On Tue, 10 Oct 2017 20:14:37 +0200
Alexander Leidinger <alexan...@leidinger.net> wrote:
> Quoting Hans Petter Selasky <h...@selasky.org> (from Mon, 9 Oct 2017 22:38:32
> > On 10/09/17 21:47, Alexander Leidinger wrote:
> >>> If you are using multi channel audio equipment with 24-bits, try >>> to
> >>> avoid FULL-speed ones!
> I have now tried every single USB connector, external and internal. None of
> them attaches to the EHCI bus. :( The only connector which Iwas not able to
> test is labeled "USB SSD" and has a smaller pin-gridthan those other internal
> usb-PIN-connectors with cables to the frontof the case.
> I think I will now buy a PCIe USB3.0 card. Anything I should avoid? Anything
> you recommend? I found this:
> which seems to have some VLI chip on it. I haven't found anything usable in
> terms of vendor/product ID or such.
> 4 ports may be enough, for an external USB backup HD, the soundcard, and a
> video device, but for ~10 EUR difference...
I've been using the CSL B00F9XGPTI XHCI 4-port card which works. I
bought it on amazon.de, but I don't know whether it's still available.
> >> Well... first I want to get the 2 channel 16bit case working... >> then I
> >> will have a look at extending this to 5.1 (most probably >> 16bit, that's
> >> enough to watch action movies).
> > Hi,
> > Some more ideas:
> > 2 channel 16 bit will only work if you turn off bitperfect. The
> I activated bitperfect as a test because I got the distortion and was hoping
> to either gain some lower-latency or at least get rid of somelayers of code
> to rule out issues there.
> > lowest number of channels the device exports is 4 for playback. That> means
> > the kernel will re-format 2 channels to 4 channels always and> that is done
> > by the PCM feeder. You'll need to check that there is a> filter which
> > handle that.
> > You might want to install virtual_oss from ports to handle this > device
> > properly.
> In the end I want 5.1 output, so if the bus speed doesn't give me this: no
> need to waste our time with the slow ports.
> http://www.Leidinger.net alexan...@leidinger.net: PGP 0x8F31830F9F2772BF
> http://www.FreeBSD.org netch...@freebsd.org : PGP 0x8F31830F9F2772BF
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