201021527 i w^euer/\ 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種播放聲音調整方法，且特別是有 關於一種行動電話之播放聲音調整方法。 【先前技術】 於目前之行動電話中，當使用者在使用行動電話來進’， 行通話或聽音樂時，係以行動電話上的音量調整按鍵來調 整播放聲音之音量為合適之音量。然而，在使用行動電話 © 時，行動電話所在位置的環境聲音之音量常會影響使用者 的聽力，亦即影響使用者可聆聽之行動電話所播放聲音之 音量。因此，在不同環境下，使用者有時會覺得播放聲音 之音量過大而感覺不適，有時又會覺得播放聲音之音量太 小而聽不清楚。 【發明内容】 本發明係有關於一種行動電話之播放聲音調整方 ⑬ 法，藉由行動電話感測其環境聲音之音量，以使行動電話 可依據環境聲音之音量，對應地調整行動電話之播放聲音 之音量。如此，在環境聲音之音量較大的場所下，行動電 話可自動地提高播放聲音之音量，以避免播放聲音之音量 太小造成使用者聽不清楚，而於在環境聲音之音量較小的 場所下，行動電話則可自動地降低播放聲音之音量，以避 免播放聲音之音量太大而造成使用者的不適。 4 201021527 根據本發明之第一方面，提出一種行動電話之播放聲 音調整方法。此方法包括下列步驟。由一行動電話感測其 所在位置之一環境聲音之音量。由行動電話依據環境聲音 之音量，對應地調整行動電話之一播放聲音之音量。 根據本發明之第二方面，提出一種行動電話，包括一 播放單元、一環境聲音感測單元、及一控制單元。播放單 元用以播放一播放聲音。環境聲音感測單元用以感測一環 境聲音之音量。控制單元係依據環境聲音之音量，對應地 # 調整播放單元之播放聲音之音量。 為讓本發明之上述内容能更明顯易懂，下文特舉較佳 實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 請參照第1圖，其繪示依照本發明之一實施例之行動 電話之播放聲音調整方法之流程圖。本方法包括以下之步 驟。於步驟S120中，由行動裝置感測其所在位置之一環 ® 境聲音之音量。於步驟S140中，由行動裝置依據環境聲 音之音量，對應地調整行動裝置所播放之一播放聲音之音 量。茲以一行動電話為例，將行動電話係如何執行本發明 實施例之播放聲音調整方法詳細說明如下。 請同時參照第2及3圖。第2圖繪示依照本發明之一 實施例之行動電話200之方塊圖。第3圖繪示為第2圖之 行動電話200所執行之播放聲音調整方法之一例之流程 圖。行動電話200包括一播放單元210、一環境聲音感測 201021527201021527 i w^euer/\ IX. Description of the Invention: [Technical Field] The present invention relates to a method for adjusting a playback sound, and more particularly to a method for adjusting a playback sound of a mobile phone. [Prior Art] In the current mobile phone, when the user is using a mobile phone to make a call, or to listen to music, the volume adjustment button on the mobile phone is used to adjust the volume of the playback sound to a suitable volume. However, when using the mobile phone ©, the volume of the ambient sound at the location of the mobile phone often affects the user's hearing, that is, the volume of the sound played by the mobile phone that the user can listen to. Therefore, in different environments, the user sometimes feels that the volume of the played sound is too large and feels uncomfortable, and sometimes the volume of the played sound is too small to be heard. SUMMARY OF THE INVENTION The present invention relates to a method for playing a sound adjustment of a mobile phone, which senses the volume of the ambient sound by the mobile phone, so that the mobile phone can adjust the play of the mobile phone according to the volume of the ambient sound. The volume of the sound. In this way, in a place where the volume of the ambient sound is large, the mobile phone can automatically increase the volume of the played sound, so that the volume of the played sound is too small to cause the user to hear clearly, and in a place where the volume of the ambient sound is small. Next, the mobile phone can automatically reduce the volume of the playing sound to avoid the volume of the playing sound being too large and causing user discomfort. 4 201021527 According to a first aspect of the present invention, a method for adjusting a sound of a mobile phone is proposed. This method includes the following steps. The volume of the ambient sound at one of its locations is sensed by a mobile phone. The volume of the sound played by one of the mobile phones is adjusted correspondingly by the mobile phone according to the volume of the ambient sound. According to a second aspect of the present invention, a mobile phone is provided comprising a playback unit, an ambient sound sensing unit, and a control unit. The playback unit is used to play a playback sound. The