See the X-59 for a working example of quieter supersonic flight.

https://en.wikipedia.org/wiki/Lockheed_Martin_X-59_Quesst

As of 2017, the ground noise was expected to be around 60 dB(A), about 1/1000 as loud as current supersonic aircraft. This was to be achieved by using a long, narrow airframe and canards to keep the shock waves from coalescing.[4] A 2018 projection revised this figure, estimating that the aircraft would create a 75 EPNdB thump on ground, as loud as closing a car door, which would be around 16 times quieter than the 105-110 EPNdB boom made by Concorde (as decibels is a logarithmic scale).[5][33] The central engine has a top-mounted intake for low boom, but inlet flow distortion due to vortices is a concern.[11]