Analysis of Spectrograph

[aakash_1111]

James, I saw one of your post you saying:
"The spectrogram is the discrete frequency graph plotted over time. The more red, the more brainwaves at that frequency".

I have few questions regarding this, when you say more red , more brainwaves at that frequency, which brain waves will that be? (I see the graph from 0 to about 60 Hz, so when it is red, which fq it is? what about the other colors at the same time when I see red?)

1- Like, if there is more blue, or green or yellow, what brain waves are more at that frequency?
2- How does the color gradient matter, what exactly does it indicate and setting it to different gradient chnages what? and what does it mean?

Sorry if I am bothering you with my questions, just want to understand what it all exactly shows or means...

And really thank you and appreciate for all the work and help.

[James]

The spectrogram shows the same data as the discrete frequency graph, the only difference is that it logs the level as colour scrolling upwards.
The frequency is the x axis and amplitude is the colour.
If you hold two fingers on the graph you can see and set the colour range min+max by moving your fingers on the screen.