Fix PR build warning

Author: Ling-Cao

articles/ai-services/speech-service/batch-synthesis-properties.md

@@ -49,10 +49,10 @@ Batch synthesis properties are described in the following table.
 |`status`|The batch synthesis processing status.<br/><br/>The status should progress from "NotStarted" to "Running", and finally to either "Succeeded" or "Failed".<br/><br/>This property is read-only.|
 |`synthesisConfig`|The configuration settings to use for batch synthesis of plain text.<br/><br/>This property is only applicable when `inputKind` is set to `"PlainText"`.|
 |`synthesisConfig.backgroundAudio`|The background audio for each audio output.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
-|`synthesisConfig.backgroundAudio.fadein`|The duration of the background audio fade-in as milliseconds. The default value is `0`, which is the equivalent to no fade in. Accepted values: `0` to `10000` inclusive.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
-|`synthesisConfig.backgroundAudio.fadeout`|The duration of the background audio fade-out in milliseconds. The default value is `0`, which is the equivalent to no fade out. Accepted values: `0` to `10000` inclusive.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
-|`synthesisConfig.backgroundAudio.src`|The URI location of the background audio file.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This property is required when `synthesisConfig.backgroundAudio` is set.|
-|`synthesisConfig.backgroundAudio.volume`|The volume of the background audio file. Accepted values: `0` to `100` inclusive. The default value is `1`.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
+|`synthesisConfig.backgroundAudio.fadein`|The duration of the background audio fade-in as milliseconds. The default value is `0`, which is the equivalent to no fade in. Accepted values: `0` to `10000` inclusive.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice.md#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
+|`synthesisConfig.backgroundAudio.fadeout`|The duration of the background audio fade-out in milliseconds. The default value is `0`, which is the equivalent to no fade out. Accepted values: `0` to `10000` inclusive.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice.md#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
+|`synthesisConfig.backgroundAudio.src`|The URI location of the background audio file.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice.md#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This property is required when `synthesisConfig.backgroundAudio` is set.|
+|`synthesisConfig.backgroundAudio.volume`|The volume of the background audio file. Accepted values: `0` to `100` inclusive. The default value is `1`.<br/><br/>For information, see the attributes table under [add background audio](speech-synthesis-markup-voice.md#add-background-audio) in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
 |`synthesisConfig.pitch`|The pitch of the audio output.<br/><br/>For information about the accepted values, see the [adjust prosody](speech-synthesis-markup-voice.md#adjust-prosody) table in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
 |`synthesisConfig.rate`|The rate of the audio output.<br/><br/>For information about the accepted values, see the [adjust prosody](speech-synthesis-markup-voice.md#adjust-prosody) table in the Speech Synthesis Markup Language (SSML) documentation. Invalid values are ignored.<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|
 |`synthesisConfig.role`|For some voices, you can adjust the speaking role-play. The voice can imitate a different age and gender, but the voice name isn't changed. For example, a male voice can raise the pitch and change the intonation to imitate a female voice, but the voice name isn't be changed. If the role is missing or isn't supported for your voice, this attribute is ignored.<br/><br/>For information about the available styles per voice, see [voice styles and roles](language-support.md?tabs=tts#voice-styles-and-roles).<br/><br/>This optional property is only applicable when `inputKind` is set to `"PlainText"`.|

articles/ai-services/speech-service/migrate-to-batch-synthesis.md

@@ -14,13 +14,14 @@ ms.custom: devx-track-csharp
 
 # Migrate code from Long Audio API to Batch synthesis API
 
-The [Batch synthesis API](batch-synthesis.md) (Preview) provides asynchronous synthesis of long-form text to speech. This article describes the benefits of upgrading from Long Audio API to Batch synthesis API, and details about how to do so.
+The [Batch synthesis API](batch-synthesis.md) provides asynchronous synthesis of long-form text to speech. This article describes the benefits of upgrading from Long Audio API to Batch synthesis API, and details about how to do so.
 
-> [!IMPORTANT] > [Batch synthesis API](batch-synthesis.md) is currently in public preview. Once it's generally available, the Long Audio API will be deprecated.
+> [!IMPORTANT]
+> [Batch synthesis API](batch-synthesis.md) is generally available. the Long Audio API will be retired on April 1st, 2027.
 
 ## Base path and version
 
-Update the endpoint from `https://YourSpeechRegion.customvoice.api.speech.microsoft.com` to `https://YourSpeechRegion.api.cognitive.microsoft.com`.
+Update the endpoint from `https://YourSpeechRegion.customvoice.api.speech.microsoft.com` to `https://YourSpeechRegion.api.cognitive.microsoft.com` or you can custom domain instead: `https://{customDomainName}.cognitiveservices.azure.com/`.
 
 Update the base path in your code from `/texttospeech/v3.0/longaudiosynthesis` to `/texttospeech/batchsyntheses`.
 
@@ -30,7 +31,7 @@ For example, to list synthesis jobs for your Speech resource in the `eastus` reg
 
 ## Regions and endpoints
 
-Batch synthesis API is available in all [Speech regions](regions.md).
+Batch synthesis API is available in more [Speech regions](regions.md).
 
 The Long Audio API is limited to the following regions:
 
@@ -52,7 +53,7 @@ The Long Audio API is limited to the set of voices returned by a GET request to
 
 ## Text inputs
 
-Batch synthesis text inputs are sent in a JSON payload of up to 500 kilobytes (TODO).
+Batch synthesis text inputs are sent in a JSON payload of up to 2 megabytes.
 
 Long Audio API text inputs are uploaded from a file that meets the following requirements:
 

articles/ai-services/speech-service/regions.md

@@ -51,12 +51,12 @@ The following regions are supported for Speech service features such as speech t
 | Middle East   | UAE North            | `uaenorth` <sup>6</sup>                 |
 | South America | Brazil South         | `brazilsouth` <sup>6</sup>              |
 | Qatar         | Qatar Central        | `qatarcentral`<sup>3,8</sup>            |
-| US            | Central US           | `centralus`                 |
+| US            | Central US           | `centralus`                             |
 | US            | East US              | `eastus` <sup>1,2,4,5,7,9</sup>         |
 | US            | East US 2            | `eastus2` <sup>1,2,4,5</sup>            |
 | US            | North Central US     | `northcentralus` <sup>4,6</sup>         |
 | US            | South Central US     | `southcentralus` <sup>1,2,4,5,6,7</sup> |
-| US            | West Central US      | `westcentralus` <sup>3,5</sup>            |
+| US            | West Central US      | `westcentralus` <sup>3,5</sup>          |
 | US            | West US              | `westus` <sup>2,5</sup>                 |
 | US            | West US 2            | `westus2` <sup>1,2,4,5,7</sup>          |
 | US            | West US 3            | `westus3` <sup>3</sup>                  |