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Domain: codingtechnologies.com

Stories and comments across the archive that link to codingtechnologies.com.

Comments · 10

  1. Re:It's an FM transmitter, not an MP3 transmitter by ahillen · · Score: 1 · on MP3 Transmitters Now Legal In the UK

    AAC+ (or aacPlus, or whatever) seems to be some kind of enhanced AAC (apparently additional algorithms to further reduce the bit rate while hopefully maintaining quality):

    http://www.codingtechnologies.com/products/aacPlus .htm

    They claim "Excellent quality stereo down to 24 kbps". That may be optimistic, but I don't see anything that suggests that you are restricted with the bit rate.

  2. Use decent modern compression for streams by springbox · · Score: 2, Interesting · on Low Cost Webcast Optimizations?
    For audio, use aacPlus (probably not free) or Ogg Vorbis (free!) Mainstream players support these (like Winamp.) Don't push junk like Realplayer. Vorbis alone will save a lot, and even super low bit rates will end up sounding decent compared to other compression technologies (I'm looking at you, MP3.) You can also set up a free streamcast server and use vorbis with it.

    For video? I'd recommend XviD, and not just because I use it almost exclusively, but it creates a compliant MPEG-4 video stream (compresses nicely), which will hopefully be streamable by any player that supports MPEG-4 video.

  3. mp3pro isn't completely dead by tangent3 · · Score: 1 · on Thomson Releases MP3 Surround

    Well, it's true that mp3pro didn't really catch on due to the heavy competition in the 64kbps arena where it goes up against Ogg Vorbis, AAC (HE) and WMA, and performs rather decently. But the "pro" portion (spectral bitrate replication) lives on as it can be plugged into just about any codec, and is now used in HE-AAC encoders such as Ahead Nero's.

  4. Re:Once again.... by zurab · · Score: 2, Informative · on Thomson Releases MP3 Surround
    Plus if its not backwards compatible it wont be adopted.

    Said an immediately modde up 5-digit /. poster without having read as much as a second sentence of the blurb which says:

    They claim that MP3 Surround supports high-quality multi-channel sound at bit rates comparable to those currently used to encode stereo MP3 material, resulting in files half the size of common compressed surround formats while maintaining backwards compatibility.

    That's the second sentence for crying out loud. The article itself, which nobody could ever be asked to read before commenting or moderating, says:

    At the same time, the new format offers complete backward compatibility to any existing mp3 software and hardware devices.

    For the audio codec impaired, MP3 Pro that's mentioned in the blurb is MP3 + SBR. If you want to use SBR, which has more to do with guessing and reconstruting the sound rather than compression, then you are probably much better off using AAC + SBR. That's one of the reasons, as far as I can tell, why the MP3 Pro never "took off."
  5. Re:Lucky British... by GeneralBrakcet · · Score: 1 · on Digital Radio With Removable Flash Storage

    "I have a free trial of XM right now, and let me tell you, the sound quality leaves something to be desired. To me it sounds like a 96kbs encoded mp3."

    XM uses accPlus from Coding Technologies.

    Your results will of course depend heavily on the equipment your using to listen to the stream.

  6. Re:CD Baby - the word from the backend by linuxbaby · · Score: 3, Interesting · on iTunes One Year Anniversary Sparks Comparison
    Do you use Apple's AAC encoder for both of the AAC styles or only the one going to iTMS?
    We only use iTunes to encode the AAC128 for Apple iTMS. For the AAC256 we use the AAC encoder from Coding Technologies because it runs on FreeBSD. We have 25 FreeBSD boxes for encoding (and storage, mainly. 1.3TB each) but only 3 Macs.

    Have you seen hydrogenaudio.org's listening tests , especially the last multiformat test?
    Yep. But again, for when we need MP3, I still think lame (on our FreeBSD boxes) is the best choice.
  7. Re:Satellite Radio XM PCR by wronskyMan · · Score: 1 · on Shifting From P2P To Stream Ripping

    It appears to be a variant of AAC.

  8. Re:Satellite Radio XM PCR by Anonymous Coward · · Score: 2, Informative · on Shifting From P2P To Stream Ripping

    The biggest problem with this is that the stream is encrypted, or, at least, obfuscated. The transcoders are kept somewhat secret. Coding Technologies knows how though...

  9. SBR by zurab · · Score: 3, Informative · on Listening Comparisons For Audio Codecs At 64kbps

    It's worth pointing out that at least MP3Pro and HE-AAC from tested codecs use SBR. SBR is a method (mostly post-process) that allows transmission of lower half of audio spectrum, and have the decoder "guess" what the the other part of the spectrum would have been. While this allows for "cool-sounding" audio at low bitrates, the generated part of the spectrum is not actually an encoded original audio, but rather its "guessed" reconstruction. SBR is also patented.

    Search for more info on SBR if interested, like this one.

  10. Linux version in 3q2001 by slothdog · · Score: 2 · on MP3Pro Released

    Actually, it specifically says on this page ( http://www.codingtechnologies.com/mp3PROzone/faq.h tm ) that: "Libraries for the Linux operating system will be available during the third quarter of 2001."