Use iPad’s microphone instead of Bluetooth speaker’s microphone

Is there a way by which I can use my iPad’s microphone instead of Bluetooth speaker’s microphone and stay connected to speaker for audio-out.

problem statement: I am connected to Bluetooth speaker which has mic in it too. But this speaker is too far from me. Now when I want to use Siri or audio to text input, It won’t work because I’m not so loud to make my voice reach Bluetooth speakers. Or, literally I have to shout so loud that my neighbours can hear me, which no one would want to do. So In short, I can’t use audio command when connected to big Bluetooth speaker with mic.