New Filter request(s)

[PeterSt]

Brian,

Seems like there is an active filter in 186i when AP is ticked instead of Custom, when plying at 8x oversampling.

Only with 8x hence not with 16x ?

Peter

[boleary]

Seems like there is an active filter in 186i when AP is ticked instead of Custom, when plying at 8x oversampling.

Only with 8x hence not with 16x ?

Yes, with 16x too. If I recall correctly when I tried to play 8x I had to go into the filter selection box and select the 176/192 filter in order for 8x AP to play at all. So 16X AP with the 705 filter sounded different from 8x AP with the 176/192 filter and the both sounded different to me to 16x and 8x AP in 186a. Hope this makes sense.

[PeterSt]

Hope this makes sense.

Well Brian, usually it does but this time I have some difficulties with it;

The first half of your sentence - especially without more elaboration - seems to tell the real story : You select the Custom Filter first and next have to select the 176.4 filter in order to let 8x play (this would be correct from my POV).

What you say next is that with same Custom Filter but now played at 16x, this sounds different. This is correct because this *is* not the same filter. Why ? because the AP part is different and it now operates at 16x instead of 8x. The filter on top of it is the same all right, but this is only technically so. For net result it is not because its input already is not (the 16x AP vs the 8x AP).

Still there ? I am. But I only followed your own text. And thus :
When the above is compared with 1.186a it can never be the same because there is no Custom Filter in there of which I just told (reasoned) that you were using that for that first half of the comparison.

ONLY and only when you did NOT select the Custom Filter but still had to go into the settings to chose the 176.4 filter because otherwise it would not play, ... then there I have the sense of you reporting something strange. But this is not what you are saying (plus it would imply a sheer bug I don't recognize).

Sorry for the long text, but ...

?

Peter

[boleary]

ONLY and only when you did NOT select the Custom Filter but still had to go into the settings to chose the 176.4 filter because otherwise it would not play, ... then there I have the sense of you reporting something strange. But this is not what you are saying (plus it would imply a sheer bug I don't recognize).

Sorry about the confusion. What you said above is what I was trying to say. I did not select the custom filter, was in AP, and was not able to play at 8x until I selected the 176/192 filter. Then and only then would 8x AP play.

[PeterSt]

Oh boy. Yes, I recall that now. This is a bug I solved by now here. But the effect of this seems other than you describe.

So now I must look in the program what I actually solved and whether you (we) actually activate something after all because of, well, what you describe.
I will do this tomorrow.

Thank you Brian.
Peter

[christoffe]

Oh boy. Yes, I recall that now. This is a bug I solved by now here. But the effect of this seems other than you describe.

So now I must look in the program what I actually solved and whether you (we) actually activate something after all because of, well, what you describe.
I will do this tomorrow.

Thank you Brian.
Peter

Since hours I'm playing 16xAP (no Custom) with version "i", and a seamless switch to 8xAP is possible (on my computer system).
and the driver panel shows 176.400

Joachim

Edit: Forwards and backwards, and the driver panels follows accordingly

[boleary]

Sorry about the confusion. What you said above is what I was trying to say. I did not select the custom filter, was in AP, and was not able to play at 8x until I selected the 176/192 filter. Then and only then would 8x AP play.

What I said above is WRONG. Sorry Peter. However, what I originally said is correct: the filters in 186i change the sound when AP is ticked and not Custom, and, because those filters are changing the sound of AP, the AP sound of 186i is different from the AP sound of 186a.

Had some time this afternoon and tested this. I was wrong that I had to change the filter in 186i to 176/192 in order to play in AP at 8x oversampling. The filter can be either 705 or 176/192 and AP 8x oversampling will play. HOWEVER, the sound when in AP (not Custom) is very different when you change from one filter to the other. It is very different again when changing from any configuration of AP in 186i to that same configuration in 186a. So, AP in 186i is not the same AP we've been listening to for the past months.

Don't know if any of this matters, but here it is what is happening.

[PeterSt]

OK, I'll have to look into this Brian.
Thank you.
Peter

[christoffe]

Hi,

There are differences in the filter 16xAP (from release "e" to "i").

In release "i" the upper mids and highs are little bit more accentuated, what I prefer.

Joachim

[charliemb]

Hi Peter

I've been quiet because I upgraded my DAC to 384,  meaning I was without music and the ability to further test these filters for about 10 days.

I've noticed that few responses have been given with respect to the experimental 705 filter.  I'm willing to try it but I need a version that runs at 384.   Which begs the question:  why not provide 384 versions of the two 705 filters?   

(That was my way of asking for a preferred 384/352.) 

I can say that 352 has changed things.   That is, taking redbook all the way to 352 using the 176 custom filter has now resulted in my preference for that filter over the new AI.  At 176 AI had much of what I needed and Custom 176 was a little short.  But at 352/384 custom 176 filter very seldom has that dry sound and can be very clean and not hinting at lacking any critical harmonics.

This means that your filtering strategy is working over here the higher up in frequency we go, finally (something I bet all NOS1 users already know).  Meaning,  perhaps less ringing is needed as we go up in F.   Certainly some is needed though, IMHO.

[PeterSt]

All right Charlie. I will make "you" a 352.8/384 filter. For now I will do that as "speedy" as I did it with the 176.4/192 filter which means that it will use the same "technology" as the 705.6/768 filter and only optimized for the 352.8 frequency. Makes it comparable as well (sort of virtually).

Thank you again for your reporting.
Peter

[charliemb]

So I tried to revert back to 186.a last night and could not overcome repeated preset errors. Unfortunately, when I removed the 186.a XX.exe and engine3 files from my XX folder it had presets active. Moving them back into the XX folder all I get now are preset errors and going to a "previous preset " setting doesn't work. Do I have to reinstall 186.a from the beginning or is there a particular preset file I could delete to get my original 186.a files to work?

After a fresh reboot, I also tried to revert to 1.186a and am seeing the same "preset errors," over and over.  I seems like it never stops so I shut down and went to sleep.   I reverted by copying the "a" versions of xxHighEnd.exe  Engine3.exe and xx.ahk (maybe the last  one was not needed?) over the i versions to see if 186a solves a synchronization problem I'm seeing now at 352 and 384 after I hit alt-e or alt-s in unattended mode, followed by alt-p,  which almost always causes missed synchronization,  and also at random times after my initial playback session ends when I proceed with further playback.

Except in my case, I have no preset file that works with 186a because I never actually ran 186a.  I installed "a" and then I probably  immediately installed 186h to get to the custom filter, which was the reason for upgrading.   Possibly I played one track, or part of a track but I don't remember.

So for me, should I delete the entire 1.186a folder and start again with a new re-install of 1.186a?

[charliemb]

Two hopefully quick questions:

1) Is it best advised to reboot out of MinOS mode before I switch between 1.186x and 0.9z-9b?

2) Is it best advised to reboot out of MinOS mode before I switch between 1.186a and 1.186i ?

[PeterSt]

So for me, should I delete the entire 1.186a folder and start again with a new re-install of 1.186a?

Charlie, to avoid further hassle for you, I think so, yes.

Not reason to reboot (to answer your two questions).

Sorry for your inconveniences ...
Peter

[charliemb]

Thanks.  And to revert from 186i to 186a do I need to overwrite just xxHighend.exe and xxEngine3.exe?   ...or also xx.ahk or whatever?