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FamiTracker > General > FamiTracker Talk > Square Wave Help Owner: WheeljackDude New post
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Square Wave Help Posted: 2010-10-21 23:08 Reply | Quote
WheeljackDude

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#10698
Does anyone know how to make Square Waves that sounded like the Gutsman Square Wave on MM1 and the Gameboy sounds on Mario Paint? If there's a thread for it, please post a link.

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Posted: 2010-10-22 02:43 Reply | Quote
TechEmporium

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#10701
If you're using any of the stable releases of FamiTracker on the site, you should also have a help file with it; this help file has a list of all the effects that you can use to manipulate the different sound channels in the program.

For square wave effects, note those that effect pitch, volume & duty cycle. You can also have a look at the different Mega Man covers on this site to have an idea of how the effects are used with each square wave note.

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Posted: 2010-10-22 11:30 Reply | Quote
nicetas_c



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#10714
there you go


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C46 PWM in famitracker Posted: 2010-10-30 12:45 Reply | Quote
emanuel0831



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#10875
could someboody help me.
i have tried so many times to get a c64 style PWM
but it sounds really bad

i do it like this:

V00
V01
V02
V03
V04
V05
V06
V07
V07
V06
V05
V04
V03
V02
V01
V00

it only sounds good when im using arppegio

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Posted: 2010-10-31 01:19 Reply | Quote
TechEmporium

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#10894
It's quite arbitrary to use values of 03 or greater for this effect because the same can be done by repeating the following:

V00
V01
V02
V01
V00

But note that you're using the default square wave channels. That's not the best for simulating PWM because the NES never really supported it by default.

Plus, the best way of simulating PWM from a Commodore 64, in my opinion, would be to create a song using the VRC6 expansion chip )click on Module > Module Properties & choose Konami VRC6 from the Expansion Chip drop-down menu).

Now, you'll see 4 square wave channels (2 for the internal 2A03 instrument & another 2 for a VRC6 instrument you'll have to create, which appear at the right side of the screen). With the 2 new square channels, you can use your previous pattern perfectly (almost). You may also want to use the 3xx effect alongside it to create a smoother slide between notes.

To add an extra effects column for this, you can click on the arrow that's at the right of each sound channel's title bar.

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Posted: 2011-01-15 20:58 Reply | Quote
jrlepage
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#12427
@TechEmporium
I'm assuming the V00~V07 was in reference to the VRC6 channel.

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Posted: 2011-01-16 01:10 Reply | Quote
TechEmporium

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#12438
Mega Man 1 doesn't use any expansion chip.

When you use VRC6, using V00 to V07 only changes the pulse width of the wave & doesn't control its duty cycle. In the case of covering Mega Man game music, since you have no expansion chip, you can't modify the pulse width & would have to modify the duty cycle (which only has a 12.5% to 50% range before reverting back to 75%, which is nothing more than an inverted replica of a 25% duty wave).

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Posted: 2011-01-16 10:30 Reply | Quote
jrlepage
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#12449
I was under the (perhaps misled) impression that "duty cycle" and "pulse width" were synonymous. I know full well that 25% and 75% pulses sound exacly the same to the naked ear (until you try to play them at the same time at the same frequency). :p

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Posted: 2011-01-16 11:02 Reply | Quote
Mex

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Member for: 4642 days
Location: Victoria, British Columbia
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#12450
TechEmporium, note how the title of his post was 'C46 PWM in famitracker'.

Also, the same user asked the exact same question (of which I answered) in [url=http://famitracker.shoodot.net/forum/posts.php?id=1405]this thread.

Very odd indeed.

Posted: 2011-01-16 11:59 Reply | Quote
nicetas_c



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Location: AB, CA
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#12451
The C46 thing is in a wrong topic.

Posted: 2011-01-17 01:12 Reply | Quote
TechEmporium

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#12471
[quote=Mex]TechEmporium, note how the title of his post was 'C46 PWM in famitracker'.

Also, the same user asked the exact same question (of which I answered) in [url=http://famitracker.shoodot.net/forum/posts.php?id=1405]this thread.

Very odd indeed.[/quote]

Thanks for pointing that out, man.

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