Hesh wrote:what i dont get is.....if all info is transmitted via USB...what do i need these audio cables for......shouldnt the USB provide sound thru live? Like, i can for instance use the R3 and impulse and trigger live instruments, so um ?
The R3 does
not send its audio-data/sound through USB, only Midi (as in, you can use the USB connection as a Midi connection instead of having to connect the Midi ports of the R3 to Midi ports on the computer).
To make sound go from the R3 through Live do the following (have a look at the pictures provided by the other friendly dudes, read the RTFM on how to do things and be a bit more friendly here to people who try to help you

):
- connect the audio-outputs of the R3 to the audio-inputs of your computer
- in Live's preferences chose the corresponding inputs and ouputs of your audio-interface to be used by Live
- set the Input of an Audio track in Live to the corresponding inputs of your audio-interface
- set the Audio track either to RECORD-ARM with Monitor AUTO or just set it to Monitor IN
- hit keys of your R3 and listen to how the sound goes from the outputs of your R3 through Live out of your computers audio-interface (if you notice latency, try to lower the audio-buffers via Preferences)
To make the R3 being Midi controlled by Live while its sound go through Live:
- connect the R3 via USB to your computer
- connect the R3's audio-output to your computer audio-input
- in order to make Live control/play the R3 via Midi chose the R3 USB Midi port as "OUTPUT" in Live's Midi Preferences
and make sure that the R3 is setup to receive external Midi notes and react to it accordingly (!!!) (if you don't know how to do that RTFM)
- in order to record you playing via the R3's keyboard chose the R3 USB Midi port as "INPUT" in Live's Midi Preferences (you can set both)
- setup a Midi track and insert the "External Instrument" to it
- setup the "External Instrument" to use your USB Midi Output as output and your audio-interface's input as input
- record or mouse-click some Midi clip in Live (! see below!)
- play the Midi clip and make sure your R3 receives all notes, in order to hear the sound make sure the Monitor setting of the track is setup right
!If you want to hear the sound of the R3
while recording a Midi clip via it's keyboard you either have to setup the R3 to use "Local ON" (or whatever it is called in it's preferences) or Live to route the Midi input straight back to the Midi output. Do
not setup
both at the same time, because that will lead to two notes being played everytime you hit a key (both from local control and Midi control).
Now turn off that computer and open the book.
PS: Instead of using the "External Instrument" you can use two separate tracks, one Midi and one Audio track.