A crude approximation at voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. (See Figure 17.30.) (a) What is the fundamental frequency if the tube is 0.240-m long, by taking air temperature to be 37.0°C? (b) What would this frequency become it the person replaced the air with helium? Assume the same temperature dependence for helium as for air. Figure 17.30 The throat and mouth form an air column closed at one end that resonates in response to vibrations in the voice box. The spectrum of overtones and their intensities vary with mouth shaping and tongue position to form different sounds. The voice box can be replaced with a mechanical vibrator, and understandable speech is still possible. Variations in basic shapes make different voices recognizable.
A crude approximation at voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. (See Figure 17.30.) (a) What is the fundamental frequency if the tube is 0.240-m long, by taking air temperature to be 37.0°C? (b) What would this frequency become it the person replaced the air with helium? Assume the same temperature dependence for helium as for air.
Figure 17.30 The throat and mouth form an air column closed at one end that resonates in response to vibrations in the voice box. The spectrum of overtones and their intensities vary with mouth shaping and tongue position to form different sounds. The voice box can be replaced with a mechanical vibrator, and understandable speech is still possible. Variations in basic shapes make different voices recognizable.
a crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end. what is the fundamental frequency if the tube is 0.280 m long, by taking air temperature to be 37.0 C?
what would this frequency become if the person’s breathing passage were filled with hydrogen instead of air? assume the same temperature dependence for hydrogen as air.
A crude approximation of human voice production is to consider the breathing passages and mouth to be a resonating tube closed at one end.
Part A - What is the fundamental frequency, in hertz, of a voice if the tube is 0.18-m long, taking air temperature to be 37.0°C?
Part B - What would this frequency become, in hertz, if the person replaced the air with helium? Assume the same temperature dependence for the speed of sound in helium as for air, and that the speed of sound in Helium is 965 m/s at 0°C.
On a cold day where the temperature is 0°C (so the speed of sound is 313 m/s), you generate a sound wave with a frequency of 4,870 Hz. If you were able to take a snapshot of those sound waves passing through the air, what would the distance be in-between subsequent compressions of the air through which the sound propagates?
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