1. How to convert online video or audio to MP3?
For youtube, M4A is always provided as the audio files. If you prefer MP3, you can use the free online MP3 converter here: MP3 Converter, this can help to convert any online video to mp3. You also can use VLC player to perform the converting as shown in "5" in this page.
2. What is an M4A file?
M4A is an audio-only MPEG-4 file. The official extension of MPEG-4 file is MP4 which contains both video and audio data, but when it only contains audio, then it uses the M4A file extension. M4A format is widely used by Apple for unprotected music downloaded from their iTunes Music Store (DRM protected music uses M4P extension). Audio within the m4a file extension is typically encoded with AAC lossy compression, though lossless ALAC may also be used. In general, compared with MP3, the quality of M4A is better and its file size is smaller than MP3 file.
3. What Players and Devices Can Open and Play A M4A File?
iPod, iPhone, iPad and other Apple devices; media players like Apple's own products iTunes, Quicktime; and some other limited M4A players also can play M4A files including Windows Media Player, 5KPlayer, VLC, Roxio Creator, KSP Sound Player, etc.
4. M4A vs MP3: Which One Is Better?
M4A vs MP3: M4A is generally regarded as the successor to MP3 but compared with MP3, M4A can compress audio with the same bit rate in smaller file size. M4A format files typically have stereo bit rate of 128kbps, 192 kbps or 256kbps. By the way, Bit rate is the amount of data that is conveyed per unit of time.
In the aspect of quality, an M4A file with ALAC codec has the best original sound quality. Even M4A (AAC) delivers better quality than MP3 audio at the same bit rate. As for the file size, it is also related to the bit rate, the larger bit rate, the larger file size, the better sound quality. To put it another way, if you try to get the same sound quality, you need 256kbps bit rate when encoding with MP3 while only need 192kbps with M4A, as a result, you'll get a much smaller audio file size with M4A. However, MP3 is still the most popular audio format thanks to its much better compatibility.
It's arbitrary to say that M4A is better than MP3, choosing which audio format still depends on your own needs.
5. How to Convert M4A files to MP3’s with free Media Player such as VLC?
For files with big size, the MP3 Converter of DistillVideo may not support, then you can do it with the help of media players. It can be easily performed with the free media player such VLC. If you don’t have VLC Player you can download it here: VLC
Step 1: Click on Media to open the menu. Click on the Convert/Save… from the menu
Step 2: The Open Media dialog box will appear. Click on the File tab. Click on the Add button. Locate the file (.m4a) you wish to convert and select it. Click on the Open button to add the file.
Step 3: You will be brought back to the Open Media dialog box, make sure that the file you selected is listed as highlighted above. Click on the Convert/Save button.
Step 4: The Convert dialog box will open. Click on Browse to designate a destination for the converted file.
Step 5: Locate a place to store the converted file, name the file by entering the information in the File name text box.
When naming the file, you need to specify the format you wish to convert it to. So if you are converting to MP3 make sure that the file name is followed by .mp3
Step 6: Click on Save when you are ready. You will return to the Convert dialog box. Make sure the Audio -MP3 Profile is selected from the drop-down menu. Click on Start to begin the conversion process.
Note: Depending on the size of the file to convert, conversion can take seconds to a couple of minutes. Once conversion is completed locate the directory that you designated to store the file and the converted file should be there.
6. What is 2K, 4K, 8K video resolution?
4K is a new resolution standard designed for digital cinema and computer graphics. It has following advantages: higher image definition quality, more detailed picture, better fast-action and larger projection surface visibility.
4K format was named because it has 4000 pixels horizontal resolution approximately. Meanwhile, standard 1080p and 720p resolutions were named because of its vertical resolution. The new standard renders more than four times higher image definition than 1080p resolutions for example.
This format can't have the change in horizontal resolution, so changes in aspect are made through the vertical resolution. For example 4096×2304 is a frame size with aspect 16:9 and 4096×3072 — 4:3. The digital video resolutions examples:
|Full Aperture 4k||4096 x 3112||12,746,752 pixels|
|Academy 4k||3656 x 2664||9,739,584 pixels|
|Digital Cinema 4k||4096 x 1714||7,020,544 pixels|
|Digital Cinema Aperture 4k||3996 x 2160||8,631,360 pixels|
2k,6k and 8K follows the same logic. Now YouTube enables 2k, 4k, 6k and 8k video support. Today, 8k is the highest resolution format available for consumers and it has great potential! It's quite possible that the demand for this format will increase in near future, specially by digital video data delivery services.