CA2157518A1 - Assymetrical wall enclosure loudspeaker - Google Patents
Assymetrical wall enclosure loudspeakerInfo
- Publication number
- CA2157518A1 CA2157518A1 CA002157518A CA2157518A CA2157518A1 CA 2157518 A1 CA2157518 A1 CA 2157518A1 CA 002157518 A CA002157518 A CA 002157518A CA 2157518 A CA2157518 A CA 2157518A CA 2157518 A1 CA2157518 A1 CA 2157518A1
- Authority
- CA
- Canada
- Prior art keywords
- ths
- assymetrical
- walls
- loudspeaker
- wall enclosure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
In enclosures for loudspeakers it is the norm that they are constructed of six sides that are symetrical. The top is parallel to the bottom;the sides are parallel to one another as is the front and back. Loudspeaker enclosures that are constructed of curved or rounded walls do exist as do enclosures that have four assymetrical walls. In this invention,all the walls of the loudspeaker enclosure are assymetrical. That is the top is non parallel to the bottom, the sides are non parallel to each other as is the front and back.
Description
2~7~18 SPECI~ICATION
This invention relatss spscifically to ths manufacturs of loudspeal~srs for audio and vidso uss.
rhs naturs in general terms of ths loudspesker snclosurss pr~viously known ars constructsd from flst plansd walls ninsty dsgrses to each othsr.rhs walls of ths snclosurss ars parallsl to one anothsr.This construction is responsible for ths crsation of standing wavss or sigentones within ths snclosure.This is undesirabls.~ sound wavs has a positivs portion starting at O
degrsss to 1~0 dsgrsss and a negativs portion starting at 130 degrsss.If ths positive portion of the wavs (i.s.comprsssion) mssts ths nsgativs portion( i .8 .rarsfaction ) then ths wavss will combins and will be out of phase relativs to ~ach other.Likswise, if ths positivs portion of the wavs mssts anothsr Positive portion of the wave then ths waves ars in phass rslativs to each othsr.Pt locations within ths loudspeaksr snclosurs whers ths sound waves srs in phass ( i ,8 . the waves reinforcs each othsr ) ths sound will bs inordinatsly loud(i.s. the high pressurs ~ons).Likswiss, at locations ln ths snclo~-lre whers ~hs sound wavss are out of phase ( ons bsing positive and tl~a other bsing nsgative ) ths sound wavss will cancel ssch othsr out and no sound will be hsard( a low or no prsssure zone ) .
Thers exists thrse typss of standing wavss that affsct all prsviously manufactursd luudspeaker snclosures.rhs first and most Powsrful is the axial standing wavs.The axial standing wavs involvss 21~7518 only two enclosure walls that ars parallel.Next in ordsr of strsngth is the tangential standing wave which involves four enclosurs walls This type of standing wave has only half ths ensrgy of an axial wave (3db down~.The last and least powerful type of standing wave is ths ~-il,llque which involvss 5iX enclosure ~lls and has only ons foutth the snsrgy of the axial wave~ 6 db down ) .
Ths sonic dsgradation due to ths crsation of standing waves within existing loudspsaker snclosure can bs overcome bY constructing a loudspeaker enclosure that i3 composed entirely of assymetrical walls.
Fig.l and fig.~ illustrate that this loudspeaksr snclosure has no two walls parallel to ons anothar and thsrefore eliminates ths creation of standing waves within its snclosurs.
This assymstrical wall enclosurs can be constructsd to anY si2:e or for any typs of audio loudspsaksr.It can bs constructed out of any materials currently being ussd for loudspsaksr enclosurss with assembly tschni~ues being the sams or vsry similiar to those being now employsd.Ths chisf diffsrsncs bsing that this invsntion involvss using at most onlY ons wall angle of ninety dagrsss.All othsr wall angles will bs less or greatsr than ninsty dssrsss. --
This invention relatss spscifically to ths manufacturs of loudspeal~srs for audio and vidso uss.
