sadrec 0.2.0

Light-weight electrophysiology audio recorder with live plotting and spike detection

Soundcard ADC Recoder (SADRec)

The SADRec is a lightweight Python app for viewing and recording any signals connected to your soundcard microphone input. It is based on the following Python Packages:

• PyAudio (https://people.csail.mit.edu/hubert/pyaudio/)
• PyQt6 (https://pypi.org/project/PyQt6/)
• PyQtGraph (https://www.pyqtgraph.org/)
• Numpy
• SciPy

Installation

If you are using Anaconda, it is recommended to first create a new environment.

conda create --name sadrec
conda activate sadrec

Then install sadrec via pip:

pip install sadrec

Open your terminal and run:

sadrec

Features

• Live View - Audio Monitor
• Store recording in a wav file
• Low and High Pass Filter
• Navigate the Viewer with shortcuts
• Simple Sine Wave Stimulator (via Speaker)
• Open and view wav files (e.g. your recordings)
• Live Spike Detector

Navigation

There are several handy keyboard shortcuts for navigation:

"M" to mute and unmute audio monitor
"R" to start and stop recording
"B" to reset the view
"C" to center the view (y-axis)
"T" and "Shift+T" to zoom the x-axis
"X" and "Shift+X" to zoom the y-axis
"Left" and "Right" to move along the x-axis
"Up" and "Down" to move along the y-axis

---

Nils Brehm - 2025