The Punch and Adaptive Compression parameters are Powair’s two not-so-secret weapons - both, as far as we’re aware, unique to the plugin. Last but not least, the Gain Range lever limits the amount of positive and negative gain change the Leveller can apply, from 0 (off) to +/-20LU. The detection and response speed is adjustable between 400ms and 5s, and the Noise Floor slider establishes the threshold above which it operates, preventing background noise from bringing the level up. Set a Loudness Unit target and the Leveler effectively ‘rides’ the volume level of the signal to keep it consistent, lowering it when it exceeds the target and increasing it when it falls below. BS 1770 is one of the most widely accepted and ‘proven’ of broadcast standards - indeed, many other standards used around the world are based on it - so the Leveler is a very handy inclusion for mastering.ĭeployment is straightforward enough. The first of Powair’s two processing stages is an ITU-BS 1770-compliant K-Weighted Perceived Loudness (LKFS) Leveler.
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