200924380 九、發明說明： 【發明所屬之技術領域】 本發明係提供一種音量調整裝置及其方法，特別是一 種將聲音信號區分為複數個波段，並對最大音量值超出門 檻值的波段進行音量調整之裝置及方法。 【先前技術】 目前在多國會話、音樂歌曲或各種聲音檔中，若聲音 信號未加以處理便直接撥放，此聲音信號通常會產生破音 現象。亦即，在聲音信號中，音量值超出門檻值或預定範 圍的部分會出現不悅耳的聲音，非但聽起來刺耳不舒服， 更容易對耳朵造成傷害，以致影響人們的聽力。對此，如 何調整聲音信號之音量值，以解決破音問題並保護聽力， 已成為人們非常關心的課題。 請同時參閱第1A圖至第1C圖，第1A圖係為一聲音信 號之示意圖，第1B圖係為習知技藝中第一種音量調整方法 之示意圖，第1C圖係為習知技藝中第二種音量調整方法之 示意圖。如第1A圖所示，聲音信號1在信號點11至信號 點13之波段，其音量值已超出門檻值，故可利用第1B圖 或第1C圖所述之音量調整方法進行調整，使信號點11至 信號點13之波段的音量值等於或低於門檻值，或使信號點 12之音量值等於或低於門檻值。 如第1B圖所示之第一種音量調整方法，係調整信號點 11至信號點13之波段，將其音量值全部調降至門檻值。 此方法雖未改變等於或低於門檻值之波段，但卻使得高於 門檻值之波段嚴重變形，反而造成聲音信號1出現重大錯 誤，因此很少使用。另外，如第1C圖所示之第二種音量調 200924380 二Ϊ誠整個聲音信號1，使信號點12之音量值調 僧、2^。此方法雖將聲音信號1之音量值控制在門檻 α ^立旦部也使得音量值未超出門檻值之波段受到衰減， 拉啼了 Γ值較低的部分無法聽得清楚，或造成部分的聲音 ° 過微弱而難以辨識等問題。 置之知技藝之缺點，以滿足使用者對音量調整展 ’本發明人基於多年從事研究與諸多實務經驗， 設計與專題探討’於本發明提種音量調整 " 、方法’以作為前述期望之實現方式與依據。 【發明内容】 裝置於上述課題’本發明之目的係提供-種音量調整 段，並法，特別是一種將聲音信號區分為複數個波 置及方法敬大音量值超出門檻值的波段進行音量調整之裝 決習知技鈒以滿足使用者對音量調整裝置之需求，同時^ 亦妒料扣*之缺點，除使門檻值以内之波段維持不變外， 的變形。。出門檻值之波段進行衰減，也不會造成聲音信號 a 、 裝置，ί，為達上述之目的，本發明係提出一種音量調整 中，签2包含一聲音模組、一比較模組及一調整模組。其 個波係提供—聲音信號，且聲音信號區分為複數 聲立二Λ母一波段具有一最大音量值。而比較模組係連接 較二ΐ二敕严對每一波段之最大音量值與一門摄值相比 波段的係連接聲音模組及比較模組，當所比較之 波$， e量值高於門檻值時，調整模組衰減所比較之 〆又γ以使其最大音量值等於或低於門檻值。 卜本發明再提出一種音量調整方法，其包含下列 200924380 步驟： (a)提供一音量調整裝置，其包含一聲音模組、一比較 模組及一調整模組。 (b )以聲音模組提供一聲音信號，並將聲音信號區分為 複數個波段，每一波段具有一最大音量值。 (c) 以比較模組對每一波段之最大音量值與一門楹值 相比較。 (d) 當所比較之波段的最大音量值高於門檻值時，調整 模組衰減所比較之波段，以使其最大音量值等於或 低於門植值。 茲為使貴審查委員對本發明之技術特徵及所達成之 功效有更進一步之瞭解與認識，下文謹提供較佳之實施例 及相關圖式以為輔佐之用，並以詳細之說明文字配合說明 如後。 【實施方式】 為使本發明之上述目的、特徵和優點能更明顯易懂， 下文依本發明之音量調整裝置及其方法，特舉較佳實施 例，並配合所附相關圖式，作詳細說明如下，其中相同的 元件將以相同的元件符號加以說明。 請參閱第2圖，係顯示本發明之音量調整裝置之示意 圖。圖中，音量調整裝置2係包含一聲音模組21、一比較 模組22及一調整模組23。其中，聲音模組21係提供一聲 音信號211，且聲音信號211係根據一預設音量值（如零分 貝）區分為複數個波段212,每一波段212具有一最大音量 值213。此聲音模組21係包含一聲音檔、一聲音產生器、 200924380 一聲音接收器或一聲音播放器。而聲音信號211係包含一 脈衝碼調變（pulse Code Modulation，PCM)信號。再者， 比較模組22係連接聲音模組21，並對每一波段212之最 大音量值213與一門檻值221相比較。此比較模組22係包 含一比較器、一比較電路或一比較程式。另外，調整模組 23係連接聲音模組21及比較模組22,當所比較之波段212 的最大音量值213高於門檻值221時，調整模組23衰減所 比較之波段212，以使其最大音量值213等於或低於門γ 值22卜此調整模組23係'包含一調整器或一衰&器、。化 請參閱第3圖’係顯示本發明之音量調整方法之示意 圖。圖中’先提供一音量調整裝置，其包含一聲音權、二 比較模組及一調整模組（圖未示）。同時，對聲音檔進行撥 產生一聲音信號3，並以零分貝（〇 dB)為基準，將聲 鱿3區分為複數個波段，如波段31至波段33。此波 ^ 31為信號點34至信號點36之波段，波段32為信號點 至信號點37之波段，而波段33為信號點37至信號點 之^波丨又接者，由比較模組對波段31至波段3 3之最大 &直值與門檻值相比較。波段31之最大音量值為信號點 之音量值，並未超出門檻值，故調整模組不調整波段 。而波段32之最大音量值為零分貝（〇dB)，亦未超出門 =值，故調整模組也不調整波段32。但波段33之最大音 ί值為信號點38之音量值，已超出門檻值，故調整模組衰 伟=段33為波段33a’將信號點38調降至信號點38a，以 之最大音量值等於或低於門檻值。 請參閱第4圖，係顯示本發明之音量調整方法之流程 ▲。圖中，此方法係對應第2圖所示之音量調整裝置之示 思、圖，並包含下列步驟： 200924380 步驟S41 :提供一音量調整裝置2，其包含一聲音模組21、 一比較模組22及一調整模組23。此聲音模組21 係包含一聲音檔、一聲音產生器、一聲音接收器 及一聲音播放器其中一者。而比較模組22係包 含一比較器、一比較電路及一比較程式其中一 者。另調整模組23係包含一調整器及一衰減器 其中一者。 步驟S42 :以聲音模組21提供一聲音信號211，並將聲音 信號211根據一預設音量值（如零分貝）區分為 複數個波段212,每一波段212具有一最大音量 值213。此聲音信號211係包含一脈衝碼調變信 號。 步驟S43:以比較模組22對每一波段212之最大音量值213 與一門檻值221相比較。 步驟S44 :判斷所比較之波段212的最大音量值213是否 高於門檻值221 ?若是，則進行步驟S45。若否， 則進行步驟S46。 步驟S45 :由調整模組23衰減所比較之波段212，以使其 最大音量值213等於或低於門檻值221。接著， 進行步驟S47。 步驟S46 :調整模組23不調整所比較之波段212。 步驟S47 :判斷此些波段212是否皆比較完成？若是，則 直接結束。若否，則重覆步驟S43。 200924380 以上所述僅為舉例性，而非為限制性者。任何未脫離 本發明之精神與範疇，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 【圖式簡單說明】 第1A圖係為一聲音信號之示意圖； 第1B圖係為習知技藝中第一種音量調整方法之示意圖； 第1C圖係為習知技藝中第二種音量調整方法之示意圖； 第2圖係顯示本發明之音量調整裝置之示意圖； 第3圖係顯示本發明之音量調整方法之示意圖；以及 第4圖係顯示本發明之音量調整方法之流程圖。 【主要元件符號說明】 221 :門檻值； 23 :調整模組； 3:聲音信號； 31 〜33、33a :波段； 34〜39、38a :信號點； 以及 S41〜S47 :流程步驟。 