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big
from lsg on 2008-01-11 10:16 [#02162522]
Points: 23711 Status: Lurker | Show recordbag
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if i have a sample of a synth that i recorded and i want to loop, what's the easiest way of looping it without getting a pop?
do i have to crossfade every ending to beginning? what's your method?
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_awt_
from Malmö (Sweden) on 2008-01-11 10:18 [#02162524]
Points: 2202 Status: Regular
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zoom in with a wave editor and cut the end and start "perfectly" and it might work, but it really depends on the sound.
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_awt_
from Malmö (Sweden) on 2008-01-11 10:20 [#02162525]
Points: 2202 Status: Regular
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and by "cut" I mean cut it so that the soundwaves "fit" at the end and start, a short short fadeout/in at the end/start is probably needed to, the shorter the better but that depends on the character of the sound.. just my way of doing it..
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big
from lsg on 2008-01-11 10:22 [#02162526]
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right i did this but made a mistake, i'm now going to try (mistake was it didn't snap to the beginning en end of the bars)
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freqy
on 2008-01-11 10:30 [#02162531]
Points: 18724 Status: Regular | Show recordbag
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use an envelope in a sampler and trigger via midi.. alter attack and release and it will create a smooth transition between end and start.
your music is so fine i thought you'd know that...y probably do ,.....anyway wheres our big music bundle? thought you were gonna make a collection of big tracks.?
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big
from lsg on 2008-01-11 10:34 [#02162532]
Points: 23711 Status: Lurker | Followup to big: #02162526 | Show recordbag
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im already tired of this
freqy: my first album (with old tracks) will be out this month
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roygbivcore
from Joyrex.com, of course! on 2008-01-11 10:34 [#02162533]
Points: 22557 Status: Lurker
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all you need to do is have the wave form start and end at the same spot (vertically) in the loop
examples:
/\/\/\/ NO /\/\/\ YES
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big
from lsg on 2008-01-11 10:57 [#02162536]
Points: 23711 Status: Lurker | Followup to roygbivcore: #02162533 | Show recordbag
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this didn't work perfectly either, maybe it's these lfo sweeps in the preset of the synth
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big
from lsg on 2008-01-11 10:58 [#02162538]
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by screwing around a bit with the beginning and ending i got a good fit, but i don't know wether that'd give trouble when i'd loop the sample through a whole track
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futureimage
from buy FIR from Juno (United Kingdom) on 2008-01-11 10:59 [#02162539]
Points: 6427 Status: Lurker
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Get it to cross zero (as in start and end on zero)
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big
from lsg on 2008-01-11 11:03 [#02162540]
Points: 23711 Status: Lurker | Followup to futureimage: #02162539 | Show recordbag
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you didn't work, plopped
next time im not going to be lazy and just play the loop for a few minutes/the whole song
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dave_g
from United Kingdom on 2008-01-11 11:05 [#02162541]
Points: 3372 Status: Lurker
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The pop is a transient caused by the start and stop points being out of phase. i.e. if end is at a maximum and start is at a minimum, you get a big transient from max to min in a period of 1/sampling freq, i.e. quickly... pop!
To get rid of the pop, make sure that the start and stop align like said above.
For longer evolving samples, it is difficult if the timbre changes. To get round this you need to crossfade the start and stop. At the loop point the sound should be 50% of each waveform, i.e. half from the end and half from the beginning. Hope that makes sense.
If your editor cannot do it automatically, you can do it yourself:
fade out the last second of the end of the loop, cut it to clipboard.
fade in the first second of the loop and mix paste the end bit over it.
Now make the loop points equal to the start of the new (mixed)start and end of the new (shortened) end.
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freqy
on 2008-01-11 11:51 [#02162554]
Points: 18724 Status: Regular | Show recordbag
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unless this pop is present in the wav? but thats to obviously silly of me .
you say you got lfos running too ...is that post recording?
try turning them off see if mr.pop goes away?
try importing the loop into a fresh sequencer project try see if it clears up.
look forward to your music ..i'll probably be paper decorating to the sounds in my new home. might be off net for a week or two. but shall d/l em asap.
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hedphukkerr
from mathbotton (United States) on 2008-01-11 12:20 [#02162562]
Points: 8833 Status: Regular
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if you really cant get crossing zero to work (which it should) then you can always zoom in and select small bits at the beginning and end of the loop and fade them in/out.
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big
from lsg on 2008-01-11 19:04 [#02162652]
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okay i wonder: the sine thingy has to be at the same levels to not plop, but does the slope need to be continued as well?
the rest of your advice i kinda know already, and i wondered about a really fast working method for fl studio becuase when you cross fade you need the sample to be a bit longer and the loop isn't one bar, or one loop, in length anymore. similarly when you let the sine wave connect you make the sample a bit longer or shorter and the length is wrong, unless the difference is so small it's not noticable?
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hedphukkerr
from mathbotton (United States) on 2008-01-11 19:25 [#02162655]
Points: 8833 Status: Regular | Followup to big: #02162652
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preferably you would want the wave to have at least a similar slop, but having it both starting and ending on zero is most important.
also, dont bother trying to loops in fl studio - the editor just isnt that good. use a standalone wave editor like audacity to get your loops right, then throw them into fl.
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big
from lsg on 2008-01-11 20:19 [#02162668]
Points: 23711 Status: Lurker | Followup to hedphukkerr: #02162655 | Show recordbag
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maybe the new edison editor in fl 7 is good enough, it can zoom into enough? i'll try it in soundforge though
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