The new LM2 is one of the first products that complies with the European R128 loudness standard, as well as US standards. The meter analyzes any audio, be it speech, music or other sources, assigning it an ATSC A/85- or EBU R128-compliant loudness number. Numbers may be used to normalise programmes, commercials and music tracks, and to set metadata in AC3 transmission.
This eliminates level jumps and other inconsistencies sometimes caused by human error. For example, after mixing for many hours, a user's ears will get tired, making it harder to determine loudness levels. With the LM2 meter, the user can rely on an exact number as a reference for the mix instead of his ears. Similarly, using the LM2 as part of a monitoring signal path ensures a consistent loudness level in the mixing environment.
"Accurate loudness level is not only an extremely hot topic right now for both the worldwide professional audio and broadcast markets, but it's also absolutely critical to any production," says Thomas Lund, HD development manager, TC Electronic. "Until now, few measurement products were capable of taking all the guesswork out of loudness metering. TC Electronic, however, has designed the LM2 meter to offer loudness reference points based on algorithms, not just the human ear. This ensures a completely consistent level of loudness standardization across a production, offering audio professionals tremendous reliability and peace of mind."
(Jim Evans)
