Print Page - Significant differense in spectrum of "Generic" compile 1.3.6 vs other compiles

Title: Significant differense in spectrum of "Generic" compile 1.3.6 vs other compiles
Post by: Rollin on 2019-03-15 18:59:26

Files created with generic version of oggenc2.exe 1.3.6 (http://www.rarewares.org/files/ogg/oggenc2.88-1.3.6-generic.zip) significantly differs by spectrum and bitrate from files created with old version (1.3.5) and also from other compiles of 1.3.6. Differences seem too big to be caused by different rounding of floating point. See pictures

-q9 1.3.5 from foobar2000 encoder pack vs 1.3.6 P4 Only compile (virtually no differences)
(https://i.imgur.com/gTNJyAa.png)

-q9 1.3.5 from foobar2000 encoder pack vs 1.3.6 Generic compile
(https://i.imgur.com/Ih6pAKo.png)

Title: Re: Significant differense in spectrum of "Generic" compile 1.3.6 vs other compiles
Post by: saratoga on 2019-03-15 21:24:26

You mean the tiny difference in rounding error at high frequencies? Turning off optimization probably reduces rounding slightly.

HydrogenAudio

Lossy Audio Compression => Ogg Vorbis => Ogg Vorbis - General => Topic started by: Rollin on 2019-03-15 18:59:26