Linux USB 2.0 A-to-D 24bit 96kHz 2 XLR with 48v

41 replies [Last post]
matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

I am looking for the following:

  • USB 2.0 Interface
  • 24bit 96kHz
  • 2 XLR inputs with 10mA+ 48v phantom power per channel (mic preamp)
  • Low noise floor & high quality
  • Linux support for the above features

Ideally, I would like to support a hardware vendor who supports their Linux drivers, but failing that, I can settle for something that works with Linux.

I have considered the following, but I am doubtful about Linux support:

  • Core Sound Mic2496 V2
  • E-MU 0404 USB
  • Roland UA-25EX
  • M-Audio Fast Track Pro
  • Henry Engineering USB Matchbox II (does not meet requirements)

Off topic from my question, but feel free to comment, I am also considering one the following mics for voice recording, which the most preferred near the top of the list:

  • Shure KSM32
  • Rode NT1A
  • Neumann TLM 102
  • Shure Beta 58A

Thank you very much for your input.

tbonedude
User offline. Last seen 2 years 4 hours ago. Offline
Joined: 2008-11-08
Posts:

you could get a Zoom H4 for the USB interface (I have used it in linux before with great success before I got a bigger interface. I'm pretty sure it supports 24 bit at 96 khz. Out of what you have listed, the Rode NT1A is the best of em for studio vocals, I think.

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

Thank you very much. I did not think to check portable recorders for USB interface functionality. This one looks very feature packed! Especially considering the price. There is a slightly improved version of it called the Zoom H4n. It seems to support what I want. I searched the Internet for other references to Linux support and I found this:
http://ubuntuforums.org/showthread.php?t=1388162

So at least the driver works.

I have not used the Rode NT1A in person, but in a video review it seemed to be a bit hot in comparison to other mics. I wonder if it was just his setup...or his voice :-P http://www.youtube.com/watch?v=GHvDfRUJHTo It does seem like a good mic.

I will probably delay my purchase of these things for a week or so in case anything more interesting comes up.

I am also open to suggestions for other studio vocal mics.

By the way, it looks like the Roland/Edirol UA-25EX: should work: http://ubuntuforums.org/showthread.php?p=9116329#post9116329 Although 24bit 96kHz support might be new or not there yet: http://alsa.opensrc.org/index.php/Edirol_UA-25EX#Getting_Advanced_mode_to_work

A user reports that Tascam US122L works, although it is obsolete. I wonder if its replacement, the US-122mkII, works just as well.
http://ubuntuforums.org/showthread.php?t=1360736

I guess a problem with some of these reports of USB interfaces working is that they rarely mention if 24bit 96kHz works, or if they used 16bit 44/48kHz.

So if these (including the Zoom H4n) are equal in Linux support, which would be of higher quality?

seablade
User offline. Last seen 3 hours 19 min ago. Offline
Joined: 2007-01-22
Posts:

The problem is you are looking for USB2.0 interfaces. There was no audio 'class' for USB2 for quite some time, and as a result most of those interfaces need their own drivers, drivers which often don't exist in Linux. Some interfaces are USB2, but support USB1.1 Class Compliant operation at a lower feature set(16/48 for example). I can't comment on the Zoom or other interface though as I haven't tried them. Whatever you get make sure you have a good return policy in case it doesn't work.

At the price range you are looking at, I would probably go for the Rode NT2 over the NT1 for vocals. I wouldn't necessarily count out the Neumann or Shure, though I don't have hands on experience with either. I was told by some people I trust that the KSM series does tend to overdrive a bit to easy, which would make me lean towards the Neumann over it, but I already have an NT2 and can get some pretty decent clean results from it personally.

Seablade

colinf
colinf's picture
User offline. Last seen 4 weeks 6 days ago. Offline
Joined: 2007-11-26
Posts:

As far as USB 2.0 interfaces go, the Edirol UA-101 and UA-1000 are now completely supported for capture & playback (from Linux kernel 2.6.34-rc1), thanks to a new driver by Clemens Ladisch.

These devices have already been partially supported for several years: the only problems I experienced with my UA-1000 were occasional xruns and unpredictably varying latency, both caused by unsynchronised capture and playback streams, and both solved by the new driver.

paul
paul's picture
User offline. Last seen 28 min 14 sec ago. Offline
Joined: 2006-03-16
Posts:

@colinf: could you recommend these devices highly enough for them to be the answer to "what interface should i buy for my laptop", a question that we really don't have a good answer unless you want an RME ... .?

