Question on Effect -> "Base and Treble" and "Graphic EQ"

Hi,

I’m using Windows version 2.3.3, and have a question on Effect → “Base and Treble” question.

Suppose I use Base=0 dB and Treble = 5 dB. What is the equivalent or approximate adjustment for Effect → Graphic EQ?

The reason for this question is that I play with different settings in “Graphic EQ” but can’t find an ideal setting to make sax brighter. When using Base=0dB & Treble=5dB in “Base and Treble”, I can hear sax sound getting improved. So if I know the equivalent Graphic EQ settings for Base=0db & Treble=5dB, then I can possibly make fine adjustment around this equivalent Graphic EQ setting to further improve sax sound.

Thanks & regards,
Lee

+5db boost at 20KHz, none at 0Hz …

By the way, how can we find that nice curve after we enter different Base & Treble dB #s?

Thanks & regards,
Lee

If you look on the spectrogram view when the sax comes in you will see the frequency-range it occupies.

Generate white noise, apply an equalization to it, (e.g. via Bass & Treble effect), then do a “plot spectrum”.

Whatever the number is on the bottom of the vertical axis of the frequency-analysis plot, add that number to any other number you read off that axis, e.g. If it says “-22db”, add **+**22 to all the other numbers.

Thank you for the information. This is the very first time I use spectrogram in Audacity. It’s very helpful to see the frequency-range occupied.

If you look on the spectrogram view when the sax comes in you will see the frequency-range it occupies.

I import sax track and see the following spectrogram:

It looks like every single section of the track occupies from 0 Hz to 8 KHz. If I zoom in to the section that sounds brighter, this section looks like this:

The plot has different colors (blue, yellow, orange, red…). How can we tell which frequencies has what intensity from this plot? Can Audacity show another curve for the focus point (where the black vertical line is at), and let this curve use horizontal axis for frequency (e.g. 0 - 20 KHz) and vertical axis for intensity (dB)? This way, we can see what frequencies have more intensity at this focus point.

Thanks & regards,
Lee

White areas have the most energy …
https://manual.audacityteam.org/man/spectrogram_view.html#meaning

Plot spectrum will do that … Plot Spectrum - Audacity Manual
but you have to select a short* section of audio, rather than a line.
[* the minimum selection is ~1/100th of a second for plot spectrum]

Thank you for all the information. Much appreciate. It helps a lot!