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Jammer
Registered: Nov 2002
Posts: 1289 |
problematic playback od GT multispeeds
I'm not sure how problems and hickups are common for playback on real machine but considerable number of my works usually sounds broken, especially those ones composed with the latest GT release. What's the culprit here? Are GT compilations that cycle sensitive or what? :) During the release of Club Stylier and a few other multis I was forced to create false SID address working as a buffer and then copy values to proper registers but it's really unwanted workaround. Any clues? |
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cadaver
Registered: Feb 2002
Posts: 1153 |
I recommend to redownload the zip now, as it contains also slightly updated editor code: the editor is now permanently locked to the "full buffered" mode SID write timing, as that's basically the only timing it can emulate 100% exactly without running a C64 CPU :) |
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Jammer
Registered: Nov 2002
Posts: 1289 |
One more thing. Is this 'vinyl crack' in editor normal? The higher speed the more audible it appears. Right after this update cracks become really frequent ;)
edit: I see that GT has really hard time with buffer under 50s, hence the cracks ;)
Right. After the update, GT now behaves more like SidPlay - sometimes strange gates occur between sounds in 16x tunes like in the compiled ones. No problems with 4x.
Couple of tests:
- Dancing Girls 4x SNG
- Dancing Girls 4x SID
- First 16x SNG
- First 16x SID
- Second 16x SNG
- Second 16x SID
Two 16x are problematic by definition seemingly, the 4x tune was one of the most troublesome before the update and sounded really random in SidPlay. |
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cadaver
Registered: Feb 2002
Posts: 1153 |
Now the editor & compiled playback (with full buffering) should be as close to each other as possible, so if something doesn't work at a particular speed, then the only advice remaining is: don't do it, or use different ADSR settings etc. |
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Linus
Registered: Jun 2004
Posts: 638 |
OSX port where are thou? |
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Conrad
Registered: Nov 2006
Posts: 833 |
@cadaver, thanks for adding the buffer option. Will be quite useful. :)
@Jammer, Dancing Girls... Very nice cover! :D |
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Mr. SID
Registered: Jan 2003
Posts: 421 |
Quote: OSX port where are thou?
I'll have a go at it when I get back home from vacation... No promises though... |
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Linus
Registered: Jun 2004
Posts: 638 |
Great, thank you! |
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Linus
Registered: Jun 2004
Posts: 638 |
@Jammer:
Dancing Girls is _very_ nice indeed!
Going beyond 8x in GT doesn't make much sense for me tho as I usually encounter more disadvantages than advantages (wavetable lenght, slow pulse- and filtersweeps and what not). I certainly do love the snare in your second attempt, nontheless. |
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cadaver
Registered: Feb 2002
Posts: 1153 |
GT2.73 has been released at http://cadaver.homeftp.net/tools/goattrk2.zip and SourceForge; the preview version above has been removed. |
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Jammer
Registered: Nov 2002
Posts: 1289 |
Hey, 16x tunes have more regular playback. How did you pull that off? ;)
I'm experimenting with hardrestart set to F000/FF00. Sounds promising. |
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