ATSC Digital Audio Quality, Technology, Issues - Canadian TV, Computing and Home Theatre Forums
 

Go Back   Canadian TV, Computing and Home Theatre Forums > Canadian Internet, Phone, TV and Wireless Service Providers > Over-The-Air (OTA) Digital Television

Digital Home Helpful Information

Reply
 
Thread Tools Search this Thread Display Modes

Old 2009-06-21, 06:31 PM   #1
Codec_fan
Rookie
 
Join Date: May 2009
Posts: 17
Lightbulb ATSC Digital Audio Quality, Technology, Issues

I was watching the FIFA confederation cup on CBC HD OTA and notice that Radio-Canada (SRC) was not showing the games in french. The were only offering the web stream. Since CBC offers other language beside english on its web stream like Panjabi for HNIC. Why don't they send multiple audio stream like french when its sister station is not broadcasting ? They could also increase their rating with some spanish during the world cup.

Thanks,
Codec_fan is offline  
Sponsored Links
Advertisement
 
Old 2009-06-21, 10:45 PM   #2
Walter Dnes
 
Join Date: Jun 2006
Location: Vaughan, Ontario (near Dufferin and Steeles)
Posts: 1,894
Default

Quote:
Originally Posted by Codec_fan View Post
I was watching the FIFA confederation cup on CBC HD OTA and notice that Radio-Canada (SRC) was not showing the games in french. The were only offering the web stream. Since CBC offers other language beside english on its web stream like Panjabi for HNIC. Why don't they send multiple audio stream like french when its sister station is not broadcasting ? They could also increase their rating with some spanish during the world cup.

Thanks,
Given that ATSC can carry half-a-dozen audio feeds, why not go whole-hog and carry that many? I wonder if its possible to go one better, and take say 20 audio streams. Then feed English+French and the next top 4 languages, by population, on a station by station basis. I can see Chinese being important in Vancouver, Portuguese and Italian in Toronto, etc, etc.
__________________
OTA brings you crystal-clear, uncompressed HDTV, no simsubbing, and the real SuperBowl commercials. You can't get all that on satellite... OR CABLE.
Walter Dnes is offline  
Old 2009-06-22, 11:47 AM   #3
classicsat
Veteran
 
Join Date: Nov 2003
Location: Kincardine ON.
Posts: 4,201
Default

It is really how the receiver/ATSC/PSIP system can handle multiple Audio streams.

Ideally, you'd press an Audio button and gel a list of available audio feeds you can choose from, or get a different sub-channel number for the main audio plus different audio.

According to my TV manual (Soyo), apart from the MTS/SAP button on the remote (which seems to be written in reference to analog TV), it is hard to tell how to select a different digital audio program.
classicsat is offline  
Old 2009-06-22, 12:00 PM   #4
stampeder
OTA Forum Moderator
 
Join Date: Jan 2005
Location: North Delta, BC (96Av x 116St)
Posts: 23,459
Default A private business model for multilingual broadcasts

While the ATSC standard and equipment can do it, the budget for simultaneous translation services would be huge, and I would say goes against the CBC's mission statement let alone its funding.

Here's a business model that might be of interest to large ethnic groups in specific linquistic areas of Canada: (such as Punjabi in Surrey, BC, etc.) approach the authorities and the CBC for affiliate rights to broadcast the original CBC ATSC feed stripped of its audio streams, which are replaced with overdubbed, real-time translation into one or more languages. Since the original CBC station is still running in the market, simsubbing could also be allowed for local commercials in those specific languages.

This frees up the CBC from having to make public policy decisions that might be considered against its mission statement and for which some Canadians may take exception.
stampeder is offline  
Old 2009-06-22, 08:29 PM   #5
Walter Dnes
 
Join Date: Jun 2006
Location: Vaughan, Ontario (near Dufferin and Steeles)
Posts: 1,894
Default

Quote:
Originally Posted by stampeder View Post
While the ATSC standard and equipment can do it, the budget for simultaneous translation services would be huge, and I would say goes against the CBC's mission statement let alone its funding.
I'm not thinking of simultaneous translation, but rather picking up audio feeds from a foreign broadcaster. As long as the timing isn't more than a couple of seconds out, it should work for stuff like international soccer matches. A totally made up example... Greece versus Brazil; pick up a feed from a Brazilian radio station and a Greek radio station. There's bound to be one covering the game for each participant.
__________________
OTA brings you crystal-clear, uncompressed HDTV, no simsubbing, and the real SuperBowl commercials. You can't get all that on satellite... OR CABLE.
Walter Dnes is offline  
Old 2009-06-22, 08:53 PM   #6
recneps77
Veteran
 
Join Date: Apr 2007
Location: Whitby
Posts: 2,815
Default

Or for sports games - forget translation.. surely they could afford to pay someone to be a commentator in french considering the extra viewers they'd gain.
recneps77 is offline  
Old 2009-06-28, 08:32 AM   #7
Codec_fan
Rookie
 
Join Date: May 2009
Posts: 17
Default

I too was thinking of using an international feed instead of translating. Also, french commentary can be obtain from Radio-Canada at little to no cost.

