pvrecorder 1.2.0

Recorder library for Picovoice.

PvRecorder Binding for Python

Compatibility

• Python 3.5+
• Runs on Linux (x86_64), macOS (x86_64 and arm64), Windows (x86_64), Raspberry Pi (all variants), NVIDIA Jetson (Nano), and BeagleBone.

Installation

pip3 install pvrecorder

Usage

To start recording initialize an instance and run start:

from pvrecorder import PvRecorder

recorder = PvRecorder(frame_length=512)
recorder.start()

(or)

Use get_available_devices() to get a list of available devices and then initialize the instance based on the index of a device:

from pvrecorder import PvRecorder

devices = PvRecorder.get_available_devices() # select index of device

recorder = PvRecorder(frame_length=512, device_index=0)
recorder.start()

Get a frame of audio by calling the read() function:

frame = recorder.read()
# do something with frame

To stop recording just run stop on the instance:

recorder.stop()

Once you are done, free the used resources. You do not have to call stop before delete:

recorder.delete()

Demos

pvrecorderdemo provides command-line utilities for recording audio to a file.