Re: Problems with USB AudioEngine Speakers [another couple of data points]

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On Sat, 2021-10-09 at 16:48 -0700, Jonathan Ryshpan wrote:
> There may be a problem with the cable.  The speakers are attached to
> the computer with a USB extender cable, which may not give as good a
> connection as is needed.  So I moved things around and connected the
> speakers without the extender; we'll see if things get better.  A log
> extract is attached (Audio-Restore-ShortCable.txt).

Are the speakers USB powered, too?  Powering devices from the computer
can show up disconnection problems when the computer is unable to
adequately supply them.  I've a computer with about 7 USB ports, but if
about two of them, any of them, are used with devices that require a
modest amount of power, failures repeatedly occur.  It seems like all
they're good for is keyboard and mouse (even then not that great).

USB extenders can be a problem, in themselves.  You've another pair of
not-so-great plugs and sockets in the path.  Long cables can be a
problem for data and power.  Amplified long cables can help, but are no
panacea (and won't help if the computer didn't supply adequate power). 
Unshielded cables can suffer interference.

If you have a motherboard that tries to be eco-friendly and power
manage USB ports, I suppose it might do that job badly, and add to
problems.

I use a 4-way USB hub to connect keyboard and mouse to a computer where
their cables are a bit short.  If I plug a second mouse into it, things
often go bad (for what seems like power supply reasons, rather than
software causes).  Ironically, the hub could it could have its power
boosted externally another supply (not included), through a micro USB
socket.  Theoretically, I could plug two USB leads into the hub and
computer, and then it ought to be able to connect 4 USB devices into
the hub.  Though, I don't believe the computer is good enough to be the
supply.  Another wall wart would be needed.


 
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