Vehicles Noise Tracking Solution
The Noise Scope is a device designed to record and analyze various noises (BSR/NVH) generated in vehicles, and to track down or quantify the sources of these noises. It utilizes accelerometers to record vibrations generated in vehicles and calculates the Time Difference of Arrival (TDOA) of signals from each sensor to determine which sensor is closest to the source of the signal. Using a microphone, it records the sound generated in the vehicle and quantifies it, allowing users to easily determine the magnitude of the sound. By connecting an OBD device, it can acquire parameters such as RPM and speed of the vehicle, enabling comparison of sound levels based on vehicle speed during driving.
Vehicles Noise Tracking Solution
The Noise Scope is a device designed to record and analyze various noises (BSR/NVH) generated in vehicles, and to track down or quantify the sources of these noises. It utilizes accelerometers to record vibrations generated in vehicles and calculates the Time Difference of Arrival (TDOA) of signals
from each sensor to determine which sensor is closest to the source of the signal. Using a microphone, it records the sound generated in the vehicle and quantifies it, allowing users to easily determine the magnitude of the sound. By connecting an OBD device, it can acquire parameters such as RPM and speed of the vehicle, enabling comparison of sound levels based on vehicle speed during driving.
| Noise occurring from vehicles | ||
|---|---|---|
 |  | |
NVH (Noise and Vibration, Harshness) | BSR (Buzz, Squeak, Rattle) | |
Noise from internal combustion engines and driving | Noise occurring from compomemt assembly joints, fastening points, or friction area | |
Noise Reduction | Objective | Cause Elimination |
Normal Noise, Low-Frequency range | Characteristics | Excessive Noise, High-Frequency Range |
Level assessment | Analysis Method | Location Tracking |
It is important to identify the cause of the occurrence and understand the transmission path | VS | Difficulty in identifying the cause and occurrence only under specific operating conditions necessitates the elimination of noise causes |
| Noise occurring from vehicles | ||
|---|---|---|
 |  | |
NVH (Noise and Vibration, Harshness) | BSR (Buzz, Squeak, Rattle) | |
Noise from internal combustion engines and driving | Noise occurring from compomemt assembly joints, fastening points, or friction area | |
Noise Reduction | Objective | Cause Elimination |
Normal Noise, Low-Frequency range | Characteristics | Excessive Noise, High-Frequency Range |
Level assessment | Analysis Method | Location Tracking |
It is important to identify the cause of the occurrence and understand the transmission path | VS | Difficulty in identifying the cause and occurrence only under specific operating conditions necessitates the elimination of noise causes |
