Is There An Echo In Here? Signal Analysis for Ops

Transcript

1. Signal Analysis for Ops Is There An Echo In Here? Noah Kantrowitz
2. MATH AHEAD
3. This is a Metric
4. Value @ Time
6. metric.wav
9. Frequency Domain
10. Frequency 0hz 20Hz
11. Value +0dB +50dB
12. Fourier Transform
13. ˆ f ( ⇠ ) = Z 1 1 f ( x ) e 2 ⇡ix⇠ dx
18. 1Hz 4 Hz/2 10 Hz/4 16 Hz/4 2 Hz/10
20. ˆ f ( ⇠ ) = Z 1 1 f ( x ) e 2 ⇡ix⇠ dx
21. DFT DTFT
22. Xk = N 1 X n=0 xne 2⇡i N nk
23. FFT
24. IFT
25. Low-pass
30. High-pass Band-pass
31. Windowing
41. NumPy
42. FFTW
43. go-dsp
44. Ruby
45. Go forth and find the signal
46. Thank You
47. Bonus Round
48. DCT
49. Wavelets
50. Noise Gate
52. Hysteresis
53. Control Theory
54. PID Control
55. Thank You