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music analysis outputs

Posted: Wed Feb 29, 2012 9:26 am
by avigail
I use audacity as a mean to analyze sound. I would like to know what is the meaning of the numbers on the left when I define the waveform?
also when i get a txt. file of the spectrum analysis there is no indication about the time units.
What have i to do un order to get this info?
thanks
avigail

p.s. If you know a better tool to analyze acoustic parameters i will be happy to know

Re: music analysis outputs

Posted: Thu Mar 01, 2012 3:33 am
by Gale Andrews
avigail wrote:I would like to know what is the meaning of the numbers on the left when I define the waveform?
http://manual.audacityteam.org/man/Audio_Tracks#scale
avigail wrote:when i get a txt. file of the spectrum analysis there is no indication about the time units. What have i to do un order to get this info?
You don't - it's amplitude against frequency (two dimensional).

You can see spectrograms against time:
http://manual.audacityteam.org/m/index. ... enu#spgram

using the Track Drop-Down Menu:
http://manual.audacityteam.org/m/index. ... -Down_Menu

but there is no text print out.

If you want a text print out of sample values over time, try Sample Printer:
http://forum.audacityteam.org/viewtopic ... 39&t=34365
avigail wrote:If you know a better tool to analyze acoustic parameters i will be happy to know
Try http://www.sonicvisualiser.org/ (I do not use it, but it is free).



Gale