Michael was right; I was wrong.

To combine two MIDI streams in software, you need both MIDIOx and MIDIYoke.

MIDIOx accepts multiple MIDI inputs, optionally processes them, combines, 
and outputs them to MIDIYoke, which then "patches" them (combined) to 
Csound. MIDIYoke is needed because the output of MIDIOx is not from 
hardware; a software patch is required. It takes the output of one program 
and presents it to another.

Art Hunkins

----- Original Message ----- 
From: "Art Hunkins" 
To: 
Sent: Friday, August 29, 2008 4:49 PM
Subject: [Csnd] Re: Re: Midi Devices


> That's correct. Actually, if all you want to do is merge, you only need 
> Midi Yoke. (MIDIOx is for processing the data in various ways.)
>
> Of course, these programs are for Windows. The earlier one mentioned is, 
> IIRC, Mac.
>
> Art Hunkins
>
> ----- Original Message ----- 
> From: "Michael Mossey" 
> To: 
> Sent: Friday, August 29, 2008 4:23 PM
> Subject: [Csnd] Re: Midi Devices
>
>
>> I'm not entirely sure, but I think Midi Ox (a free program) can do this. 
>> I haven't tried it, but the midi configuration dialog box lets you select 
>> multiple inputs, and it makes a little diagram which seems to imply they 
>> will all be merged and sent to a single output.
>>
>> You usually have to combine this with Midi Yoke in order to have virtual 
>> MIDI devices.
>>
>> Mike
>>
>>
>> joachim heintz wrote:
>>> Hello everyone -
>>>
>>> is it possible to use Midi messages from ALL connected devices, instead 
>>> of selecting one of them (via -M0 etc)?
>>>
>>> Cheers -
>>>
>>>     joachim
>>>
>>>
>>> Send bugs reports to this list.
>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
>>> csound"
>>
>>
>> Send bugs reports to this list.
>> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
>> csound"
>
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
> csound" 

thanks to all for the answers!
	j