thx Mick I think I' ll go down the ac3 road - not shire however what nitrate to use.. would sth like 640 for a 4-channel file be ok ??
thx m On 29 Nov 2011, at 21:48, mick ritchie wrote: > Hi marinos > > i missed the bginning of the debate but I went down this road 3 years ago to > stream bformat files > > For your requirements with 4 channels of discrete speaker files I think ac3 > is by far the most accessible > to anybody who has no 4 channel sound card - a digital link between computer > and home ents system and you have > 4 speaker playback without any tweaking. Go for the highest spec as they are > a bit limp and I remember adding 2 channels of audio silence to ensure all > players see the same thing - also some players like vlc need a good one > second start before theyve communicated youre in dolby digital to the decoder > and you can miss the first note. > > For streaming with bformat or 4 channel files I found ogg files to be the > best quality and I also had grief with VLC - first they worked then after a > week they crashed VLC over and over again - I just tried a couple of them and > now VLC doesnt read them at all - something about XoX files not being good > whatever that means. > I just looked online for any developments and came across many problems > including my 2008 request that went unanswered. What I did find though was > that by making a QTmovie ref file to the ogg file I could then stream in > QTPlayer and Itunes(which doesnt accept Ogg) that was what i used. The QTref > file allows you to ensure the correct track allocation which ther Ogg alone > wouldnt do. I didnt have time to test with all players and just recommended > Quicktime which most PC users have > > Now I can stream a 4 channel FLAC up to a point but FLAC was my preference > for download - this was fine in VLC and easily streamed through a bformat > decoder. > > AAC looks interesting now and ive got some binaural experiments to do this > week and will try it for some 4 channel while im at it. > > I use audacity to make my multi track files > > best > > mick > > > > > > > > On 29 Nov 2011, at 00:18, Marinos Koutsomichalis wrote: > >> thus far: >> >> - I tried ac3 and it seems ok to me - VLC can playback with no problems >> - I haven' t yet managed to encode to AAC - I get an error that libfaac is >> missing when using ffmpeg and audacity refuses to find the proper library - >> still looking for some other encoder >> - I easily encoded to flac with sox but the size is huge and thus totally >> inadequate for my purposes >> - ogg vorbis encode fine with sox but VLC crashes.. >> >> so 2 questions: >> >> 1. what are the right settings for a HQ quad ac3 ?? I used 44.100 and 192k >> which sounds ok - but then I don' t have very good speakers to be sure - let >> aside the file is pretty small which means I can afford higher nitrates >> 2. What' s the verdict of an aac vs ac3 comparison ??? >> >> >> On 29 Nov 2011, at 00:12, Marinos Koutsomichalis wrote: >> >>> oh yeah I did encode them and they did seem file - but I could not play >>> back them.. >>> >>> it was pretty easy to encode actually.. >>> >>> I google it a bit and there are a couple of bug reports about ogg+video >>> problems - so there seems to be some problem >>> >>> m >>> >>> On 28 Nov 2011, at 23:01, Eero Aro wrote: >>> >>>> Marinos Koutsomichalis wrote: >>>>> I tried encoding to 4 channel ogg via both sox and audacity and VLC >>>>> crashes when I try to playback for some reason, >>>> >>>> Hmm. >>>> I have used the encoder in the past and it worked ok >>>> and the files played fine. Sorry, but can't remember >>>> if I had any troubles in using the encoder. It could have >>>> been possible that I had to to rename the two >>>> stereo files in the same way as the Zoom H2 names >>>> them. >>>> >>>> Did the software encode your files anyway? Did you >>>> get to that point? >>>> >>>> Eero >>>> _______________________________________________ >>>> Sursound mailing list >>>> [email protected] >>>> https://mail.music.vt.edu/mailman/listinfo/sursound >>> >>> -- >>> Marinos Koutsomichalis >>> Music Research Center, University of York >>> Contemporary Music Research Centre (CMRC) >>> www.marinoskoutsomichalis.com >>> www.agxivatein.com >>> skype: marinosk_81 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: >>> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20111129/42cabc6f/attachment.html> >>> _______________________________________________ >>> Sursound mailing list >>> [email protected] >>> https://mail.music.vt.edu/mailman/listinfo/sursound >> >> -- >> Marinos Koutsomichalis >> Music Research Center, University of York >> Contemporary Music Research Centre (CMRC) >> www.marinoskoutsomichalis.com >> www.agxivatein.com >> skype: marinosk_81 >> >> >> >> >> >> >> >> >> >> >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20111129/ae7ede95/attachment.html> >> _______________________________________________ >> Sursound mailing list >> [email protected] >> https://mail.music.vt.edu/mailman/listinfo/sursound > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound -- Marinos Koutsomichalis Music Research Center, University of York Contemporary Music Research Centre (CMRC) www.marinoskoutsomichalis.com www.agxivatein.com skype: marinosk_81 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20111129/8cd7a0a7/attachment.html> _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
