What are these numbers in Target report?

Hearing Aid Self-Fitting and Adjusting [DIY]
1

Big thanks to DIY forum people for help with software access and lots of good information! Today was my first time connecting my Phonak L50 (unchanged since set up by audi) feeling nervous, not trying to make changes, just looking :nerd_face:

I printed reports from Target so I could to see side-by-side the original settings for various programs but puzzled about the circled numbers.

auto_calm_original1
auto_calm_original11707Ă—612 166 KB

I’m guessing those numbers show each small increase or decrease or zero difference… in relation to what? And what units? Can anyone help me understand this?

Thanks :smiley:

2

Those are just MPO( maximum power output) and CR (compression) G50 soft sounds,G65, medium/moderate and loud at G80, these change depending on the program, and of course when in fine tuning, I’d do a little bit more research before jumping in and doing any DIY projects, not sure if the DlY school has any of this information, but the target user guide is handy, as well as the automatic fine tuning
in target.

3

I think your 65 dB gain is around -1 dB up to 6 dB only? The same thing with the others as well, just can’t see them too well with the circle.

The arrows to raise them or lower them in the middle will say 1 dB or 3 dB with each arrow, if you hover the mouse over the arrows. (In the software.)

4

Thank you both for responding. Don’t worry @Tenkan I’m not rushing to change things and I have read lots of helpful info in DIY School. I still need to learn more! :slightly_smiling_face:

Yes that’s at 65 dB on the Right HA, the Left is from -3 to 5.
So this means from 1 dB less, up to 6 dB more… than what?

5

0 dB. Can’t be anything else!

It won’t be from 50 dB.

You get roughly a 1/3 of the gain needed and with your hearing loss being so mild, up to 8 dB for you G50 worth of gain is what it is.

You don’t get 20 dB of gain for a 20 dB loss.

6

@Zebras thanks for your help and sorry I’m finding this quite confusing.

Row G65 is for input sound at 65dB e.g. conversation - is that correct?

G65 Right:
6 for 2.5k - does that mean the HA will amplify/increase mid-frequency input sound by 6dB?

-1 for 310 - will the HA reduce low frequency input sound by 1dB?

-1 for 6.7k - will the HA reduce high frequency input sound by 1dB?

This is for “Calm situation” so I would not expect my HAs to reduce input sound… ???

7

I believe those numbers are reference steps, not db’s

8

RUTH
RUTH1028Ă—154 17.3 KB

This is mine. The max is 84 dB for my hearing aid. I have always been told it is dB.

My step mums hearing loss is mild to moderate and her lows are -1 as well.

@justlisten

@raylock1

@tenkan Are these numbers dB or another reference? Would you know?

Might be dB SPL?

9

From the target 8 step by step guide:
The gain or MPO values can be changed by clicking on the up
or down arrow next to the table. You have the option to make
one step changes (single arrow) or three step changes (double
arrow). These steps do not equal to changes in decibels. If you
wish to view the compression ratio for each frequency
channel, they are shown in the row directly underneath the
gain values

https://www.phonak.com/content/dam/celum/phonak/master-assets/en/documents/resources/phonak-target/ph-guide-target8.0-step-by-step-210x297-en.pdf

10

Yeah it’s confusing, Gain (input, low to high) = Volume (loudness) which = dB, so if you change in “steps” and watch the graph, you’ll notice an increase or decrease in dB depending on whether you click up or down, the graph shows increase or decrease in dB, but what Phonak are saying it’s not 1 step = 1dB or 3 step = 3dB across the board, some frequencies more some less, so it’s steps, but 1 step or 3, “steps” must have a valid value? which corresponds to dB right?
Looks like one of the Pro’s is gonna have to chime in.

11

@justlisten

If you hover the lines in Target.

That gives you the dB for each G number and frequency.