Author Topic: Quadraphonic headphones  (Read 609 times)

sprogs

  • from your big sister, Steve.
Quadraphonic headphones
« on: September 06, 2020, 05:54:32 pm »
Way back in the 70's I had a quadrophonic system and loved it.
I once tried a friends Quadraphonic headphones, thinking "How can they possibly work ?"
They did, and very well too.
Does anyone know if you can still get them ?
Liz.

PaulF

  • "World's Scariest Barman"
  • It's only impossible if you stop to think about it
Re: Quadraphonic headphones
« Reply #1 on: September 06, 2020, 06:53:56 pm »
Think one challenge may be getting quadraphonic source material to listen to and the hardware to play it.

fuaran

  • rothair gasta
Re: Quadraphonic headphones
« Reply #2 on: September 06, 2020, 07:35:00 pm »
You can get surround sound headphones, going up to 7.1 or so. Seems to be quite popular for gaming, so you can hear people sneaking up behind you.
Not sure if actually much good for sound quality.

Kim

  • Timelord
Re: Quadraphonic headphones
« Reply #3 on: September 07, 2020, 12:56:06 am »
It appears they have multiple drivers in the ear cup.  Odd.

I'd have thought it would be better to process audio in a virtual sound-stage to create a binaural down-mix.  But that's probably still bad at front-back differentiation without incorporating a model of the wearer's pinna.

It's all bollocks though, isn't it?  Ambisonics was developed in the 1970s and thoroughly forgotten about by the time the hardware to do surround sound properly became affordable, so we're repeating all the quadraphonic-era mistakes with a few more channels.
Careful, Kim. Your sarcasm's showing...

sprogs

  • from your big sister, Steve.
Re: Quadraphonic headphones
« Reply #4 on: September 08, 2020, 05:19:46 pm »
Wish I still had my Ferguson quad system though.
Still remember listening to Mike Oldfields Hergest Ridge and hearing the mandolin playing behind my head.
Turned round to see who it was !

Re: Quadraphonic headphones
« Reply #5 on: September 09, 2020, 01:40:33 pm »
Pink Floyd's DSOTM was/is available in quad sound (vinyl + 8 track).
Tis very spendy though

Re: Quadraphonic headphones
« Reply #6 on: September 09, 2020, 01:46:09 pm »
Similarly 8 track was a thing in the 70s. Binaural should be the way to go. Development somewhat stifled by Creative Labs after purchase of Sensaura.
Virtual Barber shop. Q sound labs.

https://www.youtube.com/watch?v=IUDTlvagjJA

Beeb R and D

https://soundcloud.com/user-351945045/pearl-opening-sequence-binaural
Get a bicycle. You will never regret it, if you live- Mark Twain

Re: Quadraphonic headphones
« Reply #7 on: September 10, 2020, 07:21:13 pm »
There are several quadraphonic amps on eBay at the moment should anyone be tempted.
This Technics receiver is cool:

https://www.ebay.co.uk/itm/Technics-SA-8000X-CD-4-FM-AM-4-Channel-2-Channel-Stereo-Receiver/143600642258?hash=item216f43e8d2:g:rQsAAOSwz~heuA-f
I think you'll find it's a bit more complicated than that.

Re: Quadraphonic headphones
« Reply #8 on: September 13, 2020, 04:21:38 pm »
Pink Floyd's DSOTM was/is available in quad sound (vinyl + 8 track).
Tis very spendy though

Looking around, it seems that this was made unofficially available as a DVD-A  iso some years ago.
It would be nice to have it made generally available, I'd love to hear it.