![]() This is actually a 5.1-channel format with the back surround audio channel matrixed into those of the right and left surround. ![]() The same amount of audio encoded in Dolby Digital technology will use less disc space than if it was encoded in DTS. DTS audio data is not as compressed as Dolby Digital technology. Each of the 5.1 channels of decoded 20 bit DTS audio is superior to the linear 16 bit PCM audio used for conventional compact discs. This is an encode/decode system that delivers 6 discrete channels (5.1) of high quality 20 bit audio. Dolby Digital technology is commonly referred to as 5.1 (five point one) surround sound because it contains 5 full bandwidth (20 - 20,000 Hz) for the front, center and rear speakers, and one low frequency effects (LFE) subwoofer channel that is referred to as. This is a multi-channel surround system that contains 6 discrete channels of audio (left front, right front, center, left rear, right rear and LFE subwoofer). Processes the standard four channel Dolby ProLogic technology signal to reproduce 5.1 channel surround. This matrix multi-channel sound is encoded down to two channels for distribution, and then is decoded back to four channels when played back on a stereo source that decodes Dolby ProLogic technology surround. This consists of four discrete channels of audio (left, right, center and rear). Different surround sound types encode and decode this audio differently. mkv files with PerianĮdit Library/Preferences/.ist and add a video/x-matroska child to WebPluginMIMETypes (the easiest way is to duplicate an existing entry), making sure to set the mkv extension inside WebPluginExtensions.Surround sound consists of multi-channel audio. Mkvmerge -o output.mkv output.mp4 output.wavĮxactly the same principle can be applied for remuxing into multi-track MP4 envelopes. Mencoder input.m2ts -of rawaudio -o output.wav -oac copy -ovc frameno ![]() Here’s a crash course on how demux the video and audio streams using mencoder and remux them (this becomes insanely complex when dealing with subtitles and specific audio streams, but friends have been using a variation of this to deal with their AVCHD camcorders): mencoder input.m2ts -of rawvideo -ovc copy -o output.mp4 -nosound DCMAKE_INSTALL_PREFIX:STRING="/opt/local/"Ĭonverting an MPEG transport stream to. The reciprocal WAV to “AC3”:Wikipedia:AC3 encoder, which requires cmake from MacPorts to build. “ DTS”:Wikipedia:DTS to WAV converter, also available in MacPorts Most of the dependencies (linked below) can be trivially gotten off MacPorts. Resources: DateĪ bash script ( local copy) that makes it easier to quickly convert “ DTS”:Wikipedia:DTS audio tracks into “AC3”:Wikipedia:AC3 for payback in devices such as some LG TV sets and the Apple TV. Plus it’s trivially remuxed into straight-up MP4 for the Apple TV as needed. The “Matroska”:Wikipedia:Matroska container has been gaining enough momentum over the past few years for me to consider using it as both a long-term archival format and a flexible way to rip my DVD collection into some kind of appliance that is kid-resistant (there’s nothing worse for CDs or DVDs than an insistent toddler who wants to hear/see something for the umpteenth time – neither media is truly scratch-proof, let alone kid-proof).Īlso, it allows for multiple audio and subtitle streams, so I can watch stuff in native audio without subtitles if I wish to but have those options available for the kids and not waste time and storage doing duplicate rips.
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