ambient sound sensing unit is configured to sense the volume of an ambient sound. The control unit adjusts the volume of the playback sound of the playback unit according to the volume of the ambient sound. In order to make the above description of the present invention more comprehensible, the preferred embodiments are described below, and are described in detail below with reference to the accompanying drawings. [Embodiment] Please refer to Fig. 1, which is a flow chart showing a method for adjusting the playing sound of a mobile phone according to an embodiment of the present invention. The method includes the following steps. In step S120, the mobile device senses the volume of the sound of the environment in one of its locations. In step S140, the mobile device adjusts the volume of the played sound of the mobile device in accordance with the volume of the ambient sound. Taking a mobile phone as an example, how to perform the method of adjusting the playing sound of the mobile phone system in the embodiment of the present invention will be described in detail below. Please also refer to Figures 2 and 3. 2 is a block diagram of a mobile phone 200 in accordance with an embodiment of the present invention. Fig. 3 is a flow chart showing an example of a method of adjusting the playing sound performed by the mobile phone 200 of Fig. 2. The mobile phone 200 includes a playing unit 210 and an ambient sound sensing 201021527
1 W4»U5PA 單元220、及一控制單元230、一判斷單元240、一音量調 整按鍵（未繪示於第2圖中）、一設定介面260、一計時單 元270、及一儲存單元280。播放單元210用以播放一播 放聲音Vo，此播放聲音Vo具有一音量。環境聲音感測單 元220用以感測環境聲音Vi之音量。控制單元230係依 據環境聲音Vi之音量，對應地調整播放單元210之播放 聲音Vo之音量。 茲將行動電話200所執行播放聲音調整方法說明如 下。於步驟S310中，判斷單元240判斷設定介面260之 ® 一自動選項是否被啟動。若自動選項未被啟動，則可能表 示為手動選項被啟動，故行動裝置200會致能音量調整按 鍵，而行動電話200可依據聲音調整按鍵之觸動情況，來 調整播放音量聲音Vo之音量，如步驟S320所示。若自動 選項被啟動，則行動裝置200會致能環境聲音感測單元220 及控制單元230，並執行步驟S330。 於步驟S330中，判斷單元240判斷播放單元210是 否正在進行播放。若判斷單元240判斷播放單元210為正 ® 在播放，則行動電話200將會執行感測環境聲音Vi之音 量及調整播放聲音Vo之音量之兩步驟S340及S350。 於步驟S340中，環境聲音感測單元220感測環境聲 音Vi之音量。接著，控制單元230係依據環境聲音Vi音 量，對應地調整播放單元210之播放聲音Vo之音量，如 步驟S350所示。 進一步地，步驟S350可更包括以下之步驟。於步驟 6 201021527 S352中，判斷單元240判斷環境聲音Vi之音量是否超出 一預定範圍。若環境聲音Vi之音量大於此預定範圍之最 大值，則執行步驟S354 ’控制單元230提高播放單元210 之播放聲音Vo之音量。若環境聲音Vi之音量小於此預定 範圍之最小值，則執行步驟S356,控制單元230降低播放 單元210之播放聲音Vo之音量。若判斷單元240判斷環 境聲音Vi之音量並未超出預定範圍，則回到步驟S330。 由於上述之行動電話200係可在播放單元21〇正在播 ❿放時，執行感測環境聲音Vi之音量及調整播放聲音Vo之 音量之兩步驟S340及S350。如此’行動電話2〇〇將能於 提供播放聲音時，例如於通話或播放音樂時，調整播 放聲音Vo之音量為合適之音量。再者，行動電話200還 能於停止播放後，結束此方法及各單元之動作，並於下一 次進行播放時，再次執行本聲音調整方法，如此，將可達 到省電的功效。 再者，上述之判斷單元240在判斷播放單元210為正 ❹在播放時’還用以致能計時單元270。受致能之計時單元 250將會每隔一預定時間傳遞一致能訊號s至環境聲音感 測單元220及控制單元230，來使環境聲音感測單元220 週期性地取得環境聲音Vi之音量。如此，每隔此預定時 間，行動電話200將可重覆執行感測環境聲音vi之音量 及調整播放聲音Vo之音量之兩個步驟S340及S350，以 即時調整行動電話200之播放聲音Vo之音量為合適之音 2010215271 W4»U5PA unit 220, and a control unit 230, a determining unit 240, a volume adjustment button (not shown in FIG. 2), a setting interface 260, a timing unit 270, and a storage unit 280. The playing unit 210 is configured to play a play sound Vo, and the play sound Vo has a volume. The ambient sound sensing unit 220 is configured to sense the volume of the ambient sound Vi. The control unit 230 adjusts the volume of the playback sound Vo of the playback unit 210 correspondingly according to the volume of the ambient sound Vi. The following describes the method of adjusting the playing sound performed by the mobile phone 200. In step S310, the determining unit 240 determines whether the automatic option of the setting interface 