Closed Captions

Closed captioning is the process of displaying text on a television, video screen or other visual display to provide additional or interpretive information to individuals who wish to access it. Closed captions typically show a transcription of the audio portion of a program as it occurs, either verbatim or in edited form.  Occasionally closed captioning Read more

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How can I correct audio sync issues?

You can easily correct audio sync issues by setting the audio_sync tag in your XML, as follows:  This works by adjusting the output audio stream to match the source timestamps, in # of samples per second. Consider this a great for fixing sync when source is variable framerate, or has timescale problems. The most common Read more

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DRM (Digital Rights Management)

Digital rights management (DRM) is a term for access control technologies that are used by hardware manufacturers, publishers, copyright holders and individuals to limit the use of digital content and devices. The term is used to describe any technology that inhibits the use of digital content that is not desired or intended by the content Read more

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How can I add a watermark with an alpha channel?

Use a PNG with alpha-channel as Logo source. If your logo source is PNG with alpha-channel, set logo_mode equal to 1, to keep transparency. Note: the logo_transparent tag is only for usage with the vp6_flix output via XML. Example XML:

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How can I copy audio in my encodes?

If you specify the audio_codec tag to equal 'copy', the options audio_channels_number, audio_sample_rate, audio_bitrate will be ignored and their values will be copied from your source file. Example:

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Wowza + Encoding.com = Problem solved!

Preparing videos for use with the Wowza Media Server can be accomplished very simply using one of the Wowza Presets on Encoding.com.  Choose a Preset, set a destination location for output files and you're off and running.  You can send output files to any location but most likely you'll want to send them directly to Read more

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