Tape-stop transition
Drops & transitions · 2026-10-06
Related guide: Glitch, Tape-Stop and Countdown Sound Effects: How They Work and How to Make Them
Claude Opus 5.5
Prompt
A 1.5-second D minor funk transition at 120 BPM. It opens on frame 0 with a tight kick, a bright clavinet-style Dm7 stab (struck-string additive tone with a pickup comb, slight stiffness and a wah-ish mid peak), a round synth bass on D2 and an accented hat. A busy sixteenth-note pocket follows: ghost clav chucks, an octave bass pop, ghost snare, a cracking backbeat on beat 2 and a G9 stab on its "and". From 0.55 s the whole groove (drums, reverb and all) tape-stops: one variable-rate read head decelerates, so speed and pitch glide down together into a low mechanical groan. It lands dead silent exactly on frame 30 (1.0 s) through a 1 ms fade ending on the cue sample. About 150 ms later a tiny, soft mono thump (the reel settling) blooms and dies away. Below 120 Hz there is only the mono kick, bass and thump.
Metrics
- Integrated LUFS
- -13.8 LUFS
- True peak
- -7 dBTP
- Length
- 1.5s · 72,000 samples @ 48000 Hz
- Target master
- -14 LUFS · peak ≤ -1 dBTP
- Checks
- Passed
Spectrogram
Generated code
Loading…Timing & cues
120 BPM · 30 fps · seed 1230305
- Frame 0: groove
- Frame 30: stop
D minor funk pocket (clav-style additive struck-string stabs with pickup comb and inharmonic stretch, round synth bass, tight kick, ghost snares, 16th hats) rendered as a 'tape' and read back by one variable-rate head: speed 1.0 until 0.55 s, then a concave deceleration to 10% (-40 semitones) on frame 30, read from a 4x-oversampled source so the pitch glide is alias-free. The outgoing bus is side-high-passed at 250 Hz and DC-guarded first, then a 1 ms raised-cosine fade ends exactly on the cue sample; digital silence until a tiny mono 62 Hz reel thump at 1.15 s. A Hann-shaped sub-1 Hz offset removes the DC left by truncating the high-pass settling. No flags.
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