brief explanation for audio / video formats in general

There are various audio and video formats files in popular recently. Here we choose parts to introduce briefly:

Audio Playing Formats:

MP3: MPEG-3, the most popular audio file formats recently, with high compression ratio,compressed audio by 1:10 even 1:12,its sampling rate is 44KHz and bit rate is 12kbits;

WAV: to record wave of sound,if only with high sampling rate,long sampling byte and high speed,there will be a  sound with high quality ,but the file is oversized;

AAC: a way of digital audio compression,with some characteristic which MP3 have not as prefect stereo,bit rate effect scan,media controlling and decrease confusion etc.After compression,there remains perfect CD tone and compresses the files to 50%-30% compare to MP3;

MP3.AMR: the short name of Adaptive Multi-Rate audio Code.It can separate into AMR-NB(AMR NarrowBand) and AMR-WB(AMR Wideband) in term of video width.It is from CDMP3 files,but MP3 have more high compression rate.Recently,the format usually appears in the cellphone of NOKIA,SONY,ERICSSON systems;

OGG: Compression with harm,best timbre under low bit rate,either under high bit rate,but  the speed of code is a bit lower;

WMA: The short name of Window Media Audio, have two formats of compression with harm and compression without harm.The former is usual and the effect is better than MP3,the latter with high capability;

AC3: Multi-tract audio compression formats.It is usually used for DVD audio,and the timbre is very good.

Normal Video Playing Formats:

ASF: Full name is Advanced Streaming Format, a media file formats which is exploited for Windows 98 by Microsoft and its glossary can interchange WMA with WMV;

WMV: a stream format exploited by Microsoft,which is come from ASF(Advanced Stream Format)through updating.In the same video quality,WMV format is fit for playing and transmitting on line with small bulk;

MOV: Technical characteristic with cross platform and small storage.But the MOV format file with  harmful compression is better than AVI format in image effect;

MPEG: Full name is Moving Picture Experts.The MPEG compression standard  aims at the movement picture to design,and its basal way is---its  may realize compression between the frame,and its average compression ratio may reach 50: 1,the compression ratio is quite high and  has the unification format and good  compatibility.MPEG-1 applies in VCD widely.MPEG-4 is a kind of new compression algorithm, the compression ratio and the video quality is better, applies in DVD, HDTV, mobile and so on and high request video edit processing aspect;

DivX: The DivX format is a digital video decode(Codec) using the MPEG-4 technology.This file format compresses the high quality video to the video which enough to spread in the Internet,and thus satisfies the user's actual demand;

AVI(Audio Video Interleaved): Good compatible, transfer conveniently,and the picture quality is good, but the file volume is oversized, thus expedites the MPEG;

H.264 standard: Also calls MPEG-4 part10, " The high-level video codes", higher compression,better IP and compatibility of wireless network channel,numeral video communication and memory territory widespread application;

3GP: It is a kind of 3G media video code format,which is mainly for coordinating the high transmission speed of 3Gnetwork,and is also a common video format in the present cellphone;

FLV Flash Video: Not only may induct into Flash easily, several hundred movies by two seconds; Simultaneously also may broadcast through the rtmp agreement from the Flashcom server.

Flash Playing Formats:

GIF: Graphics Interchange Format.The processed compression graph format may process on each kind of platform and each kind of graph processing software,the file may manufacture the animation, but it only supports the images in 256 colors;

SWF: SWF is the vector graphic file format, the graph is expandable and has provided a ideal way which performs vector graph interactive animation  for sound Web;

JPEG: It is a image compression format set by Joint Photographic Experts Group,which supports extremely high compression ratio,and its size is usually less than the GIF's.

Get more information at: E.M. Total Video Converter.

Output Devices Supported

*iPod, iPod nano, iPod classic, iPod shuffle, iPod touch;

*iPhone, iPhone 3G, Apple TV

*Sony PSP, PS3

*Xbox 360

*General 3GP mobile phone, Nokia, Sony Ericsson, Motorola, BlackBerry, etc.

*General MP4 players: Archos, Creative Zen, Zune, iRiver, etc.

*Window Mobile device: Pocket PC, Smart Phone, PDA, Dell Axim X51, HP iPaq hw6500 series, etc.

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Total Video Converter supports reading the following file formats:

Convert Any Video Formats:

Convert video from Real Video Rmvb (.rm,.rmvb)  
Convert video from MPEG4 (.mp4)  
Convert video from 3gp (.3gp, 3g2)  
Convert video from Game Psp (.psp)
Convert video from MPEG1 (.mpg, mpeg)  
Convert video from MPEG2 PS (.mpg, mpeg, vob)  
Convert video from MPEG2 TS (DVB Transport Stream)  
Convert video from DIVX (.divx)  
Convert video from Ms ASF (.asf, .wmv)  
Convert video from Ms ASF (.asf, .wmv)  
Convert video from Ms AVI (.avi) 
Convert video from Macromedia Flash video FLV (.flv)  
Convert video from Apple Quicktime (.mov)  
Convert video from FLIC format (.fli, .flc)  
Convert video from Gif Animation (.gif)  
Convert video from DV (.dv)  
Convert video from Matroska (.mkv)  
Convert video from ogm (.ogm)  
Convert video from Video Formats Dx9 Directshow can open  



Convert Any Audio Formats:

Convert audio from CD audio (.cda)  
Convert audio from MPEG audio (mp3, mp2)  
Convert audio from Ms WAV (.wav)  
Convert audio from Ms WMA (.wma)  
Convert audio from Real Audio (.ra)  
Convert audio from OGG (.ogg)  
Convert audio from Amr audio (.amr)  
Convert audio from AC3 (.ac3)  
Convert audio from SUN AU format (.au)  
Convert audio from Macromedia Flash embedded audio (.swf)  
Convert audio from Audio Formats Dx9 Directshow can open  

Total Video Converter supports generating the following file formats:

Total Video Formats Converter:

Convert to MPEG4(.mp4) video
Convert to 3gp(.3gp, 3g2) video
Convert to Game Psp (.psp) video  
Convert to MPEG1 (.mpg, mpeg) video  
Convert to NTSC, PAL DVD mpeg and Burn video to DVD disc
Convert to NTSC, PAL SVCD mpeg and Burn video to SVCD disc 
Convert to NTSC, PAL VCD mpeg and Burn video to VCD disc
Convert to Ms Mpeg4 AVI (.avi) video  
Convert to Divx AVI (.avi) video  
Convert to Xvid AVI (.avi) video  
Convert to H264 AVI (.avi) video  
Convert to Mjpeg AVI (.avi) video  
Convert to HuffYUV AVI (.avi) video  
Convert to Swf Video (.swf) video  
Convert to Flv Video (.flv) video  
Convert to Gif Animation (.gif) video  
Convert to Mpeg4 Mov (.mov) video  
Convert to Apple Quicktime (.mov) video  
Convert to DV (.dv) video  
Convert to WMV (.wmv) video  
Convert to HD Mpeg TS (.ts) video  
Convert to ASF (.asf) video


Total Audio Formats Converter:

Convert to MPEG audio(mp3, mp2) audio   
Convert to Ms WAV (.wav) audio   
Convert to Ms WMA (.wma) audio   
Convert to OGG (.ogg) audio   
Convert to Amr audio (.amr) audio   
Convert to AC3 (.ac3 audio )  
Convert to SUN AU format (.au) audio   
Convert to m4a (mp4 audio) audio   
Convert to aac (aac audio) audio
Convert to mmf (mmf audio) audio
Convert to Flac (flac audio) audio

Get more information at: Total Video Converter.

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