Size comparison: wav versus MP3
It depends on the bitrate you select when you convert the .wav to .mp3. For some basic stats, ripping a CD to MP3, you start out with:
2 channels of 16bit audio at 44.1KHz = 2 x 16 x 44,100 = 1,411,200 bits/sec, or 172kbyte/sec
Traditionally, wav->mp3 conversions were done at 128kbit, or 16kbyte/sec
So, 172 / 16 = 10.75:1 compression
Voice recordings don't need the full 16/44.1 recording spectrum, since human voices generally max out at 8khz mono. For telephone quality, it's 8bit @ 8khz mono, or about 8kbyte/s. Compressed to mp3 at an appropriate bit rate (figuring a normal 10:1 ratio), you end up with 0.8kbyte/sec, or 819.2bytes/sec.
Related videos on Youtube
Emmanuel
Updated on November 20, 2022Comments
-
Emmanuel over 1 year
How much space do I save with MP3 compression of audio compared to .wav files?
In particular I'm looking for voice recordings, not so much music.
Any benchmark data about this? Links?