(Advanced users' note: you may use a different working directory as long as you supply the full path and file name for the ac3 file. You'll only provide the names of the ac3 files, not the full paths, since you should have changed to the directory which contains them. You can specify one or more individual ac3 files, or just use *.ac3 to convert them all. Microsoft Windows 2000 (C) Copyright 1985-2000 Microsoft Corp. Now you'll need to change to the drive and directory containing your ac3 file (the text below gives examples of how to do that I've typed the part after each "X:\path>"): Windows tip: you can copy text from below, then paste it into your command prompt by clicking the icon at the top-left of the window, and choosing "Edit" then "Paste" (this is in Windows 2000 I'm sure other Windows systems are similar). Grab a command prompt by clicking "Start", "Programs", "Accessories", "Command Prompt" (I'll continue with Windows examples, and assume that Linux users can translate easily enough). Grab the utility posted below (spdifconvert.py) and get it set up (there are instructions later). Now you'll need to convert the ac3 file into a format suitable for streaming over the SB2's digital output. The most common problem is probably with region-coding, if you've bought a DVD intended for a different global territory than your drive is configured for.) (If you have problems with this, I recommend you seek out a guide for your ripping software. If all goes well, you'll end up with an ac3 file in that location, which you'll probably want to rename to something suitable. From the choices on the right, be sure to choose "Demux to extra file" this is important! Choose an output directory at the bottom of the screen, then click "Start". (You'll find it hard to test the later stages if you've ripped a few seconds of silence!) Don't worry about the Cells list.įrom the Stream Processing tab, click "none" to uncheck all the streams, then tick the stream containing the surround mix – it's probably labelled "Audio English AC3(6Ch) 48kHz", and is often stream 0x80 or thereabouts. Note that some albums may have a very short chapter at the start check the track length and pick the first chapter that looks right. Click the "none" button beside the Chapters list, then tick a chapter to be extracted. You'll see a list of chapters to the right if you click each one in turn, the chapter information below will show you its length, which you should be able to use as a guide to picking the right song (assuming you know the track running times). Choose a Program Chain similarly, and then Angle 1. Under the Input tab find the largest Title, which is likely to be the one containing the body of the album (other titles may exist for the menus, for extra features, etc). SmartRipper example: use rip method "Movie". In brief, you need to demultiplex the ac3 soundtrack into a separate file (with extension 'ac3' if you get a 'vob' it's not quite unpacked). There are lots of guides available on the Web for using various DVD ripping software I'll give a brief example using SmartRipper (for Windows) which I hope will be enough to give the general idea. SLIMP3 is not supported.įirst you'll need to obtain an AC3 file from your DVD. (We don't do any decoding ourselves we simply pass the encoded data through to the receiver for decoding.) SB1 is not supported, although it could be with a small amount of work (more later). You'll need a SqueezeBox2 or SqueezeBox3 (I'll refer to them both as SB2), with a digital connection to a receiver which can decode Dolby Digital or DTS. This guide DOES NOT cover ripping of the DVD-Audio layer I have no idea how to go about that, or if it's even possible. The fidelity is not as high as the DVD-Audio layer, but certainly suffices for most of us. Many DVD-Audio discs are released with a DVD-Video layer which is recognised by normal DVD players, with the audio encoded as AC3 or DTS. You can of course use this information to play back extracts from a film's audio track, but it's more likely that you'll want to play back an album which has been remixed to 6 channels. I'll explain here how to get that working. The SB2 is capable of playing these formats by passing a slightly modified form of the digital data through to a suitable receiver. Multichannel audio on a DVD-Video uses the Dolby Digital (henceforth called AC3) and DTS formats, with a frequency of 48000Hz (compared to CDs which use 44100Hz). 1.6 The spdifconvert.py (version 0.4) Utility.
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