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stunt
Account closed
Registered: Jul 2006
Posts: 48 |
Using samples in tunes.
G'day my c64 friends !
I want to make a tune that has an occasional sample playing while there's also 3 sidvoices playing. To me the intromusic of the game Hotrod is totally classic. It's the kind of stuff that makes me go whoopy.
Now I have some questions related to that:
1. What's the highest samplequality that i can get? (samplefreq & bitrate)
2. What's the smartest way to transfer samples from PC or mac to c64 (i have RR-net), so what format (unsigned raw?)
3. What fine trackers can handle this stuff best? And how do I load the samples to make them accesible to the tracker?
Keepin it real,
StUnT |
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stunt
Account closed
Registered: Jul 2006
Posts: 48 |
*bump* |
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Stainless Steel
Registered: Mar 2003
Posts: 966 |
you might want to check the digi version of Sid Duzz It at
http://home.eunet.no/~ggallefo/sdi/index.html
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Bamu®
Account closed
Registered: May 2005
Posts: 1332 |
Quote: you might want to check the digi version of Sid Duzz It at
http://home.eunet.no/~ggallefo/sdi/index.html
It seems that in the digi version of Sid Duzz you don't hear the samples if you type them in. |
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Mace
Registered: May 2002
Posts: 1799 |
The problem is, that on a C64 noone ever spoke about samplefrequency... it was just the NMI speed, in general.
There should be ppl around here who can tell you what frequency that will be, approximately.
As for bitrate... you probably mean bitDEPTH.
That would be 4 bits, as the volume register ($D418), which is used to play samples, only has 16 values (0...15).
And for 3 voice+sample music programs, the best known to me you should look for the Rockmonitor series. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Sample frequency depends on what you actually do. If you want 3 SID voices and 1 sample voice, you can get something around 10000 Hz and 4 bit sample resolution.
If you want more voices, you need some software mixing which reduces sample rate.
There is also the possibility to play 8 bit samples on C64, but that is a more sophisticated matter and also sacrifices one or more SID voices. |
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Mace
Registered: May 2002
Posts: 1799 |
Quote:There is also the possibility to play 8 bit samples on C64, but that is a more sophisticated matter and also sacrifices one or more SID voices.
Really?!
Can you point me to any examples? |
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Scout
Registered: Dec 2002
Posts: 1570 |
Quote: Quote:There is also the possibility to play 8 bit samples on C64, but that is a more sophisticated matter and also sacrifices one or more SID voices.
Really?!
Can you point me to any examples?
Wonderland IX
(NOT the DYSP+Moving Logo's part btw) |
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Conrad
Registered: Nov 2006
Posts: 849 |
Speaking on the subject, is there a way of playing 4-bit samples with music playing filters, without that dreaded distortion? Recently I coded a sample-player which works really well with music that don't have filters set. But for music with filters enabled, it just sounds awful, even on a 6581 SID.
I'm pretty certain this problem is natural with the SID chip, but surely one of you professional coders may have solved the problem by now... ? I mean 4-bit samples do nothing but modify the lower nybble of $d418, where the filter setting controls the higher nybble, which shouldn't affect the music volume at all.
@Graham: any articles on how to mix samples / 8 bit ? =) |
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yago
Registered: May 2002
Posts: 333 |
well, only the lower nibble is used for volume, the upper nibble is used for other stuff..
and read $d418, changing lower nibble and storing back will not work, because $d418 is write-only register.
you need a shadow-$d418 register for that
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TNT
Account closed
Registered: Oct 2004
Posts: 189 |
Quote: Quote:There is also the possibility to play 8 bit samples on C64, but that is a more sophisticated matter and also sacrifices one or more SID voices.
Really?!
Can you point me to any examples?
MMC64 .RAW Sample Plugin :)
Using all three voices for sample isn't that useful tho. |
