Merge pull request #207216 from sally-baolian/patch-49

Update speech-ssml-phonetic-sets.md

Author: prmerger-automator[bot]

articles/cognitive-services/Speech-Service/speech-ssml-phonetic-sets.md

@@ -18,20 +18,24 @@ Phonetic alphabets are used with the [Speech Synthesis Markup Language (SSML)](s
 
 Speech service supports the [International Phonetic Alphabet (IPA)](https://en.wikipedia.org/wiki/International_Phonetic_Alphabet) suprasegmentals that are listed here. You set `ipa` as the `alphabet` in [SSML](speech-synthesis-markup.md#use-phonemes-to-improve-pronunciation). 
 
-|`ipa` | Symbol         | 
-|-------|-------------------|
-| `ˈ`   | Primary stress     | 
-| `ˌ`   | Secondary stress   | 
-| `.`   | Syllable boundary  | 
-| `ː`   | Long  | 
-| `‿`   | Linking   | 
-> [!NOTE]
-> long suprasegmental symbol is `ː` not the punctuation colon `:`.
+|`ipa` | Symbol         | Note|
+|-------|-------------------|-------------------|
+| `ˈ`   | Primary stress     |  Don’t use single quote ( ‘ or ' ) though it looks similar.  |
+| `ˌ`   | Secondary stress   | Don’t use comma ( , ) though it looks similar.                 |
+| `.`   | Syllable boundary  |                  |
+| `ː`   | Long  | Don’t use colon ( : or ：) though it looks similar.         |
+| `‿`   | Linking   |           |
+
+> [!TIP]
+> You can use [the international phonetic alphabet keyboard](https://www.internationalphoneticalphabet.org/html-ipa-keyboard-v1/keyboard/) to create the correct `ipa` suprasegmentals.
 
 For some locales, Speech service defines its own phonetic alphabets, which ordinarily map to the [International Phonetic Alphabet (IPA)](https://en.wikipedia.org/wiki/International_Phonetic_Alphabet). The eight locales that support the Microsoft Speech API (SAPI, or `sapi`) are en-US, fr-FR, de-DE, es-ES, ja-JP, zh-CN, zh-HK, and zh-TW. For those eight locales, you set `sapi` or `ipa` as the `alphabet` in [SSML](speech-synthesis-markup.md#use-phonemes-to-improve-pronunciation). 
 
 See the sections in this article for the phonemes that are specific to each locale.
 
+> [!NOTE]
+> The following tables list viseme IDs corresponding to phonemes for different locales. When viseme ID is 0, it indicates silence.
+
 ## ar-EG/ar-SA
 [!INCLUDE [ar-EG](./includes/phonetic-sets/text-to-speech/ar-eg.md)]