14:22

Sound Power, Intensity, Pressure Level

10:02

octave band analysis

11:39

FFT Analysis

05:08

beat vibration

03:19

dynamic damper

02:15

mass damper

15:30

Frequency Response Function(FRF)

19:27

vibration Transmissibility Ratio(TR)

21:38

Summary of vibration motions

14:50

damped forced vibration

11:50

undamped forced vibration

22:01

Damped free vibration

13:15

undamped free vibration

22:17

angular natural frequency(rad/sec, Hz) of undamped SDOF free vibration

04:51

Degree Of Freedom

14:33

vibration dB(displacement, velocity, acceleration level dB)

10:06

Human sensitivity to Vibration

16:56

vibration units (disp. velocity, accel.)

12:00

the definition of vibration

16:21

Articulation Index(%)_Sound Quality

17:29

Tonality - Sound Quality index

20:40

Fluctuation Strength & Roughness-sound quality index

09:21

sharpness(acum)_sound quality index

13:37

Loudness(sone) - Sound Quality Index

12:35

Sound Quality & Sound Quality analysis process

11:56

Bark scale(Critical bands)

16:11

frequency analysis (spectrum analysis)_FFT & Octave

08:21

Amplitude measurement - rms(root meam square) & average

17:02

time weighting(fast, slow, impulse) of sound level meter

29:18

transmission loss, reverberation time, STC, sound transmssion class

29:12

sound absorption coefficient, reverberation time, porous absorbers

10:16

sound reflection, absorption, transmission coefficient

23:26

sound wave behavior:reflection refraction, diffraction, interference

13:53

NVH? BSR?

10:56

sound sources & attenuation in distance

07:25

Masking effect, Cocktail party effect

12:13

Plus & Minus of deciBel(dB)

37:56

loudness level, equal loudness curves, A,C-weighting, phon, sone

30:29

sound longitudinal wave, frequency, period, wavelength, pitch, loudness, timbre