Convert AAC to OPUS online for free
1: Choose multiple local AAC files or enter the URL of an online AAC file. 2: Choose "OPUS" as target format and set options. 3: Click the "START CONVERSION" button to convert AAC files to OPUS online.
Set conversion options (optional)
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File extension: .aac
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.
File extension: .opus
Opus is a lossy audio coding format developed by Xiph and standardized by the IETF, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low end ARM3 processors.