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About This Multitrack - Mike Senior - 26-04-2012 You can find the multitrack files for this project in the 'Mixing Secrets' Free Multitrack Download Library. Before posting a mix, please read The Three Commandments!
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If you have any other general questions about this multitrack, just reply to this post and I'll see what I can do. Phase - Mike Z - 02-12-2012 In his track notes, Mike Senior points out there’s a lot of multi-miking in this session and that can cause phase problems when combining tracks. I listened for and measured phase among most of these combinations and recorded the results in the attached PDF. The quick summary is that I believe the recording engineer paid close attention to phase issues and most tracks can be used together with no problem. Here are the few potential issues I noticed: You might want to flip phase on both the snare top and bottom so that they better match the overheads. This isn’t very serious. They don’t sound bad together. The bass amp and DI tracks probably shouldn’t be used together. There are swings from positive to negative depending on the pitch so flipping phase on one track just reverses the swings. The close and room tracks for the piano probably shouldn’t be used together for the same reason as the bass tracks. Phase on the acoustic guitar DI track should probably be reversed if you want to use it with any of the mic tracks. Note that in some cases you might actually want to use some out-of-phase tracks together. Some of them combine to thin the mid-range and that could be something you want. I’d probably opt for EQ myself but it’s a possibility. RE: Phase - electricladyLAN - 02-12-2012 (02-12-2012, 05:13 AM)Mike Z Wrote: The bass amp and DI tracks probably shouldn’t be used together. There are swings from positive to negative depending on the pitch so flipping phase on one track just reverses the swings. Hi Mike Z, I had a look at the pdf you made, that is probably a good help to someone wanting to mix this track. When I read your comment in the post (quoted above /\ ) I wondered is it possible that the problem could be fixed with an all pass filter? At what pitch does the phase change? It may be possible to all pass one track at that frequency in order to combine the two signals. But if what you found is just different phase difference at RANDOM pitches then it may be a lot harder. RE: Phase - Mike Z - 02-12-2012 Hi electricladyLAN, B-flat 1 is the most in-phase (around +0.4 in PhaseScope) note throughout the song. Many other notes are out-of-phase. F1 is a good example and it measures -0.4. The first occurrence of B-flat 1 is around 6 seconds in while the first for F 1 is around 8.2 seconds in. You’ll hear the same sequence repeated many times throughout the rest of the song. Filters may be a difficult fix. They can alter phase themselves and these notes are fairly close together. But what the heck, give it a try! RE: Phase - Mike Senior - 03-12-2012 (02-12-2012, 05:13 AM)Mike Z Wrote: The bass amp and DI tracks probably shouldn’t be used together. There are swings from positive to negative depending on the pitch so flipping phase on one track just reverses the swings. That's to be expected really, given the inevitable timing offset. However, I wouldn't expect time-alignment of the two signals to have the same problem, so I don't think it's a reason to discount using the signals together. Otherwise you'd have to chuck out every amp+DI recording ever made! Quote:The close and room tracks for the piano probably shouldn’t be used together for the same reason as the bass tracks. A lot of this depends on the respective levels of the tracks. I'd not expect to use the room at the same level, so any comb-filtering would be a lot less severe as a result. Interesting document, though, nonetheless, and some very good pointers in there. RE: Phase - Mike Z - 03-12-2012 I agree. I should have phrased it differently than “probably shouldn’t be used together”. You mentioned time offset in your post and that brings up another idea for combining the bass tracks. Delaying or nudging the DI track right by 200 samples brings the two into much better phase. If that’s the right number, it means the microphone was approximately 5.1 feet (1.6 meters) from the speaker cabinet. RE: About This Multitrack - Boyfromoz - 27-02-2019 Hi Mike, Nice little shuffle tune. Shame it not gets air play. It really is a nice song I have a serious question who did the post production on the stems. The timing is all over the shot. The tempo starts at about 104Bpm then ramps up to about 111Bpm then finally settles down eventually at around 108Bpm Shuffle. No mention of this was mentioned by you in your multi-track dialog anywhere. For not many instruments and layers due to the above it was a very challenging mix Shame about the other stems that was not included from the finished product. However, I understand due to the arrangement of the artist it was not meant to be. However, I accepted the challenge and though the timing is not 100% perfect it was still a joy to mix. I will upload my mix in a couple of days. Your right about the drums there was a lot of eqing to get rid of that nasty pitch. Mike, thanks again for this challenging mix. One shouldn’t complain. It’s free. |