260 is activated. If the automatic option is not activated, it may be indicated that the manual option is activated, so the mobile device 200 enables the volume adjustment button, and the mobile phone 200 can adjust the volume of the playback volume sound Vo according to the touch of the sound adjustment button, such as Step S320 is shown. If the automatic option is activated, the mobile device 200 enables the ambient sound sensing unit 220 and the control unit 230, and performs step S330. In step S330, the determination unit 240 determines whether the playback unit 210 is playing. If the judging unit 240 judges that the playing unit 210 is playing, the mobile phone 200 performs two steps S340 and S350 of sensing the volume of the ambient sound Vi and adjusting the volume of the playing sound Vo. In step S340, the ambient sound sensing unit 220 senses the volume of the ambient sound Vi. Next, the control unit 230 adjusts the volume of the playing sound Vo of the playing unit 210 correspondingly according to the ambient sound Vi volume, as shown in step S350. Further, step S350 may further include the following steps. In step 6 201021527 S352, the determination unit 240 determines whether the volume of the ambient sound Vi exceeds a predetermined range. If the volume of the ambient sound Vi is greater than the maximum value of the predetermined range, the step S354' is executed to control the volume of the playback sound Vo of the playback unit 210. If the volume of the ambient sound Vi is less than the minimum value of the predetermined range, then step S356 is performed, and the control unit 230 lowers the volume of the playback sound Vo of the playback unit 210. If the judging unit 240 judges that the volume of the ambient sound Vi does not exceed the predetermined range, it returns to step S330. Since the above-described mobile phone 200 can perform the playback of the playback unit 21 while the playback unit 21 is currently playing, two steps S340 and S350 of sensing the volume of the ambient sound Vi and adjusting the volume of the playback sound Vo are performed. Thus, the mobile phone 2 will be able to adjust the volume of the playback sound Vo to a suitable volume when providing a sound, such as during a call or playing music. Furthermore, the mobile phone 200 can also end the operation of the method and each unit after the playback is stopped, and execute the sound adjustment method again when the next playback is performed, so that the power saving effect can be achieved. Moreover, the determining unit 240 is further configured to enable the timing unit 270 when determining that the playing unit 210 is playing. The enabled timing unit 250 will transmit the coincidence signal s to the ambient sound sensing unit 220 and the control unit 230 every predetermined time period to cause the ambient sound sensing unit 220 to periodically obtain the volume of the ambient sound Vi. Thus, at this predetermined time, the mobile phone 200 can repeatedly perform the two steps S340 and S350 of sensing the volume of the ambient sound vi and adjusting the volume of the playback sound Vo to instantly adjust the volume of the playback sound Vo of the mobile phone 200. For the right sound 201021527
