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#24195 - 04/09/99 08:25 PM
Re: Any problems with the XP-80?
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Junior Member
Registered: 03/11/99
Posts: 19
Loc: wilkesboro, NC, USA
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I have the same problems with my XP-80. I think the problem is with the sequencer's ability to play many simulataneous notes/sounds. I can, usually, have only about three simultaneous tracks as well. At first I speculated that the problem was polyphony. I thought that, since each patch is composed of multiple tones, perhaps each tone counted as one voice of polyphony. So, I counted the possible tones on the song I had recorded into the sequencer...they added up to only 34! So, I recorded parts into the sequencer using external MIDI gear and the problem persisted (I was using only 4-note polyphony on the XP-80 and no more than 3 note polyphony on each of the external instruments, so I had to conclude that the problem was with the sequencer becoming overloaded). From my experience, this is a problem with virtually any hardware sequencer (I don't know anything about such timing issues with software sequencing programs); my Korg M1 had the same problem, although I could seem to record more simultaneous notes on the M1's sequencer (but not many more!). I have never tried Yamaha hardware sequencers. I suppose what I am trying to say is that you may encounter this problem with any workstation keyboard. The onboard sequencer is great (very convenient; no other gear has to be turned on if you are using headphones) as a "scratchpad" for recording spontaneous playing and developing musical ideas, though.
I guess a way to successfully use the XP-80's sequencer would be to sequence only two tracks at a time and record them into a multitrack HDR (like VS880) and keep recording tracks upon tracks, using the HDR. (You can sync the XP-80 sequencer to the VS-880.)
I really like my XP-80, but am disappointed with the sequencer. Sound editing is pretty easy for not having knobs and the interface is, to me, extremely logical and easy to use. By the way, I very infrequently use the XP-80's factory sounds; I get virtually all of my sounds out of this synth from the expansion boards I have installed in it (I love their patches!). If it's the sounds you want, the JV-1080 and -2080, as well as the new -1010, have the same as the -80, but cost a lot less.
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#24202 - 04/23/99 02:15 PM
Re: Any problems with the XP-80?
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Junior Member
Registered: 03/24/99
Posts: 20
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Here's another email on the subject I had saved . . .
>>Hi there folks! I recently bought an XP-80 and I've been using the internal sequencer to record songs. Recently I've noticed a problem with the sequencer timing that's really frustrating me. Specifically, I've been loop-recording a rhythm track and then copying it for the duration of the song and then recording parts over it. I thought I was doing this correctly, but then I'll play it back and in certain parts of the song it sounds like there's a slight delay or pause before the next measure starts and the downbeat comes in. This seems to happen at the beginning of the phrase that was looped (although it might happen elsewhere; I'm not sure). But it doesn't happen every time the phrase repeats; just on occasion. It makes it sound like I'm working with a bad drummer. Quantizing doesn't seem to help. Has anyone else had this problem? It's driving me crazy!
Any help with this would be massively appreciated. ( I'm a newbie, so be kind!)<<
D Barnes wrote: This is a problem all of we newbies tend to run into and even the experts have to keep in consideration. It seems that even though the XP's have 64 voices, it doesn't mean you can have 64 events occurring simultaneously when sequencing. My understanding (and this may need to be clarified) is that MIDI can only process 10 simultaneous events at one point time (tic). So if you have the bass drum, hi-hat, snare, cymbal, hitting on a beat and at the same time (on the same tic) as well as another instrument using let's say 3 tones, and another using 3 tones, thats 10 events right there. Any additional events happening at that time (tic) will get pushed ahead and sound late. This is usually caused by over quantizing at 100% resolution so that every note is assigned to an exact part of a beat (or you have perfect timing :-)).
The solution is two-fold. To prevent the problem, don't use the quantize function when recording or if you must, set it on a lower resolution, say 85% or 90% or even less so that events don't stack up on the same tic.
To fix a sequence that already has this problem you can either go into Microscope Edit and use the Move function to move the offending notes a few tics forward or backward (if it is only happening in a couple of spots) or use Track Edit and use the Time Shift function (I think it is called, I'm not at my XP right now) and shift a track or two farward or backward a couple of tics.
This is how I do it, but I'm sure there are alternative methods you will likly see posted :-).
Good Luck
Dan Barnes
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