Getting DisplayText attribute as null from Speech To Text Rest API while using from Postman

Siddharth Gorowara 1 Reputation point

This is the request I am sending:-
and getting below response:-
"RecognitionStatus": "Success",
"Offset": 300000,
"Duration": 301200000,
"DisplayText": ""

Could you please help me in understanding why displayText is null. PS the audio file is wav and has clear speech

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