1 :聲音信號； 11〜13 :信號點； 2 :音量調整裝置； 21 :聲音模組； 211 :聲音信號； 212 :波段； 213 :最大音量值； 22 :比較模組；200924380 IX. Description of the Invention: [Technical Field] The present invention provides a volume adjusting device and a method thereof, and more particularly, a sound signal is divided into a plurality of bands, and a volume is adjusted for a band whose maximum volume value exceeds a threshold value. Apparatus and method. [Prior Art] Currently, in a multinational conversation, music song or various sound files, if the sound signal is not processed, it is directly played and released, and the sound signal usually produces a broken sound. That is, in the sound signal, the portion where the volume value exceeds the threshold value or the predetermined range may have an unpleasant sound, which is not only uncomfortable to hear, but also more likely to cause damage to the ear, thereby affecting people's hearing. In this regard, how to adjust the volume value of the sound signal to solve the problem of breaking the sound and protect the hearing has become a subject of great concern. Please refer to FIG. 1A to FIG. 1C at the same time. FIG. 1A is a schematic diagram of a sound signal, and FIG. 1B is a schematic diagram of a first volume adjustment method in the prior art, and FIG. 1C is a conventional technique. A schematic diagram of two methods of volume adjustment. As shown in FIG. 1A, the sound signal 1 in the band of the signal point 11 to the signal point 13 has exceeded the threshold value, so the volume adjustment method described in FIG. 1B or FIG. 1C can be used to adjust the signal. The volume value of the band from point 11 to signal point 13 is equal to or lower than the threshold value, or the volume value of signal point 12 is equal to or lower than the threshold value. As shown in Fig. 1B, the first volume adjustment method adjusts the band of signal point 11 to signal point 13 and reduces the volume value to the threshold value. Although this method does not change the band equal to or lower than the threshold value, it causes a severe distortion of the band above the threshold value, which in turn causes a significant error in the acoustic signal 1, and is therefore rarely used. In addition, as shown in Fig. 1C, the second volume adjustment 200924380 2 Ϊ 整个 whole voice signal 1, the signal value of the signal point 12 is adjusted, 2^. Although the method controls the volume value of the sound signal 1 at the threshold ^α·立旦部, the band whose value does not exceed the threshold value is attenuated, and the portion with a lower Γ value cannot be heard clearly, or a part of the sound is caused. ° Weak and difficult to identify and other issues. The shortcomings of knowing the skills to meet the user's volume adjustment exhibition 'The inventor based on years of research and many practical experience, design and topical discussion 'in this invention to develop volume adjustments, 'methods' as the aforementioned expectations Implementation and basis. SUMMARY OF THE INVENTION The present invention is directed to the present invention. The object of the present invention is to provide a volume adjustment section, and a method, in particular, to divide a sound signal into a plurality of wave positions and a method for volume adjustment of a band whose volume value exceeds a threshold value. The device is equipped with a knowing skill to meet the user's demand for the volume adjustment device, and at the same time, the shortcomings of the button are not changed, except that the band within the threshold value remains unchanged. . The attenuation of the band of the threshold value does not cause the sound signal a, the device, ί, for the above purpose, the present invention provides a volume adjustment, the sign 2 includes a sound module, a comparison module and an adjustment Module. The other wave systems provide a sound signal, and the sound signal is divided into a plurality