BROWSER DSP ANALYZER FOR STREAMED AUDIO

Measure the audio people actually heard from a screen recording.

Stream Analyzer is a browser-based DSP analyzer for singing streams, livestreams and screen-recorded audio. It measures the complete delivered mix without separating vocals and accompaniment, so you can inspect what changed in the audio that actually reached the listener.

Open Stream Analyzer In the app, tap EN at the top right for the English interface.

Loudness & dynamics

Measure Integrated and Short-term LUFS, True Peak, RMS, LRA, Crest Factor, PSR and PLR.

Stereo & frequency

Inspect Stereo Width, Phase Correlation, Mid / Side, L/R balance, ten frequency bands and the average spectrum.

Time-series & instant events

Fine Analysis observes changes at 100 ms resolution. Instant Analysis scans with a 20 ms window and 10 ms step for short peaks, attacks and high-frequency surges.

Use any AI you prefer

Export AI-ready DSP data with analysis instructions, plus JSON and CSV, then paste it into ChatGPT, Gemini, Claude or another AI.

What is Stream Analyzer for?

It is not an automatic “good or bad” audio score. The goal is to help you investigate a listening impression: when something sounded different, what actually changed in the delivered audio?

LUFS · True Peak · LRA · PSR / PLR · Stereo Width · Phase · Spectrum · Spectral Centroid · Bandwidth · Contrast · Flux · Perceptual Presence

Your audio stays on your device

Audio decoding and DSP analysis run locally in the browser. Your audio file and analysis results are not automatically uploaded to a server or sent to an AI service. You choose what to copy and share.

Typical uses

Analyze a singing-stream screen recording from an iPhone or other device
Compare loudness, stereo width and high-frequency energy between song sections
Find short peaks, attacks or high-frequency changes with timestamps
Give structured DSP measurements to an AI for cross-feature interpretation

Vocals and accompaniment are not separated. Measurements describe the completed mix, including the effects of the streaming platform, screen recording and audio encoding path.