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4.4.9-rt17 series


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#11
I have tried the PXE version of the 64bit kernel. And it worked correctly on my setup.

Compared with the standard kernel the sound seems to have improved a little bit as I have the feeling that there is a more space between the instruments. Not night and day, but so far I have only tested using my headphones. Tomorrow I will also test using my speakers which I expect will make it easier to hear the differences.

Tnx for your effort! :-)
[-] The following 1 user Likes Leonard's post:
  • agent_kith
#12
Today I tested the sound quality again but now using my speakers instead of my headphone. And as I already expected it was immediately clear that the sound stage has indeed extended a lot! Difference is more than subtile. Never have been able to create such a room filling sound stage with my setup before. Really impressed by that!

Downside however is that I must also say that this benefit comes at a price. The sound is also a bit aery and thin. The singers and instruments don't have enough body and because of that the music is also a bit less engaging.

Difficult to make a choice between both kernel versions. For me this is another proof of how important good  tuning of the software is for the sound you get out of your system. As I think of it now, after listening to both versions for a while, I think I will go for the impressive soundstage of the new PXE version you created and try to tweak my setup to see if I can enhance the weight/body.
#13
(11-Jun-2016, 04:20 AM) Leonard Wrote: Today I tested the sound quality again but now using my speakers instead of my headphone. And as I already expected it was immediately clear that the sound stage has indeed extended a lot! Difference is more than subtile. Never have been able to create such a room filling sound stage with my setup before. Really impressed by that!

Downside however is that I must also say that this benefit comes at a price. The sound is also a bit aery and thin. The singers and instruments don't have enough body and because of that the music is also a bit less engaging.

Bigger sound stage is what I noticed too..

Do you mean airy and thin? As in perhaps more "treble energy"? If yes, that's what I find too. A lot of the music I was used to listening now sounds harsher for me too. But I reckon it's the recording itself (Still a guess at this stage, as I'm still testing).

Do you have any recording of shattered glass, something like the following video:

Listen to the "timbre" of smashed/smashing glass is a good indication of how good the presentation of the upper frequencies are. Another would be wooden flutes (from China and Japanese).
(11-Jun-2016, 04:20 AM) Leonard Wrote: Difficult to make a choice between both kernel versions. For me this is another proof of how important good  tuning of the software is for the sound you get out of your system. As I think of it now, after listening to both versions for a while, I think I will go for the impressive soundstage of the new PXE version you created and try to tweak my setup to see if I can enhance the weight/body.

[Image: wow2.gif]
Snakeoil Operating System - Music, your way!
[-] The following 1 user Likes agent_kith's post:
  • Leonard
#14
(11-Jun-2016, 05:41 PM) agent_kith Wrote: Bigger sound stage is what I noticed too..

Do you mean airy and thin? As in perhaps more "treble energy"? If yes, that's what I find too. A lot of the music I was used to listening now sounds harsher for me too. But I reckon it's the recording itself (Still a guess at this stage, as I'm still testing).


With airy and thin I mean that the music lacks 'body and weight'. As if you can see right through the musicians. They are not actually there.
I cannot say the sound is too harsh in my setup. However as the mid-range is less apparent the high frequencies are more prominent. I assume this is actually because there is less noise. This may also be one of the reasons that sound stage got wider.
In the end I think the new kernel is an improvement in terms of sound stage and less noise. However I still have to work on how to get that nice mid-range back again. 
[Image: smile.png]
#15
(16-Jun-2016, 06:02 PM) Leonard Wrote: With airy and thin I mean that the music lacks 'body and weight'. As if you can see right through the musicians. They are not actually there.
I cannot say the sound is too harsh in my setup. However as the mid-range is less apparent the high frequencies are more prominent. I assume this is actually because there is less noise. This may also be one of the reasons that sound stage got wider.
In the end I think the new kernel is an improvement in terms of sound stage and less noise. However I still have to work on how to get that nice mid-range back again. 
[Image: smile.png]


Try this, edit /boot/grub.cfg, look for your boot menu item, add "nolapic" at the end of the line. It'd look somehing like the following:
Code:
linux /casper/vmlinuz boot=casper file=/cdrom/preseed/snakeoil.seed persistent toram quiet splash nolapic


Save the file and try and see how it goes.. Also try noapic over nolapic and see which you prefer.
Snakeoil Operating System - Music, your way!
[-] The following 1 user Likes agent_kith's post:
  • Leonard
#16
(16-Jun-2016, 07:41 PM) agent_kith Wrote: Try this, edit /boot/grub.cfg, look for your boot menu item, add "nolapic" at the end of the line. It'd look somehing like the following:
Code:
linux /casper/vmlinuz boot=casper file=/cdrom/preseed/snakeoil.seed persistent toram quiet splash nolapic


Save the file and try and see how it goes.. Also try noapic over nolapic and see which you prefer.


That helped a lot. Tnx!!!!  [Image: smile.png]
#17
First post updated with new kernel supporting USB M2Tech devices.

Update: Thread closed as we are transitioning to Snakeoil 1.0.0!
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