From Brian Willoughby Sent Sat, Dec 22nd 2018, 06:26
From Brian Willoughby Sent Sat, Dec 22nd 2018, 06:26
On Dec 21, 2018, at 9:46 PM, codemechanic <xxxxxxxxxxxx@xxxxx.xxx> = wrote: > Two important things they do: > - work without needing to be connected to a computer > - support midi over ethernet (RTP Midi) - USB not required >=20 > Here's more information on RTP Midi, aka AppleMIDI: > https://en.wikipedia.org/wiki/RTP-MIDI >=20 > RTP Midi has been around for many moons and was released as a part of > Mac OS X v10.4 Tiger. There's an RFC for RTP Midi > (https://tools.ietf.org/html/rfc6295), and it has support for both > Midi timestamps and latency compensation. The wikipedia page states > average latency of 1-2ms with the possibility of hitting 125 > microseconds under optimal conditions. Here is some additional > information on RTP Midi in regards to latency: > https://en.wikipedia.org/wiki/RTP-MIDI#Latency Thanks! Learning more about real-world use of RTP-MIDI has been on my to-do list = for a while now. I plan to design RTP-MIDI into my next product. Sounds = like it can outperform USB. Glad to read that you=E2=80=99re using it = successfully. > Back to the older USB units... I've run the Unitor 8 under Mac OS X > Sierra and everything works fine (same with the MTP AV for that > matter). The latest Unitor Family Driver 2.5 is still available on > Apple's website. I can't recall the exact process but if you don't > have it installed already and you launch Logic with your > Unitor8/AMT8/MT4 interface plugged in, you should be prompted to > download and install the 2.5 driver. >=20 > Unitor Family Driver 2.5 > https://support.apple.com/kb/DL991 That sounds promising. If Apple are supporting it, then the driver = probably supports the advanced features of CoreMIDI properly (no = guarantees, of course, but it seems most likely). > Most of the iConnectivity devices (PlayAUDIO12, MIDI4+, mio4, mio10) > come equipped with a LAN port and support RTP Midi. Here's a some > additional information: > = https://www.iconnectivity.com/blog/2018/3/1/midi-over-ethernet-the-marvel-= of-rtp-midi >=20 > And ofcourse there are tons of other implementations of RTP Midi under > other OSes and languages including Linux, iOS, Arduino, etc. Thanks again for the real-world examples of RTP MIDI in use. Brian