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Select the model, have the software learn it, select the target, press "go".
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Didn't even have to look at a help file or popup. Much simpler than anything in RX2 or RX3. The interface (at least for eq match and ambience match) is super-intuitive. I haven't messed with the automatic roundtrip feature yet, so I just exported an AIFF with original / new / original and opened it in the RX app. The kind of thing where the producer keeps on coming back and saying "these new adlibs in a studio just don't sound exactly like the subject's at-home interview adlibs from two years ago". I bought the RX4 Advanced upgrade yesterday afternoon, and just used it on a piece of very troublesome ADR in a documentary*. I haven't used it yet, but also see the "Make my file level-legal" as mentioned by Phillip, but see that being a nice QC check when television picks up later this year. When you complete the roundtrip, I then had very usable tone! I used it for 5 or 6 scenes? That alone sold me. Once inside RX, I used the Ambience "Learn" button to mull up a spectrogram of the tone, remove any clicks, pops, bangs, then "Render" it to the empty selection in Pro Tools. Basically found a section of tone, used the "Send as Reference function," then made an empty selection on a track where I want roomtone to go, which I send roundtrip.
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I found the Ambience match super helpful, but mainly used it to create nice long roomtone for a handful of scenes where the BG dropped away between setups.
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Took me a little while to get into the rhythm, but find it is actually more intuitive vs using individual audiosuite windows. WOW! I agree with tombackus that I had to crack open the manual to understand the new RX Connect (roundtrip from Pro Tools to RX4 standalone). I made the upgrade the upgrade from RX3 ADV to RX4 ADV just in time to use on DX editing for a feature this past week and.
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