A DSP Toolkit
Software for HiFiBerry boards equipped with DSP. This package can be used to read/write data to HiFiBerry DSP boards using the Beocreate TCP server.
Before installing the dsptoolkit, you need to have a working Python 3 installation (>=3.5) and a working pip. You also need to enable SPI as dsptoolkit needs SPI to communicate with the DSP. Check out https://www.raspberrypi-spy.co.uk/2014/08/enabling-the-spi-interface-on-the-raspberry-pi/
You can then install the toolkit by just running
sudo pip3 install –upgrade hifiberrydsp
This will only install the software, but not activate the server. Depending on your system, you might need to create a startup script or a systemd unit file for this.
If you’re using a Debian based system (e.g. Debian, Raspbian), there is a script that does all the work for you. Just run the following command:
This server runs in background and provides a TCP interface (port 8089) to access DSP functions. It is compatible with SigmaStudio. That means you can directly deploy DSP programs from SigmaStudio and change parameters online.
The server automatically dumps the so-called parameter RAM to the file system when it terminates. On startup, it checks for a parameter RAM file and if it exists it writes it back to the parameter memory. This ensures that parameters like volume controls, filter parameters, switch settings will be automatically restored even if they are not saved in the EEPROM.
The server accepts the following command line parameters:
|--alsa||Create an ALSA volume control that is synced with the volume control of the running DSP program|
Command line utility
The dsptoolkit command is the main command line tool to communicate with the DSP TCP server. The command line parameters are documented in doc/dsptoolkit.md
The software can be used to push filters created by Room Equalisation Wizard (REW) to the DSP. Have a look at the guide in /doc/rew-basics.md
DSP profile format
DSP profiles can be generated directly in SigmaStudio. However, to enable the full potential of DSP Profiles and allow DSPToolkit to directly control the DSP program, you need to add some additional metadata to the XML file. The process to create a DSP profile is documented in /doc/dspprofiles.md
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