The sound quality of the audio tracks that are proposed in tango milonga:
As standard you used the famous song “Invierno” engraved 18 August 1937 from’ Francisco Canaro Orchestra with singer Roberto Maida.
The following four images of the sound spectrum of different audio formats:
As seen with the MP3 format 1 , 2 you lose almost the entire Bass, the rhythm of the Piano, the Cello and Viola; but also higher harmonics in 10.000 HZ and the lower ones in 60 HZ. How well you lose much of the voice.
The emotions are influenced more by the low mid frequencies, to dance there is based on “carpet rhythmic bass” type songs 1 , 2 mp3 little fit for use in the ballroom as “drains” energy.
This is the result of vision between the graphs ( listenable opening the link ). But in reality the listening test should be done using a Hi-Fi. The comparison will detect more “sharpness” , “bodied” of the various elements for the sizes 4 , 3, and a very sound “kneaded” for 2 , 1.
Also that the “heat” song 4 will be much greater than all the others and with very high volume the sound will remain little annoying ear.
It was not possible to perform a graph 5 “Vinyl” because the instrumentation of the format 4 not getting. The engraving on the disc being analog has a much higher quality.
Almost never the milongas have a sound system suitable to the music of tango, often the acoustics of the room has echoes and resonances. Having a “ingredients” of “high quality” reduces the problems of your room acoustics and improves the energy of milonga. Increase the volume in the room by analogy is a bit like doing the magnification of an image; more is poor before shelling.
The organization offers DJ having libraries with audio formats “in High Quality” and which uses equipment “Hi-Fi”, even digital ones, such as CD players or SOFTWARE SOUND CARDS and Professional, will derive tangible benefits.
Anyone interested to FORMAT 4 can request information here:
The data of the acquisition for sound 3 , 4 used for the tests:
The fundamental frequencies in Hz of music :
Instrument Frequency range in Hz
Piano concert 27.50 – 4.186.00
Tuba 43.65 – 349.23
Contrabass 41.20 – 246.94
Cello 65.41 – 987.77
Violet 130.81 -1.174.00
Violin 196.00 – 3.136.00
Clarinet 164.81 – 1.567.00
Trumpet 164.81 – 987.77
Guitar 82.41 – 880.00
Human voice frequency range required in the classical opera
Type of voice frequency range in Hz
Low 87.31 – 349.23
Baritone 98.00 – 392.00
Tenor 130 – 493.88
Contralto 130.81 – 698.46
Soprano 246.94 – 1.174.70
Bibliography and notes on’ acoustics: