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raydofan
Guest
chriscoxradio said:
Silly question:
You are recording using a stereo cable into the card, rihgt? The Tull song sounds like one channel (L perhaps) spread over 2. If it's not on your end, then it's on the station's.
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Silly question:
You are recording using a stereo cable into the card, rihgt? The Tull song sounds like one channel (L perhaps) spread over 2. If it's not on your end, then it's on the station's.
C
chriscoxradio
Guest
raydofan said:
Yes, it's a stereo cable.
chriscoxradio said:
Why do HD promoters insist on thinking that posting poor quality recordings of HD radio audio from one of of their local HD radio stations somehow "proves" that HD radio is not a sham, farce, defective, or addresses any of the interference or false advertising and promotional claims made by iBiquity and the HD radio cartel to peddle this problematic technology?
What's next, it's not a farce because "HD promoters wear orange jumpsuits"?
More accurately, it IS a farce because HD promoters have to wear orange jumpsuits, just to get any attention at all.
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Mike Walker
Guest
HD sound quality is breathtakingly real...when it's good. But it can sound quite bad (I'm sorry, but these examples aren't exactly making the point that it sounds good!) I've yet to hear anything in your samples resembling stereo! I agree...you're not giving us stereo!
Anyhow, anyone with a public station broadcasting a clean, unhyped high bitrate HD signal knows what it sounds like...like you're in the room with the announcer.
Some examples that DO make the point
http://www.theproductionroom.net/hd.wma
http://www.theproductionroom.net/shuffle.wma
Anyhow, anyone with a public station broadcasting a clean, unhyped high bitrate HD signal knows what it sounds like...like you're in the room with the announcer.
Some examples that DO make the point
http://www.theproductionroom.net/hd.wma
http://www.theproductionroom.net/shuffle.wma
SUPERCASTER said:
I think you have presented your opinion fairly accurately. HD radio is a farce because it has been promoted by a team who wore orange jumpsuits.
So is it the color orange or the jumpsuit vs pants thing? You know what? Never mind. Both would carry the same weight.
Clouseau
clouseau said:SUPERCASTER said:
I think you have presented your opinion fairly accurately. HD radio is a farce because it has been promoted by a team who wore orange jumpsuits.
So is it the color orange or the jumpsuit vs pants thing? You know what? Never mind. Both would carry the same weight.
Clouseau
No, as usual you have completely missed the point of what I posted and gone off on some strange, fantasy of your own creation.
HD radio snake oil is all smoke, mirrors, over-hyped false claims, defective technology, meaningless razzle dazzle, and orange glow promotions. Still, the public could care less, and after a billion dollar promotion there seems little public demand or interest for HD radio's products or technology.
If you are worried about iBiquity and the HD cartel loosing their pants, you are probably right. iBiquity might soon be looking for more loans and venture capitol. After all, you are the only one who mentioned you were worried about their pants.
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chriscoxradio
Guest
Mike Walker said:
Yeah, I've been having trouble with my Production computer. That's why the sound quality is all messed up. Mike, those sound great. I might have to tune into my local Public Radio affiliate and see how they sound in HD.
DIRECT LINK TO MP3 > www.box.net/index.php?rm=box_v2_mp3_player_shared&node=f_69429117
The above link is a link to the mp3 that chriscoxradio referenced.
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raydofan
Guest
chriscoxradio said:
Ah, OK. Any 'stereo' effect is attributable to the sound card. There is a 'bulge' in the sound as I switch between Mono and Stereo on my preamp. I opened this in wavelab, and the L and R waveforms appear different, and sound slightly so. The sound is mono. Your soundcard is limping though, and leans toward one channel, with different frequency response on each. I also looked at the file on wavelab's scope analyzer The plot should be a vertical line (for mono) or a relatively symmetrical round plot. This recording plots as a lopsided moving bubble.
For an accurate recording, use a USB sound card (The Yamaha UW-10 is good- stereo RCA and Optical I/O). I have been through the built-in soundcard mill-they are mostly crap.
