Superior Door Closing Sound
Gives a statelier feeling by making the sound of closing doors quieter. This gives the impression such as luxury vehicle.
Performance Dampers absorb excess vibration from the chassis
- The sound of doors closing is quieter
- This instills a statelier feeling
The vehicle feels like it is a superior grade model
We measured the difference in sound pressure with and without Performance Dampers by measuring sound around the ears 10 times when closing the doors under certain conditions.
- SamplingRate : 48 kHz
- FFT Line : 512 Line
- Overlap : 32
Driver’s Seat Sound Pressure
Average of 10 measurements at peak frequency
|Peak frequency||Without Performance Dampers||With Performance Dampers||Effects|
|2000Hz||77.2dB||76.4dB||⊿0.8dB ⇒ 17% reduction in energy|
|2200Hz||77.3dB||76.2dB||⊿1.1dB ⇒ 22% reduction in energy|
Taking the average value of peaks from 10 measurements with and without Performance Dampers, we found that sound pressure was reduced by about 1 dB with Performance Dampers. This is approximately 20% energy reduction. Verification confirmed that the sound of doors closing definitely became quieter.
*Data based on Yamaha Motor’s evaluations
*It may not be possible to obtain sufficient benefits, depending on the driving environment, including road surface conditions and vehicle speed.
*Individual differences exist in how benefits are felt.