When a certain file (mp4, flv, etc) has a 95 kbps audio bitrate - does (is it aac?) (- And in general the answers seem to fall in one of the two positions represented by the most voted answers.)

The most voted two answers below ( this and this) seem to say different things, namely, the later says that Bitrates are not directly comparable and if the original audio is in a more efficient format, then the output ( less efficient) audio should have a somewhat superior bitrate (the same idea here and here) - but while the less efficient is mp3, I am not sure which exactly are the more efficient formats. Maybe a sub-question is useful: is the answer dependent on the type of the output file (lossless or lossy)? The question is just about the usefulness of optionally increasing the bitrate when converting. Only that in some cases an original cd/wave may be unavailable. Please consider that I am aware that converting between lossy formats is not recommendable. (Except for going from a lossless format to the original wave.) I am talking whether an output with a higher bitrate than the input will have a better quality than it might otherwise have. I am not talking about the output having better quality than the input: obviously, that is not possible. Would this result in higher audio quality or just in a bigger file? When a certain file (mp4, flv, etc) has a 95 kbps audio bitrate - does it make sense outputing to a higher bitrate when converting to mp3 or other format (be it lossy or not)? Answers without enough detail may be edited or deleted. Want to improve this post? Provide detailed answers to this question, including citations and an explanation of why your answer is correct.

Bitrate converter mp3