Question
How do I fix an audio compression error on my computer?
Answer
Advanced Audio Coding (AAC) is a standardised, lossy digital audio compression scheme. It was developed with the cooperation and contributions of companies mainly including Dolby, Fraunhofer (FhG), AT&T, Sony and Nokia, and was officially declared an international standard by the Moving Pictures Experts Group in April of 1997. It was written into specification as Part 7 of the MPEG-2 standard, and again into Part 3 of the MPEG-4 standard. As such, AAC can be referred to as MPEG-2 Part 7 and MPEG-4 Part 3 depending on its implementation, but is most often referred to as MPEG-4 AAC, or AAC for short. However, "MP4" usually refers to the format described in MPEG-4 Part 14, which is a container format for carriage of video and audio data.
— Source: Wikipedia (www.wikipedia.org)