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- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.04%3A_Tensioned_String/4.4.03%3A_DiagramFigure 1
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.15%3A_Room_Modes_Demonstration/4.15.03%3A_ProcedureMark these locations on the floor with a minus sign made from the same color tape as used in the prior step. Be aware that the maximum SPLs found may change from frequency to frequency due to the capa...Mark these locations on the floor with a minus sign made from the same color tape as used in the prior step. Be aware that the maximum SPLs found may change from frequency to frequency due to the capabilities of the loudspeaker/subwoofer. What is important here is the locations of the peaks and valleys along with the difference between their SPLs. Compare the locations of where the peaks and valleys occur as well as the decibel differences between them.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.06%3A_Human_Voice-_Range_and_Timbre/4.6.05%3A_QuestionsDescribe the overall differences in character between the three vowel sounds. Based on the frequency measurements, estimate the main frequency range of human speech. How does this compare with the fre...Describe the overall differences in character between the three vowel sounds. Based on the frequency measurements, estimate the main frequency range of human speech. How does this compare with the frequency range of whistling? Of the sounds tested in the Tables, which appears the most like a pure sine wave? How much pitch range variation is there between the group members? What do you suppose might cause this variation?
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/09%3A_Loudspeaker_Impedance_Magnitude/9.01%3A_Section_1-Loudspeakers are typically specified with nominal impedance, often 8 ohms or 4 ohms, although other values are possible. The actual impedance of a typical loudspeaker can vary widely from this rating....Loudspeakers are typically specified with nominal impedance, often 8 ohms or 4 ohms, although other values are possible. The actual impedance of a typical loudspeaker can vary widely from this rating. In the exercise we shall examine the impedance of two different permanent magnet-voice coil type transducers with respect to frequency. Devices of this type normally exhibit a resonant peak in the bass end and a gradual rise in magnitude as frequency increases.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.05%3A_Resonant_Pipes
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/00%3A_Front_Matter/AcknowledgmentsFor their continued support, my family and friends. For their input on draft versions, my colleagues and students. For continued sanity enhancement, musicians and composers to numerous to mention. Fin...For their continued support, my family and friends. For their input on draft versions, my colleagues and students. For continued sanity enhancement, musicians and composers to numerous to mention. Finally, a serious thank you, thank you, thank you to all of the people who have created useful software and other OER tools without which this project would have been impossible. This text was created using free and open software applications including Open Office.
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/07%3A_Loudness/7.04%3A_Section_4-On the front panel of the switchbox, plug the headphones into the headphone (mini-jack) output and connect the output BNC connector to the voltmeter. On the back panel of the switchbox connect the out...On the front panel of the switchbox, plug the headphones into the headphone (mini-jack) output and connect the output BNC connector to the voltmeter. On the back panel of the switchbox connect the output of the reference generator to input one of the switchbox with a BNC to BNC cable (the right side of the rear panel when viewed from the front). While comparing the reference to the second tone, adjust the amplitude (voltage) of the second tone so that the two tones sound as loud as each other.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.06%3A_Human_Voice-_Range_and_Timbre/4.6.01%3A_IntroductionHealthy young humans can hear sounds in the range of 20 Hz to 20 kHz although humans generally cannot vocalize across this entire range. The object of this exercise is to become familiar with the rang...Healthy young humans can hear sounds in the range of 20 Hz to 20 kHz although humans generally cannot vocalize across this entire range. The object of this exercise is to become familiar with the range frequencies produced by the human voice as well as the effect of additional harmonics or overtones. It is these overtones, collectively referred to as the timbre, that make dissimilar sounds at the same pitch sound different as well as appear different on an oscilloscope.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_-_PHYS_110/04%3A_Book-_Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/4.04%3A_Tensioned_String/4.4.02%3A_Equipment1 Meter stick 3 Lengths of varying gauge steel piano wire, approximately 1.2 meters each, or guitar/bass strings 1 Metric hooked mass set 1 Tensioned string apparatus 1 Magnetic pickup 1 Oscilloscope ...1 Meter stick 3 Lengths of varying gauge steel piano wire, approximately 1.2 meters each, or guitar/bass strings 1 Metric hooked mass set 1 Tensioned string apparatus 1 Magnetic pickup 1 Oscilloscope 1 Microphone pre-amp
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/15%3A_Room_Modes_Demonstration/15.01%3A_Section_1-Room resonance modes can produce wide variations in bass response depending on the listener's position. Peak-to-valley variation can exceed 10 dB which is clearly audible to even casual listeners. Gen...Room resonance modes can produce wide variations in bass response depending on the listener's position. Peak-to-valley variation can exceed 10 dB which is clearly audible to even casual listeners. Generally, maximums will occur along wall, floor and ceiling boundaries, especially in the corners where these boundaries meet. The precise locations of peaks and valleys will depend on the room size, shape and construction; as well as the frequency being tested.
- https://phys.libretexts.org/Bookshelves/Waves_and_Acoustics/Laboratory_Manual_-_The_Science_of_Sound_(Fiore)/10%3A_Microphone_Patterns/10.04%3A_Section_4-Table 1 Table 2 Table 3 - Shure SM 58 (typical) Frequency On Axis 45 degrees 90 degrees 135 degrees 180 degrees 125 Hz 500 Hz -2 dB -20 dB -25 dB 2 kHz -6 dB -19 dB 8 kHz 0 dB -3 dB -15 dB -10 dB
