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Video Transcoding |
Video transcoding is an essential part of the process of recording media. It converts analog signals into digital ones, converting them from analog waveforms to digital ones. Basically, it is the "digital to analog conversion" of one analog signal to another, for instance, for video data files. There are basically two methods for transcoding, namely PCA and ACD, each with their own advantages and disadvantages.
PCA stands for "Pulse-code modulation", which is a digital representation of analog signals, which were the original analog signals sent back then. ACD stands for "additional channel channels", which is the modern term for VGA output and input. Both PCA and ACD have their own drawbacks and advantages, so the choice usually depends on the type of multimedia project that needs to be converted. ACD is more appropriate for low resolution, high volume, and fast delivery, but PCA can fit the same file in smaller packages, for higher definition, more channels, faster delivery and better quality. The number of devices is determined by the file size and the intended target audience.
Streaming Media, such as HLS and HDTV, require a bitrate and a container format that meets their requirements. The most common bitrate for streaming media is 3000 kbps, which is equivalent to the bitrate used by DVD. A container format defines the boundaries of the file, and it is encrypted before being formatted, to provide security and compatibility. Both HLS and HDTV support advanced features like HDCP, HEVC, and VP9, and they can be viewed on a wide variety of internet-connected devices.
Encoders play back the video on different device types, like a mobile phone. For instance, in October 2021, a shared media storage solutions provider firm in the U.S., Studio Network Solutions (SNS), introduced ProRes Transcoding to enhance remote and on-premise collaboration for movie production teams. In order to stream a
video transcoding file to a TV, the encoder must be written to a HDTV tuner. It is very important that the encoder used is compatible with the device users’ intend to stream it to. Video transcoding tools vary in capability, and users should test them to make sure they can handle the complexity of the project they are planning.
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