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Old 11-09-2003, 12:13 PM   #31
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Originally Posted by The Interpreter
Let's just hope the major aim of the new Codec is sound improvement, not to make more stream room for video from the limited bandwidth available. Now, I don't THINK they would do that, but I also wouldn't bet my life savings on it, either.
I agree.... I am pretty sure its all about sound quality. Its like DonaldfromDetroit says, they are a bit inconsistant, so hopefully this will bring a much more consistant quality sound level across all the streams
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Old 11-09-2003, 01:15 PM   #32
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There is a possibility that they are still considering changing CODECs to AAC (requiring a retrofit of all legacy hardware).

This would explain the half-hearted hardware push.
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Old 11-09-2003, 01:21 PM   #33
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Originally Posted by clockcalibrator
There is a possibility that they are still considering changing CODECs to AAC (requiring a retrofit of all legacy hardware).

This would explain the half-hearted hardware push.
No way.

Existing radios will work just fine with what they have planned.

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Old 11-09-2003, 01:51 PM   #34
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Default AAC ...not.

A recent article in Radio World magazine reported that when Ibiquity Digital abandoned the PAC codec for upcoming HDRadio (IBOC), 8 of their PAC engineers were hired on by Sirius.

This indicates to me a stronger push toward an "improved" PAC codec.
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Old 11-09-2003, 01:59 PM   #35
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If sirius enhances the codec code to improve the sound quality, how does the receiver incorporate the update and decode the stream properly? Is each receiver able to receive flash updates by satellite?
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Old 11-09-2003, 02:32 PM   #36
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Gen 1 and Gen 2 receivers are not software upgradeable (same as our competitor's receivers). Any improvements in the codec are being done on the encoding side.
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Old 11-09-2003, 02:42 PM   #37
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Quote:
Originally Posted by SiriusRon
Gen 1 and Gen 2 receivers are not software upgradeable (same as our competitor's receivers). Any improvements in the codec are being done on the encoding side.
Are you sure about this? What's the source? You work at Sirius but in PR.

BTW I *owned* XM through one of their codec upgrades, so don't tell me that XM's receivers aren't software (via satellite) upgradeable. I had XM when they were using PAC, and then saw the "Updating..." message happened on my receiver and the upgrade happen right in front of my eyes (and ears!) when they switched to AAC+SBR.

If Sirius units are not software upgradeable, how could they make channel changes to our receivers?

BTW I'm not necessarily disputing you because for all I know you know something I don't, but if what you say is true, Sirius totally and completely screwed themselves IMO. I *do* know for a fact that even the Gen1 XM receivers were codec software upgradeable--I saw it for myself. It took about 3 minutes of "Updating..." on my XM receiver and BAM!, AAC+SBR bliss ensued.
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Old 11-09-2003, 03:47 PM   #38
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Well SiriusRon is pretty much one of the best sources on here. I wouldn't doubt anything he says. If you get 2 seconds read his profile.
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Old 11-09-2003, 03:51 PM   #39
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Quote:
Originally Posted by Tristan
Well SiriusRon is pretty much one of the best sources on here. I wouldn't doubt anything he says. If you get 2 seconds read his profile.
I didn't even have to look. All I needed to see was NY,NY. And with a name like SiriusRon you just know he's with Sirius.
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Old 11-09-2003, 04:23 PM   #40
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Yeah I believe him, but am very suspicious of his comments regarding XM's equipment. Like I said, I saw the software flash when they switched from PAC to AAC right before my eyes, so I know at least something in there is flash upgradeable.

I mean, I believe him, but how can I believe that the Gen1 and 2 Sirius receivers are not software upgradeable. Sirius would be basically shooting themselves in the foot. Like, what if XM came out with some super codec that allowed CD quality and 150 channels... Sirius would be screwed wouldn't they without a proper decompression scheme on the tuners?

BTW if my memory serves me correctly, at least with XM they are using software FLASHABLE DSP's, and DSP's can effectively be "upgraded" via software/satellite. Wouldn't Sirius have the same thing? I mean, SiriusRon, how do you explain how XM completely switched codecs, and then flashed everyone's receiver back in 2002? Everyone at XMFan saw, and heard it, too. Doesn't that define "software upgradeable" or am I missing something here?
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Old 11-09-2003, 04:44 PM   #41
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ctwickman, perhaps what you seen was that they had to update the channels under the new codec. However, nothing you or anyone has said actually proves that this was actually some sort of flashable software upgrade done to the equipment. I suspect what you seen was the channels being updated using the new codec. I am certainly NOT in the know, but there is no reason in the world why this man from SIRIUS would pop in here and just throw something out there like that unless HE KNEW for a fact that is the case.

XM made such a big deal about switching codecs and other than on talk, in my opinion they don't sound significantly better at all on music. If one can hear they can tell that, no technical smarts required. I know I have now gotten several new tuners and when they download the streams/channels it takes about as long as you mentioned.
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Old 11-09-2003, 05:38 PM   #42
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Default sound quality

maybe im just smokin crack but i almost have no idea what your talkin about. i created the thread xm eat your heart out and have seen almost no change since.yes some days alt nation sounds great and other days its wavey but i havent seen that much of a decrease at all.question:alot of people say the gen 2 receivers from kenwood sound better than the 1st anytime they do a sound change i notice it.i have a really great system in my car 4 boston acoustics and a 12in kicker substation and anytime theres a sound quality change i can tell.i have a 1st generation and i dont think it would improve my sound that much if i went to the second.i am directly plugged into the tuner from my kenwood mp3 player so i have the best sound possible.i still beleive it sounds absolutely great on certain cahnnels and the others not so great.if i had to compare it to mp3 id give octane 112kbps and id give alt nation 96 because of the swirls us 1 is damn near 128 though.hopefully the codec will be nice but theres always someone saying a new codec will be out soon.i think they have done a great improvement since i got it 6 months ago.i almost canceled it immediately when i noticed it wasnt cd quality i thought that was false advertising from both companies in my opinion but i know sirius is sounding alot better than xm since i created that thread a month or two ago.
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Old 11-09-2003, 05:46 PM   #43
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ctwickman,
Please do not question SiriusRon, he has the credentials and is knowledgeable on the subject. We are lucky of have him share is perspective, let's not compromise this relationship.

His statements are valid in the respect that neither Sirius or XM's tuner are software upgradable. With this said, the 'Updating' you referred to has to do with channel maps and not any audio decoding schemas.

No disrepect to you, but your cynicism for anything but AAC is getting old. Let's wait and see what they have planned before passing judgement.

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Old 11-09-2003, 06:40 PM   #44
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Old 11-09-2003, 07:24 PM   #45
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I've been watching these SQ posts over the past couple fo weeks and have a question. Why can the Siruis engineering staff model or simulate their changes in a lab without subjecting their customers to being 'lab rats'?
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