Reiz

pyReiz is a low-level auditory and visual stimulus presentation suite wrapping pyglet, sending markers via a pylsl outlet. You can also read more extensive documentation online.

Installation

The requirements for pyReiz are pyglet and pylsl. They are checked, and if necessary installed, during pip install. There is also a dependency on pyttsx3 to allow on-demand synthesis of auditory cues from text. If you don't need that or can't acquire a version of pyttsx3 for your architecture, install pyreiz without the [tts] suffix.

Windows

pip install Reiz[tts]

Linux

The most recent version of pylsl is not yet on pypi. A solution is to install libsl manually. You download a recent build of liblsl from https://github.com/sccn/liblsl/releases. Afterwards, install pylsl directly from github.

pip install git+https://github.com/labstreaminglayer/liblsl-Python.git
pip install Reiz[tts]

Mac

On Mac, tts and reiz-marker are not supported. These functionalities will be mocked, so at least, you can develop on Mac to deploy on Linux or Windows.

pip install Reiz

Development

git clone https://github.com/pyreiz/pyreiz.git
cd pyreiz
pip install -e .[tts]

Test your installation

After you installed Reiz, you can give it a test-run by calling python -m reiz.examples.basic from your terminal. This should start a throwaway MarkerServer, and present a series of visual and auditory stimuli. If anything does not work out, inform us of the issue.

Additional Information

Create your own experiment

Examples can be found in reiz/examples. A quite extensively documented basic example can be found here: basic example.

Recording

Because all markers are send via LSL, i suggest recording with Labrecorder. Use at least 1.13, as this version supports BIDS-conform recording, offers a remote interface and has a critical timing bugfix included.

Requirements

The key requirements for pyReiz are pyglet and pylsl. We require pylsl>=1.13 because a timing issue was fixed in that version (see https://github.com/sccn/liblsl/issues/8), and pyglet>1.4 because there was a breaking change between 1.3 and 1.4 in the way audio was generated and played (see https://github.com/pyreiz/pyreiz/issues/2). For text-to-speech, which is included with [tts], a key requirement is pyttsx3.

Acknowledgments

I adapted code from Cocos2d for generation of some openGL primitives.