Precedence Effect: Difference between revisions
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== Precedence Effect == | |||
The psychoacoustic phenomenon whereby an acoustic signal arriving first at the ears suppresses the ability to hear any other signals, including ECHOes and REVERBERATION, that arrive up to about 40 ms after the initial signal, provided that the delayed signals are not significantly louder than the initial signal. A signal arriving after a delay of 40-50 ms is heard as an echo, provided it is not MASKed. Also called echo suppression and the Haas effect. | The psychoacoustic phenomenon whereby an acoustic signal arriving first at the ears suppresses the ability to hear any other signals, including ECHOes and REVERBERATION, that arrive up to about 40 ms after the initial signal, provided that the delayed signals are not significantly louder than the initial signal. A signal arriving after a delay of 40-50 ms is heard as an echo, provided it is not MASKed. Also called echo suppression and the Haas effect. | ||
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[http://www.sfu.ca/sonic-studio/handbook/Precedence_Effect.html Precedence Effect] SFU.ca | [http://www.sfu.ca/sonic-studio/handbook/Precedence_Effect.html Precedence Effect] SFU.ca | ||
== Haas Effect == | |||
The Haas effect is a psychoacoustic effect related to a group of auditory phenomena known as the Precedence Effect or law of the first wave front. These effects, in conjunction with sensory reaction(s) to other physical differences (such as phase differences) between perceived sounds, are responsible for the ability of listeners with two ears to accurately localize sounds coming from around them. | The Haas effect is a psychoacoustic effect related to a group of auditory phenomena known as the Precedence Effect or law of the first wave front. These effects, in conjunction with sensory reaction(s) to other physical differences (such as phase differences) between perceived sounds, are responsible for the ability of listeners with two ears to accurately localize sounds coming from around them. | ||