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in the 1980s. Complaints to broadcasters about the intrusive level of interstitials programs (advertisements, commercials) has resulted in projects to develop such meters. Based on loudness metering, many manufacturers have developed real-time audio processors that adjust the audio signal to match a
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EBU Tech 3341 Loudness
Metering: ‘EBU Mode’ metering to supplement loudness normalisation in accordance with EBU R 128
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that is now found everywhere in the audio field, and the extreme compression that is now applied to programme levels.
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and other factors, such as audio spectrum, duration, compression and intensity. One such device was developed by
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that many would argue is needed to optimise the listening experience when changing channels or swapping disks.
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Meters have been introduced that aim to measure the human perceived loudness by taking account of the
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s) and
Integrated (from start to stop) meter and a set of audio signals to test the meters.
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ITU-R BS.1770: Algorithms to measure audio programme loudness and true-peak audio level
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specified target loudness level that preserves volume consistency at home listeners.
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The need for proper loudness monitoring is apparent in the
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234:"Understanding & Verifying Loudness Meters"
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