Or, just one mono file, successively to each input... Dr. Peter Lennox SFHEA Senior Lecturer in Perception College of Arts, Humanities and Education School of Arts
e: [email protected] t: 01332 593155 https://derby.academia.edu/peterlennox https://www.researchgate.net/profile/Peter_Lennox University of Derby, Kedleston Road, Derby, DE22 1GB, UK ________________________________ From: Sursound <[email protected]> on behalf of David Pickett <[email protected]> Sent: 18 February 2019 19:07:46 To: Surround Sound discussion group Subject: Re: [Sursound] Anyone ever tried to bypass youtube/facebook360 player Ambisonics decoder? Why not make up a signal from six totally different mono wavefiles and see where they land after decoding? David At 17:33 18-02-19, you wrote: >Content-Transfer-Encoding: base646 channel format on YT: > >https://github.com/google/spatial-media/blob/master/docs/spatial-audio-rfc.md > >So channel ordering (normally) is W, Y, Z, X, L, R. > >It is possible to change the channel layout, which might be a >problematic feature... > >“For example, a channel layout of 4, 5, 0, 1, 2, 3 indicates that the >layout of the stored audio is /L/, /R/, /W/, /Y/, /Z/, /X/.” > >Best, > >Stefan > >Citando Marc Lavallée <[email protected]>: > >>Sean, >�‚�ˆ[ÝHØ[ˆ\ÙHH[Ý]X™KYØÜš\€> >(https://rg3.github.io/youtube-dl/) to download only the appropriate >>audio stream. Here's how I was able to use it. First I inspected the >]˜Z[X›H›Ü›X]΂€£à > >[Ý]X™KYQˆšÎ‹ËÝÝÝËž[Ý]X™K˜ÛÛKÝØ]ÚÝ�X’ÕŒR@S-ATmQ" >�‚�‚‚’FVçFfVB2f÷&ÖG2&÷fFærdô7G eams: 327 (aac), 338 (opus) >>and 339 (vorbis). >�‚�‚€ So to get the aac stream (with an audio >container, using the "-x" option): >�‚�‚‚÷WGV&RÖFÂÖb3#rׂ&‡GG3 >//www.youtube.com/watch�X’ÕŒRTËPUTH‚�‚€£à£âF†R&W7VÀting >stream has 6 channels, so 2 of them are silent. No >>idea about the channel ordering. If prefered, the opus and vorbis >Ý™X[\È]™H >Ú[›™[È >›Ý >ŠK‚�‚�‚€£â It should also be possible to create >a "stream and decode" pipeline >\Ú[™È\ÈÛÛ[X[™ >Ú]H‹[ÈHˆÜ[Àn, without the "-x" option): >�‚�‚‚÷WGV&RÖFÂÖb3#rÐo - >>"https://www.youtube.com/watch�X’ÕŒRTËPUTHˆ >> > some_command_line_decoder >>�‚�‚‚F†R'6öÖUö6öÖÖæEöÀine_decoder" is a script or software that can >>decode the stream from STDIN (so a proper Unix OS is required). >�‚�ˆH[Ý]X™KYØÜš\Ø[ˆ[ÛÈ™H\ÙYÚ]Hmpv video player >>(https://mpv.io/); see the ytdl-format and ytdl-raw options. >> >�ˆHÜH\È[ˈÛÛÙ luck! >> >�ˆX\˜�‚€£à£âƒ#’Ó"Ó‚:S£3æÒâÀ Sean Devonport a écrit : >> >>>Hey everyone, >‚ƒà ø(> I'm hoping someone may be able to >provide some information to me on this >>�‚7V&¦V7Bà ø(> >‚ƒâ’vçBFð bypass youtube/facebook360 Ambisonics decoding and stream >‚ƒâF—&V7FÇ’Fò×’Ö&—6öæ2FV6öFW"fVVFær×VÇF—Àe loudspeakers. >>�€£à(ø Does anyone have any bright ideas to >>get the raw encoded Ambisonic format >>�‚7G&Paming from these videos�€£à(ø >>Û›HÛ™HHØ[ˆ[€k of is to create a video player that decodes the 360 >>> >>> video, but then leaves the audio encoded and streams that out from the >>> >>> browser. >>�€£à(ø Any help/ideas would be greatly appreciated! >‚ƒà ø(> All the best, >�ˆ××××××××××××××××××××××××××××××××××××××××××××××€> >Ý\œÛÝ[™XZ[[™È\Ý�‚‚£â7W'6÷VæD×W62çgBæVGPhttps://mail.music.vt.edu/mailman/listinfo/sursound >- >unsubscribe here, edit account or options, view archives and so on. >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: ><https://mail.music.vt.edu/mailman/private/sursound/attachments/20190218/8afb11fb/attachment.html> >_______________________________________________ >Sursound mailing list >[email protected] >https://mail.music.vt.edu/mailman/listinfo/sursound >- unsubscribe here, edit account or options, view archives and so on. _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. The University of Derby has a published policy regarding email and reserves the right to monitor email traffic. If you believe this was sent to you in error, please reply to the sender and let them know. Key University contacts: http://www.derby.ac.uk/its/contacts/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20190218/e87cc68b/attachment.html>
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