LeeBorkman Wrote: > I was inspired by your article to try converting my own copy of the same > music from multi-channel ac3 into something that my SB3 could deal with. > Unfortunately, I could not get an uncorrupted copy of spdifconvert.zip > from the forum, so I decided to try another (hopefully simpler) route. > It didn't work, however, so possibly you can point me in some other > direction... Hi Lee!
I don't know why, but there have been problems with the zip file; it was re-posted later in the guide by chrisal, who constructed the zip file differently, and it seems to be more accessible to some people: http://forums.slimdevices.com/showpost.php?p=74188&postcount=17 If that doesn't work for you, I'd be happy to send it to you; email me if you'd like that. > All I did was load my 6-channel AC3 file into foobar2000, and convert > directly to 6-channel FLAC. Easy enough, and fast as fast. I checked > the resulting FLACs, and they are great, play back beautifully through > Foobar2000, though rather large, as you would expect. Fight Test, for > example, is a 76Meg FLAC from a 14Meg AC3. > > So now I scan the FLACs into my slimserver library, no problems. The > trouble comes when I try to *play* them. I get "Ran out of decoder > data memory" on my SB3 screen, then the screen craps out with garbage, > and I have to give it a hard reboot to recover. No problem with > 2-channel FLAC files at all. > > Do you think that my conversion process is flawed, or is the problem > somewhere else?I suspect (without knowing the details of the SB firmware) > that decoding a FLAC of that size is just too difficult for the client hardware. There's three times as much data to decode per second than with a standard stereo WAV, so it's certainly a harder job -- in terms of CPU and memory requirements, I mean. I was going to suggest trying with the 6-channel WAV pre-decoded from FLAC, but I'm not sure if it will work -- I know that the SB2/SB3 currently sees 48kHz WAVs as being 44.1kHz, and I think it assumes stereo data also. So in fact a variant of bug#128 may prevent this from working. I'm curious: the success you had playing back through fb2k, was that over a digital connection to your receiver, or does your soundcard have the 6 analogue outputs? I ask because I don't know if receivers can generally understand 6-channel PCM audio data, which itself would be a barrier to your solution working. (Sorry to be such a downer!) I'd be happy to be corrected however. So I think that there are a few barriers to getting this method working. I really don't know the situation with receivers, but if they can deal with 6-channel PCM then the only real problem is getting the data through the SB2 -- and as with full-bitrate DTS, it's going to require either a change to the onboard FLAC decoder or the way in which WAVs are streamed. If this can all be overcome, it would provide an alternative for those who have multi-channel files from another source but no AC3 encoder (such a thing not being free, I think). > Thanks heaps for your good work, > LeeBB You're welcome! BTW Lee, since you mentioned Fight Test: did you know that The Soft Bulletin has just been re-released as a 5.1 mix also? -- smst ------------------------------------------------------------------------ smst's Profile: http://forums.slimdevices.com/member.php?userid=752 View this thread: http://forums.slimdevices.com/showthread.php?t=19260 _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/ripping
