SeagramSeven
Head-Fier
- Joined
- May 23, 2006
- Posts
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Quote:
Spectral analysis has everything to do with the intensity of the sound. It takes it a step further than the default waveform view.
The spectrogram plots frequency vertically, time horizontally and intensity(volume) by color. This has the unique advantage of not simply showing you what the "total" volume is, but the spread of that energy across the audible spectrum of sound. At the very bottom of the spectrogram you have 0hz, which scales linearly up to 22,050hz at the very top.
In essence, instead of being told, "This is loud" (default waveform view), you are told exactly which frequencies are loud(spectral view).
The colors which are chosen vary from application to application, but using the default audacity settings you have:
Highest Intensity: Orange-Red
Medium Intensity: Magenta
Lowest Intensity: Cyan
Look closely. This is the same track, plotted to spectral & waveform views.
Originally Posted by slwiser /img/forum/go_quote.gif Please provide a definition or explanation of what is being shown with the spectral view. It looks like to me it is showing the frequency weight of each sample of a passage which has little to do with the loudness issue as I understand it. The scale on the left is frequency and the density of the image seems to indicate that where the tone balance is coming from not the intensity/loudness of the sound. |
Spectral analysis has everything to do with the intensity of the sound. It takes it a step further than the default waveform view.
The spectrogram plots frequency vertically, time horizontally and intensity(volume) by color. This has the unique advantage of not simply showing you what the "total" volume is, but the spread of that energy across the audible spectrum of sound. At the very bottom of the spectrogram you have 0hz, which scales linearly up to 22,050hz at the very top.
In essence, instead of being told, "This is loud" (default waveform view), you are told exactly which frequencies are loud(spectral view).
The colors which are chosen vary from application to application, but using the default audacity settings you have:
Highest Intensity: Orange-Red
Medium Intensity: Magenta
Lowest Intensity: Cyan
Look closely. This is the same track, plotted to spectral & waveform views.