CN1276696A - Intensifying system for dual-channel sound - Google Patents
Intensifying system for dual-channel sound Download PDFInfo
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- CN1276696A CN1276696A CN 99108001 CN99108001A CN1276696A CN 1276696 A CN1276696 A CN 1276696A CN 99108001 CN99108001 CN 99108001 CN 99108001 A CN99108001 A CN 99108001A CN 1276696 A CN1276696 A CN 1276696A
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Abstract
A dual-channel stereo sound system with intensified audio-video location and ambient sound effects features that the signals from left and right channels respectively passes through multiple frequency and phase shift processor, equalizer and stereo difference processor, and the output amplitudes of the signals from left and right and intensified by variable gain regulation are added to obtain intensified 3D stereo sound.
Description
The enhancement process system of the relevant a kind of three-dimensional dual track sound equipment of the present invention, phonotape and videotape location and Environmental Audio Extension particularly relevantly a kind ofly can constitute the left and right passage of sound system the treatment system that three-dimensional phonotape and videotape location strengthens, Environmental Audio Extension strengthens and reach 3D stereo sound effect stiffening effect.
Because prosperity of economy, sound equipment has become general electrical home appliances in general family, but general sound system has only stereosonic effect usually, if desire with it via strengthening to reach Environmental Audio Extension or 3D stereo sound effect, then need be not low via the repacking and the price of specialty, the audiophilia is stepped back.
Main purpose of the present invention, promptly in the enhancement process system that a kind of three-dimensional dual track sound equipment, phonotape and videotape location and Environmental Audio Extension are provided, mainly be that left and right passage with sound system is respectively via after the particular processing, reaching three-dimensional phonotape and videotape location and Environmental Audio Extension strengthens, output amplitude after again will this left and right passage strengthening with the variable gain stages adjustment respectively, and give addition, to obtain 3D stereo sound effect stiffening effect.
Aforesaid treatment system independently is respectively LC, LS and RC, RS two passages with left and right passage, and wherein LC, RC are defined as three-dimensional phonotape and videotape location enhanced system, and LS, RS then are defined as really enhanced system of Environmental Audio Extension.
The aforementioned processing system, LC, RC is respectively independent of a multiple frequency phase-shift processing device, a balanced eqalizing cricuit and another multiple frequency phase-shift processing device, and in processing procedure, do not exist and differ from and handle and constitute three-dimensional phonotape and videotape and locate enhancement process.
Aforesaid multiple frequency phase-shift processing device can allow the interior phase shift of any frequency band being done-180 °～+ 180 ° of 20HZ～40KHZ frequency band.
Aforesaid balanced eqalizing cricuit can be adjusted the increase and decrease of any frequency band amplitude and slope arbitrarily in-20HZ～40KHz frequency range.
Aforesaid three-dimensional phonotape and videotape location enhancement process system, in handling process, does not all have and with the processing that differs from.
The aforementioned processing system, with LS, RS respectively by multiple frequency phase-shift processing device, three-dimensional difference signal processor, balanced eqalizing cricuit and composing environment audio enhancement process.
Aforesaid 3D stereo sound effect stiffening effect, adjusting three-dimensional phonotape and videotape location respectively with variable gain stages increases and handles and Environmental Audio Extension increases LC, LS and RL, RS after handling, and it is obtained by addition.
Aforesaid LC, LS and RC, RS can handle to obtain false stereo sound effect in differing between the phase shift of multiple frequency phase-shift processing device more than 90 °.
Main feature of the present invention and novelty thereof, will be below cooperating appended graphic embodiment detailed description and more become clear, as shown in the figure:
Fig. 1 is a three-dimensional phonotape and videotape of the present invention location enhancement process system block diagrams.
Fig. 2 is an Environmental Audio Extension enhancement process system block diagrams of the present invention, saddle, guide channel schematic diagram.
Fig. 3 is a 3D stereo sound effect stiffening effect treatment system calcspar of the present invention.
See also Fig. 1, three-dimensional phonotape and videotape of the present invention location enhancement process system 1 mainly comprises a three-dimensional multiple frequency phase-shift processing device 11, one three-dimensional balanced eqalizing cricuit 12, wherein, this multiple frequency phase-shift processing device 11 allows the interior phase shift of any frequency band being done-180 °～+ 180 ° of 20HZ～40KHZ frequency band, this eqalizing cricuit 12 then can be adjusted the increase and decrease of any frequency band amplitude and slope arbitrarily in 20HZ～40KHZ frequency range, make LC, the RC signal is respectively by behind this processor 11 and the eqalizing cricuit 12, again respectively by another multiple frequency phase-shift processing device 11, make LC and RC after the processing be defined as LC ' and RC ', and does not all have in this LC ' and RC ' and the aforementioned processing process and with the processing of difference, locate enhancement process to constitute three-dimensional phonotape and videotape.
