The term "high quality" in the context of "Spectral (2016) Dual Audio Hindi High Quality" refers to the superior audio and video specifications of the movie file. High-quality audio typically implies a high bitrate, lossless or high-bitrate lossy audio codec (such as Dolby Atmos, DTS:X, or AC-3), and a sample rate of 48 kHz or higher. High-quality video typically implies a high resolution (such as 1080p or 4K), a high bitrate, and a video codec with a high compression efficiency (such as H.264 or H.265).