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

Update quotas

Author: sally-baolian

articles/cognitive-services/Speech-Service/speech-services-quotas-and-limits.md

@@ -68,13 +68,13 @@ In the following tables, the parameters without the **Adjustable** row aren't ad
 
 | Quota | Free (F0)<sup>3</sup> | Standard (S0) |
 |--|--|--|
-| *Max number of transactions per second (TPS) per Speech service resource* |  |  |
-| Real-time API. Prebuilt neural voices and custom neural voices. | 200<sup>4</sup> | 200<sup>4</sup> |
+| **Max number of transactions per second (TPS) per Speech service resource** |  |  |
+| Real-time API. Prebuilt neural voices and custom neural voices. | 20 per 60 seconds | 200<sup>4</sup> |
 | Adjustable | No<sup>4</sup> | Yes<sup>4</sup> |
-| *HTTP-specific quotas* |  |  |
+| **HTTP-specific quotas** |  |  |
 | Max audio length produced per request | 10 min | 10 min |
 | Max total number of distinct `<voice>` and `<audio>` tags in SSML | 50 | 50 |
-| *Websocket specific quotas* |  |  |
+| **Websocket specific quotas** |  |  |
 | Max audio length produced per turn | 10 min | 10 min |
 | Max total number of distinct `<voice>` and `<audio>` tags in SSML | 50 | 50 |
 | Max SSML message size per turn | 64 KB | 64 KB |
@@ -102,6 +102,13 @@ In the following tables, the parameters without the **Adjustable** row aren't ad
 | Default value | N/A | 10 |
 | Adjustable | N/A | Yes<sup>5</sup> |
 
+#### Audio Content Creation tool 
+
+| Quota | Free (F0)| Standard (S0) |
+|--|--|--|
+| File size  | 3,000 characters per file | 20,000 characters per file |
+| Export to audio library | 1 concurrent task | N/A |
+
 <sup>3</sup> For the free (F0) pricing tier, see also the monthly allowances at the [pricing page](https://azure.microsoft.com/pricing/details/cognitive-services/speech-services/).<br/>
 <sup>4</sup> See [additional explanations](#detailed-description-quota-adjustment-and-best-practices) and [best practices](#general-best-practices-to-mitigate-throttling-during-autoscaling).<br/>
 <sup>5</sup> See [additional explanations](#detailed-description-quota-adjustment-and-best-practices), [best practices](#general-best-practices-to-mitigate-throttling-during-autoscaling), and [adjustment instructions](#text-to-speech-increase-concurrent-request-limit-for-custom-neural-voices).<br/>