Using basic-pitch in an iOS application

[adamjuls]

Hi,

I would like to use basic-pitch in an iOS mobile application. It seems that it is possible to convert the model into a tflite. format, but I am stuck trying to change the output into MIDI notes. Can someone help me with suggesting Pretty MIDI alternatives that work well with the basic pitch model for Swift?

[martingasser]

It shouldn't be too hard to port the Python code that converts the model outputs to notes (https://github.com/spotify/basic-pitch/blob/ad9ab8a65d18a1cb06dee25f45855acc4598a10a/basic_pitch/note_creation.py#L46) to Swift, you could even try using a numpy-like library like https://github.com/jjjkkkjjj/Matft.

I did the same thing in C++ using the xtensor library and using onnxruntime for model inference, works great.

[adamjuls]

Thank you for answering my question @martingasser . By any chance is your C++ implementation open source?

[e7mac]

@adamjuls did you end up making this work?