1 W48U»PA 茲以一例將控制單元230係如何依據環境聲音Vi之 音量，來對應地調整播放單元210之播放聲音Vo之音量 說明如下。請參照第4圖，其繪示依照本發明一實施例之 行動電話200之儲存單元280所儲存之對照表LUT之一例 之示意圖。儲存單元280用以儲存第4圖之對照表LUT 之内容。此對照表LUT具有環境聲音Vi之音量與播放聲 音Vo之音量之對應關係，亦即環境聲音Vi之音量的多種 預定範圍與播放聲音Vo之多級音量之對應關係，如預定 範圍d2〜d3分貝（dB)與第三級音量“Level 3”之對應關係。® 如此，當控制單元230在調整播放聲音Vo之音量時，控 制單元230可查詢對照表LUT中之環境聲音Vi與播放聲 音Vo之音量的對應關係，以依據對照表LUT及環境聲音 Vi之音量，來對應地調整播放單元210之播放聲音Vo之 音量。 舉例來說，若環境聲音感測單元220所感測之環境聲 音Vi之音量為dx分貝（dB)，而控制單元230依據對照表 LUT得知此時之環境聲音Vi之音量係介於d2〜d3分貝之❹ 預定範圍之間時，即d2<dx<d3，此時，控制單元230將 會對應地調整播放聲音Vo之音量為行動電話200可輸出 之第三級音量“Level 3”，如第4圖所所示。 再者，假設環境聲音感測單元220所感測之環境聲音 Vi之音量由dx分貝增加至dy分貝。此時，若判斷單元 240判斷出此時之環境聲音Vi之音量已超出d2〜d3分貝 之預定範圍，且此時之環境聲音Vi(dy分貝）之音量係大於 201021527 此預定範圍之最大值（d3分貝），即d3 < dy，則控制單 230將會提高播放單元210之播放聲音v〇之音晉y元 曰罝，例如從 提高至行動電話200可輪出之第四級音量“Level 4,，，饰 4圖所示。相仿地，若判斷單元24〇判斷出此時之環产第 音Vi之音量已超出d2分貝〜d3分貝之預定範圍，聲 之環境聲音Vi(dy分貝）之音量係小於此預定範圍之最】時 (d2分貝）’即dy<d2 ’則控制單元230會對應地降低=值 單元210之播放聲音Vo之音量，例如係降低至行動效 200可輸出之第二級音量“Level 2”，如第4圖所示。話 請參照第5圖，其繪示依照本發明一實施例之〜 ❹ 話200及其音量調整按鍵250及設定介面260之—彳 電 意圖。於此例中’設定介面260包括一螢幕261與〜β示 鍵262。設定介面260具有一自動選項260a及一手操作 260b，例如係顯示於螢幕261上。此自動選項26如選項 被行動電話200判斷是否為啟動，如第3圖之步驟&將會 所示。若自動選項260a被啟動，例如係由使用者S3l〇 作鍵262來啟動，則表示行動電話2〇〇將可執，使用操 測環境聲音Vi之音量及調整播放聲音v〇之立^上迷之感 S340及S350。若手動選項260b被啟動，則二八=兩步騍 2〇〇可依據聲音調整按鍵250之觸動情沉，來不行動電話 音Vo之音量，如第3圖之步驟S32〇所示。調整播玫聲 於上述之例中，設定介面260係以螢幕 介面，並由操作鍵262來對行動電話2〇〇進行軟動 然亦不限於此’上述之設定介面260亦可利用其它方式實 9 2010215271 W48U»PA The following is an example of how the control unit 230 adjusts the volume of the playback sound Vo of the playback unit 210 according to the volume of the ambient sound Vi. Referring to FIG. 4, a schematic diagram of an example of a lookup table LUT stored in the storage unit 280 of the mobile phone 200 according to an embodiment of the present invention is shown. The storage unit 280 is configured to store the content of the lookup table LUT of FIG. The comparison table LUT has a correspondence relationship between the volume of the ambient sound Vi and the volume of the playback sound Vo, that is, the correspondence between the plurality of predetermined ranges of the volume of the ambient sound Vi and the multi-level volume of the playback sound Vo, such as a predetermined range d2 to d3 decibels. (dB) Corresponds to the third level volume "Level 3". In this way, when the control unit 230 adjusts the volume of the playback sound Vo, the control unit 230 can query the correspondence between the ambient sound Vi in the comparison table LUT and the volume of the playback sound Vo, according to the volume of the comparison table LUT and the ambient sound Vi. To adjust the volume of the playback sound Vo of the playback unit 210 correspondingly. For example, if the volume of the ambient sound Vi sensed by the ambient sound sensing unit 220 is dx decibels (dB), the control unit 230 knows that the volume of the ambient sound Vi at this time is between d2 and d3 according to the comparison table LUT. When the decibel is between the predetermined ranges, that is, d2 < dx < d3, at this time, the control unit 230 will correspondingly adjust the volume of the playing sound Vo to the third level volume "Level 3" that the mobile phone 200 can output, such as Figure 4 shows. Furthermore, it is assumed that the volume of the ambient sound Vi sensed by the ambient sound sensing unit 220 is increased from dx decibels to dy decibels. At this time, if the determining unit 240 determines that the volume of the ambient sound Vi has exceeded the predetermined range of d2 to d3 decibels, and the volume of the ambient sound Vi (dy decibel) is greater than the maximum value of the predetermined range of 201021527 ( D3 decibel), that is, d3 < dy, the control unit 230 will increase the playing sound of the playing unit 210, and the fourth level of the volume can be rotated from the boost to the mobile phone 200. 