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File:Sine wave 440.ogg
来自维基百科,自由的百科全书
Found in articles
File:Sine wave 440.ogg
5 seconds of
sine
wave
at
440
Hz. Generated by Audacity. Normalized to -3 dB. No dithering. Saved with "0.8" quality VBR. Possibly not mathematically perfect
File:440 Sine wave.ogg
Description440
Sine
wave
.
ogg
English:
Sine
wave
440
Hertz A note Date 5 October 2012, 23:01:05 Source Own work Author Ubershmekel
File:440sinus.ogg
Description440sinus.
ogg
Deutsch: Sinusschwingung
440
Hz English:
440
Hz
sine
wave
Source Own work Author Joachim Mohr
File:Waveform.ogg
DescriptionWaveform.
ogg
a sound sample of a
sine
, square, and sawtooth
wave
@
440
hz Date 31 August 2008, 21:11 (UTC) Source Own work Author Wyatt915
File:FR--dial tone.ogg
DescriptionFR--dial tone.
ogg
Traditional dial tone in France (
440
Hz
sine
wave
based) Source Own work Author Jjackoti