A good video has to come with an excellent audio quality. You will agree with me that poor quality of sound in any video usually distracts the audience.
You can enhance the sound through the use of the on-camera microphones, external microphones, and other audio recording devices.
You can find more information on this topic from http://www.techdaring.com/amazing-ways-to-boost-sound-quality-on-android-phones/Use of On-Camera Microphone to Enhance Video Recording Sound Quality
These cameras are built onto your camcorder. The camera picks up sound around the camcorder but not the subject. It’s advisable to go to a quiet room if you have to record your … Continue here