Masking: Difference between revisions
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'''masking''' is based on masking properties of the human ear. In contrast: When you look at the sun and if a bird passes ahead, you do not see it because of the too predominant light of the sun. In audio, it is similar. During strong sounds, you do not hear the weakest sounds. Take as an example a piece of organ: When the organist does not play, you hear the breath in the piping, and when he plays, you no longer hear it because it is masked. Different types of psychoacoustic masking exist and are exploited in most coding systems. | '''masking''' is based on masking properties of the human ear. In contrast: When you look at the sun and if a bird passes ahead, you do not see it because of the too predominant light of the sun. In audio, it is similar. During strong sounds, you do not hear the weakest sounds. Take as an example a piece of organ: When the organist does not play, you hear the breath in the piping, and when he plays, you no longer hear it because it is masked. Different types of psychoacoustic masking exist and are exploited in most coding systems. | ||
==Masking | ==Masking properties== | ||
* [[TMN]] ''tone masking noise'' | * [[TMN]] ''tone masking noise'' | ||
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==Temporal masking== | ==Temporal masking== | ||
==Additional reading== | |||
* [http://www.hsu-hh.de/ant/index.php?brick_id=WGuDNLyFCEaTWamW&action=setlanguage&language=en# Masking effects] this applet demonstrates the effects of masking in perceptual coding. | |||
Revision as of 16:11, 29 July 2006
masking is based on masking properties of the human ear. In contrast: When you look at the sun and if a bird passes ahead, you do not see it because of the too predominant light of the sun. In audio, it is similar. During strong sounds, you do not hear the weakest sounds. Take as an example a piece of organ: When the organist does not play, you hear the breath in the piping, and when he plays, you no longer hear it because it is masked. Different types of psychoacoustic masking exist and are exploited in most coding systems.
Masking properties
Simultaneous masking
Temporal masking
Additional reading
- Masking effects this applet demonstrates the effects of masking in perceptual coding.