200932020 九、發明說明： 【發明所屬之技術領域】 本發明係為一種產生揚聲器共振式音箱參數之系統。 【先前技術】 視聽產品的外觀、尺寸、重量、音質與音效的表現， 除了揚聲器本身的設計之外，揚聲器共振式音箱的設計亦 會影響聲音訊息的表現。 第一圖為揚聲器共振式音箱的結構示意圖，揚聲器共 振式音箱1係以一矩形的外殼10形成一腔體11，並在外殼10 之一面形成一揚聲器孔12與一出音孔13，而在出音孔13處 係向腔體11延伸一導音管14。揚聲器係置放於腔體11内， 且揚聲器之音訊可由揚聲器孔12向外發出。在視聽產品的 產業中，揚聲器共振式音箱1的結構已屬於習知的結構，但 是對於視聽產品聲音訊息的表現優劣，除了揚聲器的設計 之外，配合適當的揚聲器共振式音箱參數設計，往往成為 音色表現的關鍵所在。其中，揚聲器共振式音箱參數包括 出音孔半徑大小、導音管的長度尺寸與腔體體積等。 為了能快速因應各式各樣的視聽電子產品與行動可攜 式裝置，提供出各種各類適合的、最佳的揚聲器共振式音 箱，專業的設計成員或設計小組們，往往需要日以繼夜的 奮鬥不懈。這不僅代表了沈重的工作壓力，更代表了高額 的成本負擔。然而，電子產業的嚴峻現實竟是極為短暫的 產品生命周期與萬般嚴苛的價格與成本的市場競爭。 5 200932020 職是’本案發明人為避免上述現有揚聲料 从 設計耗時費日的現象，並且重視輪出音色表現與視 輕薄化的趨勢，欲由問題根本著手，以解決因緊 操作疏乎而可能造成或衍生出來的危險與傷害，琢=、 研究並配合學理之運用與長時間的試樣製作血謎給。 提出1產生揚聲器共振式音箱參數之系統/，、可 Ο200932020 IX. Description of the Invention: [Technical Field of the Invention] The present invention is a system for generating parameters of a speaker resonance type speaker. [Prior Art] The appearance, size, weight, sound quality and sound performance of audio-visual products, in addition to the design of the speaker itself, the design of the speaker resonant speaker will also affect the performance of the sound message. The first figure is a schematic structural view of a speaker resonance type speaker. The speaker resonance type speaker 1 is formed into a cavity 11 by a rectangular outer casing 10, and a speaker hole 12 and a sound hole 13 are formed on one surface of the outer casing 10, and At the sound hole 13 is extended a sound tube 14 to the cavity 11. The speaker system is placed in the cavity 11, and the audio of the speaker can be emitted outward from the speaker hole 12. In the industry of audio-visual products, the structure of the speaker resonance speaker 1 is a well-known structure, but for the performance of audio and video products, in addition to the design of the speaker, with the appropriate speaker resonance speaker parameter design, often become The key to the performance of the tone. Among them, the speaker resonance speaker parameters include the sound hole radius, the length of the sound tube and the volume of the cavity. In order to quickly respond to a wide range of audio-visual electronic products and mobile portable devices, a variety of suitable and best speaker resonance speakers are available. Professional design members or design teams often need to work around the clock. . This not only represents a heavy work pressure, but also represents a high cost burden. However, the grim reality of the electronics industry is extremely short-lived product life cycles and market competition with rigorous price and cost. 5 200932020 is the 'inventor of this case to avoid the phenomenon that the above-mentioned existing sounding materials are time-consuming and costly from design, and pay attention to the trend of the sound of the sound and the thinness of the light, and the problem is to start from the problem to solve the problem of the tight operation. Dangers and injuries that may be caused or derived, 琢 =, research and use of the use of academics and long-term sample making blood puzzles. Propose 1 system for generating speaker resonance speaker parameters, / can be
