[redshifter]

i was testing an ogg vorbis file at 256kbps vbr against a lame ape file for quality. the track was a mozart piano concerto. i could distinctly hear on the ogg track the pitch was off. it sounded like when you slow down a record while it plays. the mp3 file was rock solid with no pitch problems at all. is this a known issue with ogg?!

 

[scottder]

What version of oggend did you use? What settings? What version of lame did you use?

Scott

 

[redshifter]

Quote:

Originally Posted by scottder What version of oggend did you use? What settings? What version of lame did you use? Scott

oggenc.exe ver 1.01 setting -b 256. lame.exe ver 3.90.3 --alt-preset extreme.

 

[scottder]

Probably better off using -q options for OGG vorbis, also grab 1.1.0 from rarewares.org, it's the latest release. What are you using for playback?

Scott

 

[necropimp]

-q 8 i believe is ~256kbps

 

[Mr.Radar]

IIRC, the 1.0.x series encoders had some slight distortion/boost in the highs which is fixed in the latest 1.1.0 release (which also has improved sound quality). Also, to get the best sound quality from Ogg Vorbis you should use the quality-level-based VBR mode (the CBR/ABR mode was included mainly for streaming audio and so that people wouldn't complain about lack of CBR/ABR support). Q6 (192 kbps on average) and above is generally considered to be completely transparant, however you should let your ears decide for themselves with ABX testing.

 

[scottder]

Quote:

Originally Posted by Mr.Radar Q6 (192 kbps on average) and above is generally considered to be completely transparant, however you should let your ears decide for themselves with ABX testing.

I played around a bit, with 1.1.0, down as far as Q4 sounded pretty good by my ears, never hit any major troublesome tracks.

 

[Iron_Dreamer]

Quote:

Originally Posted by Mr.Radar IIRC, the 1.0.x series encoders had some slight distortion/boost in the highs which is fixed in the latest 1.1.0 release (which also has improved sound quality). Also, to get the best sound quality from Ogg Vorbis you should use the quality-level-based VBR mode (the CBR/ABR mode was included mainly for streaming audio and so that people wouldn't complain about lack of CBR/ABR support). Q6 (192 kbps on average) and above is generally considered to be completely transparant, however you should let your ears decide for themselves with ABX testing.

I used Q6.66 for my iRiver, and I'm very happy with the sound quality using my E5's, I've certainly noticed no strange pitch changes or anything of the sort.

 

[scottder]

Quote:

Originally Posted by Iron_Dreamer I used Q6.66 for my iRiver, and I'm very happy with the sound quality using my E5's, I've certainly noticed no strange pitch changes or anything of the sort.

Q6.66 - Bitrate of the Beast?

 

[mech_e]

Quote:

Originally Posted by scottder Q6.66 - Bitrate of the Beast?

Tracks encoded at this have subliminal messages that your cans, amp, and source are insufficient and you must upgrade. Now, if you'll excuse me, I must apply for another line of credit!

 

[scottder]

Quote:

Originally Posted by mech_e Tracks encoded at this have subliminal messages that your cans, amp, and source are insufficient and you must upgrade. Now, if you'll excuse me, I must apply for another line of credit!

No that would be -q head-fi

 

[redshifter]

i was using videolan for playback. i'll try the q setting and the recommended ogg version tonight. thanks for the input.