Full Digital Speaker - Page 4

jackpipe · 19th March 2009, 03:24 AM

I know this is only vaguely related, and I don't know if such a think exists, but is it not possible to produce a direct digital speaker driver, by having multiple coils? Eg for a 16 bit speaker, you'd have 16 coils, with 1 turn, 2 turns, 4 turns, 8 turns, etc. Or simply have identical coils, but drive them with successively larger voltages/current?

phase_accurate · 19th March 2009, 07:58 AM

In the January/February 09 issue of JAES is an article about such a system.

Regards

Charles

jackpipe · 19th March 2009, 10:23 AM

There goes my chance to "invent" something then. Drat. Surely this isn't a new idea, is the JAES paper focusing more on the signals required to get good quality from such a system, rather than the idea itself being novel (ie a single cone with multiple coils).

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19th March 2009, 03:24 AM	#31
jackpipe diyAudio Member Join Date: Mar 2007	I know this is only vaguely related, and I don't know if such a think exists, but is it not possible to produce a direct digital speaker driver, by having multiple coils? Eg for a 16 bit speaker, you'd have 16 coils, with 1 turn, 2 turns, 4 turns, 8 turns, etc. Or simply have identical coils, but drive them with successively larger voltages/current?

19th March 2009, 07:58 AM	#32
phase_accurate diyAudio Member Join Date: May 2002 Location: Switzerland	In the January/February 09 issue of JAES is an article about such a system. Regards Charles

19th March 2009, 10:23 AM	#33
jackpipe diyAudio Member Join Date: Mar 2007	There goes my chance to "invent" something then. Drat. Surely this isn't a new idea, is the JAES paper focusing more on the signals required to get good quality from such a system, rather than the idea itself being novel (ie a single cone with multiple coils).

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