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Audio Video Interleave (AVI) is a multimedia container format introduced by Microsoft as part of its Video for Windows (VFW) technology. AVI files can hold both audio and video data in a file container that allows synchronous audio-with-video playback. AVI files support multiple streaming audio and video such as the DVD video format. AVI is a common format for audio/video on the PC and can be supported by some standalone DVD players. It is not ideal for use as a general purpose container.

To play an AVI file on Windows the type of decoder on the computer must be determined to portray the video. AVI files consist of a property called a FourCC, which has four letters, based on the kind of encoding used. VFW decoders then register particular FourCCs with Windows, letting it know that they can decode video in those formats

AVI files can be created with no compression, resulting in extremely large file sizes, but with no loss of quality from the input video to the saved file. This also requires no codecs to be installed, either for saving or playback; as such it is advised to use a Lossless Compression format instead.

AVI files can be easily converted to DVD with the use of convertor programs available on the internet. One example is the Avi2DVD which is a graphic user interface that uses freeware tools and various freeware encoders or CCE to perform conversions. Other types of convertors are Convert Genius, Adobe Premier, Nero, and Pinnacle.

Things You Will Need

Computer with memory capacity for software download

AVI to DVD convertor

Internet access

AVI files

Instructions

1.Prepare the AVI files that are to be converted to DVD – create a folder for the files and place them there.

2.Download the conversion software to the PC and install it.

3.Once installation is complete, launch the program and follow the instructions for converting your files.

4.Save converted files in another folder for easy reference.

Dos and Don’ts

Ensure the conversion software selected can facilitate all elements of the AVI you wish to convert. case in point the conversion of still pictures is not supported by all convertors.

Select a convertor that fits in with your requirements (features, price etc) and is still easy operate.

Ensure the converted video can play in a DVD player as well as on the computer.

http://www.howtodothings.com/computers/a3373-how-to-convert-avi-to-dvd.html

http://www.afterdawn.com/glossary/terms/avi.cfm

CDA which stands for CD Audio, is not an audio file format like MP3 or WMV. Rather, when an OS detects an Audio CD, it reads the basic information written to the CD, including the number of tracks, CD Text if available, total duration etc. To access the audio tracks, it also creates CDA labels, though the labels are not real files and are impossible to copy by selecting and dragging them. So to convert CDA to MP3, you will be required to rip your Audio CD, as CDA labels cannot be converted at all, as they contain no audio information.

Things you will need

AudioConverter Studio

Instructions

Download and install AudioConverter Studio to a known location on your computer. Run setup and follow the on-screen instructions to install the software.

Insert the Audio CD that you would like to convert to MP3. launch AudioConverter Studio. When the Wizard shows up select ‘Rip an Audio CD’ and then select ‘next.’

AudioConverter Studio offers the option to set output folder (1) and filename format (2). Use any folder on your computer; the filename format option will allow you to set a pattern for filename and folder names. That is your converted files can have user friendly names and sorted by folders according to artists, album name, etc. The information for filenames and folder names will be taken from CDDB, of from CD Text if present. Select ‘Next.’

Another wizard page will appear; here, specify MP3 file as the output format, setting your specified MP3 bit rate as well. Note that they ‘prelisten conversion’ box, if checked, will make the program convert only a few seconds of each track. To convert full tracks, ensure that option is kept unchecked.

When the last page of the wizard pops up check all settings again, and if everything is OK, click ‘finish’ to rip the Audio CD. The converted MP3 will be found in the folder you specified before.

Do’s

Remember that the trial version of AudioConverter Studio is fully functional for 30 says of the evaluation period. Beyond that time, you must pay for it to use it.

Source

Mymusictools.com

MPEG-4 Part 14 or MP4 file format, or as it is formally refered to ISO/IEC 14496-14:2003, is a multimedia container format standard designated as a part of MPEG-4. It is prevalently used to store digital video and digital audio streams, specifically those defined by MPEG, but can also be employed to store other data such as subtitles and still images.

