Audio Dropouts Only with TU-DST50, or also 51? - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 7 Old 05-23-2001, 11:38 AM - Thread Starter
AVS Special Member
 
tommyboy2's Avatar
 
Join Date: Feb 2000
Location: Orchard Park, NY
Posts: 1,405
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Both. The dropouts depend more on the AV receiver you are using than the DST50 versus 51. I haven't kept up with which receivers work best and which require a SHAC500.

Tom

[This message has been edited by tommyboy2 (edited 05-23-2001).]
tommyboy2 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 05-23-2001, 06:37 PM
sr
Senior Member
 
sr's Avatar
 
Join Date: Jan 2001
Location: Forest Hills, NY
Posts: 250
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 14
I have a DST50 that was exchanged once by Panasonic under the warranty and the replacement unit has the audio drop-out problem. It seems to diminish as the STB warms up. I'm using the optical output to feed a Sony E9000ES Pre-amp. I have asked Panasonic to do a second exchange. If the replacement unit also has the problem, then I guess they have no solution. What's a SHAC500? I will hook my unit to anything that solves this problem.
sr is online now  
post #3 of 7 Old 05-23-2001, 08:05 PM
AVS Addicted Member
 
Ken H's Avatar
 
Join Date: Nov 1999
Location: Metro Detroit
Posts: 45,876
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
The SHAC500 is the model number of a Technics DD/DTS audio processor. It will allow correct DD playback from the Panasonic TU-DST50/51 & PV-HD1000.

The general belief is that because Technics & Panasonic are both owned by the same company, that the equipment was tested together before release and proved compatible. All of it has been discontinued.

This problem is a compatibility issue between some equipment. It is not universal, as some DD decoders (for example Marantz) work fine with the Panasonic equipment.

It seemed like a cheap solution, at less than $250, if you wanted to use the Panasonic equipment to record HDTV and were unlucky enough to have a DD decoder that was not compatible.

If I remember correctly, this only happened during DVHS playback.



------------------
"better living thru modern expensive electronics"
tm

'Better Living Through Modern, Expensive, Electronic Devices'

Ken H is offline  
post #4 of 7 Old 05-23-2001, 10:23 PM
Member
 
CdnSteveR's Avatar
 
Join Date: Feb 2001
Location: Canada
Posts: 67
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Is the notorious AC-3 audio dropout problem (with most decoders -- usually solved with an outboard Technics decoder) a problem with the TU-DST50 only, or does the TU-DST51 also have the problem?

Thanks,

Steve R
CdnSteveR is offline  
post #5 of 7 Old 05-24-2001, 07:02 AM
Advanced Member
 
Mike2's Avatar
 
Join Date: Jan 2000
Location: GA
Posts: 541
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
There used to be a thread with a list of "compatible" receivers and processors but I can't find it now. Someone determined the dropouts were eliminated if the decoding device used a particular brand of decoding chip.

The Technics DX receivers and SHAC500/300 decoders work. The Lexicon Pre/pros work. I think people also reported success with some models Harmon Kardon, Sony, Marantz, and Yamaha.

The inexpensive Technics decoders solve the dropout problem but the 2 I have introduce a little hiss at higher volumes.

Mike
Mike2 is offline  
post #6 of 7 Old 05-24-2001, 09:22 PM
Senior Member
 
joelco's Avatar
 
Join Date: May 2000
Location: Rindge, NH, USA
Posts: 419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I believe the problem is how the decoder handles an instantaneous AC-3 carrier dropout. The decoders probably mute during the dropout, but some have a longish fixed mute time. That is probably an adjustable parameter (at least I hope so) in the decoder. I am waiting for a reply from Lexicon who are looking into this issue, and I will post their results as soon as I hear back.

------------------
joel@HI-REZ

joel@HI-REZ
joelco is offline  
post #7 of 7 Old 06-01-2001, 01:20 PM
Member
 
Tom Armading's Avatar
 
Join Date: Feb 2001
Location: Honolulu, HI, USA
Posts: 96
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I got the Technics SHAC500 to handle better the dropouts, but it is worse than the SonyEP9ES processor I was using. On the Sony, each dropout was just a little dip, or skip in the sound. The Technics would produce a soft click for those same dropouts. I'm back to using the Sony.

-Tom
Tom Armading is offline  
Closed Thread HDTV Recorders

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off