RHINO FILE FOR CONSTRUCTION
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NOTES FOR CONSTRUCTION1) DOVETAIL JOINTS DONT WORK ON A CNC ROUTER
2) THE MATTRESS TOPPER FOAM WILL OXIDIZE AND CHANGE FROM WHITE TO OFF WHITE (SOMETIMES YELLOW) 3) RESISTORS 100 K ARE TOO STRONG FOR SPEAKERS USE 100 OHMS 4) WHEN SOLDERING MAKE SURE YOU ARE GENTLE WITH CONNECTION BECAUSE IT CAN BREAK 5) NAILING THE BOX WORKED BETTER THEN SCREWING IT ON THE EDGES |
PUTTING MATERIALS TO THE TEST
Materials Being Tested:
INSULATION FOAM
STYROFOAM
CARDBOARD
MDF
CONCRETE
How to prep for experiment:
Try your best to be in a room that doesn't have that much noise in it. If there is noise just measure it with the 5-N-1 Multi-Function Reader so you can accurately account for any extra sounds that may be entering your sound proof box.
INSULATION FOAM
STYROFOAM
CARDBOARD
MDF
CONCRETE
How to prep for experiment:
Try your best to be in a room that doesn't have that much noise in it. If there is noise just measure it with the 5-N-1 Multi-Function Reader so you can accurately account for any extra sounds that may be entering your sound proof box.
Multiple Tones: Testing
Once your constants and variables are recording its now time to test out the Arduino multiple tones code.
The assembly and code for this section can be found on the construction page. Just a quick reminder on materials you should have :
1) Three 8Ohm Watt speakers
2) Large breadboard
3) Elegoo Uno R3
4) Wires
5) Switch or Buttons
6) Electrical Tape if you don't have the ability to solder
You want to run the code in the sound proofing box alone with lining
This data will be used as a variable that you will then compare your tested material to.
The assembly and code for this section can be found on the construction page. Just a quick reminder on materials you should have :
1) Three 8Ohm Watt speakers
2) Large breadboard
3) Elegoo Uno R3
4) Wires
5) Switch or Buttons
6) Electrical Tape if you don't have the ability to solder
You want to run the code in the sound proofing box alone with lining
This data will be used as a variable that you will then compare your tested material to.
BUILD, TEST (FIRST TESTING)
Noises picked up by 4-N-1 during my first run of experiment
DOG CRYING: 70.1 dB
TV: 67.7 dB
A/C: 32.3 dB
REGULAR MOVEMENT: 35.7 dB (This sound came from me moving the box when changing material in and out)
After this step you want to test the quality of the room and your sound proofing box.
ROOM
MAX: 44.1 dB
MIN: 36.8 dB
AVG. OVER 5 MINUTES: 36.32 dB
SOUND PROOFING BOX
MAX: 33.3 dB
MIN: 29.7 dB
AVG. OVER 5 MINUTES: 32.74 dB
Ideally the sound proofing box needs to be lower in decibels than a min of 29.7 dB. In the next experiment some modifications need to be made to ensure at least a min of 10 dB. Since we did have some noise interfering with the box. I concluded that the box may need to be moved to a room with a lower decibel level to make sure my constant (the sound proofing box) can accurately test different building material.
Noises picked up by 4-N-1 during my first run of experiment
DOG CRYING: 70.1 dB
TV: 67.7 dB
A/C: 32.3 dB
REGULAR MOVEMENT: 35.7 dB (This sound came from me moving the box when changing material in and out)
After this step you want to test the quality of the room and your sound proofing box.
ROOM
MAX: 44.1 dB
MIN: 36.8 dB
AVG. OVER 5 MINUTES: 36.32 dB
SOUND PROOFING BOX
MAX: 33.3 dB
MIN: 29.7 dB
AVG. OVER 5 MINUTES: 32.74 dB
Ideally the sound proofing box needs to be lower in decibels than a min of 29.7 dB. In the next experiment some modifications need to be made to ensure at least a min of 10 dB. Since we did have some noise interfering with the box. I concluded that the box may need to be moved to a room with a lower decibel level to make sure my constant (the sound proofing box) can accurately test different building material.
ITERATE, REPEAT (SECOND TESTING)
STEP ONE: FINDING A ROOM
During my second run of the experiment I went into a roam with an average of 46.6 dB.
