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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. 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.

  4. 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.

  5. Multimedia Broadcast Multicast Service - Wikipedia

    en.wikipedia.org/wiki/Multimedia_Broadcast...

    The Download Delivery Method is intended for “download and play” services. A File Repair service may be offered to compensate for unreliable delivery. MBMS has been standardized in various groups of 3GPP (Third Generation Partnership Project), and the first phase standards are found in UMTS release 6. As Release 6 was functionally frozen by ...

  6. 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.

  7. 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.

  8. RetroCode - Wikipedia

    en.wikipedia.org/wiki/RetroCode

    RetroCode is a universal mobile content converter originally created by Retro Ringtones LLC. RetroCode is able to read and write most common sample-based ringtone formats including meta-data . Overview

  9. H.263 - Wikipedia

    en.wikipedia.org/wiki/H.263

    H.263 is a required video coding format in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS) and Transparent end-to-end Packet-switched Streaming Service (PSS). [5] [6] [7] In 3GPP specifications, H.263 video is usually used in 3GP container format.

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