I have been successful in getting the MKII and mic on my new Laptop up and running. The computer sounds and even youtube work via the MKII. But when I open and set up Focus Fidelity Impala measuring software it does not see the MKII. its the default audio device in windows. everything else sees it. Am I missing a setting? So close to doing my room tune but cannot get by this. Will have to call tomorrow.
@tedsmith i think we have a similar issue with these guys on the new USB module you talked about. Input in DDC and it now works. Their software does. Not see the DAC.
I went trough tune with focus fidelity with DDC. On sweeps it gave some timing error. I could not get past. I hit ok and moved on with all 6 sweeps. Yuch tune lost all soundstage. I need @tedsmith to let me know whatâs new with dac usb input so I can communicate with software vendor.
The DS Mk II uses a different USB chip than the DS. Itâs a ComTrue chip instead of an XMOS chip. Tho USB lets you query for the device capabilities (e.g. supported sample rates, sample widths, âŠ) some programs seem to use a table of supported USB devices instead of querying the USB device and the Mk II isnât in their tables.
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Thanks Ted I asked them that. And they replied:
"Impala uses the windows audio programming interface and queries the USB audio devices through that, it doesnât store a table of supported devices.
As I mentioned it does require that the device and its driver support event driven mode.
If it doesnât support event driven mode then Impala can also use the ASIO professional audio interface, can you ask PS Audio if they have an ASIO driver for the DS Mk II?
I havenât heard of the ComTrue interface before, the XMOS ones always worked really well with the correct driver installed."
Does that make sense to you?
PS Audio does support an ASIO driver, itâs installed as a part of the USB driver package.
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any idea what event driven mode is?
USB WASAPI drivers can operate in the old âpushâ mode or the newer âeventâ mode. Some WASAPI drivers only work well with âpushâ mode and others with âeventâ mode.
ASIO is a different kind of driver all together - if it works itâs probably the preferred USB driver - with it you donât have to worry about setting up things like Windowâs âexclusiveâ mode or that the Windows volume control and mixer will corrupt your audio, etc.
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Which way do the PSAudio drivers work? Push or Event?
They are suggesting a spdif converter
Douk Audio U2 XMOS XU208 Digital Interface, USB to TOSLINK Coaxial/Optical Audio Adapter, for DAC/Preamp/Amplifier, Support PCM & DSD64 https://a.co/d/1OSOH7f
Youâll have to ask PS Audio support about specific USB questions.
Since they support ASIO and PS Audio supports ASIO I suggest you at least try ASIO. Then âeventâ vs. âpushâ doesnât matter.
If a maximum sample rate of 192k and a maximum DSD rate of DSD64 is acceptable then a USB to TOSLink, S/PDIF and/or AES3 converter is an easy way to not use the Mk IIâs USB input.
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I tried the ASIO driver and it does not recognize the MKII. 
Did you power cycle the MKII after you selected ASIO?
I did not. Should that matter? That driver the web says itâs not for this dac. The driver itself would not install due to it could not find the dac. USB was plugged right into app.
Still working on getting this work with DDC in the middle. Some timing issues. Could be my 20â cable is too long for the USB transmission.
Either way @Paul there is def. something up with the usb driver that this piece of software cannot lock in on it. Not sure if that something your team could help with? I know I am not the only one to use it. The USB driver works with windows, but not the query from this software does not find it. Either they need to change how they look due to not being XMOS (@tedsmith correct me if that is not the right thing to say) or its not being exposed properly somehow.
20â is way too long for USB, the limit is 15â between devices and/or devices and hubs. If you are using an âaudiophileâ USB cable, as an experiment please try a cheapo USB certified cable. If it works then the audiophile cable is likely out of spec. 20â is out of spec unless it had an active repeater somewhere in the middle. The problem with non-certified USB cables is that they can work one day and not the next, they can work with some hubs but not others, they can work with some USB drivers and not others, they can work with some OSâs but not others⊠With cables that are too long Iâve even had them work until the tempurature changes a little. The 15â length and the cable inductance and capacitance affect the time it takes for a signal to propagate. If the cable is too long, is out of inductance and capacitance spec, etc. the signal might not get to the hub or device and back in time causing errors.
The USB chip and code in the Mk II doesnât know whatâs trying to talk to it and acts the same either way. It certainly is possible that some assumption is being made by accident about what the Mk II can or canât do.
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Good to know. I have some shorter ones. vanilla cables. For this effort that is fine.
Have you seen anything like this?
WEme USB 2.0 Extender to RJ45 Over Cat5E,6,7 Connection up to 100 Meter 328 Ft Ethernet Extention Cable Type A Male to A Female with 5V2A Power Adapter https://a.co/d/j9XqKSP
These kind of extenders get around the time limit by pretending to be two or three hubs in a row, that gives them two or three 15â times and also the specâed time thru a hub to get thru their electronics and their cable. I havenât seen anything this cheap before that supported USB 2.0 High speed and did isochronous transfers. But this listing explicitly states that it supports cameras so it has a chance of working for audio.
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Thanks for the tips. I went with cheapo wires I had hanging around. It worked. But still only via stage Matrix DDC. USB directly to the MKII still did not recognize.
Just in case Iâm missing something: When you say âUSB directly to the MKII still did not recognize.â, USB directly from what? A PC running Windows or another piece of hardware?
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