2019-06-20 20:28:00 +00:00
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# Redilysis = Redis + Audio Analysis
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2019-06-20 20:20:46 +00:00
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2020-09-27 19:02:19 +00:00
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Redilysis sends audio analysis to a redis server.
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The idea is to share a single audio analysis to many Visual Jockey filters, in our case for lasers.
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Two modes exist for now, you need to run two processes to get the complete experience!
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### Spectrum Mode
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This is the default mode.
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It performs some frequency analysis (Fast Fourier Transform) to detect "energy" in the human audition bandwidths.
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It will record if there is sound and at which frequencies.
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It can run at sub-second frequency (100ms) with no problem.
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It reports realistic data: spectrum analysis is the easy part.
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### BPM Mode
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This mode is more experimental.
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It attempts to detect beats based on the
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## Keys and contents in Redis
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bpm_time : (milliseconds integer timestamp) last update time
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onset
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bpm
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beats
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spectrum_time
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2019-06-20 20:20:46 +00:00
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2019-06-20 20:28:00 +00:00
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## Installation
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2019-06-20 20:20:46 +00:00
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```python
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2020-09-27 19:02:19 +00:00
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sudo apt install python-pyaudio python3
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2019-06-20 20:20:46 +00:00
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git clone https://git.interhacker.space/tmplab/redilysis.git
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cd redilysis
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pip install -r requirements.txt
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python3 redilysis.py --help
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```
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2019-06-20 20:28:00 +00:00
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## Guide
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2019-06-20 20:20:46 +00:00
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There are two available modes.
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**One is the slow mode with BPM recognition:**
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python3 redilysis.py -m bpm -s 1 -f 44100
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Pushes following keys in redis:
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* onset
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* bpm
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* beats
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**The other is a fast mode with spectrogram analysis**
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python3 redilysis.py -m spectrum -s 0.1 -f 4410
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Pushes following keys in redis:
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* rms
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* spectrum
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* tuning
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