transposer

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Soundtouch audio processing database source code analysis and algorithm extraction (2)

called the default destructor. Because the base class kerberosamplepipe does not implement the constructor, by default, we can choose not to perform any initialization. Then, mongooprocessor simply puts the member variable into osamplepipe * output. a pointer to the base class is initialized to point to null. Fifoprocessor () { Output = NULL; } Now return to the soundtouch constructor. After constructing the first two classes, he can finally call his own default constructor. Soundtouch: soundto

SoundTouch audio processing database source code analysis and algorithm extraction (2)

the base class is initialized to point to NULL. FIFOProcessor () { Output = NULL; } Now return to the SoundTouch constructor. After constructing the first two classes, he can finally call his own default constructor. SoundTouch: SoundTouch () { // Initialize rate transposer and tempo changer instances PRateTransposer = RateTransposer: newInstance (); PTDStretch = TDStretch: newInstance (); SetOutPipe (pTDStretch ); Rate = tempo = 0; VirtualPitch = Vi

Soundtouch audio processing database source code analysis and algorithm extraction (4)

A supplement to soundtouch construction process initialization.In the soundtouch constructor, we noticed that there is such a function calceffectiverateandtempo ()Soundtouch: soundtouch (){// Initialize rate transposer and tempo changer instancesPratetransposer = ratetransposer: newinstance ();Ptdstretch = tdstretch: newinstance ();Setoutpipe (ptdstretch );Rate = tempo = 0;Virtualpitch =Virtualrate =Virtualtempo = 1.0;Calceffectiverateandtempo ();Chan

Soundtouch audio processing database source code analysis and algorithm extraction (3)

(const float * mixingpos, const float * compare) function, I 'd like to make a specific analysis later.Return to our soundtouch constructor soundtouch: soundtouch ();Soundtouch: soundtouch (){// Initialize rate transposer and tempo changer instancesPratetransposer = ratetransposer: newinstance ();Ptdstretch = tdstretch: newinstance ();Setoutpipe (ptdstretch );Rate = tempo = 0;Virtualpitch =Virtualrate =Virtualtempo = 1.0;Calceffectiverateandtempo ();

Soundtouch audio processing database source code analysis and algorithm extraction (1)

will use. We can see that two other class pointers are defined in private. Ratetransposer *, tdstretch *;Ratetransposer is derived from kerberoprocessor, and kerberoprocessor is directly from the base class paiosamplepipe Generate, tdstretch and ratetransposer are similar. It can be seen from the names of two classes: lengthen? Transmission Speed? It is hard to imagine that the processing of sound signals in this database may be "stretching" and "variable speed ". Is it a legend Do not change t

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