1 Topic by ericseaberg (edited by ericseaberg 2022-09-08 16:28:00)

  • From: San Diego, CA
  • Registered: 2017-09-18
  • Posts: 79

Topic: MADIface USB bandwidth... does it change?

I've got a TV remote project coming up and we've purchased 4-MADIface USB units to feed two computers with 128-IO each.  I doubt that I'll need more than 96-IO total and am wondering if the USB bandwidth changes if only using 48-channels per unit as opposed to 64-channels, or is the driver using the full 480Mb speed of USB-2 regardless of the channel count?

I'd love to option to lower CPU usage if it changes at all.


Thanks...

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Eric Seaberg • San Diego, CA • USA
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  • ramses
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  • Registered: 2012-10-14
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Re: MADIface USB bandwidth... does it change?

USB2 supports up to 70ch according to RME. Nothing to worry about.

BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14
  • From: San Diego, CA
  • Registered: 2017-09-18
  • Posts: 79

Re: MADIface USB bandwidth... does it change?

Thanks for the reply, and I am connecting each MADIface to a separate USB buss on the Macs... so far no issues.  Really just wondered if bandwidth changed with stream count.


Thanks again

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Eric Seaberg • San Diego, CA • USA
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  • ramses
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Re: MADIface USB bandwidth... does it change?

If you connect two per USB to one computer, then look that the MADIface USB are behind two different USB controllers.

BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14
  • Jeff
  • Jeff
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Re: MADIface USB bandwidth... does it change?

ericseaberg wrote:

Really just wondered if bandwidth changed with stream count.

It does not, all I/O channels are active at the driver level, even when no audio is present.

Regards,
Jeff Petersen
Synthax Inc.

Jeff's Website

  • From: San Diego, CA
  • Registered: 2017-09-18
  • Posts: 79

Re: MADIface USB bandwidth... does it change?

I assumed so... thanks for the confirmation, Jeff!!

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Eric Seaberg • San Diego, CA • USA
A.E.S. • S.M.P.T.E. • S.P.A.R.S. • I.E.E.E.