3GPP to AAC
Convert 3GPP to AAC, 3GPP to AAC Converter
3GPP to AAC software converts 3GPP to AAC. The software is an ALL-IN-ONE audio converter that supports more than 90 audio and video files.
3GPP to AAC software supports batch conversion and is full compatible with Vista and Windows 7.
What is 3GPP?
3GP is defined in ETSI 3GPP technical specification. 3GP is 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) and Transparent end-to-end Packet-switched Streaming Service (PSS).
The 3GP file format stores video streams as MPEG-4 Part 2 or H.263 or MPEG-4 Part 10 (AVC/H.264), and audio streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC, HE-AAC v1 or Enhanced aacPlus (HE-AAC v2). 3GPP allowed use of AMR and H.263 codecs in the ISO base media file format (MPEG-4 Part 12), because 3GPP specified the usage of the Sample Entry and template fields in the ISO base media file format as well as defining new boxes to which codecs refer. These extensions was registered by the registration authority for code-points in ISO base media file format ("MP4 Family" files). For the storage of MPEG-4 media specific information in 3GP files, the 3GP specification refers to MP4 and the AVC file format, which are also based on the ISO base media file format. The MP4 and the AVC file format specifications described usage of MPEG-4 content in the ISO base media file format.
What is AAC?
AAC has been standardized by ISO and IEC, as part of the MPEG-2 & MPEG-4 specifications. The MPEG-2 standard contains several audio coding methods, including the MP3 coding scheme. AAC is able to include 48 full-bandwidth (up to 96 kHz) audio channels in one stream plus 15 low frequency enhancement (LFE, limited to 120 Hz) channels and up to 15 data streams. AAC is able to achieve indistinguishable audio quality at data rates of 320 kbit/s (64kbit/s/channel) for five channels. The quality is close to CD also at 96 kbit/s (48kbit/s/channel) for stereo.
AAC's best known use is as the default audio format of Apple's iPhone, iPod, iTunes, and the format used for all iTunes Store audio (with extensions for proprietary digital rights management).
AAC is also the standard audio format for Sony's PlayStation 3 and is supported by Sony's Playstation Portable, latest generation of Sony Walkman, Sony Ericsson Walkman Phone, Nintendo's Wii (with the Photo Channel 1.1 update installed for Wii consoles purchased before late 2007) and the MPEG-4 video standard. HE-AAC is part of digital radio standards like DAB+ and Digital Radio Mondiale.
Convert 3GPP to AAC Related Topics: M1V to AAC, MJ2 to AAC, MKA to AAC, MPGA to AAC, MTS to AAC, MTV to AAC, MVI to AAC, MXF to AAC, NUV to AAC, OGX to AAC, QT to AAC, ROQ to AAC, RPL to AAC, SDP to AAC, SHN to AAC, SMK to AAC, SOL to AAC, VFW to AAC, VID to AAC, VMD to AAC, VQF to AAC, WAVE64 to AAC, WM to AAC, XA to AAC, 3GP to AAC, ASF to AAC, AU to AAC, CDA to AAC, M4V to AAC, MO3 to AAC, MOD to AAC, S3M to AAC, SND to AAC, SPX to AAC, WMA to AAC, WMV to AAC, WV to AAC, DVR-MS to AAC, EVOB to AAC, FLV to AAC, M2V to AAC, MKV to AAC, MMF to AAC, NSA to AAC, NSV to AAC
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