Merge pull request #212961 from sally-baolian/patch-66

Update release-notes-tts.md

Author: prmerger-automator[bot]

articles/cognitive-services/Speech-Service/includes/release-notes/release-notes-tts.md

@@ -5,6 +5,23 @@ ms.topic: include
 ms.date: 01/24/2022
 ms.author: eur
 ---
+
+### 2022-September release
+
+#### Prebuilt Neural TTS Voice
+
+* All the prebuilt neural voices have been upgraded to high-fidelity voices with 48kHz sample rate. 
+
+### 2022-August release
+
+#### Prebuilt Neural TTS Voice
+
+Released new voices in public preview:
+* Voices for English (United States): `en-US-AIGenerate1Neural` and `en-US-AIGenerate2Neural`.
+* Voices for Chinese dialects: `zh-CN-henan-YundengNeural`, `zh-CN-shaanxi-XiaoniNeural`, and `zh-CN-shandong-YunxiangNeural`. 
+
+For more information, see the [language and voice list](../../language-support.md?tabs=stt-tts).
+
 ### 2022-July release
 
 #### Prebuilt Neural TTS Voice

articles/cognitive-services/Speech-Service/releasenotes.md

@@ -21,7 +21,8 @@ See below for information about changes to Speech services and resources.
 
 * Speech SDK 1.23.0 and Speech CLI 1.23.0 were released in July 2022. See details below.
 * Custom speech-to-text container v3.1.0 released in March 2022, with support to get display models.
-* TTS Service July 2022, new voices in Public Preview and new viseme feature blend shapes were released. See details below.
+* TTS Service August 2022, five new voices in public preview were released.
+* TTS Service September 2022, all the prebuilt neural voices have been upgraded to high-fidelity voices with 48kHz sample rate.
 
 ## Release notes