Digital Morphophone Environment

Digital Morphophone Environment (DME) is a Max application that emulates the historical morphophone, a complex magnetophonic tape-loop delay device developed in the 1950s at GRM (Groupe de Recherches Musicales, Paris).

The project is under active development.

Requirements

• Cycling '74 Max to open and run the project.
• A supported ipoke~ external for your operating system, bundled in maxmsp/DigitalMorphophoneEnvironment/externals.
  • Windows support is provided through the included ipoke~.mxe and ipoke~.mxe64 binaries.
  • macOS support is currently provided through the included ipoke~.mxo bundle for Intel processors only.

Quick start

1. Open maxmsp/DigitalMorphophoneEnvironment/DigitalMorphophoneEnvironment.maxproj in Max.
2. Select audio driver and sample rate frequency.
3. Turn DSP on.
4. In the input / output signals section, choose an input source.
5. Arm recording to write into the buffer, then start the motor.
6. Set playheads delay values, levels and filter settings, then adjust dry/wet and input/output levels.
7. Try features such as flutter, saturation, and tape noise to explore the full behavior.

Externals

The project uses:

• ipoke~ by Pierre Alexandre Tremblay (2005-2018)
• tape/tube warmth GenExpr function by stkr (Feb. 2012)

External resources are available in maxmsp/DigitalMorphophoneEnvironment/other:

• ipoke.Windows.zip
• ipoke.MacOS.zip
• 579066331-stkr.waveshaping.zip

Known issues

1. Buffer import/export does not currently account for oversampling in poly instances.
2. In specific configurations, first/last read pointers can overlap the write pointer and produce glitches.

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.

Third-party licenses

This project uses ipoke~ by Pierre Alexandre Tremblay, licensed under the BSD 3-Clause License.