In this research, the effect of cold on the sound transmission rate in a steel cylindrical shell is examined through both experimental and numerical methods. As the temperature decreases, the mechanical properties of the shell, including the elastic modulus, change, which impacts the vibrational behavior and consequently the sound transmission through the shell. To investigate this issue experimentally, the structure was excited using an acoustic testing chamber where acoustic waves were sent, and the sound pressure level passing through the shell was measured at two different temperatures: 25°C and -70°C. In the numerical analysis section, finite element modeling of the cylindrical shell was conducted using COMSOL software, and the acoustic vibrational analysis was performed numerically on the model at the two specified temperatures. The results of the numerical simulation matched very well with the experimental results, indicating that the numerical model is capable of adequately predicting the acoustic vibrational behavior of the shell at different temperatures. Furthermore, the findings of this research demonstrated that temperature significantly influences the sound transmission mechanism in cylindrical shell structures, and as the temperature decreases, the sound pressure level passing through the shell decreases. Therefore, with a thorough understanding of this matter, it is possible to design more optimized solutions for reducing noise and vibrations in such structures under the effects of temperature gradients in thermal environments.