apax Posted January 26, 2007 Report Share Posted January 26, 2007 I have a buddy I work with and he has Xm I have Sirus and he agrees mine sounds much better.. XM sounds do AM if you know what I mean.. but it could be your speakers too.... my 2 cents... just wait until they merge.....if they do....... Quote Link to post Share on other sites
Cincycaddy Posted January 26, 2007 Report Share Posted January 26, 2007 I have been less than impressed with the XM sound quality. Maybe they should go for less channels and better quality. All boils down to bandwidth. If your pipe is only so big, your either A. Gonna get alot of small things through it or B. Gonna get only a few big things. I"d rather have the quality over the quantity. Chris. Quote Link to post Share on other sites
rapayn1 Posted January 27, 2007 Report Share Posted January 27, 2007 Countdown, I think it is your speakers and your amp. However, some channels are sounding like they are coming out of a tin can. SOME, not all. In my experience, the following channels are VERY good. I'm talking sound-wise and not necessarily what they play. LOL!!! Channel 8 - The 80's Channel 80 - The Move Channel 81 - BPM Channel 83 - Chrome Channel 62 - Suite 62 Channel 64 - The Groove Channel 65 - The Rhyme Channel 66 - RAW Channel 67 - The City Channel 90 - Fuego Channel 71 - Watercolors Channel 72 - Beyond Jazz Channel 115 -Radio Disney Channel 116 - XM Kids Channel 20 - 20 on 20 Channel 23 - The Heart Channel 27 - Cinemagic Channel 75 - Hear Music Channel 43 - XMU Channel 45 - XM Cafe Channel 47 - Ethel Channel 48 - Squizz Those above channels sound as good as CDs and certainly no worse than a clear FM station. The rest, are not consistent and can sound like VERY weakly encoded MP3s at less than even 128k. Sports channels can REALLY suck. The French language stations are God-awful. The Traffic radio stations sound like they are transmitting from Mars in a soup can with nylon string. Anyway, it seems like you have fallen for the Digital is better hype like many here in America. Digital is just that ... digital. Ones and zeros. It's not better or worse, but can be both. Everything digital is not the best. People have GOT to learn this lesson. When digital cameras first came out, their pictures were not as good as an "old fashioned" film camera using silver. The technology is a LOT better now, but a good film camera still trumps almost any consumer grade digital camera. The highly taughted CDs are not all the same either. Most are not recorded DDD (digital, digital, digital). Most are AAD (analog, analog, digital). Plenty of CDs sound no better than a dirty vinyl record that has popping hissing, static, etc. All of the samples being used are from old vinly records that the artists are using. I can go on and on, but you get my point. XM is good for what it is. The ability to listen to ONE station all across the country. The ability to not have to deal with two stations overlapping with each other and cancelling themselves out. Drifting stations are a thing of the past. For that convenience, you give up some fidelity, but since you are in a car, truck/suv, minivan, etc. it really doesn't matter due to the road and vehicle noise. So, in that environment, it is plenty good enough. Poor speakers will affect the sound. A weak amp will affect the sound, but that is true with AM/FM, CD and cassette tapes too. Quote Link to post Share on other sites
SuperH Posted January 30, 2007 Report Share Posted January 30, 2007 I'm about to cancel XM over the bad quality of audio. All of the streams are done with the aacPlus codec, which is very efficient and does well. It reproduces all frequencies above about 4.5kHz (they are synthesized). Most music channels on XM however, broadcast at 32 or 40kbps, which is extremely low, but again with aacPlus it doesn't sound that bad, especially at 40kbps. The Clear Channel stations and a couple others run at 48kbps, and the XM HD channels run at 56kbps (Fine Tuning and XM Pops). The problem nowdays though is really the Neural "PowerLift" multiband compression algorithm that they use. It essentially "levels" everything out -- the loud sounds are attenuated and the soft sounds are made louder. You can hear this problem especially on the outros of songs, where it should get softer, however it just sounds about the same level. Thank goodness I have Sirius too. They've made marked improvements of audio quality over the past several months. Quote Link to post Share on other sites
RezaMesa Posted March 6, 2007 Report Share Posted March 6, 2007 i too am not impressed w/ the XM sound quality.... i was expecting CD type of sound...... "digital" my ass!! Quote Link to post Share on other sites
tillithz Posted March 6, 2007 Report Share Posted March 6, 2007 whats funny is my xm experience has been pretty much pioneer products only. Up until I got my acura with it in there for a few months free. The xm sounds a world of difference better then the pioneer. Granted, my acura's stock system has dolby 5.1, but the music just sounds so much more fuller. not hallow or tin can sounding. Quote Link to post Share on other sites