of sounds. The first band of the sound has a maximum volume value. The comparison module is connected to the sound module and the comparison module in which the maximum volume value of each band is compared with the value of one shot, and the value of the wave $, e is higher than the comparison module. When the threshold is thresholded, the adjustment module attenuates the compared γ and γ so that its maximum volume value is equal to or lower than the threshold value. The present invention further provides a volume adjustment method comprising the following steps of 200924380: (a) providing a volume adjustment device comprising a sound module, a comparison module and an adjustment module. (b) providing a sound signal by the sound module, and dividing the sound signal into a plurality of bands, each band having a maximum volume value. (c) Compare the maximum volume value of each band with a threshold value by the comparison module. (d) When the maximum volume value of the compared band is higher than the threshold value, the adjustment module attenuates the compared band so that its maximum volume value is equal to or lower than the threshold value. In order to provide a better understanding and understanding of the technical features and the efficacies of the present invention, the preferred embodiments and related drawings are provided for the purpose of assistance, and the detailed descriptions are followed by a description. . DETAILED DESCRIPTION OF THE INVENTION In order to make the above objects, features and advantages of the present invention more comprehensible, the following preferred embodiments of the present invention, and the accompanying drawings, The description is as follows, in which the same elements will be described with the same element symbols. Referring to Fig. 2, there is shown a schematic view of the volume adjusting device of the present invention. In the figure, the volume adjustment device 2 includes a sound module 21, a comparison module 22 and an adjustment module 23. The sound module 21 provides a sound signal 211, and the sound signal 211 is divided into a plurality of bands 212 according to a preset volume value (such as zero decibel), and each band 212 has a maximum volume value 213. The sound module 21 includes a sound file, a sound generator, a 200924380 sound receiver or a sound player. The sound signal 211 includes a pulse code modulation (PCM) signal. Furthermore, the comparison module 22 is connected to the sound module 21 and compares the maximum volume value 213 of each band 212 with a threshold value 221 . The comparison module 22 includes a comparator, a comparison circuit or a comparison program. In addition, the adjustment module 23 is connected to the sound module 21 and the comparison module 22. When the maximum volume value 213 of the compared band 212 is higher than the threshold 221, the adjustment module 23 attenuates the compared band 212 so that The maximum volume value 213 is equal to or lower than the gate γ value 22, and the adjustment module 23 includes 'a regulator or a fading & Referring to Fig. 3, there is shown a schematic diagram of a volume adjustment method of the present invention. In the figure, a volume adjustment device is provided, which includes a sound right, a second comparison module and an adjustment module (not shown). At the same time, the sound file is dialed to generate a sound signal 3, and the sound 鱿 3 is divided into a plurality of bands, such as the band 31 to the band 33, based on zero decibels (〇 dB). The wave ^ 31 is the band of the signal point 34 to the signal