GMaq
GMaq's picture
User offline. Last seen 3 days 22 hours ago. Offline
Joined: 2007-12-11
Posts:

I wouldn't recommend any device that requires an "RC" Kernel unless the OP is an advanced Linux user or comfortable with Kernel compilation, however it's nice to hear that such support is coming down the pike.

I know Tascam US-122's are obsolete, but they are plentiful on ebay. In my experience they work terrific with Linux and laptops at low latency, the only caveat is a limit of 24bit 48khz. I have no experience with the "L" or mkII however there is Kernel support for "L" although I'm not certain if Alsa provides a firmware for it.

paul
paul's picture
User offline. Last seen 28 min 14 sec ago. Offline
Joined: 2006-03-16
Posts:

@GMaq: i agree, but i'm thinking ahead :)

colinf
colinf's picture
User offline. Last seen 4 weeks 6 days ago. Offline
Joined: 2007-11-26
Posts:

I don't think the UA-1000 is being made any longer: I got mine nearly five years ago, and I've been using it with Linux since then, despite the problems I described above. Now they're solved, it works perfectly well for everything I need (8 channels of live recording and some overdubs, mostly). I usually record at 44.1kHz, but 96kHz works too.

The UA-101 seems very similar, apart from having only two mic inputs rather than four, and being half the size: there are a few other minor differences, but the two devices are alike enough to share the same kernel driver.

The driver doesn't support the internal DSP mixer/router of the device: if I'm doing more than single-instrument overdubs I usually use a separate mixer for monitoring anyway, so that's not an issue for me. There's a 'Direct Monitor' control on the front that adjusts the level of all the inputs into the headphone output, which is enough for the simple case.

So I'd say the answer to the question is 'yes, I would recommend these devices' if you:

  • need a USB 2.0 device
  • have kernel 2.6.34 or newer
  • don't need to adjust the default routing
matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

I am a computer programmer and have used Linux almost exclusively for the past 4-5 years with the exception of a few road trips with my Sony Vaio P with Vista on it. I do not know C well enough to create any significant amount of new code, but I can hack a few things in it, such as making changes to hard coded arrays in ALSA drivers to recognize a new device and have it run existing code.

Fedora 13 beta has kernel 2.6.34, and I know Linux and Fedora well enough to make due with a beta. When Fedora 13 is released on May 18th (assuming that they do not change the schedule again), then you will have a Linux distribution that will work with this hardware without modifying a kernel, unless real time code needs to be added.

The Edirol UA-101 is a bit more than what I need, but at the same time, the idea of bypassing a hardware mixer and feeding more than 2 channels directly into a software mixer / recorder is very appealing to me. I noticed that I can buy the device with the Edirol name on it or a newer bundle with the Cakewalk name on it. The Edirol UA-1000 is nicer with its 2 additional mic preamps, but I prefer buying a current hardware platform.

So it looks like my purchase should be a Edirol UA-101.

I am still doing research on mics. Basically, I am looking for something that picks up natural, accurate, and detailed sound across the whole spectrum. I plan on making EQ adjustments in software for different tones as needed. The Rode NT2 looks like a good choice. I also am adding the Audio-Technica AT4040 and the Oktava Mod MJE-K47H capsule (with a Nady CM 90 body) to the list of contenders. If anyone has any experience with those, I would like some feedback.

I want to thank everyone in this thread for helping me. Although I have not used Ardour or have downloaded it yet, I plan on making a $20 donation as a way of saying thanks to everyone. You have been helpful already!

seablade
User offline. Last seen 3 hours 19 min ago. Offline
Joined: 2007-01-22
Posts:

The AT4040 is another good choice, it has a very crisp sound to it. I think I like the sound of my NT2 over the AT4040 from my memory of it, and especially the flexibility of the NT2 is in its favor as it is a multi-pattern mic, but I have nothing against the AT4040 either for most things. I haven't done a side by side comparison of those though, I ahve to trust my memory between different projects.

