How to change aac file to mp37/11/2023 Lossless Editing Since AAC is a lossy compression format, meaning some information (quality) is lost during encoding, it's important to avoid decoding and re-encoding AAC audio unnecessarily. As the pages that follow will show, you can cut, join, mux, or demux with tools that are free and relatively simple to use. But that doesn't mean you won't be able to perform these basic editing tasks as easily. Due to AAC's relatively new introduction as a standard it's not as easy to find tools for editing as other formats like MP3. Whether you're extracting an audio stream from a video file, joining multiple songs so they'll play together when you use shuffle playback on your iPod, or cutting a small segment to make a ringtone you're likely to have the need to edit AAC audio eventually. With all the AAC audio around it's ineveitable that people will need to edit it. Its relative efficiency, resulting in small file sizes, even makes it suitable for use with mobile phones for ringtones and even general purpose multimedia files. It's the standard audio format sold in the iTunes store, and as a result is widely supported in portable media players. Although the original version of AAC was actually an addition to the MPEG-2 specification, it's much more familiar to most people as the standard audio used in MP4 files, either alone or accompanying MPEG-4 video of some kind. Over the past few years a relative new audio format, AAC, has risen from obscurity to be one of the most common standards in use today.
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