SPECTWIN creates hybrid sounds by combining the formant envelopes and/or total spectral envelopes of two sources. The formant envelope traces out the envelope formed by the peaks in the spectrum. The total spectral envelope traces out the envelope formed by every channel in the spectrum. MODES 1. Formant envelopes of both files. 2. Formant envelope of 1st file with Spectral envelope of 2nd file. 3. Spectral envelope of 1st file with Formant envelope of 2nd file. 4. Spectral envelopes of both files. PARAMETERS frqint: Dominance of spectral freqs of 2nd file. Range: 0-1; default 1.0. envint: Dominance of spectral envelope of 2nd file. Range: 0-1; default 1.0. dupl: Duplicate original Infile 1 DUPL times at higher pitches. Range: 0-8; default 0 (e.g. 1 imposes 1 transposed copy) step: upwards transposition at each duplication. Range: 0-48 semitones atten: Gain reduction from each transposition to next. Range: 0-1 NOTES Freqint and envint specify the dominance of the spectral frequencies and spectral envelope, respectively, of Infile2. Setting both to 1 (the defaults) effectively just reproduces Infile 2 in all modes. Various hybrids can be formed by reducing the effect of one of these. Roughly speaking, if envint is at maximum and freqint is at minimum, the result is a transformation of Infile 1 (heavily influenced by Infile 2); if the reverse (freqint at maximum and envint at minimum), the effect is a transformation of Infile 2. The other three parameters are linked. You can optionally duplicate Infile 1 dupl times at higher pitches; if chosen, the interval is set as step semitones, and atten sets how much each duplicate should be attenuated. Running this feature on its own (i.e. freqint + envint=0 and with Infile2 = Infile1) is almost a spectral equivalent of STACK. Mode 3 seems the "cleanest". If one source file is longer than the other, the outfile length is that of the shorter file.
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