Seablade

wolke
User offline. Last seen 1 year 13 weeks ago. Offline
Joined: 2007-06-28
Posts:

hi,
take a look to the alesis io|2, a cheep (~130€) device. i have one, and i can say its collaborate good with my linux laptop.

the quality is really good. its a stable aluminium device with all needed inputs and outputs.
you need no software mixer, because you can make all i/o level adjustments direct on the device with real rotary s in your hand.
it works with 24 bit, 48 khz.
imo, this is enough to make good quality home recordings.

you get:
* 2 mics/line inputs with switchable 48v phantom.
* inserts for each input. ( e.g. to insert a dynamic effect )
* a gain control poti for each input with led meters.
* a phone jack with volume poti
* switchable digital inputs. select between analog OR digital inputs
* monitor mix poti. mix the signal between usb and direct in. good for monitoring without any latency
* two 6,3 mm output jacks
* midi i/o

i also have a rme multiface2. but to make fast and simple track after track records with less wiring, i mostly use the io|2.

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

Can the levels on inputs 3-8 be adjusted on the Edirol UA-101 prior to A/D conversion? I would like to be able to adjust the levels prior to A/D conversion to preserve as much of the dynamic range as possible. Maybe I could just adjust the output on the preamp going into this... It looks like the UA-1000 has hardware level control of all of the inputs, but it is no longer sold.

It looks like I can adjust all of the levels on the Alesis iO|2. I wonder what the noise floor is like with and without the built-in mic preamp. It is not 96kHz, so it is lower on my list.

The Edirol UA-25EX looks like it is higher in quality. Does anyone have any experience with it in 24-bit/96kHz? If it works with the stock kernel, then maybe it can be one of the USB devices to recommend.
http://alsa.opensrc.org/index.php/Edirol_UA-25EX#Getting_Advanced_mode_to_work

I ordered a larger SSD (drive) and more memory for my fanless PC (Logisys LG-PCO635F) today. I am on Fedora 8 since the et131x driver is crap; literally: It is in the Linux staging tree and Fedora does not provide compiled drivers for it. Assuming that I get that working, I will make a purchase. At the moment, I am leaning towards the Edirol UA-25EX since I can probably effectively use all of its inputs and it seems to be more professional, but I will only order it once I get my system working on a new kernel so that I can focus my return window on getting the the Edirol UA-25EX to work.

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

I just found the http://ardour.org/realfaq#audioio page. I found it via a forum post http://ardour.org/node/3466, which I should have found before. For the benefit of others, could a FAQ link be featured more predominantly on this site?

The FAQ page mentions that RME and M-Audio have supported Linux by offering cooperation in the development of Linux drivers, but I do not see a USB 2.0 product by either of them that does what I need. I would prefer to support a company that supports Linux, even if their product is a little more than what I need at the moment. Maybe I should just get a 2 input USB interface that I need, and buy one of their PCI interfaces when I need it and have a desktop to put it in.

I also found http://www.linuxstudiopro.com/, but the Edirol UA-25EX is not listed there. I guess that it is out of date.

If I get my own mic preamp and drop the requirement for XLR and a preamp on the USB 2.0 interface, do I get more hardware to choose from?

At the moment, I am on the fence between the Edirol UA-25EX and Edirol UA-101. I would prefer the UA-101 if I knew that the attenuator for inputs 3-8 worked under Linux.

PaulRH
User offline. Last seen 5 days 9 hours ago. Offline
Joined: 2010-04-18
Posts:

If firewire is a option, then you could consider the Echo AudioFire range. The AudioFire8 is described as fully supported by the FFADO team (www.ffado.org) and the Echo company has evidently been cooperative with the FFADO efforts.

I have the AudioFire 8 - 8 analogue inputs, 24/96. Two of the inputs are through a combined XLR / phone connector, with preamp and phantom. http://www.echoaudio.com/Products/FireWire/AudioFire8/index.php

(As I understand it, the very most recent versions of the AF8 _may_ need to have their device ID's added to the ffado device definitions. I think this is fairly trivial to do. Follow links under Device Support at the ffado site).

I know this is not what you asked - just trying to be helpful!

PaulH

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

@PaulH: Thanks. My system does not have FireWire, so I cannot use it, but that is good to know if I have the opportunity to buy or recommend an interface for a system that does have FireWire.

