dotnet

PvRecorder Demo for .NET

This project contains a .NET command-line demo for PvRecorder that demonstrates how to use PvRecorder to record audio to a WAV file.

PvRecorder

PvRecorder is an easy-to-use, cross-platform audio recorder designed for real-time speech audio processing. It allows developers access to an audio device's input stream, broken up into data frames of a given size.

Requirements

• .NET 8.0

Compatibility

• Linux (x86_64)
• macOS (x86_64, arm64)
• Windows (x86_64)
• Raspberry Pi:
  • 3 (32 and 64 bit)
  • 4 (32 and 64 bit)
  • 5 (32 and 64 bit)

Installation

This demo uses Microsoft's .NET SDK.

Build with the dotnet CLI:

dotnet build

Usage

To build the demo:

cd demo/dotnet/PvRecorderDemo
dotnet build

To show the available audio devices run:

dotnet run -- --show_audio_devices

To run the demo, give it a file to record audio to:

dotnet run -- --output_wav_path ${OUTPUT_WAV_FILE}

You can also select the audio device index to use for recording (use --show_audio_devices to see options):

dotnet run -- --output_wav_path ${OUTPUT_WAV_FILE} --audio_device_index ${DEVICE_INDEX}