Kam Ng | Acoustical Solutions

Kam Ng

Vice President of Engineering


Message Kam

  • Virginia

Commercial Appliance Manufacturer


An industry leading commercial appliance manufacturer needed to reduce the sound generated by their food blending machinery. They approached Acoustical Solutions to assist in designing and engineering sound reducing treatments. Producing a quieter appliance would help them acquire an edge over their competitors.

Service Provided:

This international manufacturer was on a path to improve a range of small commercial drink processing appliances. The goal was to generate a prototype that would be significantly superior over other competitive products. To do this, the noise generated by the equipment would need to be dramatically reduced. When operating in an open kitchen restaurant or bistro, a quieter appliance would be a more attractive solution. This would potentially increase sales as well as lower the noise levels in the environments in which they are utilized.

Acoustical Solutions held meetings with the client to fully scope out the project details. Research was then conducted and sound measurements taken. The results of these tests would then be used to assess the various noise sources of a single appliance. Utilizing our experience along with scientific analysis, we determined ways to treat each noise source. The solutions suggest either making a change to the product design or by adding material.

Specific Challenges:

As with all appliances, the elegance of solution is of paramount to design and function of the product. One does not have the luxury of completely enclosing an appliance. This would limit access to the intended function of the appliance. This is especially true in commercial settings where the appliance will not only be in constant use, but also will be visible to the public.


Our analysis identified three noise sources to address. The prototypes should be approached in 3 phases to address these 3 very specific noise sources. With the first phase complete, it was found that the prototype solution could yield a reduction of 6 dBA. This is over halfway to the design goal agreed upon with the client. Furthermore, it could be retrofitted to existing models with no additional modification to their design.