WasapiWavMon: Precision Audio Monitor/Recorder
May 25, 2026
WasapiWavMon is a lightweight, precision audio monitor and recorder designed for engineers,
musicians, and audio hobbyists who need accurate real-time input level monitoring, peak detection,
and clean WAV capture using Windows WASAPI (Windows Audio Session API).
WasapiWavMon is a Windows 10/11 .NET application. It is designed to provide detailed accurate audio-level input status
for either built-in audio sound cards or external USB-connected audio interfaces (for example,
the Focusrite Scarlett 2i2). This application requires an installed .NET 8+ desktop runtime.
Features:
- Samples both channels of a stereo input audio source at Wasapi 32 bit resolution and at the current audio devices sampling frequency (44.1, 48, 96 kHz)
- Linear bar-graph meters show instantaneous amplitude for left and right channels
- Numeric readouts show true peak values in dBFS, updated in real time
- The Max dBFS values (since Start) is displayed for both channels
- A central Record function records the sampled input audio and writes a standard uncompressed 16 or 24 bit wav file at the input sampling frequency of the audio device.
- During Record mode, a convenient timer shows the elapsed recording time.
- An Event Count function counts peak audio signals above a user-defined Threshold level.
This Count function is ideal for transient detection, percussion analysis, noise bursts, or threshold-based monitoring.
Download WasapiWavMon.exe (191,688 bytes Digitally Signed, Requires .NET 8+ runtime)
Microsoft .NET 8.0.27 Win10/11 x64 runtime installer (~27 MB)
WasapiWavMon is built using .NET 8 for maximum performance, stability, and long-term support.
Any future stable .NET Desktop Runtime (9, 10, etc.) will also run the app.