ZONIC / Professional tools

Sound Engineering Studio.

Inspect recordings, analyse frequency content and stereo balance, generate test signals and explore room acoustics — directly in your browser.

Local audio processingNo account requiredStudio V1

01 / Audio source

Choose a recording or live microphone

Ready — select an audio file or microphone

Files are decoded locally and are not uploaded. Microphone analysis uses uncalibrated digital levels (dBFS). Playback uses your selected output device; reduce volume before testing.

02 / Waveform

No audio loaded

Overview of the full recording, or a live time-domain trace when using the microphone.

Signal measurements

Digital levels

Peak—

RMS—

Crest factor—

Sample rate—

Peak and RMS are in dBFS. Crest factor is peak minus RMS. These are not LUFS or calibrated SPL readings.

03 / Frequency spectrum

Live FFT • logarithmic axis

FFT resolution

The graph shows relative frequency magnitudes from the browser audio analyser, not calibrated spectral power.

04 / Stereo analysis

File measurements

Channel balance—

Phase correlation—

Channels—

Load a stereo recording to inspect left/right balance and phase correlation.

05 / Test signal generator

Use low volume

Wave Frequency HzLevel %

Pure tones can be uncomfortable even at modest volume. Start with your speakers low. Never use this as a calibrated hearing test.

06 / Room mode calculator

Rectangular rooms • theoretical

Length (m)Width (m)Height (m)

Enter your room dimensions to estimate the lowest axial resonances.

Uses 343 m/s speed of sound. Actual room response also depends on boundaries, furnishings and speaker/listener positions.

Coming to ZONIC Studio

Development roadmap

PlannedLUFS & true peak

Standards-based loudness analysis and oversampled peaks

PlannedRoom impulse response

Sweep capture, RT60 and frequency response

PlannedStereo vectorscope

Phase display and mid/side monitoring

PlannedReference comparison

Compare recordings and export reports