$9.99
Cool Audio to MP3 Converter is an all-in-one and super powerful MP3 audio conversion software. With Cool Audio to MP3 Converter, you can convert almost all media including AVI, WMV, MPEG, MP4, ASF, VOB, 3GP, iPhone, MOV and FLV video and MP3, AAC, AC3, AMR, M4A, OGG, and WAV audio to MP3 audio format. It is very simple and easy to use. Just a few clicks to finish the conversion.
File Extension .WAV
Standard digital audio file format used for storing waveform data; allows audio recordings to be saved with different sampling rates and bitrates; often saved in a 44.1 KHz, 16-bit, stereo format, which is the standard format used for CD audio.
You can use spotify service while avoid the ads by importing your own music to spotify from local hard drive, if a playlist is mixed with spotify music and music you own, the timer that expose you to an ads once in a while will stop while playing local uploaded music. spotify accepts music import from local hard drive in mp3 and m4a formats, unfortunately, WAV music is not included.
So how to import WAV to Spotify, how to convert WAV to mp3 which can be imported to spotify
The walk through
First download WAV to Spotify converter.

Add files to WAV to Spotify converter.
Set the output audio format as mp3 or m4a.
Click start to convert WAV to Spotify supported formats, mp3 or m4a.
Now you dilute the intensity of ads while you enjoying music with spotify.
Buy Cool Audio to MP3 Converter $9.99
Download Cool Audio to MP3 Converter3.48 MB