ddeml
Registered User
Joined: 22 Sep 2003
Location: Frankfurt a. M.
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 Posted: Tue Sep 23 2003 00:02
Seamless Loop Bug |
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Hi!
When I make a forward loop using a the tansition amplitude any other than zero, then it includes a zero sample inbetween causing a click sound at each loop roundtrip.
Here is the module and result wave to reproduce the bug.
Greetings - Richie |
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Inge
Man-At-Arms
Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
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Posted: Tue Sep 23 2003 01:07
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I can't even get the original sample looped properly in soundforge. Could you give a link to the original sample? I'm starting to doubt the possibility to loop this sample properly without adjusting its waveform too much.
Inge |
Care for a game of Monopoly? |
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ddeml
Registered User
Joined: 22 Sep 2003
Location: Frankfurt a. M.
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Posted: Tue Sep 23 2003 13:46
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This is all I have of that sample.
You can see here how I workaround that problem.
If you cannot find a loopable point with zero amplitude, you can attach a copy of the sample after and putting the loop points anywhere at the very same sample position in each copy. But is is a nasty and effortful workaround. 
However - to show the behavior of this bug, it is not nessessary to have a sample that perfectly loops. 
ddeml |
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Inge
Man-At-Arms
Joined: 04 May 2003
Location: Nieuw Lekkerland @ Holland
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Posted: Tue Sep 23 2003 14:16
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I finally understand your initial statement, and I doubt if it is true. If I take a complete sine, and create a loop between two points that are exactely at the top of the sine, than the loop will sound flawless. That could not be possible if a zero point is attached to the first looping point.
Some loops just can't be made. Period. If a sample is too dynamic, the only way to make a good sounding loop is by the method you described. I must try that method though, but it sounds as a reasonable solution. Stupid of me that I never thought of it before.
Inge |
Care for a game of Monopoly? |
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ddeml
Registered User
Joined: 22 Sep 2003
Location: Frankfurt a. M.
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Posted: Tue Sep 23 2003 14:28
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Hmm, when i do not loop fron end to end, the problem does not appear. I dont know why. I do not see a sample at either end that could cause the problem... 
However...
ddeml |
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Yannick
MadTracker Author
Joined: 16 Apr 2003
Location: Belgium
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Posted: Tue Sep 23 2003 14:56
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It's always a bad idea to have a loop point at an extremity of a sample. Always leave some space before and after.
If you do that, you'll never get clicks.
Yannick |
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Big Mo
Registered User
Joined: 05 May 2003
Location: Hoogeveen, The Netherlands
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Posted: Fri Oct 10 2003 14:47
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That's because of interpolation, right? MadTracker interpolates to a zero value if a loop point is at the end of a sample. At last, with interpolation off, looping is allright in old FT2 mods (mostly chiptunes) while even sine waves get a sharp sound in MT with interpolation on.
Isn't there a way to interpolate to the first value after the loopstart point? Then you'll never have clicks, if looped properly. |
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Enonimis
Regular
Joined: 05 May 2003
Location: Canton Ohio, USA
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Posted: Mon Oct 20 2003 23:30
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Maybe I'm not understanding this, but what's wrong with a fade-out fixing this problem? Just fade out 1 cycle before the end loop point, and fade in 1 cycle after the start loop point. Damn, someone should hire me to fix everything in the world.
~Enon |
If you do not agree with my opinions, you are wrong. If you do agree with my opinions you are drunk.
~~~~~~~~~~~~~~~~~~~~~~
http://elrick-enonimis.com
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Big Mo
Registered User
Joined: 05 May 2003
Location: Hoogeveen, The Netherlands
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Posted: Mon Oct 20 2003 23:42
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Well, if you have the time to fade all samples in a FT2-made chiptune, then there's nothing wrong with that.
I use 'No interpolation' for chiptunes anyway. |
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Enonimis
Regular
Joined: 05 May 2003
Location: Canton Ohio, USA
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Posted: Mon Oct 20 2003 23:48
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Well if you ask me (and you should) chiptunes are evil, and shouldn't be made under any circumstances. Why I'm thinking about it, I think everyone should ask me before doing anything that might be considered even remotely chiptune-esque.
~Enon |
If you do not agree with my opinions, you are wrong. If you do agree with my opinions you are drunk.
~~~~~~~~~~~~~~~~~~~~~~
http://elrick-enonimis.com
~~~~~~~~~~~~~~~~~~~~~~ |
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CHICAGO¤lollie
Registered User
Joined: 05 May 2003
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Posted: Tue Oct 21 2003 05:38
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| Enonimis wrote: |
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Well if you ask me (and you should) chiptunes are evil, and shouldn't be made under any circumstances.
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Chiptunes?
Evil?
...are you broken? Take a look at Disneyland! It's got Hitler written all over it!
Back to the topic, what about crossfading the sample within itself? I can't explain it, but the concept is so simple! |
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ddeml
Registered User
Joined: 22 Sep 2003
Location: Frankfurt a. M.
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Posted: Tue Oct 21 2003 11:12
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| CHICAGO¤lollie wrote: |
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Back to the topic, what about crossfading the sample within itself? I can't explain it, but the concept is so simple!
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I think I already mentioned it. This is the workaround which allows you perfect looping at all. I do that for new tracks, but I dont like to adapt old tunes (whereever chip or not) just to work well with MT.
I am looking forward to MT3. By the way... Yannick? |
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Enonimis
Regular
Joined: 05 May 2003
Location: Canton Ohio, USA
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Posted: Tue Oct 21 2003 23:31
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Good luck with that question, Demeral. Yannick's reply will be, and I quote, "When it is ready."
By the way, I'd like to see more options for ways of getting a hold of you. The dozen or so IM links you have just isn't enough.
goddamn,
~Enon |
If you do not agree with my opinions, you are wrong. If you do agree with my opinions you are drunk.
~~~~~~~~~~~~~~~~~~~~~~
http://elrick-enonimis.com
~~~~~~~~~~~~~~~~~~~~~~ |
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CHICAGO¤lollie
Registered User
Joined: 05 May 2003
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Posted: Wed Oct 22 2003 01:35
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| Enonimis wrote: |
By the way, I'd like to see more options for ways of getting a hold of you. The dozen or so IM links you have just isn't enough.
goddamn,
~Enon
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Indeed!
Do any of those actually work? Or are they just there for decoration?  |
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Enonimis
Regular
Joined: 05 May 2003
Location: Canton Ohio, USA
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Posted: Wed Oct 22 2003 02:41
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I don't know about the rest of you, but on my monitor his goddamn icons go off the screen. I wish I was that important. Oh well, just one way of getting a hold of me for now.
~Enon |
If you do not agree with my opinions, you are wrong. If you do agree with my opinions you are drunk.
~~~~~~~~~~~~~~~~~~~~~~
http://elrick-enonimis.com
~~~~~~~~~~~~~~~~~~~~~~ |
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