Archive for October, 2008

Playlist of good C64 music

October 19, 2008

Yesterday jacob at Mikrogalleriet asked me for a playlist of good C64-music so I picked some random stuff out. I thought I’d share it here aswell, but I was too lazy to link them all (like before). So your mission is: find the songs over at 6581-8580.com (150,000 songs recorded from real C64s), download both 6581 and 8580 versions, and feel the difference before the difference feels you! The point is that you’ll get some nice new music and maybe understand a bit more about the nerdery of sound chip comparisons. 6581 is the old model of the C64 soundchip (dirty sound, narrow filter span, bigger variation in general, good sample playback) and 8580 is the new one (more waveforms, clean filter). 8580 = 6582? Blablabla. Yo deejay pump this party!

rob hubbard – mega apocalypse (oldschool space war electro 1987)
jeff – anal’ogue (newskool bass funk rave 1996)
zardax – alka (melancholy 1996)
zardax – suerya (happiness 1996)
johannes bjerregaard – alf tv theme (even better than the real thing 1988)
soundemon – tamaking (industrialish 2002)
jammer – hvsc (speech synthesis funk 2006)
jammer – mr marvellous (speech synthesis funk 2006)
viznut – progress without progress (anti capitalist 6581 singing 2006)
pri – slap chill out (fonk! 1994)
aleksi eeben – grandrules 1-4 (death metal epic 2002) (mixed mp3 here)
raveguru – assid (8580-acid in all its simplicity 2004)
martin galway – wizball (the ultimate intro, as outro 1987)

Sound Chip Comparisons

October 15, 2008

I was always painfully aware of the differences between different sound chips. And I don’t mean the differences between the Atari-sound and the C64-sound. There is actually a difference between two chips of the same brand, model, and revision. Obviously this is not the most interesting topic for some people (eh, most?), but a while back there was an interesting paper on the topic made available online.

Sebastian Tomczak wrote a paper last year for Australasian Computer Science Conference and it was actually criticized a bit for being too specialized (even by computer nerds, hehe). Tomczak’s assumption was that in the production of this videogame toy, you wouldn’t be as thorough as you would with a musical instrument. (which the Gameboy has become) And it seems he was right. It is refreshing to read a methodological and academia-styled approach to the sounds of 34 different Gameboys! I especially like the focus of the noise character of different Gameboys (not the user-controlled noise channel, but the background buzz/hum, the ’selfnoise’). Interesting to some would be that underclocking the Gameboy removed this noise, atleast in one case. As one conclusion, Tomczak states that although the sound in the original grey Gameboys are widely regarded as the best, they are also the ones that vary the most. This is similar to the soundchips of the C64, as the old model (6581) varies more than the new model (8580), but more about this some other time. In the paper, there is not really any more conclusions, but since I read the disclaimer (please, don’t expect too much) I am still satisfied.

Anyway. Read Tomczak’s paper here and get more info (sonograms, audio files) here. Tomczak also mentions a previous study of the Gameboy sound chips, by Herbert Weixelbaum, which is found here. (Btw, the Gameboy does not really have a dedicated sound chip – the CPU handles the sound) Recently, Tomczak also questioned the supposedly increased bass sound of the Pro Sound modification of the Gameboy. In this blog post he shows sonogram images which do not indicate much difference in bass. Don’t believe the hype! Bring back the bass!

To make up for this massive gameboy nerdery, here is something completely different.