Author Topic: RTA Averaging  (Read 140 times)

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peterlufrano

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RTA Averaging
« on: October 30, 2017, 10:03:11 AM »
Hi all,

I am wanting to confirm that the RTA program does indeed perform measurement averaging?

am I correct that when running the RTA program, the softwar averages the response measurements made during and controlled  the "duration" time that is specified in the submenu?

As there is no user manual that I have found, I am hoping to confirm this, and also if possible know the proper method/instructions for making use of this functionality please.

Many thanks in advance!

FaberAST

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Re: RTA Averaging
« Reply #1 on: October 30, 2017, 06:10:15 PM »
Hi,

The Octave analyzer tool (RTA) supports both exponential (Lp) and linear (Leq) averaging of the signal in each whole or 1/3-octave frequency band. For exponential averaging, Fast, Slow, and Impulse time weightings are supported. For linear averaging, the average level is calculated over the entire duration of the measurement.

SignalScope's built-in documentation includes information on how to access the averaging options.

Let us know if you have more questions.

peterlufrano

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Re: RTA Averaging
« Reply #2 on: October 30, 2017, 06:24:16 PM »
Hi,

Thank you for your response!

this "SignalScope's built-in documentation" you mention. How do I access this?

thank you in advance!

FaberAST

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Re: RTA Averaging
« Reply #3 on: November 01, 2017, 02:46:45 PM »
In SignalScope, you'll see an info button (a little 'i' in a circle) on the right side of the toolbar at the top of the screen. Tap that, and then tap on Help.

peterlufrano

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Re: RTA Averaging
« Reply #4 on: November 01, 2017, 03:42:09 PM »
Hi,
Thank you for your response.
I found that, but I can't seem to find anything pertaining to how to use the averaging function.

Do you happen to have instructions you could give me?

Thank you in advance!

FaberAST

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Re: RTA Averaging
« Reply #5 on: November 07, 2017, 03:39:50 PM »
What would you like to do with averaging?

peterlufrano

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Re: RTA Averaging
« Reply #6 on: November 07, 2017, 04:28:05 PM »
Well, I'd like to be able to take RTA measurements, moving the mic around the listening position where the listeners head would be situated during the 20 second interval, and have the RTA average the measurements taken during the 20 second interval.

(I hope that makes sense!)

Can it do that? if so, how do I do that?

Many thanks for your indulgence!

FaberAST

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Re: RTA Averaging
« Reply #7 on: November 16, 2017, 08:45:38 AM »
Based on your description, I would recommend that you look in the Octave Analyzer options menu and set Level Type to Leq, turn on Auto Stop, and set the duration to 20 seconds.

peterlufrano

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Re: RTA Averaging
« Reply #8 on: November 16, 2017, 08:52:13 AM »
simple as that? So the program averages all the measurements it takes during the set "duration" automatically?

FaberAST

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Re: RTA Averaging
« Reply #9 on: November 16, 2017, 10:05:20 PM »
Yes. With those settings, you'll get the average sound level over 20 seconds in each whole or 1/3 octave band, plus an overall (full bandwidth) average level. You can see the overall level by tapping the graph to turn on the cursor.

peterlufrano

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Re: RTA Averaging
« Reply #10 on: November 16, 2017, 10:50:38 PM »
sweet! thank you so much for helping me (and your indulgence!)