Audio Controlled Motor

I submitted a query - and was told I repeated myself about synchronizing a motor start/stop with audio input …. but you keep repeating yourselves ! In an electronics environment, what about “synchronizing” do you not understand ? The audio is a spoken phrase - I want to start the motor when the phrase begins and stop it at pauses ….

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A particular spoken phrase, or any spoken phrase?

Currently, it is a Greeting Phrase, using an ISD1820 and my own voice - but I hope to make this a generic operation for any recorded Audio input ….