Update speech-services-quotas-and-limits.md

Author: sally-baolian

articles/ai-services/speech-service/speech-services-quotas-and-limits.md

@@ -115,11 +115,17 @@ The limits in this table apply per Speech resource when you create a personal vo
 | REST API limit (not including speech synthesis) | Not available for F0 | 50 requests per 10 seconds |
 | Max number of transactions per second (TPS) for speech synthesis|Not available for F0  |200 transactions per second (TPS) (default value)  |
 
+#### Batch text to speech avatar 
+
+| Quota | Free (F0)| Standard (S0) |
+|-----|-----|-----|
+| REST API limit  | Not available for F0 | 2 requests per 1 minute  |
+
 #### Real-time text to speech avatar
 
 | Quota | Free (F0)| Standard (S0) |
 |-----|-----|-----|
-| New connections per minute | Not available for F0 | Two new connections per minute |
+| New connections per minute | Not available for F0 | 2 new connections per minute |
 
 #### Audio Content Creation tool
 
@@ -297,3 +303,14 @@ Initiate the increase of the limit for concurrent requests for your resource, or
    - Any other required information.
 1. On the **Review + create** tab, select **Create**.
 1. Note the support request number in Azure portal notifications. You're contacted shortly about your request.
+
+### Text to speech avatar: increase new connections limit
+
+To increase the limit of new connections per minute for text to speech avatar, contact your sales representative to create a [ticket](https://portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview) with the following information:
+
+- Speech resource URI
+- Requested new limitation to increase to
+- Justification for the increase
+- Starting date for the increase
+- Ending date for the increase
+- Prebuilt avatar or custom avatar