linuxaudio.org

On Wed, 2010-07-14 at 19:56 +0200, Arnout Engelen wrote:

quoted text
> You're posting a lot of information, but I'm going to ask some stupid questions

> anyway - just trying not to jump to conclusions before getting a crystal-clear

> picture of your setup.

>

> On Wed, Jul 14, 2010 at 03:23:03PM +0200, Ralf Mardorf wrote:

> > 1.

> >

> > I disconnected all audio connections for JACK and connected hw MIDI in

> > to hw MIDI out. connected the DX7 MIDI out directly to the D4 MIDI in and

> > then I reconnected to the PCI card.

> >

> > The difference is alarming :(.

> >

> > Yamaha DX7 --> Alesis D4 results in a 100% musical groove.

> > Yamaha DX7 --> PC --> Alesis D4 results in extreme latency

>

> So here you're directly routing the MIDI IN to the MIDI OUT, and experiencing

> latency. Are you using JACK here, or directly ALSA? In other words, are you

> connecting 'in' to 'out' in the qjackctl 'MIDI' tab or in the 'ALSA' tab?

>

>

> Regards,

>

> Arnout

Now I'm really short in time, so very minimalist:
Mobo: ASUS M2A-VM HDMI, a while ago the BIOS was up-to-date, I guess

it's still up-to-date
Integrated graphics ATI Radeon X1250-based replaced by a NVIDI Geforce

7200GS.
# hwinfo --cpu

01: None 00.0: 10103 CPU

  [Created at cpu.301]

  Unique ID: rdCR.j8NaKXDZtZ6

  Hardware Class: cpu

  Arch: X86-64

  Vendor: "AuthenticAMD"

  Model: 15.107.2 "AMD Athlon(tm) X2 Dual Core Processor BE-2350"

  Features:

fpu,vme,de,pse,tsc,msr,pae,mce,cx8,apic,sep,mtrr,pge,mca,cmov,pat,pse36,clflush,mmx,fxsr,sse,sse2,ht,syscall,nx,mmxext,fxsr_opt,rdtscp,lm,3dnowext,3dnow,rep_good,extd_apicid,pni,cx16,lahf_lm,cmp_legacy,svm,extapic,cr8_legacy,3dnowprefetch

  Clock: 2100 MHz

  BogoMips: 4199.32

  Cache: 512 kb

  Units/Processor: 2
RAM: 2GB
Sound cards: 2x Terratec EWX 24/96 just stereo IOs, Envy24, not as one

virtual card, I'm only using one card at the moment

Not connected anymore: Swissonic USB MIDI IO
No USB devices, e.g. keyboard and mouse are PS/2.
I'm connecting MIDI in the Qtractor (quasi QjackCtl) ALSA MIDI tab.
To be continued tomorrow or on Friday.
Thank you!
Cheers!
Ralf
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