2. Read WAV file in Matlab and replace signal from time t=10sec to the end of the file with the sine wave f=2,500 Hz and amplitude equal to 10% of the maximum possible amplitude of the signal, and initial phase of /6. Save modified WAV file. When you play the file you will be able to hear your original recording for 10 seconds followed by annoying sine wave @2,500 Hz for the rest of the file.

Help please!

2. Read WAV file in Matlab and replace signal from time t=10sec to the end of the file with the sine wave f=2,500 Hz and amplitude equal to 10% of the maximum possible amplitude of the signal, and initial phase of 1/6. Save modified WAV file. When you play the file you will be able to hear your original recording for 10 seconds followed by annoying sine wave @2,500 Hz for the rest of the file. 2. Read WAV file in Matlab and replace signal from time t=10sec to the end of the file with the sine wave f=2,500 Hz and amplitude equal to 10% of the maximum possible amplitude of the signal, and initial phase of 1/6. Save modified WAV file. When you play the file you will be able to hear your original recording for 10 seconds followed by annoying sine wave @2,500 Hz for the rest of the file