Could you try kernel #6 again? I think it is working now with 192k
playback.
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, and that this might
stop the hub from working properly (it's powered, yes?). I'm not very
technical with this kind of thing, as you might have guessed!
Yep that's another good reason for doing it that way round. Just
wanted to reasure you it worked...
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to listening
more...
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that the Lakewest code will support more data sent
less frequently, but this then causes the buffer fill variation you see
(or at least the bar graph goes up and down a lot). Dominik seemed
happy with the hack though in terms of his code would work with it.
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a couple of people test with normal and usb dacs.
[The new applet will automatically install this kernel to make it
simpler for people to install hopefully making it several less steps.
I want to make sure the kernel is ok first though.]
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indypants;698778 Wrote:
Just tried kernel#6 with the MDAC and CDQ and I'm not getting anything
from the USB. 192K is working OK from optical and coax though.
Reloaded kernel#5 and everything is working again.
With the hub? It should be the same - I need to look at it again :(
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indypants;698597 Wrote:
I used this one http://electronicsshop.dk/?id=1038
Same isolator I have and I think you our ordering the Hama hub - I can
confirm this combination is working for me. As John says, connect the
hub to the player and the isolator between it and the dac.
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gh0st;698666 Wrote:
another field report...
setup:
MDAC (latest beta firmware)
SBT with TT3.0
source material 16/44.1 24/96 flac and 320k spotify (thanks Triode,
highly superior to the official plugin :)
results:
Kernel #1: works fine provided the buffer in TT3.0 is set to 5000. I
been some debate on
pink fish about whether they are needed - but some people have reported
improvements.
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is considered harmful
:)). It will mean you need to run 7.8 builds though.
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Triode;697101 Wrote:
I've tested again, 176/192 is broken on the internal dac (wrong speed),
but I believe works on the spdif output [which is what I was testing
with mostly and was my real target for this]. Please constrain testing
to the spdif output at present.
Looks like 176/192
TT does when it bypasses the plug
layer). In the case of SB internal devices they don't support 32k (or
don't look to have been configured for it), but some usb dacs may.
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on the spdif output [which is what I was testing
with mostly and was my real target for this]. Please constrain testing
to the spdif output at present.
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then there is a good chance it
should work with kernels 3 onwards on SB Touch. Windows does not
include uac 2 drivers, but as long as the dac works with the native
driver for linux then there is a good chance it will work (can't
promise though)
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MWelschenbach;696722 Wrote:
Triode, what exactly do you mean by reset the output device?
Go into the usb dac menu and set the output device back to default.
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ste1;696725 Wrote:
Hi Triode,
I have tried this with a Musical Fidelity V-Dac 2. This is an asynch
dac however I do not know if it is USB 1 or 2.
http://www.musicalfidelity.com/products/V-Series/V-PSU/v-psu.asp
I followed the instructions on page 1 of this thread last night and
both
menu for the dac?
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speed hub though as the touch has some hardware limitations - can
you try to use one and see?
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alters the frequency by
100Hz or more between the go faster and go slower message. Your dac
appears do adjust on a more fine grain manner. However the bit that
matters is that it is updating.
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back on the internal dac. So this is a
definate possiblity at present]
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the stream. I
need to find a way to put back resampling on the server for this case.
(note 3) note by playing through the output separately, support of
sampling rates below 44.1 is removed, this may impact some internet
radio streams.
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the request from the dac
and always using a more frequent interval to poll for frequency. I
will look at next weekend and try to do 1) as it seems more general -
please look out for an update.
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(i.e. one
at a time).
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reboot
when you updated this? (otherwise it was possibly not valid json?)
Try setting the alsaPlaybackDevice=hw:CARD=DAC and alsaSampleSize=24
for your dac.
The plugin should do this automatically - but lets find our what your
dac needs first.
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Likely that it needs a more specific card name - can you try aplay -l
from the command line and see what it lists as the options for devices?
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are you using - try with kernel 4 + the manual
modifications.
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it wrong there - can you narrow down
which hardware params don't work?
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:824: cannot submit syncpipe for urb 2, error -27:
internal error
Do you get the same with kernel 1 or 2?
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jackocleebrown;696409 Wrote:
lsusb -v on my laptop returns:
Thanks - will look at this and get back to you.
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here.
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indicate async is working correctly.
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Mark - could you post the dmesg for when the audio stream is started?
