[sdiy] MIDI over Ethernet (was Microchip DSP kit $60 > AVR32)

Bob Devries bdevries at gil.com.au
Tue Mar 25 03:06:21 CET 2008


Some of the newer digital synths now have a USB connector in place of the 
regular MIDI. I'd guess it's only a small hop from there to ethernet.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Richard Wentk" <richard at skydancer.com>
To: "Tom Wiltshire" <tom at electricdruid.net>
Cc: <Synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, March 25, 2008 9:50 AM
Subject: Re: [sdiy] MIDI over Ethernet (was Microchip DSP kit $60 > AVR32)


>
> On 22 Mar 2008, at 15:13, Tom Wiltshire wrote:
>
>>
>> On 22 Mar 2008, at 15:00, Jim Patchell wrote:
>>
>>> The new XMega AVR is also looking very promising.  It will have  the 
>>> ability to do a lot of things in hardware ( DMA, Event  Routing) that 
>>> will help a lot in increasing the amount of work the  processor can 
>>> do...plus the 32MIPs processing speed.
>>>
>>> There are other free tools available for the AVR such as  Ethernut.  It 
>>> is a combination RTOS/TCP-IP Stack that works really  nice.  I am in the 
>>> process of writing a server (running on Windoz)  and client (running on 
>>> an Ethernut board) that will do MIDI over  Ethernet.
>>
>> Sounds interesting, Jim, but I've got to ask "Why?"
>> I thought everyone was moving from 'traditional' MIDI via the old  DIN 
>> plugs to MIDI over USB? What's the advantage of ethernet as a 
>> connection, particularly if it's non-standard?
>
> 31.25k MIDI over DIN is pretty damn slow. MIDI over Ethernet wouldn't  be, 
> and would allow things like multiple channels of poly AT.
>
> Also longer cable runs and easier patching with hubs.
>
> The killer app would be MIDI *and* audio over Ethernet. There are 
> commercial products which do this, but they're not cheap. And since 
> Gigabit Ethernet has plenty of spare bandwidth, you could potentially  run 
> hundreds of channels of MIDI and tens of channels of 24/96 audio  over a 
> single cable.
>
> Once 10GB fiber arrives, that's going to turn into hundreds of  channels 
> of 24/96 audio, using the same protocols.
>
> There are obvious applications for a digital modular - perhaps even a 
> patchable one.
>
> Richard
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