![]() The SQ-5 would stream audio from Windows applications fine until I used my DAW (and thus started the ASIO driver). In my case (SQ-5 on a Windows 10 computer) I found that there was a conflict between the ASIO drivers and Windows media. While I can make other arrangements to feed audio from the PC into the mixer, it would be nice to have full support for USB mapping with clean audio.Īfter months of trial and error I think I found a work around for my particular issue with USB digital noise. I’m wondering if this appears to be the same issue as on the Qu-series, or if this is something different. |_ Port 7: Dev 8, If 5, Class=Audio, Driver=snd-usb-audio, 480M |_ Port 7: Dev 8, If 4, Class=Audio, Driver=snd-usb-audio, 480M ![]() |_ Port 7: Dev 8, If 3, Class=Audio, Driver=snd-usb-audio, 480M |_ Port 7: Dev 8, If 2, Class=Audio, Driver=snd-usb-audio, 480M |_ Port 7: Dev 8, If 1, Class=Audio, Driver=snd-usb-audio, 480M |_ Port 7: Dev 8, If 0, Class=(Defined at Interface level), Driver=, 480M The tree of the SQ-5 USB layout looks like this: CPU usage is low, and locking the CPU frequency governor to the chip’s max rated clock-rate have no effect. The PC in question runs Ubuntu 17.10, although I’ve experienced this same issue on my laptop with Ubuntu 16.04 as well (there using both USB 2 & USB 3 ports.) I’ve attached the detailed lsusb output for the SQ-5 as well, if it’s of any use if additional information would help, feel free to inquire. This accurately reflects what I hear when monitoring the input channel directly from the mixer as well. ![]() The attached file was recorded by mapping the USB input channel to an Aux send routed as a mix back out the USB interface and recording it into another track in Ardour. The issue can be heard at 5-8 seconds, and again at 13-18 seconds into the file. I am running the latest firmware on the mixer, 1.2.2. The majority of the time the audio is clean, but I’ll get the distortions that seem to be described for the Qu-series on the audio sent from the PC into the SQ-5. The attached ogg mp3 file shows the result I have when connecting a PC application (Ardour 5.12.0) to the SQ-5 over the USB-B protocol. I saw the sticky for the Qu-series digital noise topic, but didn’t see an indication that this applied to the SQ-series as well, hence the separate topic. (2nd attempt to post as the edit appeared to leave the thread completely blank.)
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