Recent content by wislagrew

  1. W

    Sound (harmonic) waves questions

    Thanks for you reply, In the end of question's paper it says 343m/sec, so I decided to use it. I'm just confused with the negative result.
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    Sound (harmonic) waves questions

    Hello, I have two question regrading sound waves. The first one: The pressure P(x;t) at a point x at time t in a medium through which a harmonic wave is travelling can be described by: P(x,t) = Asin(wt -kx) If the equation describes a pressure wave traveling in air, with amplitude 2 Pa and...
  3. W

    Sound(Determine period, frequency from the plot)

    Yeah, thanks a lot.
  4. W

    Sound(Determine period, frequency from the plot)

    Thanks for the great reply, it really helped a lot. Just to check, I got the period - 0.004375s
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    Sound(Determine period, frequency from the plot)

    Hey, so I have this question Figure 1 shows a short duration segment of a speech waveform that has been sampled at 16,000 samples per second. The x-axis shows sample number, while the y-axis shows amplitude. (i) From the plot, is the speech signal voiced or unvoiced? State your rea- soning...