Which type of blog consists of recordings as it’s major part

The answer is the audioblog

Explanation:

An audioblog is a variant of a blog that consists of uploading a series of periodically updated publications of a respective topic to the web, an audio gallery that you can listen to at any time through a computer or a smartphone.

These audios or recordings can usually be found in MP3 or WAV format.

answer///radio frequency interference (rfi);