Audio Recording Tool

Does anyone have any suggestions on how to eliminate the background noise or the buzzing sound when using the Audio Recording Tool in version 9. I'm trying to record a 2 minute audio in Lectora, but it's not coming out too clear.Does anyone have any suggestions on how to eliminate the background noise or the buzzing sound when using the Audio Recording Tool in version 9. I'm trying to record a 2 minute audio in Lectora, but it's not coming out too clear.

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