Sound Design Stack Exchange is a question and answer site for sound engineers, producers, editors, and enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Does encoding a low bit rate (say 128 kbps) Mp3 from a 320 kbps Mp3 produce the same thing as encoding it from the original lossless? Or does the way Mp3 work mean that the losses compound on each other?

share|improve this question

migrated from Jan 27 '14 at 15:07

This question came from our site for engineers, producers, editors, and enthusiasts spanning the fields of video, and media creation.

You wouldn't get the same result as you would if encoding from the original source. The losses do compound. But 320 kbps is high enough that a one-generation-removed re-encode to 128 kbps would be perceptually acceptable.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.