I have had a similar experience. Here is what happened with me.
I entered the latest SBGK values into TT with a buffer size of 3200.

As usual better bass and midrange but same hashy/wet lower treble and
slight congestion across the soundstage that has always been with me
for TT3, but not TT2 with the last set of Dynaudiorules values.

Then I made the following changes, set the buffer to 4000, rebooted and
changed the following priorities manually.
chrt -f -p 40 154
chrt -f -p 40 155
chrt -f -p 40 367

But I kept process 99 (IRQ-14) at 39.

The hashy lower treble was gone, with razor sharp definition but not
hashy, splashy or overemphasis and the soundstage was clearer and more
defined. The overall effect was almost a relief and sounded right in a
way that TT3 has never sounded for me.

I listened in disbelief for two hours, not quite accepting that it was
the settings and thinking that maybe my electrical grid was somehow
clean from everyone being out of their homes and partying elsewhere.

Then I thought thta maybe I could get it sounding even better and
manually set process 49 (IRQ-34) to 40.  A mistake. The SBT hung and I
had to reboot it.

After rebooting I set the priority values as above - but it was back to
the wet hashy treble sound. Even though I could step through my terminal
log and replicate the values exactly, the sound was not the same.

Here is what I concluded before I caught up with this thread today -
that the buffer value is somehow intrinsically linked to the process
values.  Change the buffer values and some priorities need to be
changed to work with it. Change the priorities and the buffer needs to
be changed to fit. Also maybe the order the process priorities were set
also has an effect?  Maybe one of the values didnt get set  to a new
value or was stuck.

Anyway Im going down now to do some more tests, but I think we close to
cracking it.


cfraser;679126 Wrote: 
> Thanks for comments. I will try to look into what's going on over the
> next few days as events allow. I was too captivated by the music last
> night to try to analyze what the problem might have been.
> 
> Oh yeah, I just remembered that there *was* another change from how I
> normally have TT3.0 configured: I changed the buffer size to 3200 per
> SBGK's setup in his own system. I have been running with 4000 since
> TT2.0, and I don't recall why I was using that value as I never got any
> of the noise you might associate with too small a buffer.
> 
> I could go on and on about the SQ last night. One other aspect that was
> very noticeable was an increased soundstage width (when
> appropriate...vocals were still very localized and didn't sound like
> coming from a 1m wide mouth), and also it was moved forward. One of the
> things that the BDA-1 DAC does, here, is it tends to flatten the
> soundstage a bit, speaking depth-wise, noticeable with Maggies anyway
> and nicely restored by the priority mods. I was sometimes surrounded by
> music more akin to from my turntable, except maybe even better and
> certainly much more convenient.


-- 
HumanMedia
------------------------------------------------------------------------
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View this thread: http://forums.slimdevices.com/showthread.php?t=91322

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