MPEG-1 Audio Layer 3, or MP3 as it is typically called, is a patented digital audio encoding format which uses a form of lossy data compression. It is a widely used audio format for regular audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music using digital audio players.

There are instances when converting MP4 to MP3 may be prudent, especially if you are using a digital audio player that does not allow MP4 playback. To convert from MP3 to MP4 you may either choose to buy software that can do this conversion easily, you may also use free software that can be downloaded from the internet or you may use iTunes to perform this function. When using iTunes you will maintain more control over the conversion as it will allow you to set the bit rate and overall sound quality. Below are a list of instructions that will help you to convert from MP4 to MP3 using iTunes.

1.Open the iTunes application.

2.At iTunes, select the song you would like to convert.

3.Go to your iTunes menu bar, select Preferences, alternatively you can press ‘Command’ and ‘comma’ keys, i.e. “⌘,”

4. At the Preferences window, select the ‘Advanced’ option:

5.At the ‘Advanced’ section, click on the button that says ‘Importing’ and then where it says ‘Import Using’, choose ‘MP3 Encoder’

6.Under Settings, choose ‘Custom’, you can choose any of the options there, but ‘Custom’ settings ensures you set the right bit rate.

7.If you’ve selected ‘Custom’, you will see ta window pop up; ensure that your Stereo Bit Rate and Sample Rate are to your desired settings, it is best to use a setting of 44.1 kHz for the best audio quality. If you are uncertain about custom settings then use the default settings.

8.Close the Preferences window; h before doing so ensure you have checked the correct song.

9.At the iTunes menu, select Advanced -> Convert Selection to MP3 and the conversion would start.

10.Once iTunes has completed the conversion, you will see two songs of the same title.

11.To confirm, select that song title and press the ‘⌘’ and ‘i’ keys to view the file information, and you should see a new window with the file details.

In the 1990s, the AVI and WMV formats were introduced by Microsoft. Since then both formats have been staples for computer worldwide AVI which is the abbreciation for Audio Video Interleave, was introduced in the year 1992 and is technically known as a container format. being a container format, AVI can include both video and audio while allowing synchronous playback. AVI files are found online as music videos, television programs, streaming videos and even full length motion pictures. On the other hand, WMV stands for Windows Media Video and was developed by Microsoft specifically for streaming. However, WMV can also be saved to a hard drive or disk media for playback with Windows Media Player and other typed of players such as Winamp, DivX and VLC player. The file formats are popular for two reasons, first, they are easily played in media players like Windows Media Player, that come equipped with the Windows operating system. second, they are easily compressed and can be uploaded, downloaded or streamed on the internet. The process of converting AVI file formats to WMV file formats is relatively easy and it only requires conversion software.

Things you will need

Conversion Software

Instructions

Install and Open conversion software on your computer to convert either an AVI or WMV file.

Select the type of conversion that you would like to achieve.

Load the AVI source file that you want to convert to WMV. Usually the software will prompt you to browse of quickly choose the file from a folder on your computer. A lot of applications will also allow you to drag and drop source files into the application window.

Name the destination file and make certain that it is saved in a specific directory.

Once you’ve completed steps 1 to four, you may choose between additional features. Each application will have its own features, so before using the software, quickly look at the bells and whistles that the software offers.

Once you have made all your selections, you may start the conversion process. The process should take between a minute to over an hour depending on the file size, the conversion specifics and the computer configuration.

When the conversion process is completed the software will notify you. You will get an error message at the moment the error took place if a problem occurs. launch the media player of your choice and confirm that the file has been converted correctly.

Do’s

Be careful to select the correct | the relevant | the right} audio and video codecs; WMA for audio and WMV8/9 for a video are the right} video size; usually the original size.

Also, the best choice.

Be careful to choose the right video size; usually the original size.

Also, ensure you choose the {right | correct | relevant} bit rate; for decent quality, use at least 128 kbit/s for audio and 768 kbit/s for video.

Keep the frames per second the same as the source file.