5. APPLICATION

5.1 The Sound Frequency

In recording studios as well as stage or radio plays, the EQU Series Graphic Equalizer will be your valuable sound tool to modify the frequency "contour " of a sound .but first of all , you should clearify the typical frequency of each instrument and voice, so that can you obtain nice results in terms of sound characterization. The tables on the following pages give you an idea of specific frequencies and their acoustic significance.

Typical Frequency of Each Instrument and Voice

Mid C

CDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABC

25

31

40

50

62

80

100 125 160 200 250 320 400 500 640 800

1K

1.3K 1.6K

2K

2.5K 3.1K

4K

5K

6.2K

8K

10K 13K 16K 20K

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hyman gearing range VOCAL

Soprano

Contralto

Baritone

Bass

WOODWIND

Piccolo

Flute

Oboe

Clarinet in B flat or A

Clarinet in E flat

Bass Clarinet

Basset Hom

Cor Anglais

Bassoon

Double Bassoon

BRASS

Soprano Saxophone

Alto Saxophone

Tenor Saxophone

Baritone Saxophone

Bass Saxophone

Trumpet in C

Trumpet in F

Alto Trombone

Tenor Trombone

Bass Trombone

Tuba

Valve Hom

STRINGS

Violin

Viola

Cello

Double Bass

Guitar

KEYBOARDS

Pianoforte

Organ

PERCUSSION

Celesta

Timpani

Xylophone

25

31

40

50

62

80

100 125 160 200 250 320 400 500 640 800

1K 1.3K1.6K 2K

2.5K 3.1K

4K

5K 6.2K 8K

10K 13K 16K 20K

FREQUENCY

10

Page 11
Image 11
Nilfisk-ALTO EQU user manual Application, Sound Frequency, Typical Frequency of Each Instrument and Voice