Success chime

Make a 0.5 s UI success sound effect for video at 30 fps.
Output: one WAV, 48 kHz / 16-bit / stereo, exactly 24000 samples.
Python + numpy/scipy only. Synthesise everything (no samples, no downloads). Fixed random seed.
Sound: two-tone pleasant chime, fast decay, no harsh highs; centre at frame 0.
Master: −14 LUFS integrated, true peak ≤ −1 dBTP.
Verify length, loudness, peak with ffmpeg ebur128; render spectrogram; fix until checks pass.

Metrics

Integrated LUFS

-30 LUFS

True peak

-11.9 dBTP

Length

0.5s · 24,000 samples @ 48000 Hz

Target master

-14 LUFS · peak ≤ -1 dBTP

Checks

Passed (runner)

Spectrogram

Generated code

Loading…