Questions
1
Overlap add and Overlap save are the two methods for linear FIR filtering a long sequence on a block-by-block basis using DFT.
Answer:True
2
In Overlap save method of long sequence filtering, what is the length of the input sequence block?
Answer:L+M-1
3
In Overlap save method of long sequence filtering, how many zeros are appended to the impulse response of the FIR filter?
Answer:L-1
4
The first M-1 values of the output sequence in every step of Overlap save method of filtering of long sequence are discarded.
Answer:True
6
Which of the following is true in case of Overlap add method?
Answer:M-1 zeros are appended at last of each data block
7
In which of the following methods, the input sequence is considered as shown in the below diagram?
Answer:Overlap save method
8
In which of the following methods, the output sequence is considered as shown in the below diagram?
Answer:Overlap add method
9
What is the value of x(n)*h(n), 0≤n≤11 for the sequences x(n)={1,2,0,-3,4,2,-1,1,-2,3,2,1,-3} and h(n)={1,1,1} if we perform using overlap add fast convolution technique?
Answer:{1,3,3,-1,1,3,5,2,-2,2,3,6}
10
What is the value of x(n)*h(n), 0≤n≤11 for the sequences x(n)={1,2,0,-3,4,2,-1,1,-2,3,2,1,-3} and h(n)={1,1,1} if we perform using overlap save fast convolution technique?
Answer:{1,3,3,-1,1,3,5,2,-2,2,3,6}
