Audio Loudness Meter

Audio Loudness Meter is a powerful solution for On-Air audio loudness metering and assessment. The product provides 24/7 loudness measurement compliant to ITU-R BS.1770-1, ITU-R BS.1770-2 and EBU R 128 recommendations. In intuitive interface, the solution provides the user with the ability to observer and measure the true peak level and to log the measured audio levels information.

Both, file-based and live audio loudness measurements are supported by the product. Any DirectShow compliant audio input device can be used for live audio source. The supported input audio parameters are enumerated and available for configuration through the Audio Loudness Meter Properties form. File-based audio loudness measurement is also supported, where for the demultiplexing and audio/video decoding are used the installed on-system DirectShow demultiplexing and decoding components.

All measurements can be monitored in real-time and are saved into a loudness history log, which can be accessed for later analysis and assessment.

Product Features:

Graphical display of the current measurement 0-24 h
Graphical display of the saved/logged measurements
1, 2, 4 and 6 mono PCM audio input channels
16 and 24 bit audio
From 6 KHz to 96 KHz input audio
Live/On-Air audio loudness measurement
Media file audio loudness measurement
Digital and Analog live audio input through various input audio devices
24/7 measurement logging
CSV log output
Log history graphical display

Measurement Features:

Momentary Loudness Meter
Momentary Loudness Meter Max Value
Short-term Loudness
Integrated Loudness
Loudness range descriptor
Integrated loudness measurement functionality
EBU mode indicator
True-Peak overload indicator