- Noise as Irregular Vibrations
- Noise as Redundant Information
- Noise as Undesirable and Annoying
LEGO Kladno
- Packing LEGO for distribution
- Employees are working in a noisy environment without a hearing protection
- Noise level < 80 dB (Czech legislation for mandatory hearing protection)
- The company placed speakers playing a commercial radio station
- Luigi Russolo: The Art of Noises 1913 - Futurist manifesto
- Noise as a part of the music
- Iannis Xenakis
- Using diagrams and physical principles to describe what instruments have to play
- Development of the confined system where indeterministic music is happening
✅ Factory fields recording
🟩 Sound analysis system
🟩 Sound generation system
🟩 Offline study -> sound evaluation
🟩 Live online systemin the LEGO factory\
- Twelve different microphone placements
- Posts of the workers
- Strong rhythmic content
- Some machines create distinguishable pitch (e. g. motor ~315 Hz)
- Detecting the loudest fundamental frequency
- Detecting overtones series
- Testing Faust language and Essentia.js framework for FFT
- Combination of filters and noise gate
- Leaving the strongest beat
- Detecting BPM
- Using harmonic series
- Emphasise existing fundamental frequency
- Use subharmonic frequency
- Call-and-response - from calculated BPM
- Place underlining rhythm
- Use a music information retrieval (MIR) system to compare it with ambient music
- Using genetic algorithms to improve metrics
- 80 dB threshold
‼️ - Users evaluation using Amazon Mechanical Turk
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Proposal of the system for noise sonification to reduce noise annoyance
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Factory application in LEGO Kladno factory
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Possible application in public places - e. g., subway station escalators