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 81 
 on: April 26, 2016, 10:03:33 am 
Started by PeterSt - Last post by doublelife
Peter,

This is the correct link:
http://www.wellsaudio.com/headtrip/

Paul

 82 
 on: April 25, 2016, 05:25:57 pm 
Started by PeterSt - Last post by PeterSt
The typical way to connect a headphone in a balanced way is 2 ways. You can use
- one 4 pin Neutrik XLR
or
- two 3 pin Neutrik XLR
connectors

See here a picture of a implementation by Violectric for 4 pin:
http://www.violectric.de/produktdetails-de/hpa-v281.html
and
http://www.wellsaudio.com/products/headphone-amplifiers
for a 3 pin hybrid implementation

Hi Michael,

I have a couple of questions :

Why is that Violectric having two jack plug outputs ? Is that for balanced left and balanced right or something ?
Or is this just so that two people can listen ?

About the Wells, why do you call that a "3 pin hybrid" implementation ? This with the notice that the page you link to seems not to exist ...
(and I suppose it has 2x 3pin XLR)

Thank you in advance for answers,
Regards,
Peter

 83 
 on: April 25, 2016, 11:26:47 am 
Started by manisandher - Last post by manisandher
Thanks Peter, that makes sense. FWIW, I too have a strong preference for Low but sometimes (very rarely) engage Mid if I think there's too much HF grunge (for example with that other DAC I had here recently).

Isn't it interesting that an earlier roll-off can make the sound 'brighter', just because of lower distortion in HF that you can hear!!! So if hires really does sound better, it's nothing to do with the extended frequency range - more likely better phase and timing (pure speculation, because to my ears redbook can sound absolutely fine).

Fascinating stuff!

Mani.

 84 
 on: April 25, 2016, 11:13:15 am 
Started by manisandher - Last post by PeterSt
Hi Mani,

Well, each of the filters is "build up" in a different fashion (like the umber of poles you mention) so it can easily be that. And if the other 3 have a similar sound, then it is coincidence when that would be because of the build up. Of course I see you looking at the 2x 17 for the Low and the first High above, but ... ok, maybe.

My explanation would be a very different one :

I use the Low because there's more "high" in it. This could be hard to explain, but when the high frequency sines are better shaped, they will audibly express more highs to your ears and it is genuine. Remember that this is at the cost of the even higher frequencies we are not suposed to hear very welll anyway (like 16KHz in this case) ...

The High filters approach it the other way around;
They exhibit the most of the highest frequency but now at the cost of THD. The effect ? more highs again.
scratching
So yep. But this time because of the sines out there being too much of a square, so to speak (they are not nice sines because of the implied distortion).
Maybe it is not 100% justified, but squares are more "high frequency"; the "not justified" springs from a kind of chicken egg problem, because a "square" in the music first implies high frequency (a square is build from many high frequency sines), which goes odd because the high frequency sines required, which become square - and those ... etc.

Anyway, the High filters too implies high frequency but that is false.

Lastly, I should add that I use Low from pure theory - I like more highs. So once in a while it is really so that I engage Mid to get rid of too much highs, for the situation of concern. That this next helps is because my theory is right, or that you are right that something is odd or different with Mid. But as long as my theory is there, I like to stick to that ?

Happy
Peter

 85 
 on: April 24, 2016, 10:56:16 pm 
Started by manisandher - Last post by manisandher
Hey Peter, I've been playing around with the 16x filters in my office system. The Mid filter seems 'off'. What I mean is that I can hear some similarity, or 'house sound' between the Low and the two High filters, but Mid just seems so different - much duller/softer than the other three. Looking at the specs there doesn't seem to be a lot of difference between  the Low and Mid, but they sound very different. (Maybe because of the number of poles perhaps?)

Anyway, just let me know if everything is actually in order, and as you would expect.

Mani.

 86 
 on: April 24, 2016, 09:34:32 am 
Started by tempo - Last post by PeterSt
scratching

 87 
 on: April 24, 2016, 12:29:16 am 
Started by tempo - Last post by tempo
I would try Q3,4,5 = 1 (things will be quite differently in there for "control").
And try that other Appointment Scheme (maybe this first) ...


Peter,

First, I set the CPU to a constant (native) speed of 2.8 GHz. Out of three playlists, one stopped when XXHE reappeared, but two immediately played again.

Then I changed Q3, 4, and 5 to = 1, as you suggested. On two long playlists, one stopped as it should, but one repeated itself immediately.

In all cases, the OS was minimized, play was unattended, and I waited until XXHE reappeared on its own.

That's as much as I have time for today, but next I'll try different Appointment Schemes and report back in a few days.

Thanks!
Joseph

 88 
 on: April 23, 2016, 07:18:58 pm 
Started by tempo - Last post by PeterSt
Joseph,

I would try Q3,4,5 = 1 (things will be quite differently in there for "control").
And try that other Appointment Scheme (maybe this first) ...

Peter

 89 
 on: April 23, 2016, 07:13:46 pm 
Started by Flecko - Last post by PeterSt
Hey Charlie,

Nah, this has been solved BUT is back again in a bit of a different way. I run into it some times myself, but I always forget to put it into my ToDo.
But doing that now !

Thanks,
Peter

 90 
 on: April 23, 2016, 06:20:45 pm 
Started by Flecko - Last post by charliemb
Hi Peter

This is a reply to a post from June 2013.  In version 2.01,  I encounter this also with 320 Kbps mp3 and only in unattended mode.   To listen to 320 K mp3 I have to listen in attended mode.

I would say this is not urgent for me.  Nor would I ask you to put significant amount of time fixing it.  I can always listen in Attended, as mp3 losses even at 320 are far greater than what is lost in Attended mode (say my ears);  and also I rarely listen to MP3.

Charlie

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