

本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# 新增呼吸聲
<a name="breath-tag"></a>

*<amazon:breath> 和 <amazon:auto-breaths>*

只有標準 TTS 格式才支援此標籤。

自然音調的語音包含正確發音的字詞以及呼吸聲。新增呼吸聲至合成語音中，可讓語音聽起來更加自然。`<amazon:breath>` 和 `<amazon:auto-breaths>` 標籤提供呼吸聲。您有下列選項：
+  手動模式：您設定文字中呼吸聲的出現的位置、長度以及音量
+  自動化模式：Amazon Polly 會自動將呼吸聲插入語音輸出
+  混合模式：您和 Amazon Polly 都會新增呼吸聲 

**手動模式**  
在手動模式中，您將 `<amazon:breath/>` 標籤放入輸入文字內想要加入呼吸聲的位置。您可以分別使用 `duration` 和 `volume` 屬性來自訂呼吸聲的長度和音量：


+ `duration`：控制呼吸聲的長度。有效值為：`default`、`x-short`、`short`、`medium`、`long`、`x-long`。預設值為 `medium`。
+ `volume`：控制呼吸聲的音量。有效值為：`default`、`x-soft`、`soft`、`medium`、`loud`、`x-loud`。預設值為 `medium`。

**注意**  
每個屬性值的確切長度和音量取決於使用的特定 Amazon Polly 語音。

若要使用預設值來設定呼吸聲，請使用沒有屬性的 `<amazon:breath/>`。

例如，若要使用屬性來設定呼吸聲的長度與音量為中等，可將屬性設定如下：

```
<speak>
     Sometimes you want to insert only <amazon:breath duration="medium" volume="x-loud"/>a single breath.
</speak>
```

若要使用預設值，您只需使用標籤：

```
<speak>
     Sometimes you need <amazon:breath/>to insert one or more average breaths <amazon:breath/> so that the 
     text sounds correct.
</speak>
```

您可以新增呼吸聲到段落中，如下所示：

```
<speak>
     <amazon:breath duration="long" volume="x-loud"/> <prosody rate="120%"> <prosody volume="loud"> 
     Wow! <amazon:breath duration="long" volume="loud"/> </prosody> That was quite fast. <amazon:breath 
     duration="medium" volume="x-loud"/> I almost beat my personal best time on this track. </prosody>
</speak>
```

**自動模式**  
在自動化模式下，您可以使用 `<amazon:auto-breaths>`標籤，指示 Amazon Polly 以適當的間隔自動建立呼吸雜訊。您可以設定間隔的頻率、呼吸聲音量以及呼吸聲長度。將 `</amazon:auto-breaths>` 標籤置於您想要加入自動呼吸聲的文字開頭，然後在尾端加上結束標籤。

**注意**  
與手動模式標籤不同，`<amazon:breath/>`、`<amazon:auto-breaths>` 標籤需要結束標記 (`</amazon:auto-breaths>`)。

您可以使用以下含有 `<amazon:auto-breaths>` 標籤的可選屬性：
+ `volume`：控制呼吸聲的音量。有效值為：`default`、`x-soft`、`soft`、`medium`、`loud`、`x-loud`。預設值為 `medium`。
+ `frequency`：控制呼吸聲在文字中發生的頻率。有效值為：`default`、`x-low`、`low`、`medium`、`high`、`x-high`。預設值為 `medium`。
+ `duration`：控制呼吸聲的長度。有效值為：`default`、`x-short`、`short`、`medium`、`long`、`x-long`。預設值為 `medium`。

在預設情況下，呼吸聲的頻率將取決於輸入文字。不過，呼吸聲經常出現在逗號和句點之後。

下列範例示範如何使用 `<amazon:auto-breaths>` 標籤：若要決定您的內容要使用哪些選項，請將適用的範例複製到 Amazon Polly 主控台，並聆聽差異。
+  使用不含選用參數的自動模式。

  ```
  <speak>
       <amazon:auto-breaths>Amazon Polly is a service that turns text into lifelike speech, 
       allowing you to create applications that talk and build entirely new categories of speech-
       enabled products. Amazon Polly is a text-to-speech service that uses advanced deep learning 
       technologies to synthesize speech that sounds like a human voice. With dozens of lifelike 
       voices across a variety of languages, you can select the ideal voice and build speech-
       enabled applications that work in many different countries.</amazon:auto-breaths>
  </speak>
  ```
+  使用含有音量控制的自動模式。未指定參數 (`duration` 與 `frequency`) 皆設為預設值 (`medium`)。

  ```
  <speak>
       <amazon:auto-breaths volume="x-soft">Amazon Polly is a service that turns text into lifelike 
       speech, allowing you to create applications that talk and build entirely new categories of 
       speech-enabled products. Amazon Polly is a text-to-speech service, that uses advanced deep 
       learning technologies to synthesize speech that sounds like a human voice. With dozens of 
       lifelike voices across a variety of languages, you can select the ideal voice and build speech-
       enabled applications that work in many different countries.</amazon:auto-breaths>
  </speak>
  ```
+  使用含有頻率控制的自動模式。未指定參數 (`duration` 與 `volume`) 皆設為預設值 (`medium`)。

  ```
  <speak>
       <amazon:auto-breaths frequency="x-low">Amazon Polly is a service that turns text into lifelike 
       speech, allowing you to create applications that talk and build entirely new categories of 
       speech-enabled products. Amazon Polly is a text-to-speech service, that uses advanced deep 
       learning technologies to synthesize speech that sounds like a human voice. With dozens of 
       lifelike voices across a variety of languages, you can select the ideal voice and build speech-
       enabled applications that work in many different countries.</amazon:auto-breaths>
  </speak>
  ```
+  使用含有多個參數的自動模式。對於未指定的`Duration`參數，Amazon Polly 會使用預設值 (`medium`)。

  ```
  <speak>
       <amazon:auto-breaths volume="x-loud" frequency="x-low">Amazon Polly is a service that turns 
       text into lifelike speech, allowing you to create applications that talk and build entirely new 
       categories of speech-enabled products. Amazon Polly is a text-to-speech service, that uses 
       advanced deep learning technologies to synthesize speech that sounds like a human voice. With 
       dozens of lifelike voices across a variety of languages, you can select the ideal voice and build 
       speech-enabled applications that work in many different countries.</amazon:auto-breaths>
  </speak>
  ```

