-
Get involved.
We want your input!
Apply for Membership and join the conversations about everything related to broadcasting.
After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
If you use a disposable or false email address, your registration will be rejected.
After your membership is approved, please take a minute to tell us a little bit about yourself.
https://www.radiodiscussions.com/forums/introduce-yourself.1088/
Thanks in advance and have fun!
RadioDiscussions Administrators
Sound quality has gotten worse the last couple of weeks since they added the Christmas channels. Many channels including the Christmas channels have a sss sound to them. Once the Christmas channels are gone I hope the sound quality improves. Internet Streams sound better.
A
AntronX
Guest
AOL's XM stream of channel 81 BPM is 64kbps and does use SBR (spectral band recreation?) I guess it is aacplusV2 or V1 but definitely with SBR. The sound is as good as 192kbps mp3 with basic encoding, or 128kbps mp3 with high-efficiency multiple pass encoding. On top of that, they use audio processing (Orban?) on this feed, which takes care of "ringing" artifacts on sibilence and makes better use of analog bandwith. Probably the feed for the AOL's stream is tapped off the main processed audio output of the station.
In winamp player, right-click the player, go to Play > URL (Or press "Control"+"L") and copy and paste this link there: uvox://firehose-bbnm.stream.aol.com/stream/22227?authToken=r%3D8754366%26sid%3D21727%26expires%3D1167730913961%26csum%3Dcb9b8e18f2495649a51b79ce7592e09a&uid=WA-A31C984215334B6496FA77A6521A19FC&sessid=2501945C6363414CA09BC4B724FA4F8C
then click open. If you dont have winamp player, download free one from www.winamp.com
Now, why cant they implement this codec technology on their satellite feeds? It will double their sound quality while retaining same bandwith. I think its due to licensing of the codec. Why the codec is free with Winamp and Shoutcast? Is it due to AOL owning winamp and the codec rights? I believe it will take some time before this codec or equivalent is implemented with XM, i hope they are paying their audio engineers well...
Now while you are at it, check out this european station that runs aacplusV2 at 32kbps (WOW!!!)
http://63.251.22.171:8800
and the station i run
64kbps aacplusV2
http://66.90.103.157:8602/
In winamp player, right-click the player, go to Play > URL (Or press "Control"+"L") and copy and paste this link there: uvox://firehose-bbnm.stream.aol.com/stream/22227?authToken=r%3D8754366%26sid%3D21727%26expires%3D1167730913961%26csum%3Dcb9b8e18f2495649a51b79ce7592e09a&uid=WA-A31C984215334B6496FA77A6521A19FC&sessid=2501945C6363414CA09BC4B724FA4F8C
then click open. If you dont have winamp player, download free one from www.winamp.com
Now, why cant they implement this codec technology on their satellite feeds? It will double their sound quality while retaining same bandwith. I think its due to licensing of the codec. Why the codec is free with Winamp and Shoutcast? Is it due to AOL owning winamp and the codec rights? I believe it will take some time before this codec or equivalent is implemented with XM, i hope they are paying their audio engineers well...
Now while you are at it, check out this european station that runs aacplusV2 at 32kbps (WOW!!!)
http://63.251.22.171:8800
and the station i run
64kbps aacplusV2http://66.90.103.157:8602/
I will say AACplus is the future of streaming audio over the Internet. It is downright amazing the quality that comes out of a 28k stream of AACplusV2 + SBR + PS (Parametric Stereo). Wonderful stereo separation, and great audio quality for virtually any station. Perhaps there are a few who want a higher bitrate, for certain types of music.
B
buttonpuncher
Guest
AntronX asked:
Now, why cant they implement this codec technology on their satellite feeds?
************************
I would venture to guess that they are stuck with the codec(s?) that the millions of XM receivers out here are compatible with.
Yes it is amazing the advances they've made with codecs lately....
Now, why cant they implement this codec technology on their satellite feeds?
************************
I would venture to guess that they are stuck with the codec(s?) that the millions of XM receivers out here are compatible with.
Yes it is amazing the advances they've made with codecs lately....
A
AntronX
Guest
Why not add SBR+Parametric Stereo to their existing codec, with new receivers. But old receivers will still be able to play this new stream, but only in mono and with higher quality. For those who might complain, which is highly unlikely, offer to replace their existing radios with new ones for like $20 or something. Once again, there could be legal issues with SBR and PS.
- Status