rapayn1 Posted March 7, 2007 Report Share Posted March 7, 2007 Good point. I wonder how many people here complaining about the XM sound quality are listening with factory stock systems that are nothing to brag about. While your Acura may have a killer sound system and Dolby 5.1 built-in, most vehicles do not, and it is those people who might be bitching the most about the XM sound quality. With 8 Polk Audio speakers in my SUV (9 if you include the 12" subwoofer), two amps (one for the head unit and one just for the subwoofer), soundproofing material, good cables and wires, professional installation, etc. I'm happy with MOST of the XM satellite channels. It's better than FM radio and for all practical intents and purposes, equal to a CD that is being played in my SUV. Maybe on my home stereo, I would give the edge to the CD and/or my Minidiscs, or DVD audio discs. In the SUV cruising along between 10-70 MPH, the sound is quite acceptable Quote Link to post Share on other sites
SuperH Posted March 26, 2007 Report Share Posted March 26, 2007 XM recently improved their processing which gave sound quailty a bit of a boost. For the record, I am listening on a couple of extremely nice systems (one being the AVIC-D1) that play every little detail. The compression artifacts are less apparent, and there is less pumping from dynamic range compression. Quote Link to post Share on other sites
mciampag Posted March 26, 2007 Report Share Posted March 26, 2007 Try Sirius if you don't like the XM sound quality. I've got XM in a car with a nice aftermarket system, and Sirius connected to a D3 and stock Mazda speakers. The Sirius is definitely a better sound. Still not as good as my iPod or CDs, but much better than XM. The only downside is that the D3 Sirius interface is absolutely horrible. Quote Link to post Share on other sites
nxtjv Posted April 14, 2007 Report Share Posted April 14, 2007 FM is by far the closest match to CD quality. The problem is the reception. Sat radio fills a void in the coverage, but really does nothing to address quality. The fact is bandwidth is the the issue. FM uses no bandwidth so it doesn't matter how much data is being sent, its just about how much the radio station wants to pay for the signal to reach a broader audience. The good news is (and maybe a bit disconcerning for those fearing the end of sat radio) WiMax is rolling out in cities everywhere and bandwidth is going to become a lot more accessible by everyone and in much higher volume. So for the time being Sat radion lets you drive across North America or off roading in the backcountry without loosing some sort of entertainment/connection to civilization, but everyone knows the quality is less than "bumpin". As far as XM vs Sirius, friends in San Diego have Sirius and the quality sucks even with their kickn systems, my pops has sirius near Miami and his stock passat sounds great, I live in whistler canada and XM sounds good enough to crank and hear the sub go boom... although it does seem to vary betwween stations; some stations are broadcast in better quality espcially talk radio, its super chitty Anyway that's my 2 cents, i still love my XM radio. Quote Link to post Share on other sites
naplesbill Posted April 14, 2007 Report Share Posted April 14, 2007 I have both XM and Sirius connected to a D3. The difference between XM and Sirius sound quality should be embarassing to XM. I have the Pioneer XM/NavTraffic tuner and a Sirius SIR-PNR1. The Sirius sounds so much better and it sounds much better than FM. If only the Sirius had the interface improvements like the XM tuner does. Quote Link to post Share on other sites
whtcrxghst Posted April 14, 2007 Report Share Posted April 14, 2007 I completely agree. Same equipment too I have both XM and Sirius connected to a D3. The difference between XM and Sirius sound quality should be embarassing to XM. I have the Pioneer XM/NavTraffic tuner and a Sirius SIR-PNR1. The Sirius sounds so much better and it sounds much better than FM. If only the Sirius had the interface improvements like the XM tuner does. Quote Link to post Share on other sites
naplesbill Posted April 16, 2007 Report Share Posted April 16, 2007 Oddly enough, moving the antenna to the roof did improve the sound a bit. It sounds much less tinny now. It may just be a coincidence though. Either way, Sirius still blows it away. Quote Link to post Share on other sites
Jamesgatz Posted April 20, 2007 Report Share Posted April 20, 2007 I have had XM for about 4 years now, first on a Pioneer deh p7300, then as part of the factory pioneer system in my scion tC, and now with the D3. The sound quality I am experiencing on the D3 is absolutely horrible. The stock XM sounded so much better, I just don't get it. I am so sad, as I have grown to love XM, but this quality now sounds like a 32k mp3. Anyone have any thoughts? I have the two antennas (xm and nav) right next to one another, that is the ONLY thing i can think of that would cause this, but even that doesn't seem like it would do anything. I am about to cancel my XM. Quote Link to post Share on other sites
whtcrxghst Posted April 20, 2007 Report Share Posted April 20, 2007 My XM has always sounded the same on a couple alpine decks, then my D1, and now my D3. Never had a factory system with it I have had XM for about 4 years now, first on a Pioneer deh p7300, then as part of the factory pioneer system in my scion tC, and now with the D3. The sound quality I am experiencing on the D3 is absolutely horrible. The stock XM sounded so much better, I just don't get it. I am so sad, as I have grown to love XM, but this quality now sounds like a 32k mp3. Anyone have any thoughts? I have the two antennas (xm and nav) right next to one another, that is the ONLY thing i can think of that would cause this, but even that doesn't seem like it would do anything. I am about to cancel my XM. Quote Link to post Share on other sites
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