The Hz's and the dB's of Real Music!

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The Hz's and the dB's of Real Music!

Mensagem  manel1 em 2/3/2012, 19:41

Gama de frequências dos instrumentos:

Instrument Frequency range Hz
Piano (concert) 27.50 - 4,186.00
Bass Tuba 43.65 - 349.23
Double Bass 41.20 - 246.94
Cello 65.41 - 987.77
Viola 130.81 -1,174.00
Violin 196.00 - 3,136.00
Clarinet 164.81 - 1,567.00
Flute 261.63 - 3,349.30
French horn 110.00 - 880.00
Trombone 82.41 - 493.88
Trumpet 164.81 - 987.77
Guitar 82.41 - 880.00


Voz humana


Type of voice Frequency range Hz
Bass 87.31 - 349.23
Baritone 98.00 - 392.00
Tenor 130 - 493.88
Contralto 130.81 - 698.46
Soprano 246.94 - 1,174.70


Sound pressure levels

This is a simple scale based on every day observations similar to the beaufort wind scale. Remember that the decibel is a log scale so that a 3dB increase is a doubling of the actual sound energy, 10dB represents a ten fold increase. However to complicate matters the human ear is not linear and perceives a 10 dB increase as a very approximate doubling of volume.
Sound level (dB) approximate observed equivalent.

Sound proof room, threshold of hearing.
Rustle of leaves in a breeze.
Whisper
Quiet conversation
Conversation at home
Typical outside conversation
Noise in a large shop (no musac ;-))
City street
Noisy office with typing (you need to raise your voice)
Underground railway train passing
Pneumatic Drill at 3 m
Prop aircraft taking off
Jet aircraft taking off - threshold of pain.

Remember that anything over 80 dB can damage hearing over time.


Intensidade audível dos instrumentos sem amplificação a curta distancia (db)


Bass drum 35 - 115
Cymbal 40 - 110
Organ (orchestral) 35 - 110
Piano 60 - 100
Trumpet 55 - 95
Violin 42 - 95


Fonte: http://www.tnt-audio.com/topics/frequency_e.html

manel1
Equipa Audiopt - Moderação
Equipa Audiopt - Moderação

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