應用情況、吸振器理論與系統特徵方程式，而 ^ 出最佳的出音孔半徑大小、導音管的長収讀腔 。藉此’不但可以減少產品設計開發的難度，降低外 計人員的技術門檻，大幅降低開發時間與成本，‘ σσοχ 揚聲器之低頻音訊輸出’是-合理且能有效改善上 之發明。 I职天 【發明内容】 本發明之目的係在於提供-種產生揚聲器共振 參數之线’可依據吸㈣理論、共振式音箱特 ^目 與實際設計目標，而運算出最佳的出音孔半徑大 ^ 管的長度尺寸與腔體體積。藉此，非經專業^裊二導θ ==夠簡便而快速地設計出可供各式揚聲 本發明之另一目的係在於提供一種產生揚聲器共振式 音箱參數之系統，可依據吸振器理論、共振式音箱特 程式與實際設計目標，而運算出最佳的出音孔半徑大小、 導音管的長度尺寸與腔體體積。藉此，可使得由揚聲器發 200932020 =頻=化:=確地延伸至設計目標所預期的頻 為達成上二揚頻:音訊息。 之系統:以藉由定義-低頻延伸頻率、 Ο 頻率及一機械夸==徑取並在固定-機械系統的共振 職⑽質罝下，取得-頻率比、—導音普集择 一了腔體容積’該產生揚聲器共振式音箱參數 = 統的共振頻率，以得到一初始正規化頻；頻 置質量比及該機械系㈣量， “ϊΐίΐ产藉由該聲學質量及該出音孔的半徑 率及該質量比，以得到該頻率n==頻 ί統=械系統的共振頻率及該頻率比.:得= 、.、先八振頻率，以及一腔體容積裝置，Application, shock absorber theory and system characteristic equation, and ^ the best sound hole radius, the long reading cavity of the sound tube. This will not only reduce the difficulty of product design and development, reduce the technical threshold of foreign personnel, and significantly reduce development time and cost. ‘ σσοχ The low-frequency audio output of the speaker is a reasonable and effective improvement. I. The purpose of the present invention is to provide a line that produces a resonance parameter of a speaker. The optimal sound hole radius can be calculated according to the suction (four) theory, the resonance type of the speaker and the actual design target. The length dimension of the tube and the volume of the cavity. Therefore, the other purpose of the present invention is to provide a system for generating speaker resonance type speaker parameters, which can be based on the theory of vibration absorbers. The resonant speaker program and the actual design goal, and calculate the optimal sound hole radius, the length of the sound tube and the volume of the cavity. In this way, it can be made by the speaker 200932020 = frequency = chemical: = indeed extended to the frequency expected by the design target to achieve the upper two frequency: sound message. The system: by definition - low frequency extension frequency, Ο frequency and a mechanical exaggeration = = diameter and in the fixed-mechanical system resonance position (10) mass ,, to obtain - frequency ratio, - the guide of the general selection of the cavity Body volume 'This produces the speaker resonance speaker parameter = the resonant frequency of the system to obtain an initial normalized frequency; the frequency-to-mass ratio and the amount of the mechanical system (4), "ϊΐίΐ produces the acoustic mass and the radius of the sound hole Rate and the mass ratio to obtain the frequency n==frequency = the resonant frequency of the mechanical system and the frequency ratio.: get =, ., first eight vibration frequency, and a cavity volume device,
G :頻率得到-聲學順性，再藉由該聲學順性:到;= 【實施方式】 為了使貴審查委員能更進一步瞭解 定目的所採取之技術、手段及功效 預 =說明與附圖’相信本發明之目的、特; 考與說明用，並非用來對本發明加以限制者。徒供參 7 200932020 本發明係提出-種產生揚聲器共振式音箱參數之系 統，以在定義揚聲器共振式音箱所需求的—低頻延伸頻 率、-質置比及一出音孔的半徑下，藉由固定的一機械系 統的共振頻率及一機械系統質量，取得一頻率比、一導音 f長度及—腔體容積等產生揚聲器共振式音箱的參數。以 • 減少視聽產品設計開發的難度，降低開發時間與成本。 第二圖係為轉化第一圖的電路示意圖，在揭露本發明 〇 的產生揚聲器共振式音箱參數之系統之前，必須先藉由第 二圖模擬列出相關之聲學方程式，開始聲學系統的推導， 以便說明低頻延伸頻率、質量比及出音孔的半徑與揚聲器 共振式音箱的參數之間的特定關係。請同時參照第一圖及 第二圖’腔體11部分可由聲學順性（acoustic compliance) C45來模擬’導音管14可由聲學質量（acoustic mass) 以 及聲學電阻(acoustic resistance) Λμρ來模擬，相關計算如 下所示： ❾ C -Ws — Vab P〇c2 ⑴ ^ΑΒΡ = -^-Ιτρ svp (2) R -1VABP - :今7^(^ + 2 πανρ \ανρ ^ (3) 其中，Α為空氣密度、C為聲速、6s為腔體11容積、 8 200932020 I代表出音孔13面積、‘為導音管14長度、〜為出音孔 13半徑、ω為固定範圍角頻率及//為動態黏滯係數，在空 氣 20°C 及 0.76m Hg 時，μ =1.56 X 10-5 m2/s，而固定範 圍角頻率ω=2ττί，固定範圍頻率f在20〜20kHz之間。