Convert AAC to OPUS offline
Convert local AAC files to OPUS files offline by JavaScript in your web browser without any software downloads or file uploads!
OUTPUT FILES:
| # | File Name | File Size | Actions |
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How to convert AAC to OPUS offline
Choose local AAC files, choose "OPUS" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation. Use online converter instead if this offline converter doesn't work in your web browser.
| Name | AAC | OPUS |
| Full name | Advanced Audio Coding | Opus Audio Format |
| File extension | .aac | .opus |
| MIME | audio/aac | audio/opus |
| Developed by | Bell Labs, Fraunhofer Institute etc. | IETF codec working group |
| Type of format | Audio compression format | Audio file format |
| Introduction | 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. | 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. |
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