I'll give you two examples Malsua;
IWalkTheLine-JCash.mp3 2.50MB LINK
IWalkTheLine-JCash.wav 486kb LINK
StandByMe-BenKing.mp3 3.45MB LINK
StandByMe-BenKing.wav 433.kb LINK
>> IWalkTheLine-JCash.mp3 2.50MB LINK
IWalkTheLine-JCash.wav 486kb LINK<<
You’ll see that the one labeled .wav is a 24kbit audio rate and the one labeled .mp3 is 128kbit audio rate. 5 times the number of bits in the 128kbit mp3 and 5 times the file size of the 24kbit.
You may be ok with 24kbit recordings, but they sound tinny and hollow to me.
I just converted the MP3 to a genuine, uncompressed file and it was 57mbs. WAV files are uncompressed, all things being equal(like length, bitrate, etc) an MP3 will always be up to 10 times smaller.
A CD-quality standard WAV file takes about 10 megabytes to store one minute of music. 44,100 samples per second at 2 bytes per sample times two channels equals 172 KB per second, *60 = 10 MB per minute. An MP3 at 128 kilobits per second takes only about 937 KB per minute, less than one-tenth the size, but with a somewhat noticeable loss of quality compared to the WAV. A high-quality 320 kbits/sec MP3 that’s hard to distinguish from CD/WAV quality (likely only audiophiles with high-end equipment will notice the difference) takes only 2.3 MB per minute .
So either yours are very low quality or they are compressed with MP3 or something else inside the WAV container. Later I’ll take some time to download your files, examine them, and tell you what’s up.