其 次，聲學輻射阻抗(radiation impedance)如聲學質量MAB1、 聲學電阻RaBI、足452 及聲學順性 等，可表不如下： 〇 ^AB\ 0.6133/?。 dyp (4) ^AB\ = 0.5045/?〇c πα2νρ (5) ^AB2 = .P〇c (6) ^AB\ = 0.55π2α^ρ P〇c2 ⑺ 若不考慮出音孔13的電阻效應，而將電系統與聲學系 統等效至機械系統，則第二圖之電路可化簡成如第三圖所 示的機械系統等效電路。第三圖係形成機械與聲學兩個共 振系統的形式，這兩個共振系統的特性可由吸振器 (vibration absorber)理論做分析，因此其機械阻抗可表 示成以下形式： 9 200932020 Ζμ :Mms + RmG: The frequency is obtained - acoustically compliant, and then by the acoustic compliant: to; = [Embodiment] In order to enable the reviewing committee to further understand the purpose of the technology, means and effects of the pre-description and drawings It is intended that the subject matter of the invention, The invention is directed to a system for generating speaker resonance speaker parameters for defining the low frequency extension frequency, the mass ratio and the radius of a sound hole required by the speaker resonance speaker. The resonant frequency of a fixed mechanical system and the quality of a mechanical system achieve a frequency ratio, a length of the sound guide f, and a cavity volume to generate parameters of the speaker resonance type speaker. To reduce the difficulty of designing and developing audiovisual products and reduce development time and cost. The second figure is a circuit diagram for converting the first figure. Before exposing the system for generating the parameters of the speaker resonance type speaker of the present invention, the deduction of the acoustic system must be started by simulating the relevant acoustic equations by the second figure. In order to explain the specific relationship between the low frequency extension frequency, the mass ratio and the radius of the sound hole and the parameters of the speaker resonance speaker. Please refer to both the first figure and the second figure. 'The cavity 11 part can be simulated by acoustic compliance C45'. The sound tube 14 can be simulated by acoustic mass and acoustic resistance Λμρ. The calculation is as follows: ❾ C -Ws — Vab P〇c2 (1) ^ΑΒΡ = -^-Ιτρ svp (2) R -1VABP - :Now 7^(^ + 2 πανρ \ανρ ^ (3) where Α is air Density, C is the speed of sound, 6s is the volume of the cavity 11, 8 200932020 I represents the area of the sound hole 13 , 'the length of the sound tube 14 , ~ the radius of the sound hole 13 , ω is the fixed range angular frequency and / / dynamic The viscous coefficient is μ = 1.56 X 10-5 m2/s at 20 ° C and 0.76 m Hg, while the fixed range angular frequency ω = 2ττί, the fixed range frequency f is between 20 and 20 kHz. Secondly, acoustic radiation Radiation impedance such as acoustic mass MAB1, acoustic resistance RaBI, foot 452 and acoustic compliant can be expressed as follows: 〇^AB\ 0.6133/?. dyp (4) ^AB\ = 0.5045/?〇c πα2νρ ( 5) ^AB2 = .P〇c (6) ^AB\ = 0.55π2α^ρ P〇c2 (7) If the resistance effect of the sound hole 13 is not considered, While the electrical system and the acoustic system are equivalent to the mechanical system, the circuit of the second figure can be simplified into the mechanical system equivalent circuit as shown in the third figure. The third figure forms the form of two resonance systems of mechanical and acoustic, which The characteristics of the two resonance systems can be analyzed by the theory of vibration absorbers, so the mechanical impedance can be expressed in the following form: 9 200932020 Ζμ : Mms + Rm
