Sleeping save and sound yet being waked by some sorts of noise, such as railway or speeding car across the road?

In some special situations, it’s necessary to create sound. However ,it’s too loud to be tolerate?

What if the bustling noise could be transfer into another alternative energy in life??

1. sound intensity vs. power generation efficiency

2. sound frequency vs. power generation efficiency

( the natural resonance frequency play a crucial role in collecting the most energy )

3. diaphragms vs. power generation efficiency

( different materials have their unique, most efficient resonance frequency )

Change sound intensity

Change the frequency

Change the diaphragm

Frequency (Hz)Measured

sound intensity(dB)

Measuredinduced voltage

(mV)

Measuredinduced current

(μA)

Calculated V/I（Ω）

200

100 125 1195 104.6

95 84 810.5 103.7

90 47 485.2 96.7

85 25 263.6 94.8

80 11 137.6 94.5

75 5 62.4 80.1

70 2 32.6 61.3

300

105 43 421.1 102.1

100 24 269.2 89.2

95 15 156.3 96.0

90 8 90.6 88.3

85 5 52.3 95.6

80 4 28.3 141.3

75 3 15.3 196.1

Marbled paper Graph paper

Aluminum foil paper Newspaper

0

5

10

15

20

25

0 200 400 600

Induce

d c

urr

ent(μA

)

Frequency (Hz)

70dB

75db

80dB

85dB

0

10

20

30

40

50

0 200 400 600

Induce

d c

urr

ent(μA

)

Frequency (Hz)

70dB

75db

80dB

85dB

90dB

95dB

0.0

4.0

8.0

12.0

16.0

20.0

0 200 400 600

Induce

d c

urr

ent(μA

)

Frequency (Hz)

70dB

75db

80dB

85dB

90dB

95dB

100dB

0.0

10.0

20.0

30.0

40.0

0 200 400 600

Induce

d c

urr

ent(μA

)

Frequency (Hz)

70dB

75db

80dB

85dB

90dB

95dB

100dB

Marbled paper Graph paper

NewspaperAluminum foil paper

After my brief experiment in the feasibility of whether we can turn sound back into energy, my opinion is:

Find out the most common-see frequency in each specific environment, and match the same resonance frequency material to gather the most extra energy.

the engine of flying airplane have fixed frequency

Speeding car in a range of speed might have resembling frequency

After the sound fully functioned, it could be collect in a energy-creating machine.

At the end, the energy can be apply to

surrounded electricity-consuming equipment. Auditorium audio equipment, light equipment

Airplane runway guidance light

Railway station LCD head-up panel

The whole concept is hoping that we use power to directly or indirectly generate noise ; thus, recycle the extra energy to make the best of it.

Sometimes collecting the surplus is a best way than generating again!!!