The IBOC at this station has been very sloppily handled, as you're only getting one side of the chain output. I would let someone know.
raydofan said:
Are you sure the station isn't broadcasting "lopsided"? I've encountered more balance-impaired radio stations than should be common, especially in the noncomm band (*cough* WMAV Oxford *cough*). I've also heard a few here and there that only have left-channel audio over both stereo channels. WYSF in Birmingham comes to mind as a constant offender; every other song they would play would be that way. No one ever seemed to notice, though. (XM's Top Tracks classic rock jukebox channel drops to left-channel mono a lot on their DirecTV feed, too. It's very annoying!)
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Mike Walker
Guest
Zach's right. Stations can do some weird things when it comes to audio. A local station (which shall remain nameless) once broadcast in mono for weeks...until I pointed it out. The "light was on" (stereo pilot tone present), but "nobody was home" (a mono switch was engaged on a mixer the automation system was routed through). Another station went mono during ballgames, and nearly always forgot to return to stereo when they resumed normal programming. ARRRGH! Of course coming from the on-air side, I'm a headphone addict...and the absence of stereo stands out (to me) like a sore thumb. But geez, guys (stations) audio IS YOUR PRODUCT. Try LISTENING TO IT!
Here are 2 HD samples recorded this morning from WCBS FM HD 2 & WNYC FM HD 2 using a Sangean HDT-1 tuner in a NYC suburb. WNYC is running 3 HD streams by the way. These files are wav so there would be no problem with cascading codecs.
http://download.yousendit.com/3DD8074A09021D98 (WCBS FM)
http://download.yousendit.com/A6F834892BB6C1A2 (WNYC FM)
http://download.yousendit.com/3DD8074A09021D98 (WCBS FM)
http://download.yousendit.com/A6F834892BB6C1A2 (WNYC FM)
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raydofan
Guest
Zach said:
The sample indicates a sub-par soundcard in addition to a L channel mono IBOC broadcast.
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raydofan
Guest
R.F. Burns said:
Better...using an internal or external card?
raydofan said:
I use a Audigy 2 card (not on board audio) and recorded the output of the tuner onto a Tascam DA 40. I took the dat to my computer and patched a Tascam DA-P1 dat recorder into the audio card. When I get the HDT-1X I can do pure digital because my aduio card has a spdif input.
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raydofan
Guest
R.F. Burns said:
Sounds a little R Channel leaning (and looks it too as I looked at the display in Wavelab) S/PDIF from the DAT or just RCA in?
Sound is actually stereo. The PAMS jingle is in mono, so you can see the balance difference in L/R if you look.
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raydofan
Guest
R.F. Burns said:
Does the radio tell you the bitrate of these streams? They do sound pretty decent.
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Mike Walker
Guest
Don't worry about the bitrate! HDC is a FAR more efficient codec than mp3. 96kbps, the highest bitrate, is VERY transparent...like a direct feed from the studio (if the engineers are doing their job). 48kbps is also quite transparent, but a little less so...still quite a bit better than the average analog FM, and DEAD QUIET ("No static at all...." to quote the old Steely Dan song "FM").
My point? Don't "listen" with numbers. LISTEN WITH YOUR EARS! If it sounds good, IT IS GOOD! It frustrates me to no end people deciding on whether something sounds good based upon the freakin' bitrate! Uncompressed 1,411kbps cd can sound awful, and 48kbps HDC or aac+ can sound fantastic. If it SOUNDS good, it IS good!
My point? Don't "listen" with numbers. LISTEN WITH YOUR EARS! If it sounds good, IT IS GOOD! It frustrates me to no end people deciding on whether something sounds good based upon the freakin' bitrate! Uncompressed 1,411kbps cd can sound awful, and 48kbps HDC or aac+ can sound fantastic. If it SOUNDS good, it IS good!
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raydofan
Guest
Mike Walker said:
Well, I guess I want to assign a 'blame number' to the sound, but it's really moreso "If it sounds this good at x rate, then it will sound better when x is increased to such-and-such"; as in what's available to use in a full digital FM channel. We're essentially in agreement.
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