Questions about MP3 distortion- SRC process

I am getting unwanted MP3 distortion (fraunhofer 320kbps) after mastering in Wavelab 8. Is there a target headroom that people are using to optimize MP3 sound quality?

I record at 88.1/32 bit float in Cubase 6, then export to Wavelab. Am I better off first thing doing a SRC (without dithering) in Wavelab to a 44.1/32 bit float conversion, and then working on that file to compress/eq limit/dither? Or. can I compress/eq/limit/SRC/dither the original file imported into Wavelab from Cubase all in one process?

Thank you to anybody who provides experience/insight. I appreciate it very much


Keep the high resolution sample rate to the end
and leave about -1 dB or 0.5 dB before encoding
to avoid possible distort the signal/level (headroom)

one way to check what encoder’s is doing is with sine tone
and analys/compare before and after in WL.

regards S-EH

Thanks S-EH

Do you sample rate convert to 44.1 32 float before doing any compression/limiting?

Try both way’s to see/hear what you like best
one idea is to keep the highest resolution but
maybe this depends on the plugins so as “PG” recommend is
experiment to see/hear :slight_smile:

regards S-EH