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About LongtimeListener

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    Music Chair
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    Hifi land

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  1. LongtimeListener

    USB vs Coax - my (interesting) impressions

    This is funny, exactly my findings after recently bought one of these HAT for my Raspberry Pi HIFI Digi+ Pro I have a Marantz HD-DAC1 with asynchronous USB. They claim a special shielding of the USB input to remove any RMI. I bought the HAT for playing a bit around with SPDIF/COAX but soon found out that their source clocking is inferior to the receiver/DAC clocking of the asynchronous USB solution to handle the jitter. I also tested with the Toslink cable and it was worse.... Cheers
  2. Well, 5db is the lower end measured, it fluctuates between 5-10db. Yes, it is a quiet place where I live. In the night I sometimes want to open the window just to find them open already. When listening to music, everything is closed to shut out any noise like birds etc. I need that low noise floor as classical music has very quiet passages, sometime just rises out of a pianissimo. Since real orchestras are much louder in average (they produce 120db) as me listening at home, those pianissimo parts would just not been heard. I have to admit, though, that I did not measure with a calibrated sound meter. However, the measurement could be perhaps 5db off but certainly not 25db off. A quiet library is quite noisy. Test it out next time and sit down with closed eyes. You will be surprised. If you have 30db noise level in your "quiet" room you live in a very noisy place. 45db is what I have if eg a flute plays gently a pianissimo in an orchestral setting (microphone far in the room).
  3. Well, it is a classical music piece, it is very dynamic (Jospephs Legende, Staatskapelle Dresden, Giuseppe Sinopoli, P 2000) from the Deutsche Grammophon. Sorry for the long break in responding, I was away. Thanks everybody for the clever responses and thoughts. I have written to Deutsche Grammophon (DG) and had a lovely time with their autoresponder. With other words they give a .... and are satisfied with their work and are happy bunnies up there in Germany. To the discussion about the db range. Of course I do not listen to 120db music. My room noise measured usually is 5db with the audio system idle. There is some clock and fridge responsible for those 5db (and perhaps my stomach). A very loud classical passage, eg the sunrise of Zarathustra or the Josephs legend mentioned above produces during a fortissimo a short peak of around 82db which one perceives as LOUD and stomach punching. Listen here if you like to Josephs Legende Finale What I want to say is: there is no need to castrate a medium like the CD which is capable of a dynamic range of 120db by lousy music engineering. The lesson for me is: Check the sound file in an editor after purchase Give it back to the shop where you bought it if it is castrated and Ask the money back
  4. LongtimeListener

    Are people really this dumb?

