[LAU] [SOLVED] Crackles in audio, drifting intermittent noise etc.

[David Jones]

On Nov 30, 2016 15:01, Len Ovens <len at ovenwerks.net> wrote:
>
> On Wed, 30 Nov 2016, David Jones wrote: 
>
> > On Nov 30, 2016 10:17, Len Ovens <len at ovenwerks.net> wrote: 
> >> 
> >> > termtech <termtech at rogers.com> wrote: 
> >> > 
> >> >> Fascinating! ANY one or two of the cores are OK, 
> >> >>  yet ANY three or all four of them causes the noises. 
> >> > 
> >> > Don't know what CPU you have, but sounds like SMT (hyperthreading isn't 
> >> > working well for you? 
> >> 
> >> His 4 core i5 doesn't have ht... (according to the intel web site) 
> > 
> > My i7 doesn't have the problem, either. Makes me wonder if OP's i5 chip 
> > or one of the supporting chips on the motherboard has a defect? 
>
> Or an engineering mistake, low latency and PCI performance is not exactly 
> top priority in todays computer world. 
>
> I have an i5 (4 core no ht) and a D66, which is the same ice1712 to the 
> PCI bus as the OP. No problems. I have an azus MB which I chose for 
> maximum number of PCI slots (3) so I had as much choice of slot as I could 
> get. I chose minimum on board bells and whistles because those are just 
> more to get in the way of my audio. Intel video (on chip) and even ps2 
> mouse and keyboard. (I have an old mechanical KB that has a switch for "at 
> or xt" to show how old it is). While I don't use a USB Audio Interface, I 
> don't like USB mice if I can avoid them... I have found USB interrupts 
> troublesome in the past. The only USB device I have is a scanner which is 
> turned off when not used, plus the odd USB mem stick and a second keyboard 
> I use with midikb as a controller sometimes for testing. Audio is not plug 
> and play really on a PC (win or linux) if you want low latency it needs 
> exrta work. Linux at least gives one the tools to do that. 

Agreed. Pro audio work (Win or Linux - don't now about MacOS) is such a tiny fraction of total PC use, so I don't think PC makers consider it at all. Even a friend who pursued a music career using Windows systems set up and supplied by experts at Sweetwater never got reliable RT audio performance. (He's now considering a Mac and Pro Tools.)

David W. Jones
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http://dancingtreefrog.com