This is a speech analysis, modification and synthesis system
#Usage ##exstraightsource Source information extraction for STRAIGHT [f0raw,ap,analysisParams]=exstraightsource(x,fs,optionalParams) Input parameters x : input signal. if it is multi channel, only the first channel is used fs : sampling frequency (Hz) optionalParams : Optional parameters for analysis Output parameters f0raw : fundamental frequency (Hz) ap : amount of aperiodic component in the time frequency representation : represented in dB analysisParams : Analysis parameters actually used
Usage: Case 1: The simplest method [f0raw,ap]=exstraightsource(x,fs); Case 2: You can get to know what parameters were used. [f0raw,ap,analysisParams]=exstraightsource(x,fs); CAse 3: You can have full control of STRAIGHT synthesis. Please use case 2 to find desired parameters to modify. [f0raw,ap,analysisParams]=exstraightsource(x,fs,optionalParams);
##exstraightspec Spectral information extraction for STRAIGHT [n3sgram,nalysisParamsSp]=exstraightspec(x,f0raw,fs,optionalParamsSP) Input parameters x : input signal. only the first channel is analyzed f0raw : fundamental frequency (Hz) in 1 ms temporal resolution : set 0 for aperiodic part fs : sampling frequency (Hz) optionalParamsSP : spectrum analysis parameters Output parameters n3sgram : Smoothed time frequency representation (spectrogram) analysisParamsSp : Actually used parameters
Usage: Case 1: The simplest method n3sgram = exstraightspec(x,f0raw,fs); Case 2: You can get to know what parameters were used. [n3sgram,analysisParamsSp]=exstraightspec(x,f0raw,fs); CAse 3: You can have full control of STRAIGHT synthesis. Please use case 2 to find desired parameters to modify. [n3sgram,analysisParamsSp]=exstraightspec(x,f0raw,fs,optionalParamsSP);
##exstraightsynth Synthesis using STRAIGHT parameters [sy,prmS] = exstraightsynth(f0raw,n3sgram,ap,fs,optionalParamsS) Input parameters f0raw : fundamental frequency (Hz) n3sgram : STRAIGHT spectrogram (in absolute value) ap : aperiodic component (dB re. to total power) fs : sampling frequency (Hz) optionalParamsS : optional synthesis parameters Output parameters sy : synthesized speech prmS : Actually used synthesis parameters
Usage: Case 1: The simplest method sy = exstraightsynth(f0raw,n3sgram,ap,fs); Case 2: You can get to know what parameters were used. [sy,prmS] = exstraightsynth(f0raw,n3sgram,ap,fs); CAse 3: You can have full control of STRAIGHT synthesis. Please use case 2 to find desired parameters to modify. [sy,prmS] = exstraightsynth(f0raw,n3sgram,ap,fs,optionalParamsS);
#Reference http://www.wakayama-u.ac.jp/~kawahara/STRAIGHTadv/index_e.html