My SSD and memory upgrade should be here by 4/26/2010. When I get Fedora 13 + kmod-staging installed and working, I will try the Edirol UA-101 unless someone states that the attenuators for inputs 3-8 cannot be adjusted under Linux.

colinf
colinf's picture
User offline. Last seen 4 weeks 6 days ago. Offline
Joined: 2007-11-26
Posts:

As far as I can see, inputs 3-8 of the UA-101 are line level only: the only gain adjustments on them are DIP switches on the rear panel to switch them (in pairs) between +4dBu (professional) and -10dBV (consumer) levels. If whatever you want to plug in there doesn't output at one or other of those levels you will need a preamp or mixer of some sort.

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

@colinf Thanks for the reply.

So from a quality perspective, as long as I have a good preamp, then fixed gain should not be an issue.

For what it is worth, for the mics, I decided to go with a pair of Rode NT1a modded by Michael Joly (OktavaMod MJE-K47):
http://www.oktavamodshop.com/product_info.php?cPath=1_46&products_id=145
I hope to look forward to a low noise floor mic with a more open headbasket.

mihai007
mihai007's picture
User offline. Last seen 3 years 51 weeks ago. Offline
Joined: 2010-04-23
Posts:

Hello.
I just brought an UA 25EX and use it on Ubuntu 9.10

Just say what you need and I can test it...

It worked out of the box, no configuration needed.
The advanced button (16bit - 24bit switch) works as long as you re-plug the usb cable to get the new configuration. Same with the samplerate.
using aplay -v I managed to play a 24/96 wav file without problems.
Recording works in 24bit also (jack says 24bit)

Jack worked without any problems/special configuration, I also had an M-Audio Fast Track usb ( http://www.m-audio.com/products/en_us/FastTrack.html ) worked out of the box in 16bit, but jack gave errors when trying to start it so I returned and changed with the ua-25ex.

Latency in Ardour (upper right corner) says 11ms in normal kernel and I did not had any xruns.

the exact product I have is: http://www.cakewalk.com/products/hardware/default.aspx?Prod=UA-25EX

I'm really new in this music stuff so if you need any particular test for this unit I will be happy to do it.

TheAwesomeking
User offline. Last seen 4 years 19 hours ago. Offline
Joined: 2009-02-09
Posts:

That looks perfect to what I need.
Can you record two channels at a time only? or can you plug in via lightpipe at the back and add another 8 channels.

I would love this unit so much if I could plug this ( http://www.artproaudio.com/products.asp?type=86&cat=9&id=156 ) into it and get a total of 10 channels recording at 44.1 at the same time.

Thats all I would ever need.
Those pre-amps are awesome for drums and such.

Also, does anyone know if the RME Babyface ( http://www.rme-audio.de/download/sheets/babyface_e.pdf ) works.
Because if that does, that solves all my audio problems period.

Or this guy
The RME Fireface UC
( http://www.rme-audio.de/en_products_fireface_uc.php )

EDIT: ok after some searching it doesn't seem the RME USB stuff will work.
Is there any place I can donate money to having drivers made so they will?
I'm done with using apple products and windows OS's.
I would rather put my money into projects I can feel good about.
Thanks.

faberman
User offline. Last seen 2 years 43 weeks ago. Offline
Joined: 2008-07-29
Posts:

Depending on where the effects are implemented (driver or FPGA), it is very unlikely that the driver source will be disclosed to create a GPL driver.

In any case, I strongly advise NOT to use USB for reliable audio.

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

@mihai007

Thanks for the input. I am glad to hear that it works. After reading the manual for that product, the reset is normal for switching between USB 1.1 and USB 2.0 for other operating systems.

@TheAwesomeking

The UA-101 can record 10 inputs (9 and 10 are IEC 60958, S/PDIF) at 96 kHz or below and the UA-25EX only works with 2. Neither supports Lightpipe/ADAT.

I have not found any RME USB interface that works either. In fact, the Edirol UA-101, Edirol UA-25EX, and Zoom H4n are the only analog USB 2.0 interfaces that works well with very recent Linux kernels that I know of.

The Echo AudioFire 8 is a good FireWire interface and the company has been cooperative to Linux developers. If I had the option of using FireWire, I would choose this interface to support the Linux friendly companies. See the "Thanks go out to the vendors" paragraph under "FFADO 2.0.0 Released!" at http://www.ffado.org/ . Edirol is listed there too, so I am comfortable with using their USB interface, even though I am unsure how helpful they have been with their USB products.

