Re: [LAD] Calculate R M S (Alfs Kurmis)

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To: <linux-audio-dev@...>
Date: Saturday, February 19, 2011 - 9:54 am

Le Fri, 18 Feb 2011 21:05:36 +0000,
Fons Adriaensen a écrit :

> On Sat, Feb 19, 2011 at 09:16:32AM +1300, Jeff McClintock wrote:

Such indicators shows the average value of the signal, not the
instantaneous value. In case of DC, they are the same, but they are
quite differents in case of AC signals like audio. That is why the
needle should never exceed -6db when recording with old analog
equipment.
The exact value you should not exceed depend of the kind of music you
are recording.

> The meter itself is equivalent to a second order lowpass

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Messages in current thread:
Re: [LAD] Calculate R M S (Alfs Kurmis), Jeff McClintock, (Fri Feb 18, 8:16 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Fons Adriaensen, (Fri Feb 18, 9:05 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Dominique Michel, (Sat Feb 19, 9:54 am)
Re: [LAD] Calculate R M S (Alfs Kurmis), Folderol, (Fri Feb 18, 9:19 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Fons Adriaensen, (Fri Feb 18, 9:28 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Chris Cannam, (Fri Feb 18, 9:27 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Fons Adriaensen, (Fri Feb 18, 9:39 pm)
Re: [LAD] Calculate R M S (Alfs Kurmis), Folderol, (Fri Feb 18, 8:44 pm)