4,,, as shown in Fig. 4. Similarly, if the judging unit 24 determines that the volume of the first vibrating vi of the loop has exceeded the predetermined range of d2 decibels to d3 decibels, the ambient sound of the sound Vi (dy decibel) When the volume is less than the maximum of the predetermined range (d2 decibels), that is, dy<d2', the control unit 230 correspondingly lowers the volume of the playback sound Vo of the value unit 210, for example, it is reduced to the action effect 200. The second level volume "Level 2" is as shown in Fig. 4. Referring to Fig. 5, it is shown in Fig. 5 that the 调整 200 200 and its volume adjustment button 250 and the setting interface 260 are arranged in accordance with an embodiment of the present invention. Electrical intent. In this example, the setting interface 260 includes The screen 261 and the ~β button 262. The setting interface 260 has an automatic option 260a and a one-hand operation 260b, for example, displayed on the screen 261. The automatic option 26 is determined by the mobile phone 200 as an option, as shown in FIG. The step & will be shown. If the automatic option 260a is activated, for example, initiated by the user S3l as the key 262, it means that the mobile phone 2 will be executable, using the volume of the operating environment sound Vi and adjusting the playback. Sound v〇立^上上感感S340 and S350. If manual option 260b is activated, then two eight=two steps 骒2〇〇 can be based on the sound adjustment button 250 touches the sinking, to not operate the phone sound Vo volume As shown in step S32 of FIG. 3, in the above example, the setting interface 260 is a screen interface, and the operation key 262 is used to soften the mobile phone 2, and is not limited thereto. 'The above setting interface 260 can also be used in other ways. 9 201021527
里 WHOVOr/V 現。於本發明中’只要能藉由設定介面26〇選擇性地以手 動或自動的方式來調整行動電話2〇〇之播放音量，皆在本 發明之保護範圍内。 此外’請參照第6八及6Β圖其分別綠示依昭本發 明-實施例之行動電話扇之正面與背面之—例之示意 圖。如第6Α圖所示’行動電話200之播放單元21〇(如： 外八)係設置於行動電話·之正面之上側。再者，當行動 電話200進行通話時’例如係經由-收音單元290(如：麥 克風來接收通話時使用者之通話聲音Vp之音量，而此® 收音單兀290係設置於行動電話2〇〇之正面之下側。故於 實作中，環境聲音感測單元22()係可設置於行動電話謂 =側面’如第6A圖所示。或者’環境聲音感測單元22〇 亦可設置於行動電話200之背面，如第6B圖所示。如此， 3可避免環境聲音感測單&22〇感測到由播放單元2〇〇所 :供之播放聲音V。之音量、並避免感測到於進行通話 使用者提供至收音單元290之通話聲音％之音量， 響環境聲音感測單元220所感測之環境聲音％之音量。/⑩ 然亦不限於此。環境聲音感測單元22〇亦可設置於曰其 避免受到播放聲音Vo及通話聲音乂卩干擾之位置。、 於本發明上述所揭露之行動電話及其聲音調整方法 中，行動電話可感測其所在位置之環境聲音之音量，以依 據該環境聲音之音量’對應地調整行動電話之播放聲立之 音量。如此，在環境聲音之音量較大的場所下，行動^話 可自動地提高播放聲音之音量，以避免音量太小使得使用 201021527 者聽不清楚，而於在環境聲音之音量較小的場所下，行動 電話則可自動地降低播放聲音之音量，以避免音量太大而 造成使用者的不適。 綜上所述，雖然本發明已以一較佳實施例揭露如上， 然其並非用以限定本發明。本發明所屬技術領域中具有通 常知識者，在不脫離本發明之精神和範圍内，當可作各種 之更動與潤飾。因此，本發明之保護範圍當視後附之申請 專利範圍所界定者為準。 ❹ 【圖式簡單說明】 第1圖繪示依照本發明之一實施例之行動電話之音 量調整方法之流程圖。 第2圖繪示依照本發明之一實施例之行動電話之方 塊圖。 第3圖繪示為第2圖之行動電話所執行之音量調整方 法之一例之流程圖。 第4圖繪示依照本發明一實施例之行動電話之儲存 ® 單元所儲存之對照表之一例之示意圖。 第5圖繪示依照本發明一實施例之行動電話及其音 量調整按鍵及設定介面之一例之示意圖。 第6A及6B圖分別繪示依照本發明一實施例之行動 電話之正面與背面之一例之示意圖。 