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Showing posts from May, 2024

Open invitation for Joe Bloggs of HiBy Music for on-line discussion about Hi-Res music and NOS DAC

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 Open invitation for Joe Bloggs of HiBy Music for on-line discuss about Hi-Res music and NOS DAC. Looks like Joe Bloggs of HiBy Music is having a limited understanding of Hi-Res music and NOS DAC for playing back Hi-Res music based on my recent discussion with him on Head-Fi.org and it seems that he has his own view about Hi-Res music and NOS DAC. I hereby invite Joe Bloggs openly for joining an on-line discussion about Hi-Res music and NOS DAC so that I can learn more from him about these topics as I am not able to join any on-line discussions on Head-Fi.org meaningfully because they control my free speech there . We can continue our discussion here. Here is what you wrote  and my reply : (note: his comment was related to a thread I created on Head-Fi regarding Hi-Res music) Joe, if you don't feel comfortable (for whatever reasons) in joining the discussion here, please do feel free not to do it as I don't want to push people. (But as I said, if you really want to discu...

DSD and Nyquist frequency?

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DSD and Nyquist frequency? TLDR: Does the concept of Nyquist frequency can be applied directly to DSD (like what it is applied for PCM)? i.e. using 44kHz sampling rate with DSD sampling is good enough for perfectly reconstructing audio signal with frequency up to 22kHz (i.e. the Nyquist frequecy of 44kHz sampling rate)? Is DSD sampling same as PCM sampling?  I bet people who know the difference between DSD and PCM would know the answers for the above questions are No and No. Why people still talk about Nyquist frequency (i.e. sampling rate / 2) with DSD like below : Why the moderator mentioned sampling rate/2 (i.e. Nyquist frequency) with DSD sampling?  Is the moderator really confused between DSD and PCM sampling? I am not sure but I'd suggest to him please don't give out incorrect infomration (as he carried the role of the so-called "Sound Science Moderator"). Some people (I am not talking about the OP) without (or with only limited) critical thinking would really b...

Is pseudo scientist smart? Hmm....

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 Is pseudo scientist smart? Hmm.... (You want to be as smart as Tesla or as "Monty"? It's your choice) I think some pseudo scientists are very smart especially the one who created the pseudo science claims. They need to have a good understanding of related subject in order to create convincing pseudo science claims as they have to provide convincing facts while they also need to hide the other parts that would debunk their claims. Mothy's video is a good example . However, for the pseudo science  followers, they just following these pseudo science leaders and blindly believe what these leaders said without a second thought (or without using their critical thinking skill). These followers may be "knowledgeable" but they are defintely not smart. One of the aims of my blog is to make these followers awake. Don't fall into the traps set up by these pseudo science leaders (as they usually have their own agenda in pushing their claims) I really hope that more ...

One of red flags of Pseudo Science: Double Standards

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One of red flags of Pseudo Science: Double Standards TLDR: Double Standards is not a single indicator to show Pseudo Science but it should help you to put a red flag in your Pseudo Science alert. Is peer-reviewed research important in Audio Science? Have a look of a reply from a " peacekeeper ":  Yes, I agreed peer-reviewed results formed the building stones for modern science. We trust peer-reviewed research more than anything else (for objective scientific analysis).  (BTW, a forum called itself as "Audio Science Review" does not mean they are indeed talking about science. The forum is indeed known as " cult community " to be exact. Naming is another art of Pseudo Science. ) However, the very same " peacekeeper " applied a different standard when he is challenged about not using peer-reviewed system : " A lower level of significance/confidence than a professional or scientific (peer reviewed) result "? What he is talking about? low...

Is there something wrong with my message?

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 Is there something wrong with my message? I attempted to reply for the thread on Head-Fi. The OP of the thread is confused between 384 kHz/32 bit sampling rate and the audio frequency range of 20-20kHz.  How you classify my reply as shown in the following screen captures: 1. "no content message"? 2. "a message that has an inappropriate content"? 3. "a message that has personal attack"? If none of the above, what would be the reason for the moderator to delete my message instead of approving it? Things are getting weird and weird these days. Looks like the moderator has a lot of pressure. I hope he is doing well. Please do take care. Pseudo Science Red Flag Note: Remember the item 5 I mentioned in  Measurement accuracy, precision and Pseudo Science (no-pseudo-science.blogspot.com) ? i.e. 5. Somone stop you from telling the truth that is incompatible with their claim. Based on item 5 above, the stopping / deleting action put a red flag for the Pseudo Scien...

Measurement accuracy, precision and Pseudo Science

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 Measurement accuracy, precision and Pseudo Science Looks like I spent way too much time these days related to my experience in a recent incident . Let's move on and come back to the focus of my blog, i.e. use critical thinking to debunk pseudo science claim How many people can tell the difference between accuracy and precision? I bet if you are into gun, you would probably know it for sure .  Look at the below graph: It should tell you what are the difference between accuracy and precision.  I bet that the understanding of the difference between accuracy and precision is so basic for any scientist/engineer. I was proven to be wrong again (thanks to various "audio science" forums and they are really eye-opening for me to see something I didn't see before). A lot of "scientist/engineer" can't tell the difference. "Precision part":  two DACs are measured to have very high SINAD. People in the "audio science" forums would call these two ...