s ‘ 1 λ* -2 +--+ 1 ^MS ⑻ Ο 其中’ mm為機械系統質量、 z A ^ .,is w & 从马機械系統電阻、CM 為機械^順性、〜為機㈣統共㈣頻率㈣。職⑶ angular frequency)及么為機械系統品質因子如 factor)。而聲學導納（admittanee)L可表示成以下形式： rA=cABs +^-+-1-=^V_Sl5 RA ^Ass ' 1 λ* -2 +--+ 1 ^MS (8) Ο where 'mm is the mechanical system mass, z A ^ ., is w & from the mechanical system resistance of the horse, CM is the mechanical compliant, ~ for the machine (four) The total (four) frequency (four). (3) angular frequency) and what is the mechanical system quality factor such as factor). The acoustic admittance L can be expressed in the following form: rA=cABs +^-+-1-=^V_Sl5 RA ^As
Mas (9) 其中AG為聲學質量、為聲學電阻、為聲學順 性、％為聲學系統共振角頻率及仏為聲學系統品質因子。 而第三圖整體之阻抗厶可表示成如下： ❹ ΖΓ =： Z W + —: Μ ΥΑ △ (5) (10) 其中’△(·?)為系統之特徵方程式（characteristic equation)，可表示為： △W: X—「- — "t" 1 || 11 - -j- 一 ·_ ωΜ Qm (〇m A〇}a2 Qa ωΑ + MaC^s2 01) 200932020 由（8)式中，機械系統共振角頻率仏及機械系統品質因 子^可分別表示為： (12) qm = 1 (13) 〇 其中，/μ為機械系統共振頻率。由（9)式中，聲學系統 共振角頻率％及聲學系統品質因子仏因此可分別表示為： ^=2^1maCab (14) Qa=-^~ ^ΑΒωΑ (15) 其中，Λ為聲學系統共振頻率。 方程式Δ〇ί)可化簡表示為： 而在（11)式中，特徵 A(s)= S4+a3 \+a2 S 2+at S +1 = 0 <y0 ω0 ω0 ω0 (16) 藉由比對（11)式及（16)式，初始共振角頻率及各代 號ai、a2、a3可分別表示為： 11 200932020 ω0-^ωΑωΜ- ^--ωΑ^α \Ja (17) 1 yfa QMyfa Qa (18) • a2 = —+ or + —-— + — a QmQa a (19) ο 1 4cc a% = 广 + QAyfa Qm (20) 其中，頻率比（frequency ratio) a 、質量比（mass ratio) p 可分別表示為： α = ^Μ=ίκ. /a (21) 〇 ρ = -^->0 Μμ (22) - 其中，聲學質量乂可表示成： - MA = P〇If πα2νρ (23) 若考慮無阻尼的情況下，此時機械系統品質因子Qu及 聲學系統品質因子a趨近於無線大， 因此特徵方程式△(〇又 12 200932020 可表示成： (24) Δ⑻=以-(1 + «2+水+1 其中，正規化頻率（Normalized Frequency)rM表示成： 根據(24)式來畫圖’就可以畫出耦合共振系統根軌跡 圖’如第四圖所示’其水平軸與垂直軸分別為正規化頻率 與質量比。如第四圖所示’藉由正規化頻率〜及質量比p 的關係，可得到相關的頻率比or曲線，但需要注意的是， 圖中質量比小於〇的部分實際上不可能存在，這純粹只是 數學表示方式，無法被應用在實際的設計上。透過第四圖 Q 耦合共振系統根軌跡圖，並考量本發明係針對聲學系統做 設計，因此機械系統的共振頻率/W不會改變，即是固定值， 而且聲學系統的共振頻率人必須為小於機械系統的共振頻 . 率 /w。 - 第五圖係本發明產生揚聲器共振式音箱參數之系統示 意圖。在藉由一輸入裝置2定義低頻延伸頻率fl、質量比p及 出音孔的半徑如’龙配合一固定裝置3固定機械系統的共振 頻率4及機械系統質量乂下，使本發明之產生揚聲器共振 式音箱參數之系統4取得頻率比α、導音管長度心及腔體容 13 200932020 tin ί ί ί4! " ^ ^ …H 質量裝置42、-導音管長度裝置 體容積# — 4、—聲學系統共振頻率裝置45及-腔 中減正規化頻”置41係在接收輸入裝置2 =頻延伸頻率Λ及固定襄置3中已固定不變的機 =統，、振頻率即可得到初始正規化頻率r】。在此 而要注思的是’初始正規化頻率裝置41係使用(25)式，使 ❹Mas (9) where AG is acoustic quality, acoustic resistance, acoustic compliance, % is the acoustic system resonance angular frequency, and 仏 is the acoustic system quality factor. The overall impedance 第三 of the third graph can be expressed as follows: ❹ ΖΓ =: ZW + —: Μ ΥΑ △ (5) (10) where '△(·?) is the characteristic equation of the system, which can be expressed as : △W: X—“- — "t" 1 || 11 - -j- 一·_ ωΜ Qm (〇m A〇}a2 Qa ωΑ + MaC^s2 01) 200932020 By (8), mechanical The system resonance angular frequency 仏 and the mechanical system quality factor ^ can be expressed as: (12) qm = 1 (13) 〇 where /μ is the mechanical system resonance frequency. From (9), the acoustic system resonance angular frequency % and The acoustic system quality factor 仏 can therefore be expressed as: ^=2^1maCab (14) Qa=-^~ ^ΑΒωΑ (15) where Λ is the acoustic system resonance frequency. Equation Δ〇ί) can be reduced to: In the formula (11), the characteristic A(s)=S4+a3\+a2 S 2+at S +1 = 0 <y0 ω0 ω0 ω0 (16) by