【主要元件符號說明】 200 :行動電話 11 201021527WHOVOr/V is now. In the present invention, it is within the scope of the present invention to adjust the playback volume of the mobile phone 2 by manually or automatically by setting the interface 26. In addition, please refer to the illustrations on the front and back sides of the mobile telephone fan of the embodiment of the present invention in the sixth and sixth figures. As shown in Fig. 6, the playback unit 21 of the mobile phone 200 (e.g., the outer eight) is placed on the front side of the mobile phone. Moreover, when the mobile phone 200 makes a call, for example, the volume of the user's call voice Vp is received via the radio unit 290 (for example, the microphone is received, and the ® radio 兀 290 is set on the mobile phone 2). The lower side of the front side. Therefore, in practice, the ambient sound sensing unit 22 () can be set on the mobile phone side = side view as shown in Fig. 6A. Or the 'ambient sound sensing unit 22 can also be set in The back of the mobile phone 200 is as shown in Fig. 6B. Thus, 3 can avoid the ambient sound sensing list & 22 〇 sensing the volume of the playback unit 2: for playing the sound V, and avoiding the sense The volume of the voice of the voice provided by the call user to the radio unit 290 is detected, and the volume of the ambient sound % sensed by the ambient sound sensing unit 220 is detected. The video sound sensing unit 22 is not limited thereto. It can also be disposed at a position that avoids interference from the playing sound Vo and the talking sound. In the mobile phone and the sound adjusting method thereof disclosed in the above, the mobile phone can sense the sound of the environmental sound at the location thereof. According to the volume of the ambient sound, the volume of the playing sound of the mobile phone is adjusted correspondingly. Thus, in a place where the volume of the ambient sound is large, the action can automatically increase the volume of the playing sound to avoid the volume too. The small one makes it impossible to use 201021527, and in the place where the ambient sound volume is small, the mobile phone can automatically reduce the volume of the playing sound to avoid the volume being too large and causing the user's discomfort. The present invention has been described above in terms of a preferred embodiment, and is not intended to limit the invention. It is intended to be a matter of ordinary skill in the art without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims. ❹ [Simple Description of the Drawings] FIG. 1 illustrates the volume adjustment of a mobile phone according to an embodiment of the present invention. FIG. 2 is a block diagram of a mobile phone according to an embodiment of the present invention. FIG. 3 is a mobile phone of FIG. A flowchart of an example of a volume adjustment method performed. FIG. 4 is a schematic diagram showing an example of a comparison table stored in a storage unit of a mobile phone according to an embodiment of the present invention. FIG. 5 is a diagram showing an embodiment of the present invention. FIG. 6A and FIG. 6B are respectively a schematic diagram showing an example of a front side and a back side of a mobile phone according to an embodiment of the present invention. Mobile phone 11 201021527
I W4iSU5KA 210 播放單元 220 環境聲音感測單元 230 控制單元 240 判斷單元 250 聲音調整按鍵 260 設定介面 260a :自動選項 260b :手動選項 270 :計時單元 ® 280 :儲存單元 LUT :對照表 S120、S140、S310〜S356 :流程步驟 Vi :環境聲音 Vo :播放聲音I W4iSU5KA 210 playback unit 220 ambient sound sensing unit 230 control unit 240 determination unit 250 sound adjustment button 260 setting interface 260a: automatic option 260b: manual option 270: timing unit 280: storage unit LUT: comparison table S120, S140, S310 ~S356: Process Step Vi: Ambient Sound Vo: Play Sound
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