[LAU] Galvanic isolation (was: Re: pianos with built in recorders?)

[Ralf Mardorf]

On Thu, 24 Dec 2015 11:57:07 -0800 (PST), Len Ovens wrote:
>On Thu, 24 Dec 2015, Bob van der Poel wrote:
>
>> I believe that the MIDI spec
>> 
>> http://www.midi.org/techspecs/electrispec.php
>> 
>> says that you must have a opto-isolator. Devices without one are
>> probably not compliment ... don't know about direct usb
>> connections.  
>
>Yes that is the spec

for MIDI DIN.

See http://www.midi.org/aboutmidi/tut_midicables.php for anything else.
Silence regarding the way USB works, since faster doesn't mean less
jitter or no ground loops.
-- 
http://www.grundgesetz-gratis.de/