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Topic: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

The ARC USB uses simple MIDI notes for its communication with TotalMix FX. Unfortunately there are some MIDI programs that can not handle the flow of MIDI messages of the ARC USB, which causes dropped notes and other ill effects. The majority of problems is under macOS and with Logic, but not exclusively.

A fix might be to change from simple MIDI notes to SysEx messages. These are usually ignored, but will be specifically used by TotalMix FX.

For this to happen the ARC USB needs to be flashed to a new firmware version that adds a SysEx mode. We opted to not remove the former mode as older versions of TM FX will only work this way. A newer version of TM FX will recognize the new ARC USB firmware version and SysEx mode (SE mode) will be used automatically.

So far the theory, now to the real-world application. First download and unzip these two files:

Update: beta phase is over, this is the link to the final firmware version which works with TotalMix FX 1.6 and up:

http://www.rme-audio.de/download/fut_arcusb_mac_v7.zip

Exit TM FX and copy the new Totalmix into the Application folder. Overwrite the existing one (replace). Do NOT start it.

Hold down the buttons TALKBACK and DIM while connecting the ARC USB. Then all LEDs should be lit a tiny bit. The ARC USB is in programming mode.

Start the ARC USB Flasher app. If you did not follow the above instructions you will be notified to exit TM FX. If it doesn't find the current version number then the ARC USB is not in programming mode, see above.

If programming succeeds disconnect the ARC USB, exit the Flasher, start TM FX, reconnect the ARC USB. Now go to Options / ARC & Key Commands Settings, tab ARC USB. In the lower right beside the Default Encoder Function list the info string 'SE-Mode' should show up.

Now check if your former issues are resolved.

Thanks for any feedback!

Regards
Matthias Carstens
RME

2

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

You might encounter the following issue: after wakeup from sleep ARC communication is dead for up to 30 s. Simply wait, it will come back. We saw this effect on one of many tested Macs only, and it vanished even there later on. This will be fixed in a later version but should not prevent you from trying the new SysEx mode.

Regards
Matthias Carstens
RME

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

This is great, MC. Installed it yesterday around lunch, and haven't had any issues in say 18 hours of working since. Before, I would have had to restart Logic about 10 times in that time. Glad this is solved!

RME Fireface 802 + RME ARC USB
Mac Pro 2010 | 12core 3.46ghz | 96gb
MacOS 10.13.6
Logic Pro X 10.4.2

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

This is great news

Sounds4all how are you getting on with it - issues resolved still?

Going to do this tonight

Sounds4All wrote:

This is great, MC. Installed it yesterday around lunch, and haven't had any issues in say 18 hours of working since. Before, I would have had to restart Logic about 10 times in that time. Glad this is solved!

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

Sounds4All wrote:

This is great, MC. Installed it yesterday around lunch, and haven't had any issues in say 18 hours of working since. Before, I would have had to restart Logic about 10 times in that time. Glad this is solved!

good news!!

macOS 10.12.6
MBP 11,3 (15" late 2013)
FF UCX FW v47 driver v3.08
RME ARC USB

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

Hi MC
What is the latest version of this that fixed the arc issue. I'm still running the beta 1.53b1? please tell me where to find total mix drivers can't find them hmm
Tristan



MC wrote:

The ARC USB uses simple MIDI notes for its communication with TotalMix FX. Unfortunately there are some MIDI programs that can not handle the flow of MIDI messages of the ARC USB, which causes dropped notes and other ill effects. The majority of problems is under macOS and with Logic, but not exclusively.

A fix might be to change from simple MIDI notes to SysEx messages. These are usually ignored, but will be specifically used by TotalMix FX.

For this to happen the ARC USB needs to be flashed to a new firmware version that adds a SysEx mode. We opted to not remove the former mode as older versions of TM FX will only work this way. A newer version of TM FX will recognize the new ARC USB firmware version and SysEx mode (SE mode) will be used automatically.

So far the theory, now to the real-world application. First download and unzip these two files:

http://www.rme-audio.de/download/tmfx_mac_153b1.zip

http://www.rme-audio.de/download/fut_arcusb_mac_v7.zip

Exit TM FX and copy the new Totalmix into the Application folder. Overwrite the existing one (replace). Do NOT start it.

Hold down the buttons TALKBACK and DIM while connecting the ARC USB. Then all LEDs should be lit a tiny bit. The ARC USB is in programming mode.

Start the ARC USB Flasher app. If you did not follow the above instructions you will be notified to exit TM FX. If it doesn't find the current version number then the ARC USB is not in programming mode, see above.

If programming succeeds disconnect the ARC USB, exit the Flasher, start TM FX, reconnect the ARC USB. Now go to Options / ARC & Key Commands Settings, tab ARC USB. In the lower right beside the Default Encoder Function list the info string 'SE-Mode' should show up.

Now check if your former issues are resolved.

Thanks for any feedback!

7

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

https://www.forum.rme-audio.de/viewtopic.php?id=28270

Regards
Matthias Carstens
RME

8

Re: Beta test: ARC USB Firmware Update for SysEx Communication (Mac first)

The Beta test phase is over, the Mac flasher for the ARC USB is now on the website's USB download page, including a readme on how to use it.

Regards
Matthias Carstens
RME