Smartphones Save Quad (AES paper)

[kfbkfb]

https://www.aes.org/e-lib/browse.cfm?elib=20691^^^
"With the increasing trend of using smart phones and other
handheld electronic devices for accessing the internet,
playback of audio in multichannel format would eventually
gain popularity on such devices."


Per recent ATMOS thread:
I put "ATMOS" into the search box at aes.org, I couldn't find
any AES papers that provided a technical description of exactly
how ATMOS is encoded into the metadata of Dolby Digital Plus
and Dolby TrueHD (maybe search US Patents).

I did find the above paper from 2019-10 though (I'm not an
AES member, maybe someone who is could summarize the
article for us).


Kirk Bayne

 

[Soundfield]

Brilliant idea. It just requires the use of this simple and unobtrusive phased array of smart phones:

 

[furui_suterioo]

A handheld hi-res multichannel player for DVD-a, sacd, DTS, flac, wav etc with three spaced apart stereo headphone jacks for 5.1(or hdmi out for modern equipment) with full size sd(s) card would be ideal for me. Since these features would never be put on a mainstream smartphone, sort of justifies a seperate high end player/recorder device.

 

[Circular Vibes]

Somehow I picture a hat with multiple speakers, kinda like Homer's beer hat.

 

[François]

 

[DuncanS]

Its not the best of papers! From what I can ascertain they down-mixed multi-channel to stereo and had listeners compare it with the standard stereo mix on a mobile with headphones to determine if the audio 'quality' was impaired.

 

[kfbkfb]

The trick is to convince the "record" companies to record the
masters in Multichannel (at least 4.0) because (if it's encoded
for headphone surround) it'll sound better on Smartphones
(possibly a marketing advantage, listeners might listen to
music from the "record" company artists more than artists
whose music isn't surround encoded).


Kirk Bayne

 

[MidiMagic]

Sounds like a good use for dichophony.

 

[kfbkfb]

Yes, since the SQ/QS surround sound via stereo headphones was
announced other methods have been devised (Dolby Headphone
for example).

The music content owner could encode the stereo with surround
sound and verify that the audio data reduction system (MP3 et al.)
doesn't damage the surround sound effect (too much).


Kirk Bayne