[LAU] Issues with JACK

[Gabbe Nord]

Hello again!

Seems like more of my card is giving up, the outputs are now uneven in
strength etc. Oh well, it's maybe 6 years old. Might aswell get a new one!

I'm looking at internal pcie cards, as I cannot use pcie, and usb is a mess
for me. Any word on the EMU 0404? that's my biggest candidate so far. I
tried browsing around some for information, but I weren't really able to
figure out if it works or not. Any knowledge here about that?

Thanks again for taking the time to help me!

Cheers
Gabriel
On Mar 7, 2013 12:27 AM, "Len Ovens" <len at ovenwerks.net> wrote:

> On Wed, March 6, 2013 11:46 am, Gabbe Nord wrote:
> > Hello all, and thank you so much for your answers! I feel like I need to
> clear up a few things here for my own sake, sorry for being slow: * You
> are referring to an "I/O" USB card that connects to PCI-E as a solution,
> right?
>
> Yes. See my comments below as the two are related :)
>
> > * I don't really know what IRQs are to which port etc, but I have my
> soundcard plugged in to one port, and my USB-hub with everything else on
> on
> > yet another. I also have USB-ports on the front of my case, which are
> connected to the motherboard directly. Can I somehow find out what's
> connected to what inside the computer, and how do I modify my IRQ-files
> to
> > correspond to where I have my soundcard? Will unplugging/replugging and
> using lsusb -t do that for me?
>
> You posted your cat /proc/interrupts a few days ago. In there I could only
> see two USB ports at all. USB1 and USB2. Not only that, but both USB ports
> use the same IRQ. What this means is that, even though there are some more
> physical USB ports on your machine, they are only there because the MB has
> an internal USB hub (or two). The only way to get beyond that I can see is
> to add a new USB interface on a fresh IRQ. I don't know what kind of slots
> your MB has (PCI or PCIe or both) but USB cards should be available for
> either... probably cheaper than a new audio card. Make sure it is USB2.0
> or USB3.0 (+2 +1.1) and not just 1.1 ...
>
> I normally just use dmesg to find out what the new device is:
> [363472.113041] usb 1-7: new high-speed USB device number 3 using ehci-pci
> That says the usb stick I inserted is in USB1 (a USB2.0 port) and that is
> device 3 (out of 4 I am guessing)
>
> lsusb -t gives this before I add the device:
> $ lsusb -t
> /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M
>     |__ Port 8: Dev 2, If 0, Class=stor., Driver=usb-storage, 480M
> (Dev 2 is my system disk right now)
>  and this after:
> $ lsusb -t
> /:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
> /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/8p, 480M
>     |__ Port 7: Dev 5, If 0, Class=stor., Driver=usb-storage, 480M
>     |__ Port 8: Dev 2, If 0, Class=stor., Driver=usb-storage, 480M
>
> Hmm, now it is device 5, so I guess it is not out of 4. I don't know what
> the port is though. My cat /proc/interrupts looks like this:
>
>  16:    1881681   IO-APIC-fasteoi   uhci_hcd:usb2, uhci_hcd:usb5, nouveau
>  17:    1985740   IO-APIC-fasteoi   eth0
>  18:      66775   IO-APIC-fasteoi   ata_piix, uhci_hcd:usb4
>  19:          0   IO-APIC-fasteoi   uhci_hcd:usb3
>  20:     210124   IO-APIC-fasteoi   snd_ens1370
>  22:   25879534   IO-APIC-fasteoi   snd_ice1712
>  23:    1281786   IO-APIC-fasteoi   ehci_hcd:usb1
>
> The interesting thing to note is that when I told the BIOS _NOT_ to give
> my USB devices IRQs The kernel does so instead and USB1 (as you can see)
> now has it's own IRQ, it used to share 16... Not so good as it is the only
> high speed USB device I have.
>
>
>
> > On a different note: If I were to get a new soundcard instead, does
> anyone
> > have recommendations of non-USB cards? There seems to be some issues
> with
> > PCI-cards and newer motherboards (I have a z77 intel chipset or
> something)
> > that uses emulated and not native PCI. I guess this resricts me from
> using
> > PCI-cards? (referring to
> > http://www.linuxmusicians.com/viewtopic.php?f=6&t=10106 ).
> > I'm using 48khz and 24bit right now, and I record mostly acoustic guitar
> and vocals (both singing and rap vocals). Is there any reason for me to
> run
> > 24bit, maybe I could get away with 16bit? I do not really want to reduce
> quality, even by a little, so if there's any reason not to go 16bit I
> probably won't.
>
> If you already have a 24bit device, get it working. There are not very
> many PCIe sound cards around and those that are seem to be (overly)
> pricey. Even a PCI 24 bit card will probably cost you more than a new USB
> card. I think 24bit is worth having, I just figured you were running
> USB1.1 at 16 bits right now. I was mistaken.
>
>
>
> --
> Len Ovens
> www.OvenWerks.net
>
>
>
>
>
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