Bitrate is a key factor for audio quality. Dolby Digital AC3 supports bitrates from 32 up to 640 kbps for 5.1 channel setups. The most common bitrates you'll find on DVDs and Blu-rays are and 448 kbps , with some Blu-ray tracks reaching 640 kbps . For comparison, a standard MP3 file is typically 128 to 320 kbps but in stereo. The higher bitrate and multi-channel nature of AC3 5.1 produce a more expansive, detailed, and impactful sound.
(Audio Codec 3), or Dolby Digital , is a lossy audio compression technology developed by Dolby Laboratories. The "5.1" refers to the channel configuration: dolby digital ac3 51 audio hindi songs download work