comparing the equations (11) and (16), The initial resonance angular frequency and the codes ai, a2, and a3 can be expressed as: 11 200932020 ω0-^ωΑωΜ- ^--ωΑ^α \Ja (17) 1 yfa QMyfa Qa (18) • a2 = —+ or + — -— + — a QmQa a (19) ο 1 4cc a% = wide + QAyfa Qm (20) where the frequency ratio a and the mass ratio p can be expressed as: α = ^Μ=ίκ. /a (21) 〇ρ = -^ ->0 Μμ (22) - where the acoustic mass 乂 can be expressed as: - MA = P〇If πα2νρ (23) If no damping is considered, then the mechanical system quality factor Qu and the acoustic system quality factor a tend to It is close to wireless, so the characteristic equation △(〇又12 200932020 can be expressed as: (24) Δ(8)=with -(1 + «2+水+1 where the normalized frequency rM is expressed as: according to (24 ) to draw a picture 'you can draw the root trajectory of the coupled resonance system' as shown in the fourth figure, 'the horizontal axis and the vertical axis are the normalized frequency and mass ratio respectively. As shown in the fourth figure, 'by normalizing the frequency ~ and the relationship between mass ratio p, can get the relevant frequency ratio or curve, but it should be noted that the part of the figure whose mass ratio is less than 〇 is virtually impossible to exist. This is purely mathematical representation and cannot be applied in practice. Designed. Through the fourth figure Q coupled resonance system root trajectory diagram, and considering that the invention is designed for the acoustic system, so the mechanical system resonance frequency / W does not change, that is, a fixed value, and the acoustic system resonance frequency must be less than The resonance frequency of the mechanical system. Rate / w. - Figure 5 is a system diagram of the present invention for producing speaker resonance speaker parameters. The speaker of the present invention is made by an input device 2 defining a low frequency extension frequency fl, a mass ratio p, and a radius of the sound hole such as a resonance frequency 4 of the mechanical system fixed by the fixed device 3 and a mechanical system quality. The system 4 of the resonant speaker parameters obtains the frequency ratio α, the length of the sound tube and the cavity volume 13 200932020 tin ί ί 4! " ^ ^ ...H mass device 42, the length of the guide tube body volume # 4 - Acoustic system resonance frequency device 45 and - cavity reduction normalization frequency" 41 is fixed in the receiving input device 2 = frequency extension frequency Λ and fixed device 3, the vibration frequency can be obtained The initial normalization frequency r]. It is to be noted here that the 'initial normalization frequency device 41 uses the (25) formula to make ❹
初始正規化頻率，由於低頻延伸頻率/及機械系統的 共振頻率/"均為已知，故而可得初始正規化頻率q。聲學 質量裝置42係在接收輸人裝置2中定義的聲學“及固定 裝？ 3中已固疋不變的機械系統質量^，即可得到一聲學 質聲學質量％係使用（22)式並作數學運算，即是藉 由質量比Ρ及機械系統質量蚴的乘積得到聲學質量沁。而 導音管長度裝置43係接收聲學質量裝置42產生的聲學質量 <及輸入裝置2中疋義的出音孔的半徑〜，即可得到導音 管長度‘。在此需要注意的是，導音管長度裝置43係使用 (23)式’在空氣密度ρ。及圓周率冗為常數時，冑由已知的 聲學質量<及出音孔的半徑〜得到導音管長度‘。頻率比 裝置44係接收初始正規化頻率裝置41產生的初始正規化頻 率r丨及質量比ρ，以得到頻率比α。頻率比裝置料係使用第 四圖耦合共振系統根軌跡圖，由已知的質量比ρ及正規化 頻率Γι查找頻率比《的曲線。聲學系統共振頻率裝置45係接 收固疋裝置3中已固疋不變的機械系統的共振頻率人及頻 200932020 率置44產生的頻率比“，以得到一聲學系統共振頻率Λ 系統的共振頻率/並作數聲用(21)式，由已知的機械 ，料以魏學運算，即是機械系統的共振頻 率/w除以頻率比得到聲學系統共振頻率力。