(I'm not sure I enabled debug on that kernel, but would be useful to
see what it records). Do you know if the dac only supports S32_LE
format over uac 2?
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the
binary to support S32_LE and let you have it to validate.
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RadBadMark;695955 Wrote:
Triode - thanks for the effort from you and John with this!
I have a couple of DACs that are class 2 capable - I'll try and give it
a test either tonight or over the weekend. Is there anything specific
that I can feedback that would be particularly useful? Are you
MWelschenbach;695327 Wrote:
Is someone here who tried the kernels provided by Triode with Eximus
DP1, or with any other USB audio class 2 dac?
I don't think anyone has posted about tests using an audio class 2 dac
yet - I'm awaiting with interest. [I was also holding off doing any
more
full speed port then that will work, but I suspect
this is not the case. In summary - I'm hopeful we can make it work,
but at present with no test cases can't be sure.
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trialing it with a high speed
device.
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have one install with an
option to support the no hub case at 44/48k for dacs which work with
it.
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gaunaik;695027 Wrote:
M-DAC and Kernal *3 seems to work with 96/24 without the use of a hub.
This has already been reported by another tester.
Good news indeed or is is the MDAC being fooled into thinking this is
the case? Music plays flawlessly.
Thanks for your efforts Triode and John
DP 777.
Did you do any of these tests using the SBT USB output (as discussed on
this thread). If so can you confirm so we can record which dacs are
working. Very interested if any of these dacs are usb audio class 2.
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realmadrid;693809 Wrote:
Hi Triode:
Look at:
http://www.qnktc.com/ab_11/
Works very well on Vortexbox
Regards
Juan
So if you have one - could you try it on Touch with my kernel and let
me know how you get on? I'm not looking to buy one, I was hoping
people here would have usb
, but if it works then I don't see any
reason for needing a hub as long as you only want to go to 48k.
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at this point.
John - the EMU-0404 code is definately there. Could you try with
kernel #4, this is the same code but with a couple of extra printks
added in the relavent quirk section and with the
CONFIG_SND_VERBOSE_PRINTK kernel option. What's the dmesg say?
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? (Ideally
also try the new #3 kernel with the dac too so I know it supports these
dacs)
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, but I've included what looked to be the
relavent patches]
As with kernel #2, if you have an async usb 1 device then you will need
an external hub.
Very interested in test results.
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MWelschenbach;692575 Wrote:
Is it possible to install the new kernel over kernel #2?
Yes - just go to the Kernel Updater menu and select the new one.
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not a
consitent view across other cases.
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avoids getting to the low power state could
be expected to have an impact which may be positive... (or maybe not)
However I did reason it could have an impact one way or another.
Clearly in a perfect world it would have no impact.
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cases of A and D. I would say from the existing data they do not. The
inference from this would be that cpu load does not have a significant
bearing on the audio quality, but I wonder whether now you know the
test cases whether people are able to hear any difference
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some
interest in taking the test!
I should not have used the letters A B in two places... When Test
Case A and Test Case B are presented they are randomly chosen from
the four options [which are labled A, B, C, D but they do not
correspond]
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overnight too? It definately won't support
this...
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, but a better approach would be to be
able to open the audio device when a new dac is detected. This is not
possible at present.
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also possible to do it
with the toolbox installed?
Should be able to do the tests with it installed or not, though clearly
anything turning off the screen will impact the ability to run the
tests...
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Triode's
with kernel #2 and the default kernel is the need for an
external hub to may async work as the silicon inside touch appears to
have a limitation which the hub fixes.
[I would like to get the 2 changes in kernel #2 into the standard
firmware, but am awaiting feedback from logitech]
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if any
more results for test 2 show any significant results.
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.
Maybe a test of kernel #1 without hub vs kernel #2 with hub, but if the
hub works then this is the case where the dac is working as intended.
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behause it won't stir after a
couple of hours in standby mode?
I've not experienced this - was the touch still connected to the server
in this case? (Standby mode really only means a different display
screen, so it would normally look the same from the server perspective)
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- i.e. high speed. I don't think the
current kernels will support that. If it can be forced to operate as a
usb 1 dac then I suspect it will work. Otherwise it will probably need
some more kernel updates.
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available at present are unlikely to work.
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touch to some extend - you will still get the same bits
out of the output.
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can detect the
difference with buffer and priority tuning as its trying to
validate/dispel a theory related to this.)
