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John Dyson

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  1. The thing is -- I am not enhancing anything. Everything is standard. The onlything that I see as questionable at all -- the Q value of 1.414, which I think is high, but also works perfectly for the Anne Murray albums. I check a lot of material, not just my 'favorites'. If I just checked my favorites, then nothing would work correctly. Methinks they are doing EQ before FA encoding. Or, it might not be FA, but another kind of compression. On the full FA decoder, Supertramp has always sucked -- and I should have probably stopped it before trying. I am too fast to ac
  2. I'll look at that -- I don't use a DAW, even using something like audacity very seldom, even though it is very useful at times. Everything is done in FP (or should be done in FP) until the last step. My scripts are writtten by me, so are not perfect. I could certainly have done a conversion, using SoX, which stupidly cannot handle floating point inputs greater than +-1. Sometimes, I mistakenly depend on something that will cliip. When I am aware, careful andthink that I might want to do EQ, I use the decoder in --equalizer mode, then simply do --outgain=-10. Another alternati
  3. Okay, you are right -- I agree. I got confused on snippet vs. full, then somehow got it all jumbled.... Sorry about that. There are portions where there is A LOT of 80Hz, but I got it scrambled where it is. That big bass sound is too much for my taste -- for some reason, I prefer lesser bass, more about the transient/structure. Perhaps eneded up with a bias after workiing on listening for transiets/signal structure/tells/glitches. Yea -- I know a song by its glithces. I like those glitches, they sound good to me :-).
  4. Off topic -- after this, no further discussion about it -- we gotta focus on the project issues: Honestly -- I am having severe comprehension problems right now. It has been a bad time all around for me I can talk, I can write (excepth with organization problems)I can think, but the other interfaces to the world are scrambled, and I get imperceptable glitches all fo the time -- I dont' feel them, no-one sees them, but disrupts some kind of activities and are diagosed.. Sometimes, if my finger is on a key to skip to a next song, the key gets struck without having control over it
  5. There is one hell of a lot of approx 80Hz on down. If you are talking about super-low bass, there is an intentional rolloff at 18.75Hz. The decoder has a *CORRECTIVE* rising response below 80Hz to about 30Hz, then starts trailing off. I carefully rolled off at/below 18Hz. To me, the approx 60-80Hz is repressive. But, I have headphones that are close to flat down to about 10Hz. The headphones with certain kinds of music can reallly be repressive when there is super low bass - my ears almost pop from air pressure :-). I don't like strong bass very much -- it is repressive t
  6. Snippets for Crisis, What Crisis? Again, tell me about the bass -- I don't know... https://www.dropbox.com/sh/lgccx2jdrj1dgtf/AACCQwLxlAyEZPE_1AHX8QWOa?dl=0 The Supertramp examples are kind of strange. Is this what they are supposed to sound like? This is a bit of a quandry for me. They are definitely expanded, but the strong midrange and lows definitely change the character that I am used to hearing. Have I been hearing wrong. Everything else seems to work right with similar settings (The calibration level was a little odd, but would be nor
  7. Snippets for Crime of The Century -- next will Be Crisis, then Solitude Standing. Sorry that they must be snippets: https://www.dropbox.com/sh/iazyjhbyksjs54e/AAChBL9dLKkY75-ksQLKvoe4a?dl=0 I need input on this about the bass. When I reviewed how the bass should be, everything pointed to this. It seems extreme, but also it has the indications that it really was recorded that way. Most other recordings are not this 'interesting' in this regard. Anne Murray's stuff sounds REALLY GOOD with this current setting, and I am strongly bass adverse. Somehow this setting
  8. About those who help. I am adding a contributors list to the decoder that will be displayed on a new 'license' switch. Where else can I put it? Let me know. No matter if we are 'best friends' or not --I am happy to add credits lines for those who substantively contribute, or really try. I tried to start doing it in the docs, but the goal will be to add it there also. When the time comes up, we should talk privately about this. I will not start the effort until maybe a week or so from now. As long as the decoder is good, I'll be happy to do it. If the decoder
  9. I should have them ready by +2Hrs. Will announce after making public/private versions. Also, I will leave the lowest level of phase descrambling enabled. It really IS needed because the DA decoder is very clean/accurate no slop, and the phase scrambling on the recordings is terrible. There might be minor freq response wobbles because of it, but they WILL be wobbles that are small enough to be unnoticeable. The phase scrambling is horrendous. The decoder can REALLY clean them up, but with the frequency response police active now -- humor intended, I'll have to follow more rul
  10. I'd suggest some of the more decoder challenging recordings -- maybe 'Crime: School, Crime: dreamer, Crisis: Easy Does it? School because of the kind of bass. Dreamer because of the vocal mix Easy Does it because of the sustained low level material, might be gating? For Vega, I'll look around on Solutude standing, see if I have good (instead of garbge) copy. Send at least one cut of that? Do these sound like good choices? (Because of my time allocatioins today, I'll make a 'D' release,publish it on the site, then do the decodes.)
  11. If we are talking about that kind of error, lets start with the latest decoder. Anything else really is a waste. In fact, I just changed the Q of a filter, because the 'C' release was probably wrong. I know that there were probably fixed errors, but a lot more needs to be 'fixed' when making those changes. I can internally make drastic static changes, and still show the same frequency response as being measured here. It will then sound different, with the same static response. Lets start with a decoder that actually sounds more similar first -- that would b
  12. Yea -- imagine the true distortion created below 1kHz if they don't match. It really DOES distort if the phase is screwed up... It isn't just phase issues that happen, it is true distortion that happens in the encode/decode cycle. Any EQ other than simple 1st order is JUST WRONG. (That is, except in the <100Hz region, when used, the 2nd order Q values must reasonably match.) I was warned about this, by a relatively well known recording pro, a long time ago. Trying to fix something with a dynamics processor by simply adding EQ is a cr*pshoot. Might help, but probably not
  13. Between two weeks ago and now, might as well be comparing with the single band toy. Looking at frequency response is cool... It will be interesting to compare before and after, once we get raw non FA material. In fact, if you do have the S&G album without FA, and I have FA versions -- if you could, lets make arrangements for some longish snippets of the original, non-FA material, and I can complete the decoder to be totally accurate. This would give the before and after that I have been looking for.
  14. There is no +-0.1dB unless you compare with the original, pre--encoded materials. It might be fun to measure the DolbyA decoder also input/output instead of through the system. It will compare similarly at a limited range of levels, but what has been learned? Steady state? The above is rule #1 in the Audio Processing 101 class.
  15. The original design was analog, you really do want to use 1 pole EQ, or it will not be complementary. You can sometimes get by with linear phase, and I have a linear phase religion when doing my own designs from scratch. When doing certain analog applications where the phase could be important, unless very careful, use the normal analog style emulation (minimum phase.) On the DolbyA front end, I got by with linear phase for only one reason -- the Q was 0.420 and 0.470. For the 80Hz Q=1.17 I simply used an IIR filter. An IIR filter wouldn't work for the 3kHz and 9kHz because they were no
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