How to get a spectral analysis

It takes for example Adobe Audition 3.0

1. Start the programm.

2. Click "File -> Open" and choose the file. Window will look like this:

3. Then click the button Spectral Analysis Display

Window will look like this:

Spectrum standarts for CBR mp3:

96 kbps - cuts on 15000 Hz

128 kbps - cuts on 16000 Hz

160 kbps - cuts on 16500 - 17000 Hz

192 kbps - cuts on 18000 - 18500 Hz

224 kbps - cuts on 19000 Hz

256 kbps - cuts on 19500 Hz

320 kbps - cuts on 20000 - 20500 Hz

That example cuts on 15000 Hz, therefore, we are dealing with the recording quality 96 kbps. So you can check, is the stated quality true or false.