QT db measurment?

[Dino Vince]

Haven’t ever seen one, but I’m wondering why you’d want this info? If you’re just checking your audio levels to make sure they’re okay, you can hit the letter ‘l’ on the keyboard a few times while playing your sequence. This will play the sequence faster, while still allowing you to monitor the audio levels.

[Paul Figgiani]

I think Scott is referring to the average loudness, or RMS, yes?

If so, I use Bias Peak Pro for precise analysis..

-paul.

[Scott Davis]

What I have is 10 or so QT files I am going to have play back to back on a DVD. I have mixed in FCP to around -6 and to what sounds good to my ear. I want to know that one piece is not going to be substantially louder than another. So if I could get an average measurement (ie -6) I would have a secondary acknoledgment that they are in the same ball park. All together it is 5 1/2 hours of material and I just want them in the same ball park. We will have a proper mix done once we go to the finishing stage.

Scott Davis

[Matthew Campagna]

For those of you who do any kind of audio work requiring a measurement of your entire program look no further.

AudioLeak is a program that will go through your entire audio file and give you a few weights for your audio in decibels. I used it on a public broadcast television series that required a technical evaluation before it was allowed on air. I mixed the audio within the required broadcast range, using the AudioLeak program and had no problem passing the technical evaluation. It is a stand alone program and is pretty cheap for the work it does.

[Scott Davis]

Mark, Perfect!!! That is exactly what I was looking for. Very, very handy.

Scott Davis

[Mark Spano]

You need a longterm equivalent loudness meter. Hardware unit would be Dolby’s LM100. Software (freeware) that I’ve used is AudioLEQ. Drop an audio file into it and it will measure long term average loudness. Very useful IMO.

https://www.apple.com/downloads/macosx/audio/audioleak.html