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Audio hijack vs soundflower12/7/2023 ![]() ![]() I don’t know which combination finally did it, but it worked straight on my iMac (beginner’s luck I guess), and I only became aware of the problem when I tried to duplicate my setup on the MacBook. It is vital that Traktor has a good working sound output for this to work, so check that you can play tracks. And restart, pray Goddess, quit Traktor, relaunch it until you finally have it. Alternate between IAC and iPMIDI, check and uncheck this ‘Send MIDI clock’ button, and hit ‘Apply’ every time you do something. There is an effing bug in there, you just have to massage Traktor the right way so it finally deign to output a MIDI clock. If you don’t, then restart, relaunch and cry if it still doesn’t work. Do you see some movement in MIDI monitor? Go back to the ‘MIDI Clock’ preference pane in Traktor. Restart, relaunch Traktor, and MIDI monitor. Hit ‘Apply’ĭo you see some activity in the MIDI monitor window? It should output a constant stream of ‘Clock’ messages. ![]() – Go to the ‘External Sync’, ‘MIDI clock’ tab, and choose ‘Apple Comp, IAC 1’ as your MIDI interface. – Go to Traktor, quit and relaunch it, and in the preferences, choose your habitual soundcard instead of JackRouter. – Go to the Audio MIDI setup app, located in Applications/Utilities/. Rest assured that you will manage to make it work. I am unable to tell you at this moment how to make this work in a 100% foolproof way. The good folks at NI did put in the release note of the soon to be T3.4: ‘Support for virtual MIDI ports under Mac OS X’, so hopefully this will soon be solved. The good news is that once it works, it keeps on working. Let me put this straight: getting Traktor to output a MIDI clock is difficult. For now we want instant gratification, so just load (apple-L) the provided ‘Traktor – Live.jks’ file The window you see is the equivalent of a patch bay, and allows you to do any kind of routing. – Double click on the provided ‘Traktor Setup.als’. – We’re done setting up the audio in Live. If you have a soundcard with 4 stereo out, for example, turn them all on. Turn on as many stereo pair as your soundcard has physycal outputs. Turn on every stereo pair there is (from 1/2 to 9/10). Select JackRouter as your input and output audio device. Quit Traktor and restart it so its prefs are stored. You are done setting the audio for Traktor, we will come back to the MIDI setup later. It will help getting the audio levels sane in Live. – Lower the main out of Traktor to -6dB (in the ‘Master’ detail pane). – Open the ‘Output routing’ section, choose ‘External Mixer’ and assign each deck to a pair of JackRouter cables. Open ‘Audio Setup’, ‘Soundcard’, and select JackRouter as your interface. – Hit the ‘Start’ button in the little ‘JackPilot’ window with the CPU Load bar. UNCHECK ‘Auto-Connect with physical ports’. – In the ‘Virtual Input Channels’ box enter 10. You should see the correct number of In and Out of your soundcard listed in the two popups below that. For now, leave it at the default value (usually 512 samples). To further lower the latency, you may try later to lower the buffer size. The downside is that it may take too much CPU. This allow me to have reduced latency (5.5 ms). I have a M-Audio Firewire Audiophile, and have had zero problems with a 88200 Hz sample rate. In the ‘interface’ popup, select your soundcard, and put the sample rate as high as it can go. Keep it in your dock, you will need it often. – Open the JackPilot app located in Applications/Jack/. – First, if you already have SoundFlower or the Instant Hijack functionality of Audio Hijack Pro installed, you have to uninstall them. It also lacks the incredible routing flexibility that Jack has. SoundFlower isn’t too bad, but I had endless problems with it. Very smart and generous move from Ableton if you ask me. The demo of Live isn’t time-bombed in any way, only saving is disabled. If you don’t have Live, you can still do a lot of things with the free demo. The only piece of software you really need to own here is Traktor. – The zipped T3 setup archive: One ‘Traktor Setup.als’ file and one. – Traktor 3: I use 3.2.2.020, but this should work with 3.3 This has been tested on OS X 10.5.2, with Traktor 3.2.2 and Live 7.05. ![]()
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