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10.20.2010

Guide of MPEG 4 - How to Made the Video

With high compression ratio MPEG4, and little impact on quality, convert AVI to QuickTime Mac how to make a lot of players in the new century MPEG4 became common topic. Due to the ordinary users who have few DVD, here I talk about how VCD production into MPEG4. VCD into the benefits are MPEG4 can save more places. The test, double disc VCD is not damage the quality situation into single-dish MPEG4, while a 45 MB of MTV, if use 600 MPEG4 into the code rate and generate MPEG4 file is almost 5 MB, 8.4 compression ratio of The Times! If an image quality is again good, bitrate, choose the 910 after the file size is 16 megabytes. So the compression ratio, you can not move?

Readers in the conversion process before finding a VCDGear called the software.

Run the software, Video Converter for Mac select "DAT-MPEG" from menu "Extraction/Conversion", below the MPEG landuse-dat four options so we don't have to change. Then, click "LOAD", select the files from "Mpegav" folder on the disc, save the path window will pop up after conversion, and choose the file name and well preserved path, the end "start" click. (note: Set the "Priority" can change the conversion speed. More righter more faster, generally choose "Normal")

1. Audio settings

Now MPG1 documents, we can use VirtualDub 1.3 D to compress work. The encoding MPEG4 First we must be installed in front (i.e. articles MPEG4 DIVX Media Player mentioned the plugin) for the compression driver until after the Mac DVD Creator operation under all.

Virtualdub startup, choose the FILE menu Oper video FILE below ", "the video files to open, then in" Audio "menu" as the original below stream copy "choose" Full processing mode ", i.e. from the original source video files in the copy directly to the Audio Compression processing mode, then click "Audio Compression" in ", "choose Layer - 3, and MPEG choice on the right window, because DVD Ripper for Mac these parameters sampling frequency for directly affect the quality of Audio files MPEG4. In most cases, the choice KBit 96 average movie/s, Stereo, 12kb 44,100 speed can be a/s, but if you want to do is music or do you think this document MTV's voice, so great part of the corresponding high, but it will increase the size of the file MPEG4.

2. Video settings

Choose good, part audio Video "to" can be selected as the single "stream" Full "copy for processing mode", and then choose "Compression" to compress treatment options. In the selection window "DivX to mpeg-4 [Fast Motion - and then press" next Configure button appears bitrate Settings window. We can be in "Data Rate" choose bitrate, if you think you will make VCD, in order to not very good pictures on the lens of too much distortion, so you can choose the code Rate, can choose bigger to 1200. Remember, the choice is the main factor MPEG4 file size, so everyone in size and picture quality import DVD to iTunes Mac

Between measure, generally speaking, VCD, 910 enough, but if you are high quality images (such as DVD), also can choose 2000.

3. Start to convert

After finish choose code-rate, OK, Virtualdub back to the main interface, now you can generate MPEG4 documents, just choose "File" - "SAVE AVI", and choose a AVI" SAVE the path and started making a name, using MPEG4 coding AVI files. If you want to intercept clips, simply choose the starting point and end point to save. play AVI on Macbook

After making the process of playing MPEG4 sometimes appear voice and image is not synchronized, then we'll need a set of Virtualdub again.

Method 1 rip DVD to Mac

Application: the length of time the same AVI (Video) and WAV(Audio). to avoid the synthetic MP3 Audio may occur when the Video (A/V) synchronization problem specific Settings: Audio - > Interleaving... - > choose Interleave Audio every... Choose "ms".

Method 2

iMovie files to DVD Application: Due to the lost frame and bad frame in the disc conversion. The different length of AVI (Video) and WAV (Audio).

Objective: Adjust the Video`s Frame Rate will miss the Audio or Video Frame synchronization specific Settings: Video - > Frame Rate... - > choose "video and audio than both durations match".

If you fear their achievements, the water flows east pay can also take these two selected in production. download YouTube to iPad Mac