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24 lines
1.0 KiB
24 lines
1.0 KiB
6 years ago
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function SMR = psycho(frameT, frameType, frameTprev1, frameTprev2)
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%Implementation of Psychoacoustic Model
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% Usage SMR = psycho(frameT, frameType, frameTprev1, frameTprev2), where:
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% Inputs
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% - frameT is a frame in the time domain, containing only one of the
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% audio channels stored in a vector of length 2048
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% - frameType is the type of the current frame in string
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% representation, can be one of "OLS" (ONLY_LONG_SEQUENCE), "LSS"
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% (LONG_START_SEQUENCE), "ESH" (EIGHT_SHORT_SEQUENCE), "LPS"
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% (LONG_STOP_SEQUENCE)
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% - frameTprev1 is the previous frame in the time domain, containing
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% only one of the audio channels stored in a vector of length 2048
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% - frameTprev2 is the frame before frameTprev1 in the time domain,
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% containing only one of the audio channels stored in a vector of
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% length 2048
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%
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% Output
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% - SMR is the signal to mask ratio array of dimensions 42X8 for
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% EIGHT_SHORT_SEQUENCE frames and 69X1 otherwise
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end
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