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61 lines
1.6 KiB
Markdown
61 lines
1.6 KiB
Markdown
2 years ago
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---
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categories:
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- Python
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- Sound
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cover: seq.jpg
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cover_alt: graphic made with spreadsheet
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date: 26/12/2022
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description: Open ended CSV sequencer
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git: https://git.xpub.nl/kamo/seq
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slug: seq
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title: seq
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---
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An open ended CSV sequencer. It only takes care of looping through a .csv file, row by row, and send the contents of each one to a client with OSC.
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In this way all the command logic is up to the user, and the sequencer can be prototyped on the go.
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There is no restriction in the number or lenght of columns.
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Tested with a VVVV client with different modes:
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- frequency
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`440`
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enter the frequency for a basic oscillator
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- frequency + waveform
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`s400`, `t600`, `n700`
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first character is the waveform (sine, tri, noise, pulse), the rest is the frequency
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- midi
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`m064`, `m148`
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m stands for midi, first digit is the midi channel, the rest is the note
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## Install
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To install create a virtual environemnt and then install the requirements from the `requirements.txt` file.
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`python3 -m venv venv`
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`source venv/bin/activate`
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`pip install -r requirements.txt`
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## Run
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To run the sequencer run
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`python seq.py`
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It will read the contents of the `seq.csv` file and forward them on a OSC client running on the local ip `127.0.0.1`, on the port `1337`
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Note that you can edit live the `seq.csv` file with a software like LibreOffice Calc, or directly as a text file.
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ATM the main loop of the sequencer reload the file at every step. Not really efficient! But for small files should not be a problem.
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## Next steps
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- Use env files to set ports and osc address
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- bpm as command line arguments
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