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Audiovq Test   [2010]

Audiovq Test Released by :
Algotech

Release Date :
18 July 2010

Type :
C64 One-File Demo

Website :
http://www.algotechproductions.com

User rating:awaiting 5 votes (2 left)   See votestatistics

Credits :
Code .... Algorithm of Algotech, svenonacid
Idea .... Algorithm of Algotech, svenonacid
Concept .... Algorithm of Algotech, svenonacid

Download :
http://csdb.dk/getinternalfile.php/90273/audiovq.prg (downloads: 567)
http://csdb.dk/getinternalfile.php/90327/audiovqupdate.prg (downloads: 237)
http://csdb.dk/getinternalfile.php/90277/audiovq8000.prg (downloads: 228)

Look for downloads on external sites:
 Pokefinder.org


User Comment
Submitted by algorithm on 23 July 2010
Lemming. the mp3 preview actually only has half the audio. (There is a gap of around 10 seconds before the next stage)

The quality of the final sound will be higher (the previews here are only 4bit without smoothing) Furthermore it does not utilise realtime deltademodulation hence a quarter the wavetable space
For music. it is recommended to use around 2000 waveform clippets instead of the default 256 in the original preview
User Comment
Submitted by Viscid on 22 July 2010
Sounds good in Vice 2.2.
Interesting pack-rate, I guess this would be interesting for speech or voices in demos. For harmonic musicpatterns the quality is too harsh.
User Comment
Submitted by lemming on 22 July 2010
I tested the update and it's rather promising and interesting now I must admit!
If you wanna hear how it sounds on my hardware (the same as mentioned below), here's a recording, converted to MP3 V0:
http://punainen.org/~lemming/6581-AudioVQUpdate.mp3
(file/link will probably die at some point in the future)
User Comment
Submitted by Joe on 19 July 2010
I really like this, although at first I thought I was hearing more of morning prayers to Allah than that of N-trance ;)
It would have been great not to have music but rather straight down talk, like a play or something.
I really think these kinds of efforts will result in something cool, it is clear already that both your experimentation in restricted,
animated or compressed graphics and now compressed sounds will result in something out of the ordinary!

Keep on for sure!
User Comment
Submitted by algorithm on 19 July 2010
Aaaargh. Darn codebase digiboost routine. I should have tested it before, but thanks for the info. Uploaded updated version which should be audible on all sid's.
This version is still only 4bit, The delta encoded waveform version will sound a lot smoother
User Comment
Submitted by lemming on 19 July 2010
Extremely silent on a real C64 with a 6581 (1983)
User Comment
Submitted by iAN CooG on 18 July 2010
hmm sorry to be a bugger, but... it's clearly audible in vice with reSID 8580+Digiboost, is BARELY audible in reSID 6581, but it's totally silent in reSID-fp 6581, any setting. totally silent also in Hoxs64 even with digiboost.
User Comment
Submitted by algorithm on 18 July 2010
Well. This is only a quarter the size or so of c64mp3 so worse quality is to be expected. I have uploaded a slightly higher bitrate version (which only uses 3k more (13k total compressed)
Fitting this speech in a higher space would increase quality even more dramatically
User Comment
Submitted by Groepaz on 18 July 2010
i can barely recognize anything :) so far C64MP3 wins in every aspect =P
User Comment
Submitted by algorithm on 18 July 2010
2 minutes of audio in 10k, i would guess no one would expect miracles. certainly is compressed extremely heavily
User Comment
Submitted by iAN CooG on 18 July 2010
probably too much compressed, sounds too bad =)
User Comment
Submitted by algorithm on 18 July 2010
Proof of concept. I have developed an audio compressor which is specifically designed to compress data that is 'easy' and non-processor intensive to decompress.
The example here is speech at 0.5kbs. (2 mins long) there is a silent gap half way through)
The audio track is the acapella version of 'n-trance - set you free'
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