Many professional Youtubers record the the audio for their videos separately and then add the audio stream in the video when they are editing the video. One advantage of this is that you can edit the audio stream, mix multiple audio streams together or add audio effects very easily because editing audio is much easier compared to editing a video stream. If you are looking for a good audio editor, then you may want to try Dexster Audio editor. It is a feature rich audio editor for creating, editing and modifying audio files. It supports all the audio file formats including the more popular ones along with full support for recording of Audio CDs. It offers a very convenient user interface (that reminds of Audacity or GoldWave) which is equipped with the most important tools and functions.
It has a tabbed interface and you are allowed to open multiple audio files in it at the same time. All the tools, effects and functions can be accessed from the toolbar or from the menubar through which we can perform various actions on audio files. It makes it very easy to remove and copy audio fragments, divide or join many audio files into one whole, as well as adding various effects and filters that will improve the quality of the audio file being edited.
Among the many audio effects, it features – Amplify, Compressor, Delay, Envelope, Equalizer, Expander, Fade, Flanger, noise, silence, Invert, Normalize, Phaser, Reverb, Reverse, Silence, Tempo, Trim, Vibrato, Chorus, Pitch Shift and Distortion. In addition, you can apply audio filters such as Band Pass Filter, FFT Filter, High Pass Filter, High Shelf Filter, Low Pass Filter, Low Shelf Filter, Notch Filter, Peak EQ Filter and FIR Filter.
Dexster audio editor can be used to convert the audio file formats, to restore the damaged audio files (audio retrieved from old audio tapes or old vinyl records), extract audio streams from audio CD, burn files to a CD, DVD or Blu-ray and more.
You can download Dexster audio editor from http://www.dexster.net/.