@Sabir Ahmed I see the same behavior with East US region too. After testing some scenarios, I think the pitch would apply correctly if you used a full stop instead of a comma in your original SSML and I think this is causing the API to interpret the sentence to be incomplete and not applying the rate on part of the sentence as this is only applicable at sentence level.
This is the section where I changed a comma to a full stop.
“It isn’t the least bit of use.”
The entire SSML is:
<speak xmlns="http://www.w3.org/2001/10/synthesis" xmlns:mstts="http://www.w3.org/2001/mstts" xmlns:emo="http://www.w3.org/2009/10/emotionml" version="1.0" xml:lang="en-US"><voice name="en-US-SaraNeural">Much against his will Reddy obeyed. <prosody rate="default" pitch="28%" volume="default">“It isn’t the least bit of use.”</prosody> he grumbled, as he trotted towards the Big River. <prosody rate="default" pitch="28%" volume="default">“There won’t be anything there. It is just a waste of time.”</prosody></voice></speak>
Which renders to following in ACC tool in speech studio.
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