Youtube FLV Specification

Posted on 2009-04-19
Last Modified: 2013-12-07

do FLV files on YouTube allways contain mp3 or are there other formats possible? Is there any specification availabe for youtube or flash video?

Question by:Ocrana
    LVL 22

    Expert Comment

    Flash uses Mp3 as its audio. The resolution is 320 x 240 (which they blow up);  there's also HD resolution -- just read YouTube's definition of this. or Google YouTube High Definition. YouTube also often uses mono sound, so if you want to upload stereo you should upload in H.264 or MPEG-2. You might also try wmv. Don't convert to flash to upload to YouTube, this is a wast of time and usually not successfull as YouTube completely recodes your video.
    LVL 69

    Accepted Solution

    FLV youtube video contain different bitrates of audio The main emphasis is in video so the better quality video the better quality the audio aspect.
    As you may know the youtube videos sources are from users that have created their own videos and uploaded them to Youtube.
    Therefor the audio formats may vary and it depends what bitrate they were posted at.
    Youtube hosts it's own Help section how to do just about anything.
    But this is a good example
    Creating Videos For YouTube
    To get you started read this
    Format and quality comparison table
    File formats
    Youtube: how to get stereo sound and high quality video

    Author Closing Comment

    exact that what I needed

    Featured Post

    Give your grad a cloud of their own!

    With up to 8TB of storage, give your favorite graduate their own personal cloud to centralize all their photos, videos and music in one safe place. They can save, sync and share all their stuff, and automatic photo backup helps free up space on their smartphone and tablet.

    Join & Write a Comment

    Suggested Solutions

    I have been fiddling with (oops, I mean evaluating) media players for over a year now.  I purchased a D-Link DSM-520 about a year ago and was pleased with how many file formats It could play, but I found the user interface to be on the clunky side. …
    Are you looking to clear some space on your phone for the latest iOS 8 update? Did you switch to Spotify so you no longer need to keep music native on your phone? Run out of space for taking photos while in the middle of vacation? Sometimes the quic…
    Viewers will learn how to create and use Simpler instruments in Ableton Live. Load new Simpler into an empty MIDI track: Select a sample and drop it into sample window in Simpler: If sample is not pitched at C3, adjust tuning with Transpose para…
    Viewers will learn how to use Macros for greater control over Rack parameters in Ableton Live. Group devices into a Rack by selecting them and pressing Command-G (Ctrl-G on PC): Control-click (Right Click on PC) a parameter to access pop-up menu, …

    733 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    22 Experts available now in Live!

    Get 1:1 Help Now