    They are actually quite good. They have a proper socket to sit in. The earth is on the sides and connect immediately before you push the plug down into the socket making contact with the earth before any other + - contact is made. Therefore you need no fuse in the plug (like UK) or switch at the socket (like UK, US, AUS). And they sit so much better and secure in that socket, other than the Australian stuff which falls out by itself, is unsecured from any forces affecting the plug if you are unlucky. Of course you need proper walls where you place the deeper sockets, which is another issue in Australian buildings...
  5. Dear friends! This was an April 1st Joke! I entirely made up this story! I hope, you are not too crazy with me ... My next topics will be serious ones again, promised (except it is the 1th of April, of course )
  6. Should we change our definition of the music chain? We know all the saying that every chain is as strong as it weakest link. All our efforts go into optimising those music chain links/components to get the audiophile sound experience we enjoy so much. I came across the article here at Reddit "Headphone Modding" and although I did not try any of the moddings discussed there it made me think about the music chain again, and how minimal changes sometime can have a huge impact on the sound. I also realised that we always talk sound system and see the loudspeaker or the headphone as the end of the music chain. Some include the important aspect of room acoustics, though. But when you take a closer look on this subject, this is not the end of the sound chain. In the end the audiophile sound experience is created in the brain. And to get there, there are a couple of additional chain links to consider. The final push to investigate this part of the music chain came from Kerry, my hair dresser. She is an audiophile person, too, as we discovered during a hair cut session. And she stated that the better hearing women have is due to the fact that hair growing in the ears of most men blocking slightly some sounds reaching the ear drum. Since ear wax is known to have an impact on hearing, the sound blocking/dampening of hair in the ears was new to me. But it makes sense when you think that Headphone foam can make a difference in sound quality. Certainly you will need for a start a very good audio system and remarkable recordings to prove the difference. I was thrilled and wanted to take this phenomenon to the test. It came handy that I happen to know a ENT, John, from the audio club I am a member with. Kerry the hair dresser was immediately on board. I was offering my music room with loudspeakers. The music samples where carefully sourced and should include Rock, Pop, Jazz and Classical Music, especially music with fine textures and a wide range of diversity. All we needed now was to find 10 audiophile people with currently ear wax and lots of hair in the ears. We started by sending out a request to join our little test to all club members. Our club has about 112 members and mostly men, essential for the hair growth. However, this turned out to be the most challenging part as many saw the requirements to take part as embarrassing, to say at least. After a month time we had 3 willing to take part. After more talks and sending out emails we finally got 8 people together, me included. The outlook that you would have clean from hair freed ears afterwards might also have helped to get the numbers. After a lengthy discussion, we decided for the following test procedure: All participants where checked to ensure they had ear wax present, and had hair growth on the outer ear and extending into the auditory channel The participants then listened to sound samples using a form stating for each song the transparency, resolution, sound stage, bass stage After having collected the baseline of the music impression on the participants, ENT John put his device to work and removed the ear wax via micro suction from all participants. The test was repeated again using the same test procedure with the same form. And indeed most of the listeners could hear a difference. Especially the middle and high frequencies were presented much clearer, more distinct. Even the sound stage was seen by some listeners wider and the location of the single instruments was clearly better. Only a few disagreed on the sound stage matter but all confirmed the improvement in the middle and high sound regions were more airy. As the influence of ear wax on the sound transmission to the ear drum might not surprise, our next test stage was the exciting one: Would the removal of the hair make a difference in the sound transmission and therefore increase the quality of the sound experience? Kerry removed carefully all hair from the ear and auditory channel in all participants. The test was repeated again using the same test procedure with the same form. And, indeed, every participant reported a new clarity in both the mid range and the high range. Interesting was that even the low range benefited slightly. Overall, especially Jazz and Classical Music benefited a little better from the sound stage improvement. All music genre sounded more natural and balanced throughout. What this tells us is, when we think music chain we should not stop with the loudspeaker or headphones. We should include the ear and there especially the auditory channel to the ear drum. What is a excellent audio system worth blasting the music into the room with excellent perfection if those sound waves cannot reach our brain? So it remains only one last question: What if you don’t like the sound of your system any more after hair and ear wax removal? Easily fixed, just wait till the ear wax has build up again and the hair is grown back to give that muffled sound you love so much. Happy listening ;-) PS: One of the participants came back mentioning that he now hears his wife’s high pitch voice which is irritating him. I pointed him to the solution above.
  7. I think with the CD having a dynamic range of 120db, there is just no need to compress the dynamic range of a piece. In digital recordings is no technical background noise. Amplifiying over this whole range is perfectly possible...
  8. Well, it is a classical music piece, it is very dynamic (Jospephs Legende, Staatskapelle Dresden, Giuseppe Sinopoli, P 2000). And there is a audible distortion which I have as a bit of FLAC file. I am just reluctant to upload it somewhere as I am worried somebody playing it damages his/her soundsystem and I don't want to be responsible for that. I certainly have sent it with my complaint to the company. No response so far ....
  9. Very much true. However, I think it is good to bother them with this as much as possible. In the future I will check all my downloads and CDs for this and will return them to the merchant getting a refund. That's all I can do really at this stage... Cheers
  10. No answer, yet, from the company. They have usually a good name in the market. I will poke them soon again to make them explain what they have done to this beautiful recording....
  11. Hi all, Since my quest for better sound has worked well, I sadly discovered that not only the musical detail of my recordings is revealed but also the flaws on at least one of my recordings, too. I am owning that CD since 2003 and, although it was always a bit rumbling for my taste, I was quite happy with it. It is a very nice interpretation of the piece which I like a lot. Now with my enhanced sound system I suddenly could hear a noise that is not belonging to the sound scape an orchestra produces. This noise is present in both the CD and the rip I used for the investigation below. I took the time to investigate the issue and discovered, that the CD does not cover the total dynamic range, rather cut off the dynamic in multiple places. I have attached my investigations below. You can already see in the Total View that the sound waves don't fit in the range. Zooming in reveals indeed that the sound dynamics are tampered. I am in the process to approach the reputable producer of this CD for an explanation and see what their comment to this is. In times where those companies are worried about piracy I always wonder, why they cannot provide pristine faultless music to those who pay for it. This is in my eyes a big selling point and I am amazed why those companies not picking up this opportunity. Cheers
  12. LongtimeListener

    Volumio vs Daphile sound

    I upsample now only to the 24bits and leave the sample rate native. And yes, I think the sound is better, more balanced and transparent. Really nice . Thanks for the hint. I have put the audio buffer size to 4MB leaving the buffer before play with 10%... Cheers
  13. LongtimeListener

    Volumio vs Daphile sound

    That might it have been , you see I did not know what I was doing... I will give this a shot an see again.... Cheers
  14. LongtimeListener

    Volumio vs Daphile sound

    My Marantz HD-DAC1 does 192K but what do I set with the bits? When I put it to 48 lots of pops and clicks...