCodecs → PCM AudioWorklet → EQ, spectrogram, stereo meters and WAV recorder. Does not use HTMLAudioElement or MediaElementAudioSourceNode.

Live stream

Cloudflare Worker base URLStation

Ready. This build requires WebCodecs MP3 support and a Worker that permits browser fetch.

Spectrogram

Left −∞

Right −∞

Listening controls

Volume (0–100%) Enable low-pass EQLow-pass frequency: 2000 Hz

Live diagnostics

Received 0 KB

Decoded PCM frames 0

AudioContext —

MP3 decoder —

Errors 0

If the browser lacks WebCodecs MP3 support, the page will report this explicitly. No audio will be falsely reported as analysed.