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The Doppler effect.
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∙ 12y ago
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What is answers best describes how sound is created?
A sound wave is essentially fast changing sound pressure. Longitudinal sound waves need a medium to travel through in order to exist e.g mostly air, water, metal... A sound wave is the pattern of disturbance caused by the movement of sound ... A sound needs a moving sound source of a frequency between 20 Hz and 20 kHz.
Is a phoneme the smallest sound in spoken language?
Yes, a phoneme is the smallest unit of sound that can distinguish meaning in a language. Changing a phoneme can result in a different word or meaning.
How does changing the position of a moving object change it's sound?
The nearer the source of sound, the louder is the sound. If the source of sound is far away from the listener, the intensity of sound decreases, by the square of the distance. ++++ Also, the Doppler Effect. The sound of something approaching at speed, such as the horn on a fast-moving railway locomotive, or a police-car siren, is raised in pitch above its true frequency, then drops abruptly to below true as it passes you. This is due to the sound source moving but the sound speed in air remaining constant.
Chevy Colorado 4x4 gear changing is it suppouse to be kinda loud?
It will sound like a gear moving, there might be a clunking sound.It is perfectly normal.
What could a squealing sound in a BMW 750 be if it happens when the car is moving and even when engine in not running?
Cooling fan bearing?
A knock or clonking sound but stops when you press on the brakes?
A knocking sound while your car is moving is probably coming from the engine. A certified mechanic will be able to perform diagnostic testing.
What is the sound made by an engine called?
There is no specific word for a car engine's sound.Someone might say their car, when the engine was operating smoothly, purred or was purring.Or, when the driver accelerates without moving: He revvedhis engine.When the engine makes abnormal sounds, the type of sound is described: the engine was ticking, knocking, sputtering, straining, etc.
What would cause a knocking sound when not stepping on the gas?
can you elaborate? engine noise? stationary/moving? ticking, tapping or a definite knocking?
How computer output sound?
Electric current from the sound card is applied to an electromagnet changing magnetic field pushes a magnet back and forth,which is attached to the speaker cone.The moving speaker cone creates changes in the air pressure which your brain interprets as sound.
When moving you are changing what?
Local gravity. Room sound absorbing qualities. Local air movement by making a bow shock that disturbs the air. Cause vortices's to be generated. Changing the place where I was by being in the place I am at the moment. The view of the world.
Is choo-choo an onomatopoeia?
Yes, "choo-choo" is an onomatopoeia because it imitates the sound of a train whistle or a steam engine. It represents the repetitive sound of a train moving along the tracks.
Do microphones use electromagnets?
The microphone works by producing a small induced voltage in a coil from the effect of sound waves hitting a diaphragm. It is very similar to a loudspeaker in reverse with a diaphragm instead of a paper cone. This type of microphone is called a moving coil microphone. The sound waves strike the diaphragm and move it backwards and forwards at the same frequency as the sound (like the way the ear drum is moved inside the ear). The moving diaphragm moves the coil backwards and forwards which induces a changing current at the same frequency as the sound. This changing current (called the signal) is sent to an amplifier which makes the changing current big enough to be used for recording or to drive loudspeakers. The loudspeaker reconverts the changing current back into the original sound. A microphone converts the sound energy into electrical energy.
