A. 1. Check microphone settings: Open the app and navigate to 'Settings' > 'Audio' to ensure that the microphone is enabled and configured correctly. 2. Reduce background noise: Ensure that the camera is placed in a location with minimal background noise to improve audio clarity. 3. Test with different audio settings: If the app has audio quality settings, experiment with them to find the best option.

B. 4. Use an external microphone: If the camera supports it, consider using an external microphone for better audio quality.