See also Fig. 2, Environmental Audio Extension enhancement process of the present invention system 2, mainly comprise three-dimensional multiple frequency phase-shift processing device 11, three-dimensional balanced eqalizing cricuit 12 and three-dimensional difference signal processor 13, wherein, this multiple frequency phase-shift processing device 11 is with LS, any frequency band of RS signal is done-180 °～+ 180 ° phase shift, the any amplitude signal of LS after should solid difference signal processor 13 then will handling and any amplitude signal of RS are subtracted each other, make its amplitude of subtracting each other become to adjust state, this LS and RS still keep respectively independently three-dimensional signal, signal after will handling again independently can be adjusted the balanced eqalizing cricuit 12 of any frequency band amplitude and slope increase and decrease respectively in input-20HZ～40KHZ frequency range arbitrarily, make the independent respectively input one three-dimensional difference signal processor 13 of signal after the processing again, import a multiple frequency phase-shift processing device 11 more respectively, make the signal after the processing independently be defined as LS ' and RS ' respectively, composing environment audio enhancement process.
As shown in Figure 3, aforesaid LC, LS and RC, RS signal can be adjusted its independent respectively input variable gain stages 14 output amplitude of LC ', LS ' and RL ', RS ', make LC ' and LS ' addition after the processing, and handle back RC ' and RS ' addition, make any kind of loud speaker all can obtain significant 3D stereo sound effect stiffening effect.
Again, the phase shift of the multiple frequency phase-shift processing device 11 in aforesaid LC and the LS passage processing procedure differs more than 90 ° without exception and between multiple frequency phase-shift processing device 11 phase shifts among the RC, RS passage processing procedure, can obtain to make tone signal to form the purpose of false stereo sound effect treatment system, and the phase difference between the multiple frequency phase-shift processing device of adjustment L, R can obtain the adjustment of false stereo sound effect degree.
Aforesaid embodiment is explanation example of the present invention, and non-be the processing method of unique formation function of the present invention, generally with the numerical digit signal processing mode, and the application of reaching with identical flow process, or all should be encompassed in spiritual scope of the present invention via modification, conversion.
Claims (5)
1, the enhancement process system of a kind of three-dimensional dual track sound equipment, phonotape and videotape location and Environmental Audio Extension mainly comprises:
Signal is respectively independent of a multiple frequency phase-shift processing device, a balanced eqalizing cricuit and another multiple frequency phase-shift processing device all with LC, RC, and makes and does not all have in the processing procedure and with poor, locate enhancement process to constitute three-dimensional phonotape and videotape;
LS, RS channel signal is independent respectively by two multiple frequency phase-shift processing devices, two three-dimensional difference signal processors, a balanced eqalizing cricuit, with composing environment audio enhancement process system; And
With aforementioned LC, LS and RC, RS respectively independent input can two gain stages adjust output amplitude after phonotape and videotape location enhancement process and the Environmental Audio Extension enhancement process, and make the output signal addition after the processing, to obtain 3D stereo sound effect stiffening effect.
2, treatment system as claimed in claim 1, wherein, this multiple frequency phase-shift processing device allows in 20HZ～40KHz frequency band any frequency band done-180 °～+ 180 ° phase shift.
3, treatment system as claimed in claim 1, wherein, this equilibrium eqalizing cricuit can be adjusted any frequency band amplitude and slope increase and decrease arbitrarily in-20HZ～40KHZ frequency range.
4, treatment system as claimed in claim 1, wherein, this LC, LS and RC, RS can make between its phase shift to differ more than 90 ° in the processing procedure of multiple frequency phase-shift processing device, make tone signal form false stereo sound effect treatment system.
5, treatment system as claimed in claim 4, wherein, this vacation stereo sound effect treatment system can obtain the adjustment of false stereo sound effect degree by the phase difference between multiple frequency phase-shift processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991080017A CN1149899C (en) | 1999-06-04 | 1999-06-04 | Intensifying system for dual-channel sound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991080017A CN1149899C (en) | 1999-06-04 | 1999-06-04 | Intensifying system for dual-channel sound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1276696A true CN1276696A (en) | 2000-12-13 |
| CN1149899C CN1149899C (en) | 2004-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991080017A Expired - Fee Related CN1149899C (en) | 1999-06-04 | 1999-06-04 | Intensifying system for dual-channel sound |
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| Country | Link |
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| CN (1) | CN1149899C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019104850A1 (en) | 2019-02-26 | 2020-08-27 | Wirtgen Gmbh | Paver |
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1999
- 1999-06-04 CN CNB991080017A patent/CN1149899C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1149899C (en) | 2004-05-12 |
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