Noise Helper
Detailed App Info:
Application Description
1. Used for basic sound calculation ,like dbA ,noise level ,attenuation etc；
2. Point source attenuation algorithm according to ISO9613;
3. Road noise algorithm to calculate LmE according to RLS-90；
4. Railway noise algorithm to calculate LmE according to Schall 03；
5. Road noise algorithm to calculate (LoE)S, (LoE)M and (LoE)L according to HJ2.4-2009 Road China;
6. Road noise algorithm to calculate Vs, Vm and Vl according to HJ2.4-2009 Road China.
2. Point source attenuation algorithm according to ISO9613;
3. Road noise algorithm to calculate LmE according to RLS-90；
4. Railway noise algorithm to calculate LmE according to Schall 03；
5. Road noise algorithm to calculate (LoE)S, (LoE)M and (LoE)L according to HJ2.4-2009 Road China;
6. Road noise algorithm to calculate Vs, Vm and Vl according to HJ2.4-2009 Road China.
Requirements
Your mobile device must have at least 4.02 MB of space to download and install Noise Helper app. Noise Helper was updated to a new version. Purchase this version for $0.00
If you have any problems with installation or in-app purchase, found bugs, questions, comments about this application, you can visit the official website of YUANQUAN LI at http://tyevolution.blog.163.com/.
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