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2. 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 ().

3. Adaptive Multi-Rate audio codec - Wikipedia

   en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio...

   The Adaptive Multi-Rate (AMR, AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR is a multi-rate narrowband speech codec that encodes narrowband (200–3400 Hz) signals at variable bit rates ranging from 4.75 to 12.2 kbit/s with toll quality [ 3 ] speech starting at 7.4 kbit/s.

4. GSM 03.40 - Wikipedia

   en.wikipedia.org/wiki/GSM_03.40

   GSM 03.40 or 3GPP TS 23.040 is a mobile telephony standard describing the format of the Transfer Protocol Data Units (TPDU) part of the Short Message Transfer Protocol (SM-TP) used in the GSM networks to carry Short Messages. [1] This format is used throughout the whole transfer of the message in the GSM mobile network.

5. Comparison of audio coding formats - Wikipedia

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

   The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. 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.

6. Comparison of video converters - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_video_converters

   Video converter Converts without transcoding Batch convert Join files Converts audio files Converts photos Extract audio Preview Include effects Editing tools DVD burning Blu-ray burning Menu templates Splitting into chapters Converts online videos Subtitles support Upload to YouTube Variable frame rate inputs Any Video Converter: No: Yes: Yes ...

7. MPEG-4 Part 17 - Wikipedia

   en.wikipedia.org/wiki/MPEG-4_Part_17

   MPEG-4 Part 17, or MPEG-4 Timed Text (MP4TT), or MPEG-4 Streaming text format is the text-based subtitle format for MPEG-4, published as ISO/IEC 14496-17 in 2006. [1] It was developed in response to the need for a generic method for coding of text as one of the multimedia components within audiovisual presentations.

8. Comparison of video container formats - Wikipedia

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

   Attachments (additional files, such as fonts for subtitles) are only supported in Matroska, [41] MP4 and QTFF. M2TS supports attachments as multiple files in a specific file structure: fonts for subtitles are in .otf files in the /BDMV/AUXDATA/ directory. Interactive menus are only supported in MP4, QTFF, M2TS, EVO and DMF.

9. GSM 03.48 - Wikipedia

   en.wikipedia.org/wiki/GSM_03.48

   Secured packets contain application messages to which certain mechanisms according to GSM 03.48 have been applied. Application messages are commands or data exchanged between an application resident in or behind the GSM PLMN and on the Wapor MMS. [1] [2] [3] It is evolved to 3GPP TS 23.048 [4] in 3G. From Release 5, TS 23.048 is split into the ...