Networking

Network Musical Performance and Cloud MIDI-Bridge

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Remote musical MIDI collaboration has been an interesting academic research area for years, but has not been explored by many casual musicians. One reason is that the complexity of software that brings MIDI and Networking together makes it a little bit of a daunting endeavor. We think it’s time to open exploration to more people and make remote MIDI collaboration as easy as joining a Hangout.

What is Network MIDI?

Back in 2001, a group of researchers at Berkeley began to experiment with remote musical collaboration [1]. The idea was see if musicians separated by some distance could collaborate in real time over a high-speed network. Rather than sending real-time audio signals, MIDI events were transmitted between instruments at two different locations.

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Use the ‘favorite’ Option to Automatically Initiate a MIDI Session

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When you use our rtpmidi tool to connect two devices you have created a “session.” The session has an “initiator” side that started the connection, and “listener” side that accepted the invitation. Some devices, however, do not make good “initiators” and iPhones are a great example. An iPhone cannot initiate a network MIDI session.

But sometimes you want an iPhone to join the MIDI network of a stationary computer … without going back to the computer screen. McLaren Labs’ “favorite” option was created to handle this case.

A “favorite” is the name of a device that that rtpmidi automatically initiates a session with whenever the favorite appears on the network. This new feature takes advantage of the properties of Bonjour (Avahi). A Listener advertises its availability using Bonjour. When rtpmidi detects a Bonjour name matching a favorite, it automatically initiates a session with that name.

Use the “favorite” option from the command line like this.

$ rtpmidi gui -F 'myiPhone' -t Organ-Synth:0

Now, whenever rtpmidi sees the iPhone named “myiPhone” it will automatically call it and route MIDI information to “Organ-Synth”.

A Demonstration

The video below shows how this works.

Using the ‘favorite’ option to automatically connect
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