Hi, again…
It was (and still is; we’re not fully there yet) a very complex tweaking of several of the Beltone HearMax app segments, as well as an addition of one ("Ultra Focus) not standardly there, but replacing “Wind Noise”.
The music accuracy part was mostly a complex tweak of compression time (linear or other approaches) and severity, signal-noise ratio (SNR) and likely some other tweaks I forget (discussed as they were happening, but I wasn’t taking notes).
The speech was mostly shaping of what got amplified to what extent. The "ultra focus’ replaced the “windy” protection, as I no longer live on a sailboat. As well, there are two different (dunno why as they appear the same whenever I’ve used it/them) sections for the remote mic “MyPalPro” A or C; they appear to function the same way, though I suppose one mic may not have the tabletop or the lavalier function (one or the other missing; speculation, so I could be mistaken).
My particular aids have the typical bluetooth functionality, and, significantly, when functioning in Bluetooth, there are no intonation issues. And, my expectation, after all this time, is that my musical intonation issues are related to percussive sounds, as when there’s an orchestra (such as the Cantata performance) over the piano, masking the percussive sound waves, there isn’t an intonation issue. That premise was reinforced in a segment where it was just piano accompaniment and minimal other instruments, with a xylophone which also was slightly off-pitch, to my surprise - but on reflection confirmed my assessment of my intonation difficulties’ sources.
So, to your question, it’s not yet finished, but, in general, I believe it to be a complex gain setting, enhanced by tweaking the individual sub-programs (everything other than the “all around” main program) AND their button-activated alterations.
E.g.:
All around: Noise filter and Speech clarity
UltraFocus: same
Restaurant: Noise filter, Speech focus and Hear everyone
Music: Bass boost and Treble boost
Both MyPalPro: same as music.
My current log (a week’s worth) runs to 2 pages, about half of which is the regular Sunday church service in which I tested EACH subsection (main, plus subsets of the above) during piano-inclusive stuff, and various speech-related periods, either amplified or acoustic examples, both in large-group listening or individual back-and-forth conversations.
I wrote to my audiologist before last week’s, and again yesterday for today’s, adjustment, later this afternoon, a summary of the significant findings. From those (and some minor questions for clarity), she did the various wizardry with the components of the app.
Eventually, it’s my presumption that we’ll arrive at an All-Around status which will have me understanding speech clearly, and perhaps music without the atonality generated by the tweaks in the linear/compression adjustments. At that point I’ll be freed from my dependence on my phone, as, other than unusual circumstance, I’ll be able to merely use the buttons on the aids to move from one program to another without the need for fine tuning.
I hope that’s informative; please come back again if not.