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View Full Version : 5.1.6 and LR channels reversed



Jan Willem Koegrachtengraven
2004-05-07, 00:29
Sean,

I just came back from a short vacation and found the lastest firmware
(version 23) in the nightly from mai 6. This one should address "LR channels
reversed" problem but.....

It is still reversed as before i only use flac files on the digital out.
Analog is OK. My DAC is my Amplifier (marantz SR5200) connected with
toslink. As a reference track i use track 6 from Queen Innuendo, Ride The
Willd Wind. If you know the track.... The motorcycle is on the original
riding from the left to the right. With the squeezebox it is riding from
right to left. The file is ok I checked it on my computer!

Any suggestions????
Jaap

PS: The squeezebox is surely running firmware 23. I changed
squeezebox.version with 1 line at the bottom: 21 23

Michel Fombellida
2004-05-08, 02:10
Hi,

Same here. However, my experience is that they don't swap anymore, they just
stay reversed.

Michel

Mike Reeve
2004-05-08, 07:18
> Same here. However, my experience is that they don't swap anymore, they just
> stay reversed.

Michel

To follow up this thread and the others that we have participated in
over the past few weeks (months?) on the channel reversal issue ...

Up until Version 23 we seemed to be sharing completely the problem,
however, now your channels are the wrong way round and don't change
and mine are the right way round and don't change
(except for one brief, unexplained, moment when I first installed V.23).

If I recall correctly your server runs on Windows. Mine is on OS X
- so, Sean/Dean, could it be that the issue is now not just the firmware
but some interaction between the server/OS combination that is different
for the Windows/OS X versions
- may be this is clutching at straws but its weird that
Michel & I now have different experiences,
so it might be worth thinking about ...

[Jaap on what OS are you running SlimServer?]

On the other hand is there some race condition in the SqueezeBox
because of marginal timing?
This could also explain the now inconsistent behaviours ...
I seem to remember Sean talking about the modules of the SqueezeBox
being architected on a software bus
and that there were possibly some timing issues
- such as the display glitches that someone saw a short while back ...

Just curious (and trying to help) ... :-)

Mike

Michel Fombellida
2004-05-08, 08:36
Hi Mike,

yes indeed I am running the server on XP Pro, via a netgear wireless router. I
did another listening test this morning and the channels were still reversed.

By the way, I tested the squeezebox via a dCS Purcell and I still notice the
problem that the system takes quite a long time (more than 10 sec) to lock on
44.10 when first initialising the squeezebox or switching from MP3 to WAV
files. Once it is locked it stays perfectly on 44.10 but strangely enough it
seems that the first time the squeezebox has to play a WAV file the clocking
mechanism does not immediately generate the correct clock (it starts at 43.95
instead of 44.10)! Is this also your experience.

Michel

Michel Fombellida
2004-05-08, 14:12
Hi Mike,

new listening test and guess what... the channels are back to normal! So with
23 they still swap but apparently less often. I don't know what I did to get
them back to normal, I just played music and of course used the pause, stop,
backward and forward buttons.

Michel

Mike Reeve
2004-05-09, 06:47
Michel Fombellida <mf22433@...> writes:

> By the way, I tested the squeezebox via a dCS Purcell and I still notice the
> problem that the system takes quite a long time (more than 10 sec) to lock on
> 44.10 when first initialising the squeezebox or switching from MP3 to WAV

Michel

Unfortunately I no longer have a Big Ben with which to check the frequency
- I sold it when I moved to a single box player (Musical Fidelity TriVista)
after a relocation brought me a (very nearly) acoustically perfect room
and I stopped using my TacT RCS 2.0 ...

However, I do have a Genesis Digital Lens between my SqueezeBox and DAC.

As you probably know, the Digital Lens indicates the sample-rate clock error,
and yes it is off the scale when I restart the SqueezeBox
[once per day, after installing the latest nightly each morning]
but like you I see it settle down (I haven't really looked at how long it takes)
- once settled it is an impressive 18ppm (as I have said before
this is better than may so called 'audiophile' transports - KUDOS SEAN!).

As the single SqueezeBox I currently own [although I intend to buy more ... :-)]
is in my main hi-fi system I never play MP3s on it,
so this long-PLL-settling period has never particularly bothered me
- particularly as the end result is so phenomenally good :-)

Regards

Mike

Mike Reeve
2004-05-09, 06:59
Michel Fombellida <mf22433@...> writes:

> new listening test and guess what... the channels are back to normal!

Michel

Perhaps their reversal is some form of paranormal-psychological phenomena ...
.... after Sean told me that it was not possible that
the channels could be switched in Version 23 my L&R returned back to normal;
now that I have told you in one of my previous posts that
Sean says that it is not possible that they could be switched
yours have returned back to normal ...

:-) :-) :-) :-) :-)

Mike

Michel Fombellida
2004-05-09, 07:42
Hi Mike,

I must admit that this is not a critical problem at all, I only very rarely
switch to Shoutcast to listen to internet radio and then switching back to WAV
generates the problem... and yes I love my squeezebox, it is an excellent
product.

Michel

Michel Fombellida
2004-05-09, 07:45
Mike,

it must be :) :)

Michel

Michel Fombellida
2004-05-09, 11:45
Hi,

> I must admit that this is not a critical problem at all.

I of course meant that the "delay to get the clock stable" is not a critical
problem.... the LR channels reversed IS a critical problem.

Michel