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FamiTracker > General > FamiTracker Talk > DPCM conversation to RAW waveforms Owner: 8BitZtuner New post
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DPCM conversation to RAW waveforms Posted: 2014-09-09 15:49 Reply | Quote
8BitZtuner

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#61690
Is there a tool that you can import a .dmc file which converts the bytes into raw waveforms? Maybe in Audacity?
Posted: 2014-09-09 16:05 Reply | Quote
Roflo

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#61692
What are raw waveforms? Maybe you mean PCM formats, like a .wav file. Asking google results in this:
http://www.pineight.com/nes/#18
(bottom of site)
Posted: 2014-09-09 16:09 Reply | Quote
8BitZtuner

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#61694
Not a ripper. I mean like something that converts the DPCM values into a headerless wave file. It's hard to explain.
Posted: 2014-09-09 17:14 Reply | Quote
Alexander283

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#61702
Rush Jet DMC (RJDMC) has a function that allows you to export a .dmc to a .wav

Hope that helps you

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Attachments:
rjdmc.exe (96 Kb)
Posted: 2014-09-10 02:36 Reply | Quote
8BitZtuner

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#61721
Nononono!
What I mean is, that it converts the DPCM values into a raw waveform, like the 7-Bit output of the DPCM when raw samples are played.

Posted: 2014-09-10 02:52  (Last Edited: 2014-09-10 02:54) Reply | Quote
VinylScratch

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#61722
Are you asking if there's a program that can convert a DMC file to 7-bit raw PCM data that's playable on NES hardware? If so, then unfortunately I don't know if there are any programs out there like that.
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Posted: 2014-09-10 03:05 Reply | Quote
Xyz_39808

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#61723
uhhhhhhhhhhhhhhhhhhhhhhhhh

Play your dmc in a module
File>Create Wav
Posted: 2014-09-10 03:29 Reply | Quote
jrlepage
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#61724
I feel so stupid for never thinking of that.
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Posted: 2014-09-10 10:16  (Last Edited: 2014-09-10 11:04) Reply | Quote
jsr
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#61733
Use any program that can create a wave file from the sample and then use audacity to save it as a raw file.

This will resample it though.
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Posted: 2014-09-10 12:55 Reply | Quote
8BitZtuner

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#61735
[quote=VinylScratch]Are you asking if there's a program that can convert a DMC file to 7-bit raw PCM data that's playable on NES hardware? If so, then unfortunately I don't know if there are any programs out there like that.[/quote]

I think Vinyl get it.
Well, it mustn't be a program, can be a nyquist tool for Audacity that someone can write.
Posted: 2014-09-10 15:20 Reply | Quote
za909

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#61736
If you sample the DPCM by recording a .wav of it in Famitracker, you can get it fairly accurately, and without sound card noise. Then you can use it with anything that allows you to utilize the raw playback of the NES (Deflemask,Pornotracker,etc.)
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Posted: 2014-09-11 05:53 Reply | Quote
Jarhmander

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#61767
[quote=8BitZtuner][quote=VinylScratch]Are you asking if there's a program that can convert a DMC file to 7-bit raw PCM data that's playable on NES hardware? If so, then unfortunately I don't know if there are any programs out there like that.[/quote]

I think Vinyl get it.
Well, it mustn't be a program, can be a nyquist tool for Audacity that someone can write.[/quote]
Well, such a tool doesn't seem to exist suprisingly, but that's easy to do anyway. Is a python script ok?
Posted: 2014-09-11 14:39 Reply | Quote
8BitZtuner

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#61774
Sure. It just has to work with Linux too :P
Posted: 2014-09-12 08:26  (Last Edited: 2014-09-12 23:12) Reply | Quote
Jarhmander

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#61806
I wrote the utility using Python in like, 30 min? This means do not expect production quality code, but it should do the job:

[quote=]$ ./dmc2raw.py <(echo -ne 'UU\0\0\xFF\xFF\0\0\0\0\0\0\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF' ) >(xxd)
0000000: 4240 4240 4240 4240 4240 4240 4240 4240 B@B@B@B@B@B@B@B@
0000010: 3e3c 3a38 3634 3230 2e2c 2a28 2624 2220 ><:86420.,*(&$"
0000020: 2224 2628 2a2c 2e30 3234 3638 3a3c 3e40 "$&(*,.02468:<>@
0000030: 3e3c 3a38 3634 3230 2e2c 2a28 2624 2220 ><:86420.,*(&$"
0000040: 1e1c 1a18 1614 1210 0e0c 0a08 0604 0200 ................
0000050: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000060: 0204 0608 0a0c 0e10 1214 1618 1a1c 1e20 ...............
0000070: 2224 2628 2a2c 2e30 3234 3638 3a3c 3e40 "$&(*,.02468:<>@
0000080: 4244 4648 4a4c 4e50 5254 5658 5a5c 5e60 BDFHJLNPRTVXZ\^`
0000090: 6264 6668 6a6c 6e70 7274 7678 7a7c 7e7e bdfhjlnprtvxz|~~
00000a0: 7e7e 7e7e 7e7e 7e7e ~~~~~~~~[/quote]

Use freely, modify it, without restriction; I don't care of what anyone does with it.

EDIT: Only the attachment changed. Changed the shebang to [#!/usr/bin/env python2].

Attachments:
dmc2raw.zip (1 Kb)
Posted: 2014-09-12 10:40 Reply | Quote
jsr
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#61807
Jarhmander: I made a ZIP file of that attachment since the server apparently didn't like .py-files.
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