腔體 =首先係接收聲學“共振頻率裝置45產生的聲學純 Ο ❹ 體學順性Cab，再藉由聲學順性〜得到腔 系體谷積裝置46係使用（12)式，由已知的聲學 用⑴&it聲學質量仏得到聲學順性CAB ’之後，使 :’在工㈣度凡及聲速4常數時，由已知 性CAB得到腔體容積G。 早予興 由導if =生揚聲器共振式音箱參數之系統4在經 生頻ill J產生導音管長度‘、頻率比裝置44產 腔體容積裝置46產生腔體容積^後，可藉由 體?=裝f，讓使用者取得導音管長度“、頻率比《及腔 今積L等揚聲器共振式音箱參數。此 =箱中，更包括-聲學電阻裝置= 》在二乳密度叫及動態黏滯係數//為常數時，由 ^知的導音管長度‘及出音孔半“，配合^ 率ω，可以得到聲學電阻、 阻 示頻率響應圖做進-步分析。 '电阻RabpT以繪 職是’本發明確能藉上述所揭露之技術，提供 ，而的S式音箱特徵方程式與實際設計目標 腔音孔半捏大小、導音管的長度尺寸與 積而月匕簡便且快速地設計出可供各式揚聲器载入 15 200932020 的共振式音箱。同時，由揚聲器發出的低頻聲音，也能微 妙而準確地延伸至設計目標所預期的頻率區間，而使得各 式揚聲器所發出之低頻聲音訊息得到強化。 故而本發明實現了一種揚聲器共振式音箱，迥然不同 於習知者的設計，堪能提高整體之使用價值，又其申請前 未見於刊物或公開使用，誠已符合發明專利之要件，爰依 法提出發明專利申請。 惟，上述所揭露之圖式、說明，僅為本發明之實施例 而已，凡精于此項技藝者當可依據上述之說明作其他種種 之改良，而這些改變仍屬於本發明之發明精神及以下所界 定之專利範圍中。The initial normalization frequency, since the low frequency extension frequency/and the mechanical system resonance frequency/" are known, the initial normalized frequency q is obtained. The acoustic quality device 42 is configured to receive the acoustic mechanical quality defined in the input device 2 and the mechanical system quality that has been fixed in the fixed device 3, thereby obtaining an acoustic quality and acoustic mass% using the equation (22). The mathematical operation, that is, the acoustic quality 沁 is obtained by the product of the mass ratio Ρ and the mechanical system mass 沁. The damper length device 43 receives the acoustic quality produced by the acoustic mass device 42 < and the ambiguous output in the input device 2 The radius of the sound hole is ~, and the length of the sound tube can be obtained. It should be noted that the length of the sound tube length 43 is (23) where the air density ρ and the tempo are constant, The known acoustic quality <and the radius of the sound hole~the length of the sound tube is obtained. The frequency ratio device 44 receives the initial normalized frequency r丨 and the mass ratio ρ generated by the initial normalized frequency device 41 to obtain the frequency ratio α. The frequency ratio device system uses the fourth figure to couple the resonance system root locus map, and the known frequency ratio ρ and the normalized frequency Γι find the frequency ratio. The acoustic system resonance frequency device 45 receives the solid-state device 3 solid疋 constant mechanical system resonance frequency human and frequency 200932020 rate set 44 to generate a frequency ratio "to obtain an acoustic system resonance frequency Λ system resonance frequency / and digital sound (21) type, by known machinery The material is calculated by the Wei learning operation, that is, the resonance frequency/w of the mechanical system is divided by the frequency ratio to obtain the resonance frequency of the acoustic system. The cavity = firstly receives the acoustically pure ❹ ❹ 顺 C 产生 产生 产生 generated by the acoustic resonance device 45, and then obtains the cavity system by using the acoustic compliant ~ 46 system using the formula (12), known from Acoustic use (1) &it acoustic mass 仏 to obtain acoustically compliant CAB ', so that: 'When working (four) degrees and sound speed 4 constant, the cavity volume G is obtained by the known CAB. Early prediction by if = raw speaker resonance The system 4 of the speaker parameters can generate the guide tube length by the frequency generator