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2. High-Efficiency Advanced Audio Coding - Wikipedia

   en.wikipedia.org/wiki/High-Efficiency_Advanced...

   MPEG/3GPP Container.m4a ... that material decoded from 64 kbit/s HE-AAC does not quite have similar audio quality to material decoded from MP3 at 128 kbit/s using ...

3. Comparison of audio coding formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_audio_coding...

   For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint. First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs ...

4. 3GP and 3G2 - Wikipedia

   en.wikipedia.org/wiki/3GP_and_3G2

   3GP is defined in the ETSI 3GPP technical specification. [1] 3GP is a required file format for video and associated speech/audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast/Multicast Service (MBMS) and Transparent end-to-end Packet-switched Streaming Service ().

5. Comparison of video container formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_video...

   MP3: Lossy: 1991-12 Expired patents [87] Yes Yes MPEG-1 Audio Yes Yes [β] Yes Yes No No AC-3: Lossy: 1991-02 Expired patents Yes Yes [90] Yes Yes Yes Yes Private No No E-AC-3: Lossy: 2005-02 Patent encumbered QuickTime [γ] Yes Yes Yes No No No No No DTS: Lossy: 1993-06 Proprietary: Yes Yes No Yes Yes No Private No No WMA: Lossy: 1999-08 ...

6. Transcoding - Wikipedia

   en.wikipedia.org/wiki/Transcoding

   Transcoding is the direct digital-to-digital conversion of one encoding to another, [1] such as for video data files, audio files (e.g., MP3, WAV), or character encoding (e.g., UTF-8, ISO/IEC 8859).

7. List of audio conversion software - Wikipedia

   en.wikipedia.org/wiki/List_of_audio_conversion...

   An audio conversion app (also known as an audio converter) transcodes one audio file format into another; for example, from FLAC into MP3.It may allow selection of encoding parameters for each of the output file to optimize its quality and size.

8. Audio coding format - Wikipedia

   en.wikipedia.org/wiki/Audio_coding_format

   A notable exception is MP3 files, which are raw audio coding without a container format. De facto standards for adding metadata tags such as title and artist to MP3s, such as ID3 , are hacks which work by appending the tags to the MP3, and then relying on the MP3 player to recognize the chunk as malformed audio coding and therefore skip it.

9. Audio converter - Wikipedia

   en.wikipedia.org/wiki/Audio_converter

   M4A (MPEG-4 Audio): A compressed format often used with Apple devices, similar to MP3 but potentially offering higher quality at the same bitrate. FLAC (Free Lossless Audio Codec): A lossless compression format that maintains the original audio quality but creates files larger than MP3s. OGG Vorbis: An open-source, lossless compression format ...