Jump to content
Poweramp
Sign in to follow this  
blestprune

EQ bars values

Recommended Posts

It would be nice to have values by the side of each EQ bar, or at least let us know the default +-db limit so we can divide by the number of steps. 

Share this post


Link to post
Share on other sites

I was trying to find this out myself, and after doing some searches it seems this question has been around for a while.

So I decided to do an experiment and find out the EQ steps for myself. Executive summary: each step in the EQ (by tapping above or below the slider) is 1.5dB

 

Details:

Poweramp full version v3-build823

All audio processing done in Adobe Audition

I created a 24/48 flac file containing a -20dB pure 1kHz tone in Audition then played in in Poweramp on my phone and routed the headphone out to the line-in on my motherboard. Then I recorded the output from Poweramp while changing the 1kHz EQ silder. After recording each step in the EQ I analysed the volume using Audition amplitude statistics and noted down the total RMS amplitude for each segment. Here's the results:

Step level   difference
0 -22   0
1 -20.5   1.5
2 -19   3
3 -17.5   4.5
4 -15.99   6.01
5 -14.49   7.51
6 -12.99   9.01
7 -11.49   10.51
8 -9.99   12.01
9 -8.49   13.51
10 -6.99   15.01
-1 -23.51   -1.51
-2 -25.01   -3.01
-3 -26.45   -4.45
-4 -27.95   -5.95
-5 -29.45   -7.45
-6 -30.95   -8.95
-7 -32.38   -10.38
-8 -33.88   -11.88
-9 -35.38   -13.38
-10 -36.88   -14.88

The slight drift seen from step -7 down may simply be due to non-linearity in my recording setup and is not significant. As you can see, the maximum range is +/-15dB and this is broken into 10 equal 1.5dB steps.

Share this post


Link to post
Share on other sites
1 hour ago, charleski said:

As you can see, the maximum range is +/-15dB and this is broken into 10 equal 1.5dB steps.

Thank You !

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×