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Topic: custom killer sample for ogg (Read 3699 times) previous topic - next topic
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custom killer sample for ogg

Some of you may have noticed
http://www.hydrogenaudio.org/forums/index....showtopic=32579

A serious problem occures when a block wave of +/- 1 bit (LSB) has been added to a standard LFE channel (16b 48khz) and the resulting 5.1 ch wav is encoded in ogg.
So a wave like this is added to an LFE channel:
 
Code: [Select]
___     _____       ____     _____      +1 
    |   |     |     |    |   |     |     
    |___|     |_____|    |___|     |___  -1
                                          


When this square is "removed" by adding random triangular dither the ogg has a significant higher quality.
Can anyone explain how an added signal of -90 dB can totaly ruin the ogg?

custom killer sample for ogg

Reply #1 –
.... wrong button, i wanted to edit