9. The apparatus of claim 8 , wherein, with K and i being maintained, the second speech is generated by extracting the respective m*K+i-th frames of the first speech, as m is incremented between 0 and K−1.
8. The apparatus of claim 7 , wherein, for the extraction of the select frames, the processor is further configured to extract the select frames according to m*K+i and from an N number of all of the frames of the first speech, wherein i is any integer according to 1≤i≤K, and K is any integer according to 2≤K≤N, while m is made to be one or more integers according to i≤m*K+i≤N, to extract respective m*K+i-th frames of the first speech.