The Big Bang, which is the theoretical event marking the beginning of the universe, did not produce sound waves in the way we typically understand them. Sound waves require a medium, such as air or water, to travel through, and in the early stages of the universe, there was no such medium.
However, the Big Bang did produce a rapid expansion of space itself, which is often referred to as the "inflation" of the universe. This expansion caused fluctuations in the density of matter and energy, leading to the formation of cosmic microwave background radiation (CMB). The CMB is a faint glow of radiation that permeates the entire universe and is considered to be the afterglow of the Big Bang.
While the CMB is not sound waves, it does encode information about the early universe. It is essentially a snapshot of the universe when it was about 380,000 years old. Since then, the universe has expanded and evolved, and the CMB has become stretched and redshifted over time.
In summary, the Big Bang did not produce sound waves, but it did generate the cosmic microwave background radiation, which can be seen as a remnant of the early universe.