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cacophony

Sound classification from the command line, using macOS SoundAnalysis. Classify audio files or listen to the microphone in real time. Recognizes 303 sound categories — dogs barking, glass breaking, sirens, musical instruments, speech, rain. All on-device, no API keys, no network calls.

$ cacophony classify recording.wav
0.9792  speech
0.5980  sigh
0.5331  mosquito_buzz
0.4602  insect
0.4339  click

$ cacophony listen
Listening for 5.0s...
0.8234  dog_bark
0.6012  animal
0.5891  domestic_animal

Works with audio files (classify) or live mic input (listen). A categories command lists all 303 recognized sounds:

$ cacophony categories | grep drum
drum
drum_kit
snare_drum
bass_drum
timpani

--json and --top=N work on all commands. listen also takes --duration=MS and --threshold=N.

Uses Apple’s SoundAnalysis and AVFoundation frameworks via Objective-C runtime bindings — no Swift, no Objective-C source files.

brew install georgemandis/tap/cacophony

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