RESULTS window dur frame dur 710_b_8k 710_s_8k 711_g_8k 712_f_8k 10 5 17.7018 27.9657 11.4938 12.8731 10 10 17.8770 29.7497 13.0742 12.7802 20 5 19.4729 28.8649 14.2272 13.5264 20 10 19.5699 28.9321 14.3108 13.9204 20 20 19.4589 29.1698 12.7643 12.3057 30 5 19.5836 28.9542 14.1009 14.2936 30 10 19.6648 28.9873 15.2634 14.4809 30 20 19.6648 29.3752 12.8844 12.3828 60 5 18.9702 29.2737 12.9589 14.3296 60 10 19.9123 29.3852 13.9109 15.2915 60 20 21.8752 29.6379 15.4835 15.6468 60 40 21.3171 30.4454 15.6751 15.6480 Table 1: SNR of the four raw data files for different window and frame durations Figure 1. Scatter Plot of the SNR Values and Window Duration Figure 2.Scatter Plot of the SNR Values and the Frame Duration noise thr. signal thr. 710_b_8k (60,20) 710_s_8k (60,40) 711_g_8k (60,40) 712_f_8k (60,40) 10 80 24.1050 30.4454 17.3469 18.4945 15 80 21.8752 30.4454 16.4345 16.7656 20 80 21.8752 30.4454 15.6751 15.6480 25 80 19.2999 21.9708 14.3206 14.6425 10 85 25.1587 31.3226 18.1917 19.4905 15 85 22.9314 31.3226 17.2826 17.7677 20 85 22.9314 31.3226 16.5264 16.6555 25 85 20.3610 22.8524 15.1794 15.6562 10 90 27.1545 34.1631 19.5314 21.3363 15 90 24.9304 34.1631 18.6263 19.6217 20 90 24.9304 34.1631 17.8742 18.5167 25 90 22.3665 25.7021 16.5363 17.5257 10 95 29.4481 37.9099 21.5194 22.5418 15 95 27.2263 37.9099 20.6184 20.8309 20 95 27.2263 37.9099 19.8704 19.7292 25 95 24.6670 29.4547 18.5417 18.7420 Table 2: SNR of the four raw data files for different signal and noise thresholds Figure 3. Scatter Plot of the SNR Values and Noise Threshold Figure 4. Scatter Plot of the SNR Values and Signal Threshold * All code for this assignment was written in Matlab homework solutions for: Homework #4: SNR submitted to: Dr. Joseph Picone ECE_8993 Fundamentals of Speech Recognition September 24, 1998 submitted by: Janna Shaffer Department of Electrical and Computer Engineering Mississippi State University Box 9571, 216 Simrall, Hardy Rd. Mississippi State, Mississippi 39762 Email: janna@cs.msstate.edu