Studio guy Posted May 30, 2022 Share Posted May 30, 2022 Hi David (or anyone who can answer my question). I observed something yesterday as I was listening to a track in Logic Pro. Some notes of the same track had a lower volume than others (using Grand Piano and Pad as an instrument). I had put the velocity levels of all the notes at 100, so I would expect the volume levels to be equal. This was not a subjective observation as I checked in the inspector, and indeed the volume levels differ between some notes of the same track. Is that a glitch, or does equalizing velocity not completely even out volume if the notes were banged in unevenly on the midi keyboard? Thank you. Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted May 30, 2022 Share Posted May 30, 2022 If you open the MIDI region in the Event List, can you see if there is any data other than the MIDI notes (such as Volume, or Expression data for example)? Quote Link to comment Share on other sites More sharing options...
Studio guy Posted May 30, 2022 Author Share Posted May 30, 2022 There are columns for position, status, Ch, Num, Vel, Length/Info. I created a pattern region to compare and I see that the numerical value for volume levels shown in the inspector is not always consistent. meaning that there is slight variation from one running of the track to another. Now I don't get any variation by ear (it sounds perfectly even by ear); it's just by looking in the numerical value in the inspector. When the first few notes of the region start playing, the volume level is numerically higher then it goes down and stabilizes, and there is sometimes slight variation in the numerical value from one running of the track to another. Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted May 30, 2022 Share Posted May 30, 2022 7 minutes ago, Studio guy said: I created a pattern region to compare and I see that the numerical value for volume levels shown in the inspector is not always consistent. meaning that there is slight variation from one running of the track to another. Now I don't get any variation by ear (it sounds perfectly even by ear); it's just by looking in the numerical value in the inspector. When the first few notes of the region start playing, the volume level is numerically higher then it goes down and stabilizes, and there is sometimes slight variation in the numerical value from one running of the track to another. That's not necessarily an issue. Some instruments use pseudo-random sample selections so that the same note triggered multiple times doesn't always trigger the exact same sample (to create human-like variation), so that two successive playbacks of the same sequence don't always result in the exact same audio signal. That could be what results in the discrepancy in levels. Is it a large discrepancy or is it minimal? If it's minimal and it's otherwise not a problem, I wouldn't worry about it. Quote Link to comment Share on other sites More sharing options...
Studio guy Posted May 30, 2022 Author Share Posted May 30, 2022 No indeed It’s not a large discrepancy! By the way, this is what I saw in the event list for the midi region as you were asking earlier: There are columns for position, status, Ch, Num, Vel, Length/Info. Would you by any chance know why the first few notes of the region hit the volume in the inspector with a different value than the following notes (it goes from like -14 to -10, then stabilizes). I know it’s probably not an issue, I’m just curious if there is an explanation. Thanks a lot! Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted May 30, 2022 Share Posted May 30, 2022 1 hour ago, Studio guy said: Would you by any chance know why the first few notes of the region hit the volume in the inspector with a different value than the following notes (it goes from like -14 to -10, then stabilizes). If one note sustain overlaps the next note attack, then it's probably that the sum of the two sounds is louder than the first note when it's alone? If that's not what it is, you can create a simplified copy of your project with just that track and attach it here and I'll have a look. Quote Link to comment Share on other sites More sharing options...
Studio guy Posted May 31, 2022 Author Share Posted May 31, 2022 15 hours ago, Studio guy said: No indeed It’s not a large discrepancy! By the way, this is what I saw in the event list for the midi region as you were asking earlier: There are columns for position, status, Ch, Num, Vel, Length/Info. Would you by any chance know why the first few notes of the region hit the volume in the inspector with a different value than the following notes (it goes from like -14 to -10, then stabilizes). I know it’s probably not an issue, I’m just curious if there is an explanation. Thanks a lot! I guess what I was trying to say in my last paragraph is that, even though the discrepancy is minimal from one playback to another, the discrepancy is a bit larger from the first few notes onward. Meaning that the first few notes will register like a -10 in the inspector, then it goes down to like -7.5 and then stays around there for the rest of a verse for example. Quote Link to comment Share on other sites More sharing options...
Studio guy Posted May 31, 2022 Author Share Posted May 31, 2022 So anytime I stop playback, when I resume the notes hit the inspector with a higher numerical value then it goes down right after. So it’s not necessarily the first notes of the track, but the first note/notes of the start of the playback, whatever the position of the playhead in the track. Quote Link to comment Share on other sites More sharing options...
Solution David Nahmani Posted May 31, 2022 Solution Share Posted May 31, 2022 4 hours ago, Studio guy said: the first few notes will register like a -10 in the inspector, then it goes down to like -7.5 From -10 (minus 10) to -7.5 (minus 7.5) that means the signal goes up, not down. 4 hours ago, Studio guy said: So it’s not necessarily the first notes of the track, but the first note/notes of the start of the playback, whatever the position of the playhead in the track. That would still make sense because the earlier notes weren't playing so one note registers at -10 while two overlapped notes register 2.5 dB higher, at -7.5. Quote Link to comment Share on other sites More sharing options...
Studio guy Posted June 2, 2022 Author Share Posted June 2, 2022 Sorry for the late reply. And thank you so much for your response. I think I understand. So basically, it’s just normal overlap and nothing is off I was intrigued because the Trap beat kicks I had in the pattern track always showed the same volume nbr). Thank you so much for responding to my questions, and btw I used your Apple Pro training series for Logic Pro and I’ve always wanted to tell you how incredibly helpful it is!!! Thank you for publishing it! 1 Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted June 2, 2022 Share Posted June 2, 2022 Yes I think it's normal overlap, at least that's what I'm guessing from your description and from having experienced the same myself before. 40 minutes ago, Studio guy said: Thank you so much for responding to my questions, and btw I used your Apple Pro training series for Logic Pro and I’ve always wanted to tell you how incredibly helpful it is!!! Thank you for publishing it! Wow that's very cool, thanks a lot for your kind words! I appreciate it! Quote Link to comment Share on other sites More sharing options...
Studio guy Posted June 3, 2022 Author Share Posted June 3, 2022 23 hours ago, David Nahmani said: Yes I think it's normal overlap, at least that's what I'm guessing from your description and from having experienced the same myself before. Wow that's very cool, thanks a lot for your kind words! I appreciate it! You’re welcome. Thank you! 1 Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted June 3, 2022 Share Posted June 3, 2022 You're welcome! Quote Link to comment Share on other sites More sharing options...
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