What is the frequency of sound waves in the audio complex? -General Knowledge

What is the frequency of sound waves in the audio complex? -General Knowledge
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Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Description : Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Last Answer : Ans:(b)

Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Description : Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Last Answer : (2) infrasonic Explanation: The term "infrasonic" applied to sound refers to sound waves below the frequencies of audible sound and nominally includes anything under 20 Hz.

What term describe an apparent change in frequency of sound waves of rapidly moving?

Description : What term describe an apparent change in frequency of sound waves of rapidly moving?

Last Answer : Doppler Shift. It occurs in electromagnetic radiation too,though is really only significant at extremely high speeds such asthe recession-rate of galaxies.

What depend on the frequency on the sound waves?

Description : What depend on the frequency on the sound waves?

Last Answer : Pitch

What depend on the frequency on the sound waves?

Description : What depend on the frequency on the sound waves?

Last Answer : Pitch

Ultrasonic waves are those sound waves having frequency

Description : Ultrasonic waves are those sound waves having frequency

Last Answer : More than 20 kilohertz

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Description : Radar transmits short pulses of high frequency called A. Infrared waves B. Radio waves C. Ultraviolet waves D. Sound waves

Last Answer : ANSWER: B

Consider the following statements: 1. A flute of smaller length produces waves of lower frequency. 2. Sound travels in rocks in the form of longitudinal elastic waves only. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

Description : Consider the following statements: 1. A flute of smaller length produces waves of lower frequency. 2. Sound travels in rocks in the form of longitudinal elastic waves only. Which of the statements given above is/are correct? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

Last Answer : Ans:(d)

What are audible sound waves? (1) Having frequency less than 20 Hz (2) Having frequency between 20 Hz to 20000 Hz (3) Having frequency more than 20000 Hz (4) None of above

Description : What are audible sound waves? (1) Having frequency less than 20 Hz (2) Having frequency between 20 Hz to 20000 Hz (3) Having frequency more than 20000 Hz (4) None of above

Last Answer : (2) Having frequency between 20 Hz to 20000 Hz

Ondometer is a - (1) Measuring instrument for distance covered by motor wheels (2) Measuring instrument for frequency of electromagnetic waves (3) Device for measuring sound intensity (4) Measuring instrument for electric power

Description : Ondometer is a - (1) Measuring instrument for distance covered by motor wheels (2) Measuring instrument for frequency of electromagnetic waves (3) Device for measuring sound intensity (4) Measuring instrument for electric power

Last Answer : (2) Measuring instrument for frequency of electromagnetic waves

As compared to sound waves the frequency of radio waves is A. lower B. higher C. equal D. may be higher or lower

Description : As compared to sound waves the frequency of radio waves is A. lower B. higher C. equal D. may be higher or lower

Last Answer : higher

A source produces sound waves under water. Waves travel through water and then into air. Which of the following statements about the frequency (f) and the wavelength () is correct and sound passes from water to air? (1) f remains unchanged but  decreases. (2) f remains unchanged but  increases. (3)  remains unchanged but f decreases. (4)  remains unchanged but f increases.

Description : A source produces sound waves under water. Waves travel through water and then into air. Which of the following statements about the frequency (f) and the wavelength () is correct and sound passes from ... increases. (3)  remains unchanged but f decreases. (4)  remains unchanged but f increases.

Last Answer : 3)  remains unchanged but f decreases.

If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Description : If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude

Last Answer : ANSWER: Z -- AMPLITUDE

What is the technique of detecting the position of objects by producing very high frequency sound waves and listening to the echos?

Description : What is the technique of detecting the position of objects by producing very high frequency sound waves and listening to the echos?

Last Answer : ANSWER: SONAR  

Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Description : Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%

Last Answer : D. 83%

What is the frequency of ultrasonic waves? -General Knowledge

Description : What is the frequency of ultrasonic waves? -General Knowledge

Last Answer : Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.

What is the frequency of ultrasonic waves? -General Knowledge

Description : What is the frequency of ultrasonic waves? -General Knowledge

Last Answer : Ultrasonic is the sound above human hearing range. Human can hear maximum up to a frequency of 20 KHz. Ultrasonic frequencies are above 20 KHz. Ultrasonic waves are used to measure level of liquids and solid objects in industries.

What is the frequency of ultrasonic waves? -General Knowledge

Description : What is the frequency of ultrasonic waves? -General Knowledge

Last Answer : Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.

