fbpx Skip to main content
Avatar
Please consider registering
Guest
Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
Register Lost password?
sp_Feed sp_TopicIcon
NRC/STC
Avatar
Member
Members
Forum Posts: 3
Member Since:
March 18, 2018
sp_UserOfflineSmall Offline
1
March 18, 2018 - 9:18 am
sp_Permalink sp_Print

Hello all!,

Do materials with high NRC generally have a high STC as well?

Avatar
Chief Acoustics Engineer
Forum Posts: 570
Member Since:
August 12, 2013
sp_UserOfflineSmall Offline
2
March 18, 2018 - 9:28 am
sp_Permalink sp_Print

It depends on the assembly methodology of those materials and the amplitude and the frequency you are fighting against. Density is just one variable that must be considered. Remember that NRC is calculated using a frequency range starting at 125 Hz. – 4,000 Hz. An NRC is not applicable below 125 Hz where most noise problems lie.

Avatar
Member
Members
Forum Posts: 3
Member Since:
March 18, 2018
sp_UserOfflineSmall Offline
3
March 20, 2018 - 5:21 pm
sp_Permalink sp_Print

Hi Dennis, may I email or message you directly regarding my concern on this topic?

Avatar
Chief Acoustics Engineer
Forum Posts: 570
Member Since:
August 12, 2013
sp_UserOfflineSmall Offline
4
March 20, 2018 - 6:16 pm
sp_Permalink sp_Print
Avatar
Member
Members
Forum Posts: 3
Member Since:
March 18, 2018
sp_UserOfflineSmall Offline
5
March 25, 2018 - 1:31 pm
sp_Permalink sp_Print

Thanks, Dennis, I just emailed you!

Forum Timezone: America/Los_Angeles
Most Users Ever Online: 142
Currently Online:
Guest(s) 3
Currently Browsing this Page:
1 Guest(s)
Forum Stats:
Groups: 4
Forums: 10
Topics: 562
Posts: 1504

 

Member Stats:
Guest Posters: 28
Members: 18015
Moderators: 0
Admins: 2
Administrators: admin, Dennis Foley