Hi Hui,
The Speak Cells activate directions are clear and gets it done.
The OP mentions Speech Recognition, which I believe is different. I muddled about to install Speech recognition, and do have it installed. However, the few times I tried it didn't impress me, to wit: seemed not to be able to recognize the alphabet as I pronounced it.
I wanted to be able to say a letter and it would be entered into the cell, or multiple letters in the same cell. I was unimpressed with the results, but it seems I understood that it takes time and repetition for it to become 'fluent' in recognizing my voice. I'm hazy on this.
Do you have any wisdom of Speech Recognition you can pass on?
Regards,
Howard