Sonic Error Scratch

A hidden cause of the is sample rate mismatch. Scratch 3.0 works best with 16-bit, 44.1kHz WAV files . If you mix a 22kHz MP3 with a 48kHz WAV, the browser’s audio resampler can stutter.

| Parameter | Typical value / description | |-----------|-----------------------------| | Duration | 10 ms to 500 ms (can loop infinitely) | | Frequency content | Wideband, often 2 kHz – 18 kHz peak | | Amplitude | Often near 0 dBFS (clipping possible) | | Waveform shape | Discontinuous jumps, square-like fragments | | Perceptual quality | Harsh, metallic, “scratchy,” irritating | sonic error scratch