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Halph-Price 
Zombie Algorithm
Registration Date: 22-12-2004
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29-01-2005 03:41 |
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dirk
Steppa
Registration Date: 14-11-2004
Posts: 184
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Try this link
Celtic Audio or this John Watkinson on loudspeakers
Then surf to technical articles and click on "putting the science back into loudspeakers" download as pdf.
The website is www.celticaudio.com
I think everyone interested in creating music can learn something from this . It was an eye opener for me anyway .
If anyone doesn't understand something from this article I wil try to explain , just ask I don't think you wil be the only one .
Greetings Dirk .
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29-01-2005 07:54 |
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This is way over my head !!!
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Megalomania Rules!!!
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30-01-2005 15:22 |
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dirk
Steppa
Registration Date: 14-11-2004
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The ear measures the time difference of the trancient of a sound and by that determines the lokation of the sound .
The decay of the trancient determines the size of the sound . ( if the sound source is big the sound from one side wil travel longer than from the other side so the trancient will be smeared out in time )
So the trancient is wat determents the lokation and size of a sound !!!
Because most loudspeakers are vented and/or cubic and their crossovers are not propperly designed they can't reproduce the trancient anymore .
Compressors also change the trancient of a sound .
So most loudspeakers work as compressors , if you use a compressor to shape the sound are you listening to the compressor or are you listening to the speaker effect ? There's no way of knowing .
Soundcompression codecs like mp3 or bitrate redusers also change the original sound . If you hear a change in sound do you hear the speaker or codec ?
If the codec has high bitrate the speaker wil be the limiting factor , if the codec has low bitrate the codec wil be the limiting factor .
This means that you can express the quality of a loudspeaker in equivalent bitrate !!!
You can test this by taking a CD put it through a bitcrusher and listen when you hear the sound change . My pc-speakers are about 9 bits , my Yamaha ns10-m 11 bit 
Ferrite magnets can't get 16 bit resolution !!!( The magnetic field moves opposite to the conus , like jumping in loose sand instead of rockstone )
But with good engeneering we can make loudspeakers whitch have more resolution than our ears and so we can't here the difference between real sound and reprodused sound .
I hope this explains things a bit . And I think that produsers/musisians should know this .
Greetings Dirk .
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01-02-2005 20:25 |
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tetsuo
Guiness factory
Registration Date: 26-12-2004
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mp3 is a compress file system, so you won't ears the hight end and the low pass sound by the way, nothing to do withyours spezakers set up, make any sense?
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Yesterday' s futur is today!! 
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01-02-2005 21:58 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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won't anyone think of the children?
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01-02-2005 22:00 |
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tetsuo
Guiness factory
Registration Date: 26-12-2004
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we all think about them, the eath is not what we got from our parents, it's something we borrow from our childrens!!!
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Yesterday' s futur is today!!
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01-02-2005 22:04 |
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dirk
Steppa
Registration Date: 14-11-2004
Posts: 184
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| quote: |
| mp3 is a compress file system, so you won't ears the hight end and the low pass sound by the way, nothing to do withyours spezakers set up, make any sense? |
Mp3 reduces the bitrate of a signal .
The point at wich you hear a signal deteriorare is a measure for the resolution of the loudspeaker .
Most of you can hear the difference between MP3's of 128kbit/sec or 56kbit/sec
If you can't hear the difference between a cd and eg. mp3 of 320kbit/sec your loudspeaker has lower resolution than 320kbit/sec.
I hope this clears things up .
Greetings Dirk .
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02-02-2005 07:06 |
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dirk
Steppa
Registration Date: 14-11-2004
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My explanation about the size of a sound is not correct !!!
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Following the production of a trancient pressure step by a real sound source , the sound pressure must equalise back to ambient .
The rate at which this happens is a funktion of the phisical size of the source . |
This means that the total decay of the sound is a meassure of size . Am I correct ?
I don't understand this , can someone please explain .
Greetings Dirk .
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02-02-2005 10:21 |
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stino
Player
Registration Date: 13-07-2003
Posts: 308
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I think I know what is explained
you have to know this:
fysically, sound is a "pressure" brought to your ears, and the difference in pressure is a volume change. our ears "hear" a pressure.
if you hear nothing , it's because the pressure is less than 10^-5 Pa
maybe it's that...
dunno...
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www.myspace.com/stinomg
www.myspace.com/circlelogicband
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02-02-2005 11:15 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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DEATH TO THE HEATHENS!
so get good speakers, or all you'll hear is crap.
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02-02-2005 15:15 |
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Surya
The Robot
Registration Date: 04-11-2002
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But the crap will still sound better than the same crap being played on a crap system 
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"In dnb you should make people jump not swim"
- Pieter Frenssen 2004
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02-02-2005 15:46 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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03-02-2005 13:03 |
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BigFire
Cool Producer
Registration Date: 09-01-2005
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Wait until you start learning about Sample rates and bit Rates. And after that Fluid dynamics and Signal delays. Ohh The Never ENDING World of music!!!!
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Where's the fucking bass??!!
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03-02-2005 15:24 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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i am thinking about taking classes in msuic instaed. seeing as i love music production, and want to get better.
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03-02-2005 18:49 |
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Halph-Price
Zombie Algorithm
Registration Date: 22-12-2004
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HOW DOES THIS IMPLICATE IN A PRACTICALE TERM 
)
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04-02-2005 03:22 |
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dirk
Steppa
Registration Date: 14-11-2004
Posts: 184
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I apologi(s)(z)e for my spelling , sorry Deamon79 . 
It's the ADSR that got me confused , but I was right the first time .
If you think of a pointsource that emits a dirac pulse ( infinitely small pulse ) you will hear that pulse as it was transmited, but if the source has dimentions the sound will be emited by a volume and this means that the sound will travel different distances and the pulse will be spread out .
So if you want to make a sound bigger make the decay longer !!!
Greetings Dirk .
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04-02-2005 07:55 |
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dirk
Steppa
Registration Date: 14-11-2004
Posts: 184
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| quote: |
| HOW DOES THIS IMPLICATE IN A PRACTICALE TERM |
1 The loudspeaker should have no amplitude artifacts in the frequencydomain . ( most speakers do this )
2 The acoustical signal transmitted by the loudspeaker should be proportional to the electrical signal at the input of the speaker . This is lineair phase . ( few speakers do this )
3 The speaker should be omnidirectional or have at least frequency independant polar responce , so that the reflections of the room have the same timbre as the direct signal . ( just a handful of speakers do this )
4 The loudspeaker should have more resolution than our ears . ( no speakers today can do this )
I'm saving for the Celtic Audio Cabar loudspeaker . ( It will take a few years though .... )
Greetings Dirk .
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04-02-2005 08:36 |
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