In my opinion, FireWire will be replaced with USB 3.0 and Light Peak will shortly replace USB 3.0, so I would not buy more than what you need for more than 4 years or so.

@faberman

I am aware that the Firewire interface is better, but I have a small fanless setup that only has USB. I do not need live software monitoring, so I can just increase the buffer size for increased latency and more reliable audio.

@all

For the three Linux compatible USB 2.0 interfaces that I am aware of, I made some notes to compare them. I release the following text to the public domain if anyone wants to use it or extend it for anything.

UA-101:
There are two versions of this model with a slight difference: "EDIROL" and "Cakewalk by Roland." The newer Cakewalk version removes the USB 1.1 switch and operates in USB 2.0 only. The Edirol version can be switched to USB 1.1 for use without special drivers on almost any modern operating system. Using USB 1.1, only two channels at 44.1 or 48 kHz can be used.

The Hi-z switch is good for input 2's TRS connector only.

192 kHz is for up to 6 analog inputs and outputs (full duplex) only. The digital connectors are only good for up to 96 kHz.

With 8 analog outputs, you could build a 7.1 channel surround sound system if you wanted to and your software allowed you to.

The software mixer can be bypassed using buttons on the front. The mixer settings can also be cleared by using a factory reset procedure. The default monitor routing listens to all inputs.

Input S/N: 101 dB Output: 107 dB

The phantom power is DC 48V, 20mA Max.

Can be powered by 9V DC (1 A draw)

The manual is located here:
http://www.roland.com/products/en/_support/om.cfm?PRODUCT=UA-101&iRcId=1811345&dsp=1

UA-25EX:
The Edirol UA-25EX only has 2 analog inputs and outputs and will max out at 96 kHz. The UA-25EX has three features that the UA-101 does not have:

  • Built-in analog compressor
  • Ground lift (Disconnects ground sleeve of the output. In theory, a cable can be built to serve this function as well)
  • USB powered (480 mA draw)

The phantom power supplies less current than the UA-101: 48 V DC, 8 mA. This may influence the sound of your mic unless you use an external preamp.

Digital input mode is not full duplex.

Also, the Cakewalk branded version of the UA-25EX retains the ability to operate in USB 1.1 mode, unlike the UA-101 where only the Edirol brand can do that. The USB 1.1 mode does not work with 48 kHz unlike the UA-101.

Zoom H4n:
Can record without a computer
Runs from 5 volts DC, internal battery, or USB

faberman
User offline. Last seen 2 years 43 weeks ago. Offline
Joined: 2008-07-29
Posts:

I don't see FireWire as an alternative. It is quickly dying out, and it has its own performance issues. At the moment the only way to get reliable performance without a high load are PCI(e) cards.

mihai007
mihai007's picture
User offline. Last seen 3 years 51 weeks ago. Offline
Joined: 2010-04-23
Posts:

@matt_fedora I will possibly use some of your input about ua-25ex on my blog when I get some time to write a review about it, I will notify when it's done, until then I can only let you with the review I made of a great guitar:
http://openmindedbrain.info/24/04/2010/baton-rouge-r14ce-black/

matt_fedora
User offline. Last seen 3 years 50 weeks ago. Offline
Joined: 2010-04-14
Posts:

I got Fedora 13 working with kernel 2.6.34. Because of the staging driver for my network card not being available in RPMForge, I had to built my own kernel. I documented that here, although hopefully no one else will need to use this:
http://pastebin.com/ujy8tkt2

Both of my Evoluent VerticalMouse mice had USB errors with the newer kernel. There would always be "device descriptor read/8, error -84" errors in /var/log/messages. What was odd was that the mouse would work fine until KDE loaded past a certain point. Anyway, I plugged in a different USB mouse and I just now found a potential workaround for the other mouse.

With my system running fine (for now), I will place the order for the Edirol UA-101 and test it when it gets here.

@mihai007 Thanks. My mics are here (I ordered two). A friend of mine is not satisfied with the mic setup for his guitar. I am going to let him borrow a mic to test it out.

triplesquarednine
User offline. Last seen 3 years 39 weeks ago. Offline
Joined: 2008-03-22
Posts:

The mkII do not work. There was a ptach that went upstream that added the identifiers, os that as USB 2.0 it is seen by the kernel, however, the driver doesn't work with them. The audio "stream" ends up being broken. it is handled differnetly in these MKII. It could be made to work, but would require some reverse-engineering.

