Re: [LAU] Issues with JACK

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To: <len@...>
Cc: linux audio users <linux-audio-user@...>
Date: Thursday, March 7, 2013 - 10:17 pm

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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" wrote:

> On Wed, March 6, 2013 11:46 am, Gabbe Nord wrote:

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Hello again!
Seems like more of my card is giving up, the outputs are now uneven in s=
trength etc. Oh well, it's maybe 6 years old. Might aswell get a new on=
e!
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 s=
o far. I tried browsing around some for information, but I weren't real=
ly 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" &=
lt;len@ovenwerks.net> wrote:
On Wed, March 6, 2013 11:46 am, Gabbe Nord wrote:

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 so=
lution,
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

br>
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
d
using lsusb -t do that for me?

You posted your cat /proc/interrupts a few days ago. In there I could only<=
br>
see two USB ports at all. USB1 and USB2. Not only that, but both USB ports<=
br>
use the same IRQ. What this means is that, even though there are some more<=
br>
physical USB ports on your machine, they are only there because the MB has<=
br>
an internal USB hub (or two). The only way to get beyond that I can see is<=
br>
to add a new USB interface on a fresh IRQ. I don't know what kind of sl=
ots
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<=
br>
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
/: =A0Bus 05.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 04.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 03.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 02.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 01.Port 1: Dev 1, Class=3Droot_hub, Driver=3Dehci-pci/8p, 480M
=A0 =A0 |__ Port 8: Dev 2, If 0, Class=3Dstor., Driver=3Dusb-storage, 480M<=
br>
(Dev 2 is my system disk right now)
=A0and this after:
$ lsusb -t
/: =A0Bus 05.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 04.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 03.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 02.Port 1: Dev 1, Class=3Droot_hub, Driver=3Duhci_hcd/2p, 12M
/: =A0Bus 01.Port 1: Dev 1, Class=3Droot_hub, Driver=3Dehci-pci/8p, 480M
=A0 =A0 |__ Port 7: Dev 5, If 0, Class=3Dstor., Driver=3Dusb-storage, 480M<=
br>
=A0 =A0 |__ Port 8: Dev 2, If 0, Class=3Dstor., Driver=3Dusb-storage, 480M<=
br>

Hmm, now it is device 5, so I guess it is not out of 4. I don't know wh=
at
the port is though. My cat /proc/interrupts looks like this:

=A016: =A0 =A01881681 =A0 IO-APIC-fasteoi =A0 uhci_hcd:usb2, uhci_hcd:usb5,=
nouveau
=A017: =A0 =A01985740 =A0 IO-APIC-fasteoi =A0 eth0
=A018: =A0 =A0 =A066775 =A0 IO-APIC-fasteoi =A0 ata_piix, uhci_hcd:usb4
=A019: =A0 =A0 =A0 =A0 =A00 =A0 IO-APIC-fasteoi =A0 uhci_hcd:usb3
=A020: =A0 =A0 210124 =A0 IO-APIC-fasteoi =A0 snd_ens1370
=A022: =A0 25879534 =A0 IO-APIC-fasteoi =A0 snd_ice1712
=A023: =A0 =A01281786 =A0 IO-APIC-fasteoi =A0 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 o=
nly
high speed USB device I have.

> On a different note: If I were to get a new soundcard instead, does
anyone

with
something)
using
mp;t=3D10106 ).
guitar
and vocals (both singing and rap vocals). Is there any reason for me to
run
ce
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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Re: [LAU] Issues with JACK, Len Ovens, (Wed Mar 6, 11:27 pm)
Re: [LAU] Issues with JACK, Gabbe Nord, (Thu Mar 7, 10:17 pm)