Opus-generated sound, on the record
Each entry ships the prompt, Python synthesis code, waveform, spectrogram, and loudness metrics. Audio here is synthesised — precise and royalty-free for video — but not a stand-in for real instruments, vocals, or a final mix. Your ear still wins.
Chaos → calm
Tension releases into breathable beds, timed to video frames.
Chaos clocks → calm pad
Chaos → calm
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoEnergeticDarkCalmBright
00
tiktok15s120bpm
Notification storm → breath
Chaos → calm
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Mid tempoEnergeticDarkCalm
00
podcast10s100bpm
Scroll frenzy → focus hum
Chaos → calm
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoUpbeatEnergeticCalmHappy
00
app8s110bpm
Storm cuts to sunrise
Chaos → calm
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Mid tempoEnergeticDarkCalmSad
00
documentary20s80bpm
Traffic glitch → warm strings
Chaos → calm
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Mid tempoEnergeticDarkSadCalm
00
youtube30s90bpm
Ad beds by length
Upbeat and narrative beds at common ad durations.
15s upbeat retail pulse
Ad beds by length
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoUpbeatHappyEnergeticBright
00
ad15s128bpm
30s lifestyle stroll
Ad beds by length
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Mid tempoCalmHappyBright
00
ad30s105bpm
60s story arc bed
Ad beds by length
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Slow tempoSlowSadCalmDark
00
ad60s92bpm
6s bumper sting
Ad beds by length
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoUpbeatEnergeticBright
00
bumper6s140bpm
Drops & transitions
Impacts, whooshes, and cut helpers.
Heavy impact drop
Drops & transitions
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoEnergeticDark
00
drop3s
Whoosh into hit
Drops & transitions
Made with Local numpy synth · Agent target: Claude Opus 4 (`claude-opus-4-20250514`)Fast tempoEnergeticBright
00
transition2s
Risers
Builds that land on a frame.
UI & app sounds
Short feedback tones for product surfaces.
Logo stings
Brand moments in a few seconds.
Ambient beds
Background textures and loop-friendly pads.