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 Post subject: AHD
PostPosted: 22 Aug 2019, 09:06 
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Been wondering was Nicolas meant by this comment "AHD" but now I know!

Vivaldi: The Four Seasons [AHM-1]

Image

It actually "Audio Only VHD" that you can play like just for the music, no need to turn on the screen.

So... Would AHD be to VHD what DVD Audio became to DVD Video?

Julien
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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 15:10 
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Somewhere I saw that there was some attachment for this they were making but I don't really remember but it does seem like DVD Audio
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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 15:37 
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Since there is a AHM-10, I guess we are missing #2 till #9 and maybe a few more!

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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 16:00 
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Very interesting but don't understand why it would have been released.
The nice thing about vinyl at the time was the price was super cheap compared to tape or CD.
A record would be in the 4-8 range, CDs were 10-13 at the time, tapes were around 5+ from what I can remember as a kid buying the few cassettes we had.

This AHD would have been so expensive at 6800y.
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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 16:07 
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xtempo wrote:
Somewhere I saw that there was some attachment for this they were making but I don't really remember but it does seem like DVD Audio

Might've been Techmoan's last video about VHD? I think he mentioned all the add-on stuff in the video about the unrealized UK launch.
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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 19:57 
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Man. That is pointless. It’s no wonder it’s so unknown.
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 Post subject: Re: AHD
PostPosted: 22 Aug 2019, 21:58 
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rein-o wrote:
Very interesting but don't understand why it would have been released.
The nice thing about vinyl at the time was the price was super cheap compared to tape or CD.
A record would be in the 4-8 range, CDs were 10-13 at the time, tapes were around 5+ from what I can remember as a kid buying the few cassettes we had.

This AHD would have been so expensive at 6800y.


Japan CDs were more like Y3000 then tho
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 00:03 
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You're right. I was going by the US prices and forgot that everything in Japan was premium priced for some crazy reason.
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 05:24 
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signofzeta wrote:
Man. That is pointless. It’s no wonder it’s so unknown.

Yeah, I was like "so this has what benefits over vinyl again?"

I think Techmoan's video did mention something about AHD containing a slideshow so you could still hook it up to a TV and it'd be like CD+G but better picture, but even then it seems kinda pointless. Probably should re-watch this video:



I'm watching the video right now and apparently AHD uses digital PCM audio and this was not only years before CD+G became a thing but JVC was trying to compete with CD with it so I can see why it even existed. This webpage has some additional technical info: http://disclord.tripod.com/vhddiscworld/id12.html

Looks like it only barely came out, hence the shortage of titles.
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 07:14 
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takeshi666 wrote:
signofzeta wrote:
I think Techmoan's video did mention something about AHD containing a slideshow so you could still hook it up to a TV and it'd be like CD+G but better picture, but even then it seems kinda pointless.


It's at 25:32 => https://youtu.be/fKLwAwIfZT4?t=1532

"2.54 GIGA BITES" - JVC was really hungry for that market! :lol: or just confused between BYTES and BITS

Julien
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 07:20 
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4 channel digital audio in 1983 though!
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 07:39 
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Found the video below who provided me with other missing AHD titles:

Alps/Himalaya [AHC-1]
Scandinavian Essay, A [AHM-11]



Julien
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 07:49 
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takeshi666 wrote:
4 channel digital audio in 1983 though!

It could have been the Quadraphonic revival!
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 Post subject: Re: AHD
PostPosted: 23 Aug 2019, 08:13 
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audioboyz1973 wrote:
takeshi666 wrote:
4 channel digital audio in 1983 though!

It could have been the Quadraphonic revival!

Because that went so well the previous times! :lol:
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