The most common audio problem with podcast audio and home-recorded music is background noise. The second most common audio problem is hum or buzz.

Podcast is defined as “a digital recording of a radio broadcast or similar program, made available on the Internet for downloading to a personal audio player.” The concept became so popular that the New Oxford American Dictionary declared “Podcast” as Word of the Year 2005.
Though the term Podcast is coined using a combination of iPod [...]

DV Show recommends the Sony ECM-T6 Sony Tie Tac Lavaliere Microphone for home video - it’s corded, costs around $12 and clips to your collar or pocket.

This wired lavaliere microphone by Sony is a great inexpensive microphone for home videos. Unlike many other lavaliere microphones the tie clip is large and easy to manipulate. [...]