E-mu 0404 USB performance issue

Ask Fedora
1

Hi there, I have an E-mu 0404 USB interface and after Fedora 43 latest patches (Don’t know which patches) causes serious performance issues. Serious drops and playback issues emerges. I using Waveform 13 and didn’t tried on another DAW. And Waveform 13 goes unusable after plugging and connecting E-mu via usb. IDK what’s the problem but only thing I know it was not emerging before Fedora 43. On fedora 42, Audio interface and daw both were usable together.

2

https://support.creative.com/Products/ProductDetails.aspx?prodID=10498&prodName=E-MU+0404 says:

The product you have selected has been classified as ‘End of Service Life’.
Support for such products is limited to online materials, such as Knowledgebase Solutions and product documentations available on the Creative Customer Support website.

Linux support for “unsupported” devices often depends on device-specific code provided by a vendor or a user. Sometimes changes for newer kernels inadvertently break code used by older devices that Linux devs can’t test, but there are also efforts to remove device-specific code for devices when the vendor or individual is no longer maintaining the code.

You can try to contact the maintainer for the module used by your working configuration. I’m guessing that might be snd-emu10k1:

% modinfo snd-emu10k1 
filename:       /lib/modules/6.18.5-200.fc43.x86_64/kernel/sound/pci/emu10k1/snd-emu10k1.ko.xz
license:        GPL
description:    EMU10K1
author:         Jaroslav Kysela <perex@perex.cz>
[…]
3

OP has an EMU 0404 USB audio device. That’s not the same as the EMU 0404 PCI audio card.

@destroyerofdemons13 find out what was updated. Use dnf history list and dnf history info <transaction id>, Use dnf4 instead of dnf if you use a GUI to keep the system updated.

Recently alsa-ucm has implemented several changes in its config files for USB devices. Also pipewire has been updated recently from 1.4.9 to 1.4.10.
the third component would be the kernel.

try booting the previous kernel version.

EDIT: fixed typo alsa-ucm is the package name

1 Like
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I’m literally sorry for texting back too late. I’m not sure if it is about dnf, I tried all of alsa solutions, still no any progression. Waveform 13 terribly drops with Emu 0404 USB. And also yes it is not a PCI audio card, it is an Usb audio interface. I’ll try to boot previous kernel version, don’t sure how but I will. Then I’ll update. Thanks