QuestionQuestion

Check the file: Question.pdf

Solution PreviewSolution Preview

This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.

The microphone is 7' far from the source. The source produces pressure of 100dbSPL at 4'. So until 7' there will be a reduction of

20log(7/4) = 20log1.75 = 4.86dB

So the sound pressure level at mic will be

100 – 4.86 = 95.14dB SPL.

We know that 94db SPL corresponds to 1Pa of pressure, and on this mic 1Pa yields -46dbV. The sound pressure level at mic is 95.14dB SPL, which is

95.14 – 94 = 1.14dB SPL   

more. This means that there will be 1.14dBV more on the mics output also.

-46 + 1.14 = -44.86dBV

Between the mic and mic preamp there is a 10dB loss on mic pad, so the input to the preamp will be

-44.86 – 10 = -54.86dBV...
$10.00 for this solution

PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

Find A Tutor

View available Digital Electronics Tutors

Get College Homework Help.

Are you sure you don't want to upload any files?

Fast tutor response requires as much info as possible.

Decision:
Upload a file
Continue without uploading

SUBMIT YOUR HOMEWORK
We couldn't find that subject.
Please select the best match from the list below.

We'll send you an email right away. If it's not in your inbox, check your spam folder.

  • 1
  • 2
  • 3
Live Chats