2011年5月31日星期二

Comparison of 3gpp, 3GPP2, 3GP and MP4

3gpp is for GSM phones, with the extension .3 gp. Third Generation Partnership Project (3rdGenerationPartnershipProject, ie 3GPP) is established in December 1998 of the standardization bodies. Its members now include Europe, ETSI, ARIB in Japan and the TTC, China, CCSA, TTA in Korea and North America ATIS. The goal of 3GPP is the ITU IMT-2000 within the scope of the development and global in nature (third generation) mobile phone system specification. Its commitment to GSM to UMTS (WCDMA) evolution of GSM to WCDMA air interface, although very different, but the GPRS core network using the framework, it remains continuity.

3GPP2 is for CDMA phones, with the extension .3 g2. Third Generation Partnership Project 2 (3rdGenerationPartnershipProject2, or 3GPP2) was established in December 1998, members include: TIA (North America), CCSA (China), ARIB / TTC (Japan) and TTA (South Korea). 3GPP2 committed to the ITU's IMT-2000 plan (3G) mobile phone system specification development in the world, in fact it's CDMAOne from 2G IS-95 or CDMA2000 standard system developed from the standardization bodies, it has been a number of key technology patents, Qualcomm CDMA's more support. 3GPP and 3GPP2 in fact there is a certain competition between the two, 3GPP2 committed to IS-95 (widely used in North America and South Korea's CDMA standard, is compatible with China Unicom CDMA) to 3G, and Qualcomm closer together.

3GPP corresponding commitment from the GSM to WCDMA (UMTS) transition, so the two bodies there is a certain competition. 3gp-how to make and market a number of plays 3GP files player installed Realplay smart phone can play rm file suffix, so that, in the smart phone in rm format video to see some nature is not difficult. However, smart phones are in the minority, most of the mobile phone does not support rm format video, to the realization of video playback on those phones, you must use a video format called 3GP. There are many mobile phones with camera functions, film are in fact out of the video file to 3GP suffix, such as the Nokia 6230, Motorola V600, and Alcatel.

3GP format video using MPEG-4 and H.263 encoding, and AAC or AMR audio standard is applied. H.263 is the International Telecommunication Union (ITU) video coding algorithm proposed standard. It is proposed in order to solve the narrow-band video conferencing video compression issues. The bandwidth is mainly for very low bit rate (less than 64Kbps). The high-bandwidth, high-quality video compression is not in the standard coverage. MPEG-4 of the main applications of the Internet and wireless transmission, interactive television, compared with other standards, MPEG-4 has the following advantages: 1) high compression rate: either with the same family of MPEG1 and MPEG2 video compression algorithm, compared or with the ITU's H.261, H.263 algorithm is compared, MPEG4 video data compression algorithm to rate the clear edge. This is effective in saving precious bandwidth video conferencing resources have a huge advantage. 2) The ability to adapt to different bandwidth: MPEG4 can be applied not only in the narrow band (bandwidth of less than 64Kbps), but also the flexibility to extend to high-quality, high-definition on broadband. This ensures that meet the needs of different users. Users according to their actual situation, set the appropriate bandwidth, so as to achieve the best effect of video conferencing.

3GP Video Converter

3GP Converter can be used to purchase or download. These programs allow users to convert 3GP formats into other file formats, such as: MPEG AVI, MP4 or 3gp videos to
WMV files. With 3GP converter, the large files such as video and DVD files can be played on mobile devices. Many of these projects can be found online through search engines. Use 3GP converter, you can convert DVD or video file format to those used by mobile phones. 3GP player can also buy or download programs that allow a viewer of the video from their mobile phone on their computer monitor. This makes the true versatility, it can simultaneously record video and the reviews, then their privacy, their own homes.

3GP is a simplified version of MP4 format, reducing storage space and lower bandwidth requirements, so that limited storage space on mobile phone can be used. 3GP stores have multiple types of video files (MPEG-4 Part 2, H.263-based devices, MPEG-410 in part) and a variety of audio file formats (AMR technology, laptop, support for AAC-LC, AMR-WB, and AMR-WB +). 3GP file transfer always occurs in a specific order: the largest and most significant bytes of information is always transferred first.

4Media 3gp converter is available for download. If people are interested to play 3GP file in Windows MediaPlayer, because WindowsMediaPlayer can't convert, you can install this program that can read any video format and 3GP format files. The programs allow users to watch videos using existing media player by converting videos and dvd to 3pg or convert 3gp to other video or audio formats such as MOV, M4V, MP4, AVI, FLV, OGG, WAV, AC3 etc.



More 3GP video converters:
DVD to 3GP Converter

DVD to PS3 Converter

PSP Video Converter

How to make 3GP videos

Although compared to some of the common video file, 3GP needs very small share of the memory, but memory limitations of mobile phones made them not suitable for storage of a long time the film. So select the movie makers to pay special attention when, if it is the common length of 4-5 minutes of MTV (Music Television) video compression can be assured; If you want to intercept the movie clips you will need the aid of other tools, such as the Windows Moive Maker simple editing.

Throughout the production process, first download the video files are usually converted to 3GP format tools, such as recommended by Nokia NOKIA multimedia converter Pro V2.0, which is specially prepared to suppress the Nokia tools can AVI, MPG and other formats convert video files directly to mobile phone 3GP files can be viewed. Download the press steps to install. After installation, double-click the file to open the main interface MMConverterPro.exe.

The top of the interface, Video and Audio are two buttons, when clicked, respectively into the respective interface. Video interface, which is the subject of this article, the user can here all kinds of video files into formats suitable for mobile phones to play 3GP. As for the Audio, the interface definition is the production of music, the user can in this mp3 file into your computer for commonly used to send and store MMS AMR format. Also, this method can also be made through the AMR format, real ring tones.

3GP is a MPEG-4 Part 14 (MP4) a simplified version, reducing storage space and lower bandwidth requirements, so that limited storage space on mobile phone use. Part of 3GP video files can be MPEG-4 Part 2, H.263 or MPEG-4 Part 10 (AVC/H.264) and other formats to store the sound part of the support AMR-NB, AMR-WB, AMR -WB +, AAC-LC or HE-AAC to as the voice encoding. 3GP files have now two different criteria.

What is 3GP

3GP is a 3G streaming video encoding formats, enabling users to send large amounts of data to the mobile phone network, so clear large files such as audio, video and data network cell phone. 3GP is a simplified version of MP4 format, reducing storage space and lower bandwidth requirements, so that limited storage space on mobile phone use....



3GP is a collaborative partner in a group of telecommunications of the 3GPP (Third Generation Partnership Project). The group's purpose is to maintain and approved by the Global Telecommunication System, based on the GSM network and wireless access technology. The organization of 3GP aims to establish a global mobile network, users can access the mobile computing anywhere in the world. Their goal is to build a core network to provide global services, mobile phone users via the Internet.