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<blockquote data-quote="Nick Hickman" data-source="post: 50668" data-attributes="member: 556">Re: Which limiters are good enough?Hi Michael,It&#039;s not really what I expected to see either!It&#039;s tricky showing both RMS and peak thresholds on a single picture.&nbsp; The thresholds are different, and the signal can at any time be &quot;over&quot; one or both limits.&nbsp; I&#039;m sure there are any number of ways to do it but, if either detector says &quot;over&quot;, the gain would typically be divided (by a value derived from the attack time and the period of the update cycle).&nbsp; Plus, if the peak detector is &quot;over&quot;, the peak might be clipped off.&nbsp; The RMS detector must operate over a rolling window of some length (perhaps derived from the attack time).For example, here&#039;s a 1kHz sine wave (in grey) hitting a limiter with an attack time of about 20ms where the peak limit is 6dB above the RMS limit:<img src="http://100dB.com/misc/limit.png" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />Nick</blockquote>

[QUOTE="Nick Hickman, post: 50668, member: 556"] Re: Which limiters are good enough? Hi Michael, It's not really what I expected to see either! It's tricky showing both RMS and peak thresholds on a single picture. The thresholds are different, and the signal can at any time be "over" one or both limits. I'm sure there are any number of ways to do it but, if either detector says "over", the gain would typically be divided (by a value derived from the attack time and the period of the update cycle). Plus, if the peak detector is "over", the peak might be clipped off. The RMS detector must operate over a rolling window of some length (perhaps derived from the attack time). For example, here's a 1kHz sine wave (in grey) hitting a limiter with an attack time of about 20ms where the peak limit is 6dB above the RMS limit: [center][img]http://100dB.com/misc/limit.png[/img][/center] Nick [/QUOTE]

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