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This is the most common standard which can create the sensation of sound smashing from any horizontal direction 360c about the listener. The most common surround sound will be sent to a listener’s ear from 6 speakers: Center (C) in front of the listener, Left (L) and Right (R) at angles of 60c on either side of the center, and Left Surround (LS) and Right Surround (RS) at angles of 100 – 120c, plus a subwoofer whose position is not critical. The best place to play surround 5.1 sound is in movie theaters. Using AAC format, people can feel the sound quality without significantly reducing the premise, which is also more compact. Unlike MP3, it uses a new algorithm for encoding, which is more efficient and cost-effective. It is a file compression format specially designed for sound data. It’s clear that AAC file sounds much better than MP3 at the same bit rate, and until now, no MP3 file can surpass the AAC file at 256 Kbs. In 2000, after the emergence of the MPEG-4 video standard, AAC reintegrated its features, adding SBR technology and PS technology, in order to distinguish itself from the traditional MPEG-2 AAC, also known as the MPEG-4 AAC.ĪAC is designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 for a given data rate (e.g., 128 kbps) and at the same bit rate, and is playable in almost all software that can play MP3 files. Developed by Fraunhofer IIS, Dolby Labs, AT&T, Sony and other companies, the aim is to replace the MP3 format. AAC appeared in 1997 and based on MPEG-2 audio coding technology. Extra: How to Convert AAC File to MP3 Format?ĪAC stands for Advanced Audio Coding, which belongs to the container format category and it’s the default audio format used by iTunes.Part 4: Play AAC File on Mac and PC with High-quality audio Enjoyment.