I just wanted to share a recent mod I started using on my Touch.
It came from the same set of mods I use on my Linux/Music Player Daemon machine.
The Mod does three things.
increase audio threads priority
prevent audio threads from sharing interrupt lines
adjust interrupts/processes according to their use
An outline can be found
https://sites.google.com/site/comput...x-touch-tweaks
Its pretty simple to do, give it a try and let me know what you think.
Happy Listening.
Dynobot
P.S. This mod is done in conjunction with Soundchecks mod with the buffer set to 3600.
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Thread: New Squeezebox Touch Mod
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2011-08-04, 10:49 #1Member
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New Squeezebox Touch Mod
Last edited by dynaudiorules; 2011-08-04 at 12:43. Reason: Updated Broken Link
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2011-08-04, 12:30 #2
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2011-08-04, 12:33 #3Senior Member
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You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...
Touch(wired/W7)+Teddy Pardo PSU - Audiolense 3.3/2.0+INGUZ DRC - MF M1 DAC - Linn 5103 - full Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters,VdH Toslink,Kimber 8TC Speaker & Chord Signature Plus Interconnect cables
Stax4070+SRM7/II phones
Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything.
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2011-08-04, 12:42 #4Member
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2011-08-04, 16:51 #5Member
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2011-08-04, 16:58 #6Member
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Hi Kiat,
Please post your impressions.
Thanks!
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2011-08-04, 17:10 #7Senior Member
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Does this overlap soundcheck's mods? Maybe the same ideas are in soundcheck's latest mods...?
CiAudio VDC-SB - Touch (TT 2.0 mods, removed toslink, disconnected screen, buf:20000)
PSaudio DLIII DAC (Cullen 4 mods) - PSaudio Trio C-100 Amp (Cullen 3 mods)
Energy Veritas 2.2i speakers (mundorf silver oil capacitors, inductor, and resistor mods)
Martin Logan Depth i (x2) (xover at 35Hz, +2db boost at 20-25Hz)
Cardas power cables - PSaudio Duet - Cardas clear light interconnect -- black cat XV-ULTRA digital cable - Audioquest slate biwire spkr cables
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2011-08-04, 17:54 #8Member
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No overlap.
1) I took a look at Soundchecks mods to see exactly what they were doing before I decided to implement these mods.
2) This command [ps -eLo pid,cls,rtprio,pri,nice,cmd | grep -i "irq"] will tell you exactly what priorities the audio threads etc. are at, none were affected with Soundchecks Level 2 mods.
3) Repeating the above command after my mod will clearly show the new priority settings.
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2011-08-04, 22:42 #9Senior Member
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Hi Dynaudiorules,
I'm really interested in trying this out but I'm a total Linux newb....
I'm not 100% clear about what I'm supposed to do.....
What I have done is opened WinScp, logged in, navigated to the proper file and installed the 5 yellow highlighted lines of code, and rebooted the Touch. So far so good.
What I don't understand is what, if anything else, I'm supposed to do. I've got Soundcheck's mods installed and so the WLAN is already disabled. Do I also need to go in and comment out the lines having to do with Samba? If so, how does one "comment out" something?? If I have to go back in and comment this out, do I also need to reinstall those previously installed 5 lines of code?
Is all the stuff under "Detailed information about the mod..." just informational or is there other stuff in there that needs to be done?
Finally, I have the buffer size set (via Soundcheck's mod) to 4000 because I was getting crackle at 3600. How much, if any, does this adversely affect your mods?
Sorry for all the questions, but I really am a complete novice at this.
Thanks for any help and, especially, thanks for your work should this turn out to improve the sound quality of the Touch.Last edited by rgro; 2011-08-04 at 22:56.
Rg
System information
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Main: Vortexbox > Teddy Pardo PS >Touch (wired) > USB> MF VLink II >Toslink > Rega DAC > LFD LE IV Signature amp > VA Mozart Grands > REL Acoustics R305.
Home Theatre: Touch (Wired) > Pioneer VSX 919 > Energy Take 5 Classic 5.1.
SBS 7.7.2 r33908 on a Vortexbox Appliance, V 2.2, Touches: FW 7.7.2 r9663.
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2011-08-05, 00:26 #10Senior Member
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'What I have done is opened WinScp, logged in, navigated to the proper file and installed the 5 yellow highlighted lines of code, and rebooted the Touch. So far so good.'
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That's really all you need to do.
The other section is just showing how to get more detail about the system and section 3. installs the mods on a one-off basis.
Editing the file as you did makes the changes permanent.
Do you notice any difference in sound output?

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