Apple Logic

Logic Express Conflict - Audio Card

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meolo

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Opening post by meolo

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Good morning to Simone and to all the participants

My name is Fortunato, I am new and I wanted to submit a problem of mine to you.

I have an iMac with Mac Os Lion, Line 6 Toneport UX2 audio interface and Logic Express. I have updated the drivers.

When I open a midi file with Logic, I see that when the track starts, Logic interferes with the audio interface software (Gear Box) by modifying its parameters (Volume, effects, etc.) during the playback of the track.

I have not been able to identify the cause of this annoying inconvenience.

I hope that Simone can give me some advice.

Thank you and happy music to all

Fortunato

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Reply 2 by Thesimon

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It is probably a MIDI with automations, so it could be perfectly normal that it modifies parameters that were edited directly by whoever produced the MIDI file in question. Automation is an extremely important tool in Logic and in all music production software; without them, we wouldn't be able to slow down the tempo of a track and then have it start again, we wouldn't be able to raise or lower the volume of one or more tracks, we wouldn't be able to do the enhancing (sorry, I can't think of the Italian term) of certain filters at specific points in a composition. In short, you should post a screen capture video to understand if it is normal practice or if it is actually a software problem...

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Reply 3 by meolo

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Hi Simone,

after a lot of tinkering, I've understood what is happening between my audio interface and Logic. I open a standard MIDI file with Logic in external mode because I use the sounds of an external General MIDI expander. My audio interface (Line 6 Toneport UX2) is connected to the Mac via USB and uses its own software called Gear Box to function. This is what happens: the control changes of the MIDI files (Reverb, modulation, etc...) influence the effects of the audio interface by changing their parameters. For example, the MIDI modulation control commands and modifies the compressor effect of the audio interface while the piece plays, with unpleasant results. The only way to prevent this from happening is to delete the controls from the song's track list. Is there perhaps another way? I hope I have been clear and I am curious to know if this is only happening to me. Thanks and sorry for the length of the question. Fortunato

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Reply 4 by Thesimon

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Exactly, I imagined it was a MIDI file with automations; I had even written this to you in my first reply, but you hadn't told me that you were using an external expander, and that is where the snag occurs. In Logic, you can use software in Rewire (which, for those who didn't know, means opening other software and/or components within the main host program); this is allowed, provided that said software are AU (Audio Unit) compatible with Logic. I suspect that Gear Box might not be, and therefore the automations, passing via MIDI, end up affecting parameters that would otherwise do their job... To explain better: within AUs, there is a hierarchy of parameter assignment, meaning a specific MIDI parameter must correspond to a single specific AU address. For example, if we want to modify the spread within "Space Designer," that parameter will have a single standardized MIDI address. Evidently in Gear Box, the MIDI address that should modify the stereo spread instead modifies another parameter; for this reason, the result is quite disappointing (this is an example, I don't know which parameters are actually being modified in your case). One must always keep in mind that Logic does not need any MIDI expander, as it already has an excellent native supply of sampled sounds. If these are not enough, it is possible to add a series of Libraries (the basic Apple ones called Jam Pack) or other professional libraries, some of which are truly apocalyptic in size, so much so that they are sometimes sold bundled with Hard Disks for their use (see, for example, East West Quantum Leap Gold & Platinum). Logic is, after all, always a Music Production software; for this reason, it is useless to use additional hardware machines when it is possible to do everything inside it and with better results. Now, I don't know why you have this need, but normally external MIDI interfacing in Logic is more often used to capture MIDI data coming from a synthesizer or a generic MIDI player via a MIDI port, rather than being used to transmit MIDI externally. Furthermore, just to add insult to injury, I feel compelled to state that the sampled sounds in Logic are better than those contained in any hardware expander on the market. This is demonstrated if we look at the hardware on which each runs. Usually, external expander libraries, at best, do not reach 5 GB, partly because the hardware they run on is not the best, and therefore the quality of the sampled sounds is lightened to allow the machine to remain performant. In fact, one must consider that expanders are designed for live events and not for the studio. Logic, on the other hand, requires much more powerful hardware precisely because it must have the capacity to produce even very high-level music (imagine compositions of 30+ tracks with sampled audio at 24bit 96Khz / 16bit 44.1Khz per track) intended for the studio and not for live events. In fact, the Logic suite has provided another very powerful software for live use called Mainstage. Therefore, I believe you should abandon the use of external peripherals and focus on Logic if you want to do production. If you want to perform Live, perhaps it would be better to opt for the study of Mainstage, which honestly I don't have great knowledge of. I know a little, but sincerely I have never had the need to use this tool for a live performance.

For any other question, you can find me here....

Regards,

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Reply 5 by meolo

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You were very clear as usual. Thank you so much: you cleared up the doubts I had. Before, I used Sonar with the same audio interface, Windows PC and the same external General Midi expander, and I had adjusted all the sounds and midi parameters in a certain way. Opening them with Logic Express, all the parameters need to be modified and some sounds, like the harmonic, are replaced by sounds that have nothing to do with it. I will try to expand the sound libraries anyway.

Talk to you later

Fortunato

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Reply 6 by Thesimon

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You're very welcome. Yes, I recommend abandoning the expander; there are truly remarkable libraries for Logic and it's a shame not to take advantage of them. In the upcoming video courses, we will see how to use even very heavy libraries without putting too much strain on the CPU and the Hard Disk; this is a very important topic also to avoid excessive latency and to make the best use of processors and the RAM where the files necessary for the libraries are loaded—those that require fast data access, to be clear. In short, the results are incredible; I mean, it's software used to create the albums we buy in music stores...

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Reply 7 by PaNiFra

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Hi Simone

I have just registered on this forum, I wanted to ask you (since I am going crazy) and I am having my first experiences both with a MacBook Pro, purchased new, and Logic Pro 9 how to set up the ALLEN&HEATH GLD 80 with a Dante card installed, since my problem is that when importing 6 audio tracks into LOGIC and configuring LOGIC in "preferences" so that the Dante card is IN/OUT, I cannot get the individual audio tracks to come out on the individual channels of the mixer.

Sorry if I caused a bit of confusion while explaining the problem I have.

Thank you for your answer.

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