I tested every empty room I could find in Richardson Memorial and this room had the lowest decibel reading.
The 5-N-1 reader was picking up the A/C unit in Rm 404,
Finding a room with a minimum of 10 dB is difficult to find so a relatively quiet room will work. As long as the rooms decibels doesn't interact with the testing box to a level where your results will not be accurate.
STEP TWO: TESTING THE TONE
The tones where then tested inside of the empty testing box (LINED) so I have something to compare my tested materials absorbency qualities to.
AVERAGE OVER A THREE MINUTE SPAN
TONE A 71.4 MAX
70.0 MIN
TONE B 66.2 MAX
45.7 MIN
TONE C 68.8 MAX
41.4 MIN
STEP THREE: INSERT TESTING MATERIALS
Once all of the constant and variables are recorded, proceed with testing each tone individually on each material.
STEP ONE: FINDING A ROOM
During my second run of the experiment I went into a roam with an average of 46.6 dB.
I tested every empty room I could find in Richardson Memorial and this room had the lowest decibel reading.
The 5-N-1 reader was picking up the A/C unit in Rm 404,
Finding a room with a minimum of 10 dB is difficult to find so a relatively quiet room will work. As long as the rooms decibels doesn't interact with the testing box to a level where your results will not be accurate.
STEP TWO: TESTING THE TONE
The tones where then tested inside of the empty testing box (LINED) so I have something to compare my tested materials absorbency qualities to.
AVERAGE OVER A THREE MINUTE SPAN
TONE A 71.4 MAX
70.0 MIN
TONE B 66.2 MAX
45.7 MIN
TONE C 68.8 MAX
41.4 MIN
STEP THREE: INSERT TESTING MATERIALS
Once all of the constant and variables are recorded, proceed with testing each tone individually on each material.
TEST RESULTS - FIRST TESTING |
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IMPROVEMENTS/CHALLENGES/WHAT'S NEXT?
Experiment needs to done in a better location
Dovetail joints do not work when using the CNC router
Middle panel should only be testing material. (I have my doubts on the wood holder that holds testing material)
When experiment is repeated the testing material will be made larger to support itself, due to my question on the wooden holder.
The testing room will be lower than a 20 dB if possible.
Speakers will be soldered and not taped together for connection
Dovetail joints do not work when using the CNC router
Middle panel should only be testing material. (I have my doubts on the wood holder that holds testing material)
When experiment is repeated the testing material will be made larger to support itself, due to my question on the wooden holder.
The testing room will be lower than a 20 dB if possible.
Speakers will be soldered and not taped together for connection
RESULTS - SECOND TESTING
TONE A
TONE B
TONE C
CONCLUSION
MDF PERFORMED BETTER DURING TONE 1
MAX 50.4dB
INSULATION FOAM PERFORMED BETTER DURING TONE 2
MAX 57.6dB
MDF PERFORMED BETTER DURING TONE 3
MAX 52.0dB
SUMMARY
From my experiment MDF absorbs sound more efficiently than the other testing materials. Testing soft material absorbed the most sound waves because they have more space between the molecules as a result the sound waves are trapped in the soft material and is absorbed. Hard material reflect the soundwaves back to where the sound waves originated, because they can not penetrate the solid very easily so the sound waves bounce off the hard material. Even though I had other "soft material" when looking at the results MDF performed better as a sound proofing wall on its own. When this material is added to a complex wall assembly it will help reduce the amount of unwanted sound entering your home or business.
MDF PERFORMED BETTER DURING TONE 1
MAX 50.4dB
INSULATION FOAM PERFORMED BETTER DURING TONE 2
MAX 57.6dB
MDF PERFORMED BETTER DURING TONE 3
MAX 52.0dB
SUMMARY
From my experiment MDF absorbs sound more efficiently than the other testing materials. Testing soft material absorbed the most sound waves because they have more space between the molecules as a result the sound waves are trapped in the soft material and is absorbed. Hard material reflect the soundwaves back to where the sound waves originated, because they can not penetrate the solid very easily so the sound waves bounce off the hard material. Even though I had other "soft material" when looking at the results MDF performed better as a sound proofing wall on its own. When this material is added to a complex wall assembly it will help reduce the amount of unwanted sound entering your home or business.