I remember watching a confederation cup game were CBC struggled to get the english play by play commentary from South Africa . Most of the game had stadium noise only and CBC ended up using ESPN's audio around the 80th minutes. That probably cost them but also shows how easy it can be done.
Codec_fan is offline  
Old 2009-10-15, 11:26 AM   #8
monomono
 
Join Date: May 2007
Posts: 31
Question Audio glitches/pops with certain Dolby Digital OTA programs?

Am I the only one who gets a loud popping sound with certain Dolby Digital programs? It happens during commercials and end credits, mostly with NBC (channel 2.1) and occasionally CBC (5.1). It sounds horrendous. Channel strength is 100% and picture is perfect. I'm in NE Toronto.

I'm using the tuner in a Panasonic plasma (TH58PZ700), with optical out to a newer Denon receiver (AVR789).
monomono is offline  
Old 2009-10-15, 12:13 PM   #9
DdDave
 
Join Date: Mar 2009
Location: Oak Ridges, On
Posts: 405
Default

I had some pops last night on 2.1 on my Samsung LCD, but I've never noticed any using my converter boxes, I have an Insignia and a Zenith (which are actually the exact same).

Last edited by DdDave; 2009-10-15 at 12:14 PM. Reason: typo
DdDave is offline  
Old 2009-10-15, 01:20 PM   #10
57
Moderator
 
Join Date: May 2002
Location: Toronto, Rogers, 9865 & 8300-eHDD, Panasonic TCP65S1, Denon AVR4310Ci; Sony KDL40W3000, 8300-eHDD
Posts: 51,838
Default

I've heard this as programming changes from DD5.1 to DD2.0, however, it's usually on inexpensive HTiB systems and I wouldn't expect that from your Denon, although the source of the problem might be the TV output, or the original programming if you don't see, er hear it on other channels.

CBC always sends a DD5.1 signal, but most programmes are 2 channel (coming out the LF & RF only), while others are actually DD5.1.
__________________
57's Optimization Services (Home Theatre Optimization) . . . . 57's Home Theatre (Latest equipment & photos)
57 is offline  
Old 2009-11-30, 06:45 PM   #11
Quinplex
 
Join Date: May 2007
Posts: 3
Default

I often hear audio distortions that sound like a warbling static, especially (for some reason) on commercials and credit sequences (or that little two note Law and Order bit they play on the titles...)

CBC is especially bad, but it happens on other channels as well. I thought I was the only one!

I have a 50" Panasonic Viera. Can't remember the model # offhand, sorry. I use an RCA antenna purchased at FutureShop (lousy, I know).
Quinplex is offline  
Old 2009-11-30, 06:53 PM   #12
Jase88
Moderator
 
Join Date: Jan 2009
Location: Kitchener, ON
Posts: 4,391
Default

I've noticed this problem on occasion...very loud when it happens.
__________________
DMX 68' tower, HyGain HAM 5 rotator, Antennas Direct 91-XG & C5, Channel Master 7777 preamp, Siemens surge protection
Jase88 is online now  
Old 2009-11-30, 09:57 PM   #13
ota_canuck
Veteran
 
Join Date: Mar 2009
Location: Dunnville, Ontario on the Grand River, North shore Lake Erie
Posts: 2,408
Default Hmmm,.. that's interesting to hear.

I've had the same audio problem, but usually only on Buffalo 7.1 WGRZ.

Periodically I hear a sharp snap and then the volume or tone changes slightly. It's more noticeable when I'm running the audio through my old but powerful Techniques stereo amplifier with the volume cranked and the bass boost turned on. [Those big speakers really make a 'snap'.]

It almost seemed like a static charge & then a discharge of static in the speakers. I thought it was just a problem with my audio set-up.
ota_canuck is offline  
Old 2009-12-01, 09:04 AM   #14
fordescort
 
Join Date: Feb 2008
Location: Hagersville, ON (20 km South of Hamilton)
Posts: 52
Default SUN TV

I am experiencing consistent audio "dropouts" on Sun TV (15-1) from my Samsung receiver's digital output to a Techniques audio receiver.
fordescort is offline  
Old 2009-12-01, 01:22 PM   #15
stampeder
OTA Forum Moderator
 
Join Date: Jan 2005
Location: North Delta, BC (96Av x 116St)
Posts: 23,459
Default

Audio dropouts are usually related to low ATSC signal strength, when it is just barely above the threshold of digital lock, so I'm thinking that the problems discussed in this thread probably relate to the individual ATSC tuner's processing of the data streams.
stampeder is offline  
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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



All times are GMT -4. The time now is 12:58 AM.

OTA Forum Sponsor


Search Digital Home

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.