Dermot's chiptune covers

Post your cover music here and receive feedback.
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This area is dedicated to covers of existing songs. When posting a song, please include information about the original song.
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Sky Yoshi
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Re: Dermot's chiptune covers

Postby Sky Yoshi » Mon Feb 01, 2016 3:04 pm

Dermot >> yup! I guess... sorry if that was a bad idea...
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Dermot
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Re: Dermot's chiptune covers

Postby Dermot » Mon Feb 01, 2016 3:21 pm

Sky Yoshi: No, it's not a bad idea. Maybe I should have done that first. I just wanted to give commentary on every cover. ^_^;

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Re: Dermot's chiptune covers

Postby Sky Yoshi » Mon Feb 01, 2016 4:22 pm

Dermot >> Sorry. I didn't know that...
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Dermot
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Re: Dermot's chiptune covers

Postby Dermot » Mon Feb 01, 2016 4:48 pm

It's fine. I really should find a better way to distribute these covers eventually.

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Dermot
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Re: Dermot's chiptune covers

Postby Dermot » Mon Feb 01, 2016 7:09 pm

Here is an archive of my chiptunes. The archive is in 7-Zip format ( http://www.7-zip.org/ ).

https://dl.dropboxusercontent.com/u/109 ... iptunes.7z

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Teenage Mutant Ninja Turtles: Turtles in Time - Climactic Battle (VRC6)

Postby Dermot » Tue Feb 02, 2016 4:58 pm

A whole lot of energy in this song. For this cover, I can't say with full confidence that I adapted the instruments as good as they could have been, but when I hear them all play together, they don't sound half bad. I didn't use the triangle or noise channels at all - 100% of the percussion are DPCM samples, 12 of them, which may have been going overkill, but...it is what it is.

Download: https://dl.dropboxusercontent.com/u/109 ... %20NSF.zip
Last edited by Dermot on Sat Feb 06, 2016 2:43 pm, edited 2 times in total.

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Re: Star Fox (SNES) - Boss Roll (VRC6)

Postby RushJet1 » Thu Feb 04, 2016 8:44 pm

Shywolf wrote:
Dermot wrote:I have been noticing something about DPCM. When the frequency register is anything below 15, the sample lowers in pitch, but it also gives a just-audible hiss as the sample ends. Does anyone know how to reduce this effect? Or is it just part of the beast?

This is what happens when the DPCM plays silent (and/or near-silent) parts of samples at lower pitch settings. There's a technical explanation for it, but I don't really know it. Anyways, you can reduce the effect by deleting your samples' silence in the editor. E.g.:

trimthis.png
I needed to trim slightly more than that^ to remove the hiss, but you get the idea.

Nice cover btw.


The DPCM is a 1-bit method of generating audio. .dmc files contain a stream of bits that affect the delta counter's (wave's) position. Since there are only two possible values (0 is down, 1 is up), there is no way to have true silence. The next step in DPCM has to either change upward or downward, so you end up with an up, down, up, down, etc. motion for silence, which creates that little high-pitched noise. Near-silence sometimes sounds like hissing because it is that high-pitched tone but broken up like static. This is why some bassier drum samples sound kind of fuzzy, because the lower-pitch parts have very gentle slopes where not a lot of change happens. This is also why the DPCM is pretty good at making triangle waves - the triangle is always either going up or down.

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Re: Dermot's chiptune covers

Postby Dermot » Thu Feb 04, 2016 8:58 pm

That is...a very fascinating explanation. Thank you. ^_^

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Capcom logo (early 1990s) (VRC6)

Postby Dermot » Fri Feb 05, 2016 2:11 pm

The 2A03 arrangement used in later NES Capcom games like Mega Man 6 never did this jingle justice. So I made a cover in glorious VRC6.

Download: https://dl.dropboxusercontent.com/u/109 ... %20NSF.zip
Last edited by Dermot on Sat Feb 06, 2016 2:43 pm, edited 1 time in total.

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Sky Yoshi
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Re: Dermot's chiptune covers

Postby Sky Yoshi » Fri Feb 05, 2016 2:19 pm

NIce one! Keep up the good work!
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