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Re: Build a dedicated Audio PC

Posted: Wed Dec 11, 2013 9:30 pm
by sbgk
separate box for each one with good separation from convertor and then dc cable separate from ac

suppose with what you've got you could try it with the tx as far from the convertors as possible ie out of the box as far as the wires allow and
with the dc wires separate from the ac wires to see if it makes a difference. I've done it with amps and cd players before and also rerouted the cable
in a benchmark dac

Re: Build a dedicated Audio PC

Posted: Wed Dec 18, 2013 12:21 am
by nige2000
another mobo that looks interesting
http://www.gigabyte.com/products/produc ... id=4819#ov

Re: Build a dedicated Audio PC

Posted: Sun Dec 22, 2013 10:20 pm
by tony
Something I have lived with over the year. My HDD is attached by a/b usb cable to Zuma. On occasions I get not responding and a nice long delay before file opens up.
This is generally after playing a few tracks and when browsing to the next choice a delay occurs. This doesn't happen every time. Do other people suffer this?
I have an SSD currently being temporarily used by my offspring but this will be retrieved when Santa visits. But it still only has 250GB of space. I am assuming this internal disk will work quicker than the external HDD. Am I missing something or is there an adjustment to do. I use 2012R2 on a USB stick.

Re: Build a dedicated Audio PC

Posted: Sun Dec 22, 2013 11:05 pm
by nige2000
ideally ssd powered by battery and a fancy sata cable would be best
just going to internal sata or usb3 with usb3 port and usb3 external hard drive would resolve the speed issue even with a spinning hard drive
usb2 is out as far as speed goes

i would say network storage but i get a good lift by disabling ethernet

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 2:31 am
by jesuscheung
am thinking about buy a new board. 2 xeons board. the idea isn't clean power. i just want IRQ/interrupts processing dedicates in one xeon. so another xeon can 'purely' do audio processing.

this is the only method, given the design of windows.

in fact, with 2 processors, i can apply MS 'least resource intensive' drivers, like VGA. turn off all hardware offloading(network, GPU) coz i can offload everything onto another processor.

xeon has some kind of protection against memory corruption. hopefully i can turn it off too. useless for audio.

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 9:46 am
by nige2000
jesuscheung wrote:am thinking about buy a new board. 2 xeons board. the idea isn't clean power. i just want IRQ/interrupts processing dedicates in one xeon. so another xeon can 'purely' do audio processing.

this is the only method, given the design of windows.

in fact, with 2 processors, i can apply MS 'least resource intensive' drivers, like VGA. turn off all hardware offloading(network, GPU) coz i can offload everything onto another processor.

xeon has some kind of protection against memory corruption. hopefully i can turn it off too. useless for audio.

given the design of windows IRQ/interrupts real time processing etc we would probably be better start with another os

there is probably merit in the dual socket mobo as it could up to halve cpu noise

trouble is the noise from one cpu 4 pin might travel add/exacerbate to noise on the power supply then travel over and back to your other cpu
a 7ah 12v battery on each cpu would help against this

regardless seems silly not to address the noise coming into the pc first

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 10:12 am
by internethandle
nige2000 wrote:
jesuscheung wrote:am thinking about buy a new board. 2 xeons board. the idea isn't clean power. i just want IRQ/interrupts processing dedicates in one xeon. so another xeon can 'purely' do audio processing.

this is the only method, given the design of windows.

in fact, with 2 processors, i can apply MS 'least resource intensive' drivers, like VGA. turn off all hardware offloading(network, GPU) coz i can offload everything onto another processor.

xeon has some kind of protection against memory corruption. hopefully i can turn it off too. useless for audio.

given the design of windows IRQ/interrupts real time processing etc we would probably be better start with another os

there is probably merit in the dual socket mobo as it could up to halve cpu noise

trouble is the noise from one cpu 4 pin might travel add/exacerbate to noise on the power supply then travel over and back to your other cpu
a 7ah 12v battery on each cpu would help against this

regardless seems silly not to address the noise coming into the pc first
yeah, fully agree - another CPU, no matter how much effort is made to reduce its noise, will still add a tremendous amount of noise into the circuit, I think.

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 2:31 pm
by jesuscheung
nige2000 wrote:
jesuscheung wrote:am thinking about buy a new board. 2 xeons board. the idea isn't clean power. i just want IRQ/interrupts processing dedicates in one xeon. so another xeon can 'purely' do audio processing.

this is the only method, given the design of windows.

in fact, with 2 processors, i can apply MS 'least resource intensive' drivers, like VGA. turn off all hardware offloading(network, GPU) coz i can offload everything onto another processor.

xeon has some kind of protection against memory corruption. hopefully i can turn it off too. useless for audio.

given the design of windows IRQ/interrupts real time processing etc we would probably be better start with another os

there is probably merit in the dual socket mobo as it could up to halve cpu noise

trouble is the noise from one cpu 4 pin might travel add/exacerbate to noise on the power supply then travel over and back to your other cpu
a 7ah 12v battery on each cpu would help against this

regardless seems silly not to address the noise coming into the pc first
hmm.. bad news.. but did you actually try 2 CPU? if so, did you actually try offloading as much as possible onto another CPU (as 2012/R2 is designed to do exactly this)? from reading MQn thread, every CPU cycle counts for SQ.

another OS is jplay's retarded idea. don't spread it. 2 OS = twice the amount of interrupts. bottlenecked by lan cable. bottlenecked by twice the hardware buffers (CPU caches, memory, hdd buffers, network cards buffer)

streaming from software player (MQn) to CPU is difficult enough. 2 OS is just technically no brainer.

if anyone thinks two OS is good idea, then youtube is the king of audio. what computer can stream better than google's youtube? everyone should just listen to audiophile youtube if it ever comes by

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 2:58 pm
by nige2000
nope havent tried dual cpu mobo but it seems like a worthy experiment
can you get them cheaply?

but cpu 4pin dumps noise on the 12v rails, so dual cpu wouldn't be as good as it could be unless each cpu has separate clean supplies, thats all i know for sure

Re: Build a dedicated Audio PC

Posted: Mon Dec 23, 2013 9:14 pm
by tony
Is this a similar approach to JPlay streaming? Can you not use two mobo's and get the same or close effect?