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If a tone or signal were presented at 40dBSL to a listener with a threshold of 40dBHL what is the sound level of the signal?
The sound level of the signal would be 40 dBHL. The dBHL unit is used to specify sound levels relative to an individual's hearing threshold, while the dBHL unit is used to specify sound levels relative to a standard reference sound pressure level. When the sound level in dBHL is equal to the sound pressure level in dBSL, the sound level of the signal is the same as the signal level presented.
What are the devices which converts sound signal into electrical signal other than microphone?
One is the hydrophone, used to pick up sound waves underwater.
Does 'the' have a short vowel sound?
No.When used before a vowel sound, "the" has a long E sound.(The animal is wild.)When used before a consonant, "the" has a schwa or unstressed sound (thuh).(The wild animal is loose)
A signal used to give warning?
Flash high beams. Sound the horn.
What animal roar can be heard over 10km away?
A lion's roar can be heard over 10km away, as it is a powerful sound signal used by males to communicate their presence and territory to potential rivals and mates.
What part of speech is signal?
Signal is a noun (a signal) and a verb (to signal).
Why AM is used to transmit picture iv TV?
There is no real reason. In the UK's old analogue system AM was used for picture and FM used for sound. In France they used the opposite system, FM for picture and AM for sound. Everything is going digital now, so does not apply, the RF signal is a FSK data signal.
True or Falce Sound waves can interfere with one another so that no sound results?
falseanswer 2. Over a small region, an 'antiphase signal' can be used to cancel out a sound.
What sound signal should be used if a boat is leaving dock to alert others?
one prolonged blast
What is a decibel level?
A unit used to measure the intensity of a sound or the power level of an electrical signal. Someones voice could raise by a decibel.It is used to measure the sound intensity and loudness.
What is the term recording?
The term recording refers to a signal that is used to encode something such as a picture or sound that has been recorded.
What allows us to hear sounds from a computer?
AS the board and CPU execute programs, they send associated sound signals to the sound card on your computer. The sound card converts the digital signal into analogue and sends that signal to the external port(s). Assuming a speaker is plugged in, the signal is carried over wire to the speaker (or headphone) speaker, where a electromagnet is used to move the speaker cone. This produces sound which can be heard.
