Audio Signal Processing Calculations PDF
Document Details
Uploaded by UnselfishAltoSaxophone
Tags
Summary
This document shows handwritten calculations for audio signal processing, focusing on calculating the number of samples in a speech signal and a frame given a specified sampling rate and frame duration. It also includes calculations for different overlap scenarios in the audio.
Full Transcript
## Image Description The image shows handwritten calculations for audio signal processing. It describes how to calculate number of samples in a speech signal and in a frame given a certain sampling rate. ## Sampling Rate and Frame Calculation **Sampling Rate:** 8 kHz **Speech Duration:** 0.16 sec...
## Image Description The image shows handwritten calculations for audio signal processing. It describes how to calculate number of samples in a speech signal and in a frame given a certain sampling rate. ## Sampling Rate and Frame Calculation **Sampling Rate:** 8 kHz **Speech Duration:** 0.16 sec **Frame Duration:** 15 msec **Calculations:** - 8 kHz = 8000 samples/sec - **Number of samples in speech:** 8000 samples/sec * 0.16 sec = 1280 samples - **Number of samples in frame:** 8000 samples/sec * 15 msec = 120 samples ## Frame Start and End Points | Frame | Start | End | Without Overlap | With Overlap 25% | |---|---|---|---|---| | 1 | 1 | 120 | 120 | 120 | | 2 | 121 | 240 | 240 | 210 | | 3 | 241 | 360 | 360 | 300 | | 4 | 361 | 480 | 480 | 390 | | 5 | 481 | 600 | 600 | ... | | 6 | 601 | 720 | 720 | ... | | 7 | 721 | 840 | 840 | ... | | 8 | 841 | 960 | 960 | ... | | 9 | 961 | 1080 | 1080 | ... | | 10 | 1081 | 1200 | 1200 | 1260 | | 11 | 1201 | 1280 | 1280 | ... | **Overlap Calculations:** - **25% overlap:** 25/100 * 120 = 30 samples - **31% overlap:** 31/100 * 120 = 37.2 samples ≈ 37 samples
