Average RMS analyser

  • Quentin Harley
Posted: Wed, 03/05/2008 - 16:24
Does anyone know of a linux tool you can use to find the average RMS of a wav file. I am playing with some new mastering techniques, and I would like to see what I am doing to the audio. Any tip appreciated Quentin

Thanks for feedback

  • mirami
  • 02/20/08
  • Sat, 03/22/2008 - 15:51
Japa and meterbridge works fine, but I am not able to compile Buddy RMS. Any advice pls? Anyway I would rather use native linux application. So if you find some other RMS analyser in the future let here some link pls. regards mirami Asus M6Va,CPU 2GHz, RAM 2GB, 64studio 32bit 2.1 pre11

Feedback

  • Quentin Harley
  • 05/24/07
  • Thu, 03/20/2008 - 10:02
I have checked out sonicvisualiser. More of a academic tool than a mastering tool IMHO. Phase checker: #> /usr/bin/meterbridge -t jf x x opens a jellyfish scope that shows the phase relationships. Works very well. Thanks for the rest, I'll check them out Edit: JAPA works great. RMS Buddy is a VST, for Window and Mac (and VST not supported by 64bit yet :-s

RMS and others

  • mirami
  • 02/20/08
  • Thu, 03/20/2008 - 09:48
On Ardour forum "mattb" helped me find these links http://destroyfx.smartelectronix.com/museum.php Name of utility is RMS Buddy... Haven't time to check them yet.. And here are some others audio analysis tools... Spectral analysers http://www.sonicvisualiser.org http://www.baudline.com http://www.kokkinizita.net/linuxaudio (japa utility... mattb's recomendation) Phase checker http://plugin.org.uk/meterbridge If anybody try them pls leave some feedback... mirami Asus M6Va,CPU 2GHz, RAM 2GB, 64studio 32bit 2.1 pre11

Solution

  • Quentin Harley
  • 05/24/07
  • Thu, 03/06/2008 - 19:59
Daniel posted a solution in the Development list: Intall the normalize-audio package from Debian. In the folder with the tracks, in terminal window, do the following: $ normalize-audio -bn *.wav Computing levels... level peak -12.1733dBFS -0.3845dBFS export.wav -12.1733dBFS average level 0.173349dB volume adjustment This is the output of my final master of a choral album I completed recently. Luckily it is right on the money! Cheers,

Either...

  • Quentin Harley
  • 05/24/07
  • Thu, 03/06/2008 - 05:31
I need some way to measure the perceived loudness of a track, just as a rough guide. That way the transition from first to last track would be minimal. The problem is that I have a special acapella project of vintage gospel choir music. The tracks are sorted in a way that follows the flow of a typical concert, in that the tracks follows a line, as if its a phrase itself. It starts very bright and chirpy, and gets into more of a reflective nature towards the end. To make them fit is real easy, but the transition from back to front is too large. Using RMS I can place the track loudness roughly as a start, and then adjust the individual tracks to match the real perceived loudness compared to tracks on either side. The mood of the track stays intact because of our ears adjusting to sound levels relatively quickly, and that I would manually place a quieter song a bit lower in gain after the initial RMS placement.

live or not...

  • ttoine
  • 11/15/07
  • Wed, 03/05/2008 - 20:36
Quentin, Are you looking for an instant/live information, or for a "passive" analyzing tool ? Toine