Premiere Pro: Voukoder AAC sound quality issue

Does this happen with the Fraunhofer AAC encoder too? Did you test this?

What about if you export raw pcm?

I guess there might be an issue with the 32 bit float data coming out of premiere.

• So the audio data (float32) from premiere is pretty much okay.
• float32 -> s16le (pcm) is okay too
• float32 will be directly send to the aac encoder as "fltp" (no conversion)
• it has to do with the aac encoder

Maybe it has to do with the options?

-aac_coder <int> E...A.... Coding algorithm (from 0 to 2) (default fast)

anmr E...A.... ANMR method

twoloop E...A.... Two loop searching method

fast E...A.... Default fast search

-aac_ms <boolean> E...A.... Force M/S stereo coding (default auto)

-aac_is <boolean> E...A.... Intensity stereo coding (default true)

-aac_pns <boolean> E...A.... Perceptual noise substitution (default true)

-aac_tns <boolean> E...A.... Temporal noise shaping (default true)

-aac_ltp <boolean> E...A.... Long term prediction (default false)

-aac_pred <boolean> E...A.... AAC-Main prediction (default false)

-aac_pce <boolean> E...A.... Forces the use of PCEs (default false)

Regarding FDK AAC: RE: A better AAC encoder: FDK-AAC

The link should be working now.