electribe

Electribe ESX file format toolkit for Node.js

Please note that this is still very much a work in progress, so undocumented behavior and bugs should be expected.

Install

npm install electribe

Features and limitations

• Currently only supports the ESX file format
• Supports parsing and editing of all known attributes including pattern and sequence data
• Sample data can be updated with some limitations:
  • numMonoSamples, numStereoSamples and currentSampleOffset need to be updated manually
  • when deleting samples the sample header info must be reset manually
  • when re-saving an existing ESX file's sampledata section the sample locations are not guaranteed to remain the same

Usage

var electribe = require('electribe');
var ESX = electribe.esx1;
 
// ... Obtain a Buffer object from reading a file ...
var parsedObject = ESX.parse(buffer);
// ... Change values in parsedObject ...
var esxData = ESX.write(parsedObject, { blocksize: 1024 * 1024 * 2 });
// ... Write esxData to a file ...

Credits

• Insight into the data layout was mostly gained from open-electribe-editor by @skratchdot
• The rest was reverse engineered from ESX1midiimp.txt document from korg.de