Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Is There An Echo In Here? Signal Analysis for Ops

Avatar for Noah Kantrowitz Noah Kantrowitz
May 06, 2014
Programming
0
100

Is There An Echo In Here? Signal Analysis for Ops

Avatar for Noah Kantrowitz

Noah Kantrowitz

May 06, 2014
Tweet

More Decks by Noah Kantrowitz

See All by Noah Kantrowitz
What Python Can Learn From Other Languages
Avatar for Noah Kantrowitz coderanger
0
65
What Python Can Learn From Other Languages (with notes)
Avatar for Noah Kantrowitz coderanger
0
170
Swiss Army Django: Small Footprint ETL (with notes) - DjangoCon US
Avatar for Noah Kantrowitz coderanger
0
240
Swiss Army Django: Small Footprint ETL - DjangoCon US
Avatar for Noah Kantrowitz coderanger
0
64
How to look at space: PyCon AU
Avatar for Noah Kantrowitz coderanger
0
110
Swiss Army Django: Small Footprint ETL
Avatar for Noah Kantrowitz coderanger
0
94
Swiss Army Django: Small Footprint ETL (with notes)
Avatar for Noah Kantrowitz coderanger
0
85
Minimum Viable Kubernetes
Avatar for Noah Kantrowitz coderanger
0
41
Minimum Viable Kubernetes (with notes)
Avatar for Noah Kantrowitz coderanger
0
460

Other Decks in Programming

See All in Programming
オープンセミナー2025@広島 「君はどこで動かすか？」 アンケート結果
Avatar for Satoshi Kaneyasu satoshi256kbyte
0
240
Jakarta EE Core Profile and Helidon - Speed, Simplicity, and AI Integration
Avatar for ivargrimstad ivargrimstad
0
330
Oracle Database Technology Night 92 Database Connection control FAN-AC
Avatar for oracle4engineer oracle4engineer
PRO
1
400
AI時代のUIはどこへ行く？
Avatar for Yusuke Wada yusukebe
13
7.8k
Kiroで始めるAI-DLC
Avatar for kaonash kaonash
2
540
もうちょっといいRubyプロファイラを作りたい (2025)
Avatar for osyoyu osyoyu
0
250
tool ディレクティブを導入してみた感想
Avatar for Sugar Sato sgash708
1
160
TanStack DB ~状態管理の新しい考え方~
Avatar for じょうげん bmthd
2
470
250830 IaCの選定~AWS SAMのLambdaをECSに乗り換えたときの備忘録~
Avatar for Takumi Abe east_takumi
0
370
Microsoft Orleans, Daprのアクターモデルを使い効率的に開発、デプロイを行うためのSekibanの試行錯誤 / Sekiban: Exploring Efficient Development and Deployment with Microsoft Orleans and Dapr Actor Models
Avatar for Tomohisa Takaoka tomohisa
0
230
The Past, Present, and Future of Enterprise Java
Avatar for ivargrimstad ivargrimstad
0
330
Langfuseと歩む生成AI活用推進
Avatar for matsukada licux
3
330

Featured

See All Featured
[RailsConf 2023] Rails as a piece of cake
Avatar for Vladimir Dementyev palkan
57
5.8k
jQuery: Nuts, Bolts and Bling
Avatar for Doug Neiner dougneiner
64
7.9k
Art, The Web, and Tiny UX
Avatar for Lynn Fisher lynnandtonic
302
21k
Site-Speed That Sticks
Avatar for Harry Roberts csswizardry
10
810
Being A Developer After 40
Avatar for Adrian Kosmaczewski akosma
90
590k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
Avatar for Morgane Peng morganepeng
131
19k
The Pragmatic Product Professional
Avatar for Laura Van Doore lauravandoore
36
6.8k
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
13k
Done Done
Avatar for chrislema chrislema
185
16k
Git: the NoSQL Database
Avatar for Brandon Keepers bkeepers
PRO
431
66k
No one is an island. Learnings from fostering a developers community.
Avatar for Antonio thoeni
21
3.4k
CSS Pre-Processors: Stylus, Less & Sass
Avatar for Bermon Painter bermonpainter
358
30k

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

  5. None

  6. metric.wav

  7. None
  8. None

  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
  14. None
  15. None
  16. None
  17. None

  18. 1Hz 4 Hz/2 10 Hz/4 16 Hz/4 2 Hz/10

  19. None

  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

  26. None
  27. None
  28. None
  29. None

  30. High-pass Band-pass

  31. Windowing

  32. None
  33. None
  34. None
  35. None
  36. None
  37. None
  38. None
  39. None
  40. None

  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

  51. None

  52. Hysteresis

  53. Control Theory

  54. PID Control

  55. Thank You