My wife and son had cars that came with 6 months free, but I don’t think they 
used it or paid to keep it, and I’ve never listened to it.  But I have always 
heard that the quality was poor and the reason to get it was no commercials, 
nationwide coverage, and channels dedicated to one kind of music or talk.  
Personally I like to get out of my bubble sometimes for the chance to hear a 
song or artist or genre I never heard of.  Still difficult since almost all FM 
stations are owned by big corporations and rotate the same limited list of 
songs and would never have an actual DJ who would pull out some obscure song 
and play it just because he felt like it.  (No Dr. Johnny Fevers or Venus 
Flytraps anymore.)

 

Bottom line though, through the years I have always heard people say both 
Sirius and XM quality was sub FM.

 

If this article is correct and the average bitrate is 32 kbps, that would be 
voice quality, not music quality, MP3 would be 160 or 320 kbps.

 

http://www.carstereochick.com/2015/04/25/why-siriusxm-sucks-what-to-know-before-you-buy-subscribe/

 

I saw another article that said the bitrate can vary by channel, but that the 
more channels they broadcast over the satellites, the less bandwidth they can 
devote to each channel, and they feel the key to  increasing revenue is more 
channels, not better sound quality.  I also saw that they use some kind of 
perceptual or neural encoding to get the bitrate down, and that leads to 
artifacts and a “swirly” sound, whatever that means.

 

FWIW, this article claims that you can use your subscription to stream over the 
Internet, if you’re willing to take the hit on your mobile data plan, and the 
quality will be better.

 

https://www.cnet.com/roadshow/news/make-your-cars-satellite-radio-sound-better/

 

Both articles also say that sat radio will sound better in some cars because 
the hardware has post-processing after the tuner to recreate some of the sound 
quality that was lost in encoding.  I guess that’s kind of like the TV sets 
that take 1080p 30fps input and fill in the missing information to  drive a 
2160p 60fps panel.  Or colorizing a B&W movie.

 

The problem seems to be mostly that sat radio has a whole legacy base of 
installed satellites and car radios that are not upgradable via firmware, so 
while audio encoding has improved, the whole sat radio industry is locked into 
old technology because you can’t tell all those people their car radios have to 
be replaced, even if you were able to launch new satellites or reprogram the 
existing ones.

 

 

From: AF <[email protected]> On Behalf Of Chuck McCown
Sent: Thursday, December 27, 2018 8:34 AM
To: AnimalFarm Microwave Users Group <[email protected]>
Subject: Re: [AFMUG] OT: XM Radio

 

Depends on the channel. Truckers seem to like it. Me, I am too cheap. FM is 
free and NPR doesn’t have too many commercial breaks.  I have three presets: 
NPR, classic rock, contemporary c&w

Sent from my iPhone


On Dec 27, 2018, at 7:11 AM, Adair Winter <[email protected] 
<mailto:[email protected]> > wrote:

because no commercials and the same stations everywhere it pretty cool.

 

 

On Thu, Dec 27, 2018 at 8:00 AM Matt Hoppes <[email protected] 
<mailto:[email protected]> > wrote:

We just got a new vehicle at work that includes XM radio for some period of 
time for free. 

Anyone else who’s had experience with XM: does it always sound like it’s 
compressed, digital and low fidelity?  Why would anyone pay a subscription for 
this when I get high-fidelity FM free?

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-- 

Adair Winter
VP, Network Operations / Co-Owner
Amarillo Wireless | 806.316.5071
C: 806.231.7180
 <http://www.amarillowireless.net/> http://www.amarillowireless.net 
<http://www.amarillowireless.net> 


 

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