ill J, and the frequency ratio of the device 44 is generated by the device 44, and the volume can be obtained by the body? The length of the sound tube, the frequency ratio, and the speaker resonance speaker parameters such as the cavity. This = box, including - acoustic resistance device = "when the density of the two milk and the dynamic viscosity coefficient / / is a constant, the length of the sound tube and the sound hole half", with the ^ rate ω, Acoustic resistance and resistance frequency response diagram can be obtained for further step analysis. 'Resistance RabpT is painted by the present invention. The invention can be provided by the above-mentioned disclosed technology, and the S-type speaker characteristic equation and the actual design target cavity sound. The half pinch size, the length and size of the sound tube, and the simple and quick design of the resonant speaker for various speakers to load 15 200932020. At the same time, the low frequency sound emitted by the speaker can also be subtle and accurate. The ground extends to the frequency range expected by the design target, so that the low-frequency sound information emitted by various speakers is strengthened. Therefore, the present invention realizes a speaker resonance type speaker, which is different from the design of the conventional person, and can improve the overall use. The value, which was not found in the publication or public use before the application, has met the requirements of the invention patent, and filed an invention patent application according to law. However, the above-mentioned disclosure The description is only for the embodiments of the present invention, and those skilled in the art can make various other modifications according to the above description, and these changes are still within the scope of the invention and the patent scope defined below.
16 200932020 【圖式簡單說明】 0)、圖式說明： 第圖係為揚聲器共振式音箱的結構示意圖，· 第二圖係為轉化第一圖的電路示意圖； 第二圖係為第二圖化簡之機械系統等效電路； 第四圖係為耗合共振系統根軌跡圖；以及 一第五圖係為本發明產生揚聲器共振式音箱參數冬系統 示意圖。 (2)、主要部分之代表符號： 1 揚聲器共振式音箱 10 外殼 Ο 11 12 13 14 2 4 41 42 43 44 45 腔體 揚聲器孔 出音孔 導音管 輸入裝置 固定裝置 產生揚聲器共振式音箱參數之系統 初始正規化頻率裳置 聲學質量裝置 導音管長度裝置 頻率比裝置 聲學系統共振頻率裝置 17 200932020 46 47 腔體容積裝置 聲學電阻裝置16 200932020 [Simple description of the diagram] 0), Schematic description: The figure is a schematic diagram of the structure of the speaker resonance type speaker, · The second picture is the circuit diagram for converting the first picture; The second picture is the second picture The mechanical circuit equivalent circuit of the simplified system; the fourth figure is the root trajectory diagram of the consumable resonance system; and the fifth figure is the schematic diagram of the winter system for generating the speaker resonance type speaker of the invention. (2), the main part of the representative symbol: 1 speaker resonance speaker 10 housing Ο 11 12 13 14 2 4 41 42 43 44 45 cavity speaker hole sound hole sound tube input device fixture to produce speaker resonance speaker parameters System initial normalization frequency skirting acoustic mass device sound tube length device frequency ratio device acoustic system resonance frequency device 17 200932020 46 47 cavity volume device acoustic resistance device