What audio format does the generator produce?

It outputs an uncompressed 24-bit stereo PCM WAV file with exact sample frame counts based on your chosen duration and sample rate.

Are the output dBFS levels equivalent to sound pressure level (dB SPL)?

No, levels represent digital peak targets between −60 and −3 dBFS, not calibrated physical sound pressure levels.

Why are harmonics limited on square, triangle, and sawtooth waves?

Non-sinusoidal waveforms synthesize a maximum of 16 harmonics below 0.45 times the sample rate to prevent digital aliasing.

Can I reproduce the exact same noise signal later?

Yes, using the exact same noise seed value reproduces identical pseudo-random noise sequences across generations.

Do frequency, phase, and sweep settings affect noise or silence?

No, frequency, sweep, and phase controls are completely bypassed when a channel is set to noise or silence.

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Dual-channel Audio Signal Generator

Generate independent left/right waveforms, sweeps, noise or silence as a stereo WAV.

Details

What this tool helps you do

The same seed reproduces noise. Channel phase and level are independent. Lower amplifier and headphone volume before playback; no automatic playback. Levels are peak targets from −60 to −3 dBFS, not calibrated dB SPL. PCM24 WAV uses an exact frame count rounded from duration × sample rate. Periodic frequencies must stay below 0.45 × sample rate. Square, triangle and sawtooth waves use at most 16 harmonics below that limit with conservative peak normalization. Fades may occupy at most half the active signal. Noise and silence ignore frequency, phase and sweep controls. Excitation is a test input, not a measured room impulse response; a separate recording and deconvolution stage is required.

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Dual-channel Audio Signal Generator

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Key facts

Overview

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How it works

Use cases

Examples

1. Stereo Channel Isolation Test

2. Subwoofer Polarity and Phase Alignment

FAQ

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