Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre...
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Why does a violin sound different from a horn?
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Transcript of Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre...
![Page 1: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/1.jpg)
Why does a violin sound different from a horn?
![Page 2: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/2.jpg)
Several kinds of audible information
Pitch
Timbre
Attack
Decay
Vibrato
![Page 3: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/3.jpg)
Thus, we need to quantify sound
Thus, we need to measure sound
We need to systematically compare sounds…
![Page 4: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/4.jpg)
The Waveform• Plot motion of air (pressure vs. time)
time (ms)
pres
sure
• Microphone converts pressure to voltage
![Page 5: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/5.jpg)
Compare Waveforms
period
T = 2.2 ms
T = 7 ms f = 1/T = 140 Hz
f = 1/T = 460 Hz
![Page 6: Why does a violin sound different from a horn? Several kinds of audible information Pitch Timbre Attack Decay Vibrato.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f0d5503460f94c20869/html5/thumbnails/6.jpg)
pure tone sine wave
• Single period implies a single, constant frequency• Described by only two numbers: f, A
ampl
itud
e
period
How can we describe more complicated sounds?
simplest sound simplest waveform