The MelGAN is a highly effective architecture for spectral inversion that has a Mean Opinion Score (MOS) of 3.61 that considerably outperforms the Griffin Lim algorithm having a MOS of just 1.57. In contrast with this, the MelGAN compares with the state-of-the-art WaveGlow and WaveNet architectures on text-to-speech and speech enhancement tasks on the LJSpeech and VCTK datasets [1].