point 36, the band 32 is the band of the signal point to the signal point 37, and the band 33 is the wave point of the signal point 37 to the signal point, and is connected by the comparison module. The maximum & straight value of band 31 to band 3 3 is compared to the threshold value. The maximum volume value of the band 31 is the volume value of the signal point, and does not exceed the threshold value, so the adjustment module does not adjust the band. The maximum volume value of the band 32 is zero decibel (〇dB), and the gate value is not exceeded, so the adjustment module does not adjust the band 32. However, the maximum sound value of the band 33 is the volume value of the signal point 38, and the threshold value has been exceeded. Therefore, the adjustment module is fading = the segment 33 is the band 33a', and the signal point 38 is lowered to the signal point 38a, and the maximum volume value is obtained. Is equal to or lower than the threshold. Referring to Fig. 4, the flow of the volume adjustment method of the present invention is shown. In the figure, the method corresponds to the illustration and diagram of the volume adjustment device shown in FIG. 2, and includes the following steps: 200924380 Step S41: providing a volume adjustment device 2, comprising a sound module 21 and a comparison module 22 and an adjustment module 23. The sound module 21 includes one of a sound file, a sound generator, a sound receiver, and a sound player. The comparison module 22 includes one of a comparator, a comparison circuit, and a comparison program. The adjustment module 23 includes one of an adjuster and an attenuator. Step S42: The sound module 21 is provided with a sound signal 211, and the sound signal 211 is divided into a plurality of bands 212 according to a preset volume value (such as zero decibel), and each band 212 has a maximum volume value 213. This sound signal 211 contains a pulse code modulation signal. Step S43: The comparison module 22 compares the maximum volume value 213 of each band 212 with a threshold value 221 . Step S44: It is judged whether the maximum volume value 213 of the compared band 212 is higher than the threshold value 221. If yes, step S45 is performed. If not, proceed to step S46. Step S45: The compared band 212 is attenuated by the adjustment module 23 such that its maximum volume value 213 is equal to or lower than the threshold value 221. Next, step S47 is performed. Step S46: The adjustment module 23 does not adjust the compared band 212. Step S47: Determine whether the bands 212 are all completed. If yes, it ends directly. If not, step S43 is repeated. 200924380 The above description is for illustrative purposes only and is not a limitation. Any equivalent modifications or alterations to the spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a schematic diagram of a sound signal; FIG. 1B is a schematic diagram of a first volume adjustment method in the prior art; FIG. 1C is a second volume adjustment method in the prior art 2 is a schematic view showing a volume adjusting device of the present invention; FIG. 3 is a schematic view showing a volume adjusting method of the present invention; and FIG. 4 is a flow chart showing a volume adjusting method of the present invention. [Main component symbol description] 221: threshold value; 23: adjustment module; 3: sound signal; 31~33, 33a: band; 34~39, 38a: signal point; and S41~S47: process steps. 1 : sound signal; 11~13: signal point; 2: volume adjustment device; 21: sound module; 211: sound signal; 212: band; 213: maximum volume value; 22: comparison module;