Signal level indicator help

[diy didi]

I have built the attached circuit into an existing 5 channel mixer project.
It monitors by way of 2 led’s the signal level present at the output of the mixer.
It minitors L&R outputs with two adding diodes at its input.
My question is. I would like to double its sensitivity instead of the first Led turning on at 2V, i would like to have it switch on at 1V of input, and the red led at 2,5V of input.
Which components should be changed? I was thinking change all diodes to Schottky perhaps?
Thanks in advance.

 

[DF96]

The diodes at the input mean that you have to drive this circuit from a low impedance source if you want to avoid injecting distortion into the audio.

You could try removing R3 and C1. Note sure what other effects that might have. It is a peculiar circuit.

 

[epicyclic]

Changing to Schottky would help but don't change D5 as that would have the opposite effect and try reducing the value of R1 .