Underbridge for OP-Z

Multitrack exporter

Description

Exports patterns and projects individual audio tracks to seperate folders for use in your DAW.
Python cross plattform with single file binary for x86 linux Windows and Mac.

Using Packaged single file Binarys (The easy way)

Executables reside in the folder /dist/ or in the release tab.
on Windows underbridge.exe
On Linux: ./underbridge
on Mac Open terminal and change directory to where the underbridge_mac file is located and execute: chmod 755 underbridge_mac ./underbridge_mac or open underbridge_mac

Underbridge_alt was packaged on a different system. Might help if you run into problems. (Outdated)

Installation (Less easy way)

Windows

Install Python 3.9 if not already, 3.10 seems to cause problems.
install mido : pip install mido
install rt-midi: pip isntall rt-midi
install pipwin: pip install pipwin
install pyaudio pipwin install pyaudio

**- Activate OP-Z device input in sound settings of windows and make it default (Should detect automatically just to be sure. ** **- Close all other Applications that might use any audio source like your Browser etc **

run python underbridge.py

Mac Install - ( tested on Mac OS Monterey 12.3 )

install portaudio: brew install portaudio install mido: pip install mido install tk: brew install python-tk install rt-midi: pip install python-rtmidi install pyaudio: pip install pyaudio

Set OP-Z device as input in sound of system preferences

open terminal and type: python3 underbridge.py to start

Ubuntu 20.10 LTS

sudo apt install portaudio19-dev
sudo apt install python3-tk
pip install python-rtmidi
pip install pyaudio

python3 underbridge.py to start

Steps

connect OP-Z via USB
Run underbridge

Single Pattern Mode

Select Pattern you want to export
Enter name for the project. This is used for the folder structure
Get BPM from led code or Smartphone app.
Enter BPM and longest Bar of you track (1-4)
Optionally enter additional seconds at the end of the recording to capture reverb tails etc.
Select pattern mode
Select directory you want to record the waves to
Click record and wait until finished.

Project mode

Select Porject and first Pattern you want to export on OP-Z.
Enter name for the project. This is used for the folder structure
Get BPM from led code or Smartphone app.
Enter BPM
Enter longest Bar of you track (1-4)
Enter the Nr. of Patterns your song consists of.
Optionally enter additional seconds at the end of the recording to capture reverb tails etc.
Select project mode
Select directory you want to record the waves to
Click record and wait until finished.

Troubleshooting

When the recorded audio contains buzzing or other artifacts try disabling the USB charging with "display" and "bottom right key" to disable.
If the playback of the OP-Z starts correctly but no tracks are muted check that MIDI IN in the OP-Z app or via combo is enabled.

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