Audio Loudness Meter Extended 5.1 – Standalone, Audio Loudness and True Peak Meter application, with extended features BS1770 and EBU R128 compliant. Taking the idea behind the ALM 5.1 plugin a step further, we developed a standalone application, with extended features, that offers more control and power, allowing you to use it in more complex situations: the ALMx 5.1 (stands for Audio Loudness and True Peak Meter with extended features). The application was created as an aid for the television networks and media services providers. Recommendations regarding loudness levels exists in many countries, some of them have already implemented the standards as law, while others are in the legislative process. Just like the ALM 5.1 plugin, the driving forces behind the application are the algorithms developed according to the international broadcast standards (BS-1770, EBU R128, ATSC A/85), based on research and perception tests.
With the help of the log feature, you can pinpoint the time and the duration of the loudness disturbance. ALMx 5.1 offers you full Loudness and True Peak Metering for Mono, Stereo and 5.1 channel formats featuring measurements for Momentary, Short Term and Integrated Loudness, with Loudness Range and Max True Peak Level. Additionally, the application offers you a general or a more detailed overview of your measured material, any time you want. The information is saved in a .xml file.
Standalone Loudness and True Peak Metering for Windows and Mac
Channel Formats: mono, stereo and 5.1
Full compliance with Loudness standards : BS-1770 (rev.3), EBU R128 and ATSC A/85 specifications
Complete loudness measurements using universal descriptors: Integrated Loudness (ILk), Momentary Loudness(MLk), Short Time Loudness(SLk), Loudness Range(LRA)
Real-time metering for Momentary Loudness, Short Term Loudness and Loudness Range;
True Peak Level Metering with peak hold
Max True Peak Level (calculated using inter-sample peaks that can be missed in quantization)
Accurate measurements for all the usual sample rates: 44.1 kHz, 48 kHz and multiples
Low CPU usage due application optimization
Logging files in XML format
Variable colors for loudness descriptors, according to the comfort zone from “Intelligent Program Loudness Measurement and Control: What Satisfies Listeners?”, written by RIEDMILLER, J.C., LYMAN, S. and