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QUESTION: Dear ZZ

http://en.wikipedia.org/wiki/Sound_level_meter
http://en.wikipedia.org/wiki/Musical_instrument

Can we use Sound level meter to measure sound frequencies (Hertz - Hz) and sound volume (decibels - db) for the sound generated by different musical instruments viz Guitar, Piano, Violin, Saxophone, Trumpet, Flute, Drums etc ?.

Can we create a table having two columns namely Musical Instrument name and the Sound Frequency Range for each musical instrument measured by the Sound level meter (if applicable) ?.

Thanks & Regards,
Prashant S Akerkar

chart
chart  
ANSWER: Frequencies are not a singular measurement;  rather, we measure frequency in bands or bandwidth.

But, for the musical characteristics and bandwidth it is well established and you can find many such references in the literature/Internet.

See the attached.



---------- FOLLOW-UP ----------

QUESTION: Dear ZZ

Thanks.

Can the Sound level meter instrument
measure the sound volume in decibel for
the various musical instruments?.

Thanks & regards
Prashant s akerkar

ANSWER: Of course. That is its purpose; but it cannot distinguish exactly one sound from another sound; it reads what it presented to the microphone built into the level meter.

For example, if there are two instruments going at the same time the sound level meter reads the sum total of the sounds being presented.

Some level meters have a frequency spectrum readout that gives some idea of what frequency bands are most prevalent in the acoustic signal being detected but it is not so precise.



---------- FOLLOW-UP ----------

QUESTION: Dear zz

Thanks.

Other than Sound level meter instrument,
Which Other instruments can measure sound generated by musical instruments?.

Is it frequency analyzer?.

Thanks & regards
Prashant s akerkar

Answer
Sound level can be measured simply with a microphone and voltmeter to read the voltage level.

But, most sound level meters follow a standard frequency response profile.  The standards are international and they are used in acoustic design, concert hall instrumentation and so forth.

Here  is a popular professional meter:

http://www.bksv.com/Products/handheld-instruments/sound-level-meters/sound-level

Here are some of the international standards used for various purposes:

https://www.noisemeters.com/help/faq/standards.asp

Hope this helps.  

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ZZ

Expertise

Electronics questions about AC, DC and digital theory.

Experience

Graduate electrical engineer with over 40 years in electronic design, manufacturing, project organization and patent review. Experience in fields of industrial and consumer electronics (audio, video, acoustics, etc.)

Organizations
IEEE (Institute of Electrical and Electronics Engineers); Senior Life member AES (Audio Engineering Society), Fellow Life member

Education/Credentials
BSEE University of North Dakota

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