What is the frequency of ultrasonic waves? -General Knowledge

Description : What is the frequency of ultrasonic waves? -General Knowledge

Last Answer : Ultrasonic wave is defined as “inaudible sound with high frequency for human” the frequency of which generally exceeds 20 kHz. These days, sound wave which is not intended to be heard is also called ultrasonic wave.

The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are – (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In analogue television, the sound portion of a broadcast is invariably modulated separately from the video. Most commonly, the audio and video are combined at ... visual antennas can be used. In almost all cases, standard wideband frequency modulation is used.

The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are : (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : (2) Frequency modulated Explanation: In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with ... , the sound portion of a broadcast is invariably modulated separately from the video.

What is meant by the term modulation index? A. The processor index. B. The ratio between the deviation of a frequency modulated signal and the modulating frequency. C. The FM signal-to-noise ratio. D. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency.

Description : What is meant by the term modulation index? A. The processor index. B. The ratio between the deviation of a frequency modulated signal and the modulating frequency. C. The FM signal-to-noise ratio. D. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency.

Last Answer : B. The ratio between the deviation of a frequency modulated signal and the modulating frequency.

What is meant by the term deviation ratio? A. The ratio of the audio modulating frequency to the center carrier frequency. B. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency. C. The ratio of the carrier center frequency to the audio modulating frequency. D. The ratio of the highest audio modulating frequency to the average audio modulating frequency.

Description : What is meant by the term deviation ratio? A. The ratio of the audio modulating frequency to the center carrier frequency. B. The ratio of the maximum carrier frequency deviation to the highest ... . D. The ratio of the highest audio modulating frequency to the average audio modulating frequency.

Last Answer : B. The ratio of the maximum carrier frequency deviation to the highest audio modulating frequency.

What is meant by the term deviation ratio? A. The ratio of the carrier center frequency to the audio modulating frequency B. The ratio of the highest audio modulating frequency to the average audio modulating frequency C. The ratio of the maximum carrier frequency deviation to the highest audio modulation frequency D. The ratio of the audio modulating frequency to the center carrier frequency

Description : What is meant by the term deviation ratio? A. The ratio of the carrier center frequency to the audio modulating frequency B. The ratio of the highest audio modulating frequency to the ... audio modulation frequency D. The ratio of the audio modulating frequency to the center carrier frequency

Last Answer : C. The ratio of the maximum carrier frequency deviation to the highest audio modulation frequency

An instrument for recording waveforms of audio frequency. A. Oscilloscope B. Phonoscope C. Radioscope D. Audioscope

Description : An instrument for recording waveforms of audio frequency. A. Oscilloscope B. Phonoscope C. Radioscope D. Audioscope

Last Answer : B. Phonoscope

______ used to measure speech volume A. Volume meter B. Audio frequency meter C. Volume unit meter D. Speech meter

Description : ______ used to measure speech volume A. Volume meter B. Audio frequency meter C. Volume unit meter D. Speech meter

Last Answer : C. Volume unit meter

The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the same bandwidth. A. Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Description : The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the ... . Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Last Answer : D. Residual noise level

What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Description : What is the difference between phase and frequency modulation? A. Is purely theoretical because they are the same in practice B. Lies in poorer audio response of phase modulation C. Lies in the different definitions of the modulation index D. Is too great to make two systems compatible

Last Answer : C. Lies in the different definitions of the modulation index

ECE Board Exam March 1996 According to the Nyquist theorem, the sampling rate that can be used in a PCM system is ________ the highest audio frequency. A. once B. eight times C. twice D. thrice

Description : ECE Board Exam March 1996 According to the Nyquist theorem, the sampling rate that can be used in a PCM system is ________ the highest audio frequency. A. once B. eight times C. twice D. thrice

Last Answer : C. twice

Mention any two audio frequency oscillators .

Description : Mention any two audio frequency oscillators .

Last Answer : i. RC phase shift oscillator ii. Wein bridge oscillator

Which distortion is least objectionable in case of audio amplifers? A) Phase distortion B) Frequency distortion C) Harmonic distortion D) Inter modulation distortion.

Description : Which distortion is least objectionable in case of audio amplifers? A) Phase distortion B) Frequency distortion C) Harmonic distortion D) Inter modulation distortion.

Last Answer : A) Phase distortion

When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Description : When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Last Answer : Normal gain.

Which of the two types of magnetic tape is used to record audio and instrumentation type signals in the VLF to 2.5MHz frequency range?

Description : Which of the two types of magnetic tape is used to record audio and instrumentation type signals in the VLF to 2.5MHz frequency range?

Last Answer : Analog magnetic tape.

The result whenever the sampling rate is less than twice the highest audio frequency.

Description : The result whenever the sampling rate is less than twice the highest audio frequency.

Last Answer : alias

State the frequency range for audio frequency and voice frequency.

Description : State the frequency range for audio frequency and voice frequency.

Last Answer : The generally accepted standard range of audible frequencies is 20 to 20,000 Hz, The usable voice frequency band ranges from approximately 300 Hz to 3400 Hz.

The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Description : The audio signals of TV are (1) Amplitude modulated (2) Frequency modulated (3) Unmodulated (4) Velocity modulated

Last Answer : Frequency modulated

Assertion (A) : Wein bridge oscillator is generally used as a variable audio frequency oscillator Reason (R) :

Description : Assertion (A) : Wein bridge oscillator is generally used as a variable audio frequency oscillator Reason (R) : by using either capacitor (or) resistor in one of the arms of the bridge, the frequency of a wein bridge oscillator ... C) (A) is true but (R) is false (D) (A) is false but (R) is true

Last Answer : Assertion (A) : Wein bridge oscillator is generally used as a variable audio frequency oscillator Reason (R) : by using either capacitor (or) resistor in one of the arms of the bridge, the frequency of a wein bridge oscillator ... ) (A) is true but (R) is false (D) (A) is false but (R) is true

Computer and Audio Gurus: I need help upgrading my sound card for MacBook Pro Early 2011?

Description : Computer and Audio Gurus: I need help upgrading my sound card for MacBook Pro Early 2011?

Last Answer : answer:As far as I know the sound subsystem is built onto the motherboards logic boards and not a separate card. This generally the case for all laptops and, more than likely, the Apple desktops. Your only re-course would be using an external sound device.

What equipment (or programs, plugins, etc.) would I need as an audio engineer to make the quality of my music sound radio-ready?

Description : What equipment (or programs, plugins, etc.) would I need as an audio engineer to make the quality of my music sound radio-ready?

Last Answer : A lot of the sound has to do with how it’s mastered – you want to compress while not overly affecting dynamic range.

How to fix no audio/sound in Windows 7?

Description : How to fix no audio/sound in Windows 7?

Last Answer : Try updating the driver, and going into the realtek hd audio manager and changing the output, same with right clicking on the speaker icon on the taskbar.

Is There an Auto Trim/crop feature on the Sony Sound Forge Audio Studio version 9?

Description : Is There an Auto Trim/crop feature on the Sony Sound Forge Audio Studio version 9?

Last Answer : This is a common feature in most of the major software manufacturers if not all. Sound forge definitely has an Auto Trim/Crop feature. It will also automatically crop the audio to the nearest zero crossing point.

Is there a way to delete the sound of my typing from an audio recording of a lecture?

Description : Is there a way to delete the sound of my typing from an audio recording of a lecture?

Last Answer : Theoretically, yes. Practically speaking, for the normal human? No. You can reduce the sound of the keyboard a little through the use of a notch filter, but it won’t really make much difference. Sorry.

We cannot insert audio recording sound in a slide. -Technology

Description : We cannot insert audio recording sound in a slide. -Technology

Last Answer : FalseWe can insert audio recording sound in a slide.

Will a bad sound card slow down audio and video play back?

Description : Will a bad sound card slow down audio and video play back?

Last Answer : Possibly. More likely, if your card has gone bad, you will have no sound output at all and video will be unaffected.

Is the M-Audio Audiophile 2496 Sound Card MAC compatible?

Description : Is the M-Audio Audiophile 2496 Sound Card MAC compatible?

Last Answer : Yes, that sound card should work perfectly well with a Mac so long as it meets the minimum requirements (G3* 500MHz with OS 9.2.2, 128MB RAM # G4* 500MHz with OS X 10.1.5, 10.2.6 or greater ... you aren't sure your machine can run it, open up the About This Mac screen and compare with those specs.

How is the sound quality of the Audio Technica AT-LP2D-USB?

Description : How is the sound quality of the Audio Technica AT-LP2D-USB?

Last Answer : It sounds good and gets 4 out of 5 stars in reviews.

Which sound cards are best used for professional audio editing?

Description : Which sound cards are best used for professional audio editing?

Last Answer : Creative labs is an excellent sound card when you are looking for audio editing which is great for a more professional look with it comes to the audio.