2011年5月4日 星期三

Soundcard Scope

Soundcard Scope 是 Christian Zeitnitz 用 LabView 開發而成的一套 PC-Based 音效卡示波器,可以在底下的網址取得:

http://www.zeitnitz.de/Christian/scope_en

特色:

  • Trigger modes: off, automatic, normal and single shot
  • Triggerlevel can be set with the mouse
  • The signals of the two channels can be added, subtracted and multiplied
  • x-y mode
  • Frequency analysis (Fourier spectrum)
  • Waterfall diagram (frequency spectrum as function of time)
  • Frequency filter: low-, high- and band-pass
  • Cursors to measure amplitude, time and frequency in the main window
  • Audio Recorder to save data to a wave file
  • For multi soundcard system, the used card can be selected in the settings tab

底下這張圖是利用 Soundcard 量測紅外線訊號得到的波形,真酷!

image

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