I had one and then ditched it for a Edirol FA-101 (firewire) with 10in/out, preamps, etc.

The only hassle was that i needed to by a firewire card for my laptop(as it only had the small firewire connection).

I can report that if using FFADO, this card is fully supported, and viable for a laptop.
I am getting a modest 1ms of latency, running lots of VSTi/VSTs and Ardour. Sometimes i record several
tracks at once both live and synthesized. works well.

So while HDSP, is probably the best option. there are others, just do some homework before you purchase.

a side note : A great MIDI controller to use with Linux is the AKAI MPK series. Although, it's software doesn't run on the platform.
It does provide 3 seperate midi channels, and uses the snd-usb-audio. it has transport controls, faders, and knobs they work wonderfully with Ardour. There are 8 of each (knobs,sliders,LED-buttons) with three Banks. this means 76 controls that you can assign. this is very useful for automation in Ardour and/or controlling Virtual instruments.

ninez

triplesquarednine
User offline. Last seen 3 years 39 weeks ago. Offline
Joined: 2008-03-22
Posts:

I use Firewire, i don't regret my choice either.

trying to record using USB is a waste of time, especially on a laptop, where often your USB 2.0 hub is on a shared "Interrupt" (which will cause problems), and that's if your audio interface is supported in usb2.0. if it's USB 1.1 - which is an even bigger waste of time, not suitable for multitrack recording. Then there is PCI(e) cards, othen very expensive. or they require both the card $$$ and a breakout box $$$. niether is usually cheap.

I got a deal on my FA-101. cost me almost nothing, and performs very well. I never get xruns, unless it is a wineasio VST
plugin. the card is in FFADO's hardware list, took no effort to setup. Has it's own IRQ. It's glitchy what-so-ever.

regardless of whether or not 5years from now firewire may be replaced - then how long will it be before we have support for these new interfaces in linux????

I did have to buy a firewire card (for 50bucks), but Firewire is hardly dead. It has been the only solution for me, on my laptop and
works quite well.

ninez

christophski
christophski's picture
User offline. Last seen 6 hours 25 min ago. Offline
Joined: 2009-04-22
Posts:

@Colinf:
Could you tell me how you got your UA-1000 working? I just purchased one and am having trouble getting it to work properly. Under the 2.6.33-rt kernel, i could get it running with pulseaudio, but it was very distorted and jackd would not start with it. I am now trying a 2.6.35 kernel (not rt) and it does not even appear in pulseaudio or Jack Control though it shows up in lsusb.

colinf
colinf's picture
User offline. Last seen 4 weeks 6 days ago. Offline
Joined: 2007-11-26
Posts:

@christophski:

Are you compiling your own kernel?

I last tried an -rt kernel a few years ago, but it didn't seem to work any better for me, so I've not bothered with it since. A vanilla kernel.org kernel compiled with CONFIG_PREEMPT=y has always been good enough for me for latencies down to 11.6 msec or so.

Anyway, my UA-1000 has worked OK since about kernel 2.6.13, but if you're using 2.6.34 or later you'll want to use the new driver for the UA-101/UA-1000 (CONFIG_SND_USB_UA101=m), since it solves the problem of the playback and capture drifting out of sync leading to randomly-varying latency and xruns.

christophski
christophski's picture
User offline. Last seen 6 hours 25 min ago. Offline
Joined: 2009-04-22
Posts:

Oh, no, I've never compiled my own kernel. Maybe it's about time I try I suppose. Is there no way to do it without compiling myself?

Edit: The Edirol UA1000 sort of works under 2.6.33 but it is extremely distorted, will the new drivers fix that? I've tried it under windows and the signal was nice and clean.

Also, do you have any custom configuration files to get it working? or does it just work straight off?

colinf
colinf's picture
User offline. Last seen 4 weeks 6 days ago. Offline
Joined: 2007-11-26
Posts:

@christophski:

You shouldn't need to compile your own kernel if your distribution has got it right. What distro are you using?

I don't know whether the new driver will fix your distortion problem, but it can't hurt to try. The module is called snd_ua101: it should be loaded automatically when you connect the UA-1000. lsmod will show you whether it really is loaded.

I don't have to use any custom configuration specifically for the UA-1000.