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.
And as far as jitter - the theory with async usb is that the clock is
generated in the dac. As JohnW would say first order impact of jitter
is removed, but there's still scope for 2nd order things to mean
noise/RF couples from the SBT to the dac. You could try a usb
issolator to reduce this.
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TheOctavist;690553 Wrote:
0 0 0
No supprise for that...
0, -1, 1, 0
Interesting - if you repeat the test do you reenforce the score? (i.e.
if you do it a second time or select the option to run more tests do the
same ones come out as preferred?)
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the device with settings which work - else you get
the problem you have seen.
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Mnyb;690419 Wrote:
Play music of you own choice, if I understand triode here he have
changed something in the sound system settings in the Touch what it is
you are not suposed to know just try with whatever music you please :)
Exactly - you should play whatever music you like and see if you
to try now.
Note - you are probably likely to need an external high speed hub which
will cost 10 GBP. (See explination on experiment thread)
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in a specific order.
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spollock;689998 Wrote:
Using the triode Spotify plugin, is there a way to make use of Library
Artists and Albums? They are all empty.
Thanks,
Steve
The library feature only shows what you store to the library from the
context menus (its not the same library which spotify use which
, glitches, and remote host resetting the
connection.
it's working perfectly for me.
If you use the Radio 3 menu in the BBC Radio applet or BBCiPlayer
plugin it should use this url anyway if you have aac streams selected.
This should give you 320k with live text.
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(most 24 bit USB DACs, 3 bytes)
BTW the streamer II works fine with the normal kernel, just install the
USB Audio applet.
John S.
I've updated the Usb Audio Output applet to hopefully parse these
values and set the right bitdepth for 16 bit dacs. Please try and
report back.
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at the mercy of the congestion at the spotify
end. I don't see any sign of spotify stopping support for hardware
players as it always generates revenue for them.
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the default
kernel. Its likely with dacs that don't also use HID that the default
kernel will work in place of kernel #2, they will get a divide by 0
backtrace in dmesg but I suspect they will work. Other dacs need one
of the other changes I've make for kernel #2
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FredNowak;688699 Wrote:
I installed Kernal #2 and thought I would see what would happen without
a hub. It is so good I have not bothered to hook up a hub. I have not
heard any clicks or pops and will post again if they start.
Many thanks, Triode. I must also thank John Swenson for getting
size and output device name then reboot?
The USB Audio Applet is responsble for setting this - if you can find
the right things to parse out of /proc/asound/ to get the settings then
I will uptdate.
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but they are so far apart you don't
notice... If you had a hub in the way then I would expect the
momentary frequency to update.
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. Interested in others trying.
Note the hub must be a high speed USB 2.0 hub. (So the very cheapest
ones around which are 1.1 are no good, but there are lots of cheap high
speed usb 2.0 ones around)
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to Dominik of Lakewest for suggesting the hub approach.
Please test and post here if these work better for you
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to the instructions to hopefully make this clearer, but it would
be good to understand what you saw in more detail..
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via the Kernel Updater applet.
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JohnSwenson;674869 Wrote:
I have a little bit of news, Triode from these forums is now looking
into the issues as well, he's looking into the inner workings of the
low level USB driver which is where the issues seem to be coming from.
Say tuned this may eventually get resolved.
John S
, plugin tab at the bottom of the
page. Note also that the url text is compressed by this forum it
should be:
Code:
http://triodeapplets.googlecode.com/svn/trunk/usbtestrepo.xml
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reports first though.
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of the nominal frequency.
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That doesn't look right - could you capture the entire dmesg and post
here or mail to me?
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/trunk/squeezeos/src/imx35/
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about getting one and looking at
the touch code. How frequent are the dropouts at present?
[John did you ever just build the image with a newer alsa - I was
thinking this may work for a usb only case?]
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several
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for this?
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it, but would be
pleased for any feedback)
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recommending applets
they see as recommended... Any takers?
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scp and sftp are different - use scp as this should be available.
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scp and sftp are different - use scp as this should be available.
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low power cpu at the server end, the
current method is always going to be an approximation. I hope it does
provide some useful information though...
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how to
dump down the interface on this to make it less geeky. If it didn't
have any options but just showed a single display of how fast it could
go - similar to a broadband speed checker, would this be useful? Is
the history graph currently shown also useful?
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now.
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