The Tupolev TU-144 was the world's first commercial supersonic transport aircraft. It was designed and developed in the USSR and flew for the first time in 1968. Contrary to the more popular Anglo-French "Concorde", the TU-144 had a short and irregular operational history, and only completed 55 passenger flights. Its early retirement was due in part to a lousy safety record, a series of technical problems, and a west-east rivalry typical of the cold war era that shunned it from operating in other markets. The following is an excerpt from Wikipedia that describes one of the peculiarities of this airplane:

"Unlike in the Concorde, the Tu-144 cooling system was very noisy. Passengers seated next to each other could have a conversation only with difficulty, and those seated two seats apart could not hear each other even when screaming and had to pass hand-written notes instead. Noise in the back of the aircraft was unbearable. Alexei Tupolev acknowledged the problem to foreign passengers and promised to fix it, but never had the means to do it." [30][N 1]

https://en.wikipedia.org/wiki/Tupolev_Tu-144#Cabin_noise.