Audio podcast optimization: decreasing bit rate preserving high quality

Audio Compression Optimization: MP3, AAC, OGG

This paper will give you understanding on how one can achieve better
compression ratio by bit rate optimization. The key point is that our
approach describes a fully automated manner of choosing the bit rate
that will preserve the audio quality you define. Read this paper
through and find out how to save on size when encoding your podcasts,
save on bandwidth when transmitting your audio streams in the network,
make more audio tracks fit your memory stick when grabbed from a CD,
or store more audio books on your mobile device. This paper will tell
you how to save up to 50% on audio file size and up to 50% on the bit
rate you encode your audio with still having a descent sound quality.

Read full text of how to encode audio with lowest bit rate at highest
quality in this blog post:
http://blog.sevana.fi/optimize-bitrate-and-size-preserving-high-audio-quality-in-tracks-podcasts-tunes-with-aqua-wideband/