Added advisory details.

Author: IEvangelist

articles/cognitive-services/Speech-Service/includes/service-pricing-advisory.md

@@ -0,0 +1,15 @@
+---
+title: Speech Services
+titleSuffix: Azure Cognitive Services
+services: cognitive-services
+author: IEvangelist
+manager: nitinme
+ms.service: cognitive-services
+ms.subservice: speech-service
+ms.topic: include
+ms.date: 12/02/2019
+ms.author: dapine
+---
+
+> [!NOTE]
+> When testing, the system will perform a transcription. This is important to keep in mind, as pricing varies per service offering and subscription level. Always refer to the official Azure Cognitive Services pricing - Speech Services for [the latest details](https://azure.microsoft.com/pricing/details/cognitive-services/speech-services).