Description

The most fundamental question in audio production, how loud is it? Simple and yet elusive, with loudness inconsistency and incompatibilities present every day in broadcasts across the world.

With detailed, objective loudness measurement, history and logging facilities, VisLM provides a simple, ITU, ATSC and EBU standard compliant way to measure, compare and contrast loudness during production, broadcast and post production, on the fly or for entire sections of audio.

VisLM introduces several essential parameters for audio measurement.

True-Peak level metering (inter-sample accurate level monitoring)
Loudness Range (to help decide if and how much dynamic compression to apply)
Momentary ‘instantaneous loudness’ for mixing by ear
Short term loudness (3 second time window)
Program Loudness (long term integrated loudness measurement)
Practical Applications

Loudness normalization introduces a common reference point for all stages of audio production, allowing audio professionals to remain in control of audio quality and meet current & proposed legislation.
Post production

Objectively measure constituent loudness values
Achieve average loudness harmonization from differing sources
Balance music/dialog/special effects

Mixing | Mastering

Take control of audio quality at source
Avoid ‘level shifting’ further down the broadcast stream
Produce consistent masters
Match average loudness across compilation productions
Preserve audio fidelity using True Peak level meters

Broadcast | Transmission

Harmonize program content
Achieve loudness consistency within channel
Maintain loudness consistency across channels
Meet recent legislation and adopted standards
Manage live broadcast levels rapidly and objectively
Consistently balance music/dialog/special effects
Perform station monitoring and historical diagnostic

Key Features

Market leading quality
Fully standard compliant
Intuitive and detailed
Trusted by professionals
Highly configurable
Time saving design