rhs naturs in general terms of ths loudspesker snclosurss pr~viously known ars constructsd from flst plansd walls ninsty dsgrses to each othsr.rhs walls of ths snclosurss ars parallsl to one anothsr.This construction is responsible for ths crsation of standing wavss or sigentones within ths snclosure.This is undesirabls.~ sound wavs has a positivs portion starting at O
degrsss to 1~0 dsgrsss and a negativs portion starting at 130 degrsss.If ths positive portion of the wavs (i.s.comprsssion) mssts ths nsgativs portion( i .8 .rarsfaction ) then ths wavss will combins and will be out of phase relativs to ~ach other.Likswise, if ths positivs portion of the wavs mssts anothsr Positive portion of the wave then ths waves ars in phass rslativs to each othsr.Pt locations within ths loudspeaksr snclosurs whers ths sound waves srs in phass ( i ,8 . the waves reinforcs each othsr ) ths sound will bs inordinatsly loud(i.s. the high pressurs ~ons).Likswiss, at locations ln ths snclo~-lre whers ~hs sound wavss are out of phase ( ons bsing positive and tl~a other bsing nsgative ) ths sound wavss will cancel ssch othsr out and no sound will be hsard( a low or no prsssure zone ) .
Thers exists thrse typss of standing wavss that affsct all prsviously manufactursd luudspeaker snclosures.rhs first and most Powsrful is the axial standing wavs.The axial standing wavs involvss 21~7518 only two enclosure walls that ars parallel.Next in ordsr of strsngth is the tangential standing wave which involves four enclosurs walls This type of standing wave has only half ths ensrgy of an axial wave (3db down~.The last and least powerful type of standing wave is ths ~-il,llque which involvss 5iX enclosure ~lls and has only ons foutth the snsrgy of the axial wave~ 6 db down ) .
Ths sonic dsgradation due to ths crsation of standing waves within existing loudspsaker snclosure can bs overcome bY constructing a loudspeaker enclosure that i3 composed entirely of assymetrical walls.
Fig.l and fig.~ illustrate that this loudspeaksr snclosure has no two walls parallel to ons anothar and thsrefore eliminates ths creation of standing waves within its snclosurs.
This assymstrical wall enclosurs can be constructsd to anY si2:e or for any typs of audio loudspsaksr.It can bs constructed out of any materials currently being ussd for loudspsaksr enclosurss with assembly tschni~ues being the sams or vsry similiar to those being now employsd.Ths chisf diffsrsncs bsing that this invsntion involvss using at most onlY ons wall angle of ninety dagrsss.All othsr wall angles will bs less or greatsr than ninsty dssrsss. --
Claims
CLAIM
This invention eliminates-standing waves within a loudspeaker enclosure by constructing the loudspeaker enclosure with flat planed assymetrical walls.
This invention eliminates-standing waves within a loudspeaker enclosure by constructing the loudspeaker enclosure with flat planed assymetrical walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002157518A CA2157518A1 (en) | 1995-10-28 | 1995-10-28 | Assymetrical wall enclosure loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002157518A CA2157518A1 (en) | 1995-10-28 | 1995-10-28 | Assymetrical wall enclosure loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2157518A1 true CA2157518A1 (en) | 1997-04-29 |
Family
ID=4156545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002157518A Abandoned CA2157518A1 (en) | 1995-10-28 | 1995-10-28 | Assymetrical wall enclosure loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2157518A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10462562B1 (en) * | 2017-11-15 | 2019-10-29 | Todd F. Rady | Prime polygon reflectors and methods of use |
| US11128951B1 (en) * | 2018-11-13 | 2021-09-21 | Todd F. Rady | Prime polygon reflectors and methods of use |
-
1995
- 1995-10-28 CA CA002157518A patent/CA2157518A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10462562B1 (en) * | 2017-11-15 | 2019-10-29 | Todd F. Rady | Prime polygon reflectors and methods of use |
| US11128951B1 (en) * | 2018-11-13 | 2021-09-21 | Todd F. Rady | Prime polygon reflectors and methods of use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 19981028 |