It is possible that it will help BUT unless the system is designed properly from the start the noise problem will persist but it might not be as bad.

I have two questions about our noise problem coming from our HVAC blower.

If I have the return and air flow going straight into the fan (about 12 inches or so of duct work between the fan and return grill):

1. What angle should I have the sheet metal baffle?
2. What does the sheet metal baffle look like?

My HVAC contractor wants to charge me $750 to produce and install the sheet metal baffle to "greatly" reduce the noise. I have friends who can fabricate the sheet metal baffle if I give them more instructions, but we have no idea about HVAC and metal baffles.

Thanks in advance.

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I don't live there anymore but it was one vent about 6 x 14 with no damper inside