Jude (owner of the Head-Fi.org), did you receive my complaint letter?

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 Jude (owner of the Head-Fi.org), did you receive my complaint letter? A fellow member in Head-Fi.org knew that I sent a complaint letter (via "Contact us") for a recent incident on Head-Fi.org. He suggested that I can reach out to the onwer of the Head-Fi.org and make him aware of what happened. He sent me the following information regarding the owner: I am pretty surprised to find out that the moderator disabled my PM function. As shown below, there is no "Start a Private Message" button for me. I cannot reach Jude. I was able to start PM with a few members before but now I am no longer be able to start any new PM with any member. Thank you, Mr moderator. Why the moderator is so afarid of me? He did all he can to control my speech.  I am quite concerned with his mental health. I hope he is ok (as he mentioned that " he is going to be ok  (item 5 on the link)", i.e. he is not ok now.   Jude, as a owner of Head-Fi.org, you have the solo  discretion to de...

Soft ban? Control of Free Speech? Why?

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Soft ban? Control of Free Speech? Why?  It has been more than 12 hours since I posted the following reply to a post: Is my writing is really so complicated that it would take more than 12 hours to approve it? Do they understand what I said in the post? Or they are thinking if I have any hidden message/agenda with my post (like the hidden message that the moderator would like to deliver  (see item 5 in the link))? Or they are thinking I am going to play a manipulative game with my post? I have no idea but I am sure that they are afraid of my speech/writings. They want to create more obstacles for my speech/writing to control it (or hoping me to stop totally) Again, who would be so afraid of free speech? Usually someone in authority who would like to hide the truth from the general public would need the control of free speech. Agree?

Galileo, Control of Free Speech, and pseudo science in 2024

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 Galileo, Control of Free Speech, and pseudo science in 2024 Free speech is an universal right but there are still many places such right is a rarity even in 2024. One of such places is known as "audio science forums". Do we still remember the story of Galileo? I just saw the following article:  Four centuries after Galileo was silenced, UK students are still curbing free speech (theconversation.com) In the above article, it mentioned "no platform". Galileo faced the "no platform" issue; some students also faced the same issue. No platform? Whenever you attempt to speak a truth that is incompatible with the believes of the "audio science community" (aka cult community ), you will be bullied and attacked first, then put on control of free speech, and finally be silenced/vanished completely. (I already blogged a lot of my experiences for the last two months. Feel free to check it out  as I don't bother to list them one by one here) It is almost...

Official complaint letter regarding the abnormal behaviours of Sound Science Forum moderator on Head-Fi.org

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Official complaint about the abnormal behaviours done by Sound Science Forum Moderator on Head-Fi.org I sent the following complaint letter to the Head-Fi.org (via "contact us") just now (27 May 2024 10:54 am EST).  Not sure if they care to reply but it looks like that they  did something last time after I sent them my other complaint letter . What happened this time? The moderator just deleted my thread I created today (27 May 2024) regarding the topics of   Is square wave used in electronic music? | Headphone Reviews and Discussion - Head-Fi.org Looks to me that the moderator just want to ban me for the sake of banning me.  Anyway, here is my official letter sent to them. ======================================================================= Dear Head-Fi.org management team,   I am writing to lodge my second complaint / express my concern about the experience I had in the "Sound Science" forum on Head-Fi.org. I sent my first letter on 11 May 2024 regard...

Catching Fire, Audio Science Forums, Pseudo Science Claim, Brainwash, and Awakening!

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 Catching Fire, Audio Science Forums, Pseudo Science Claim, Brainwash, and Awakening! Catching Fire is the 2nd movie of the Hunger Game series. The movie is very interesting. The following are the themes of the movie (from wikipedia): How these terms Catching Fire , Audio Science Forums , Pseudo Science Claim , Brainwash, and Awakening  can be linked together? Audio Science Forums and Pseudo Science Claim I'd explained why I created my blog and it shows clearly how audio science forums are linked with pseudo science claims.  Most of the writings in my blogs revealed the Pseudo Science Claim / behaviours happening in these "Audio Science" forums. I found that most of the senior members (and the moderators) are probably having an Electrical Engineering background. Their level of understanding of Audio Science is probably (at most) up to a level that an average electrical engineer could master.   Monty's video is a good example. Good mastery in Audio Science (and...

One of the major characteristics of Pseudo Science: Contradiction.

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One of the major characteristics of Pseudo Science: Contradiction. I just had an interesting discussion  with someone in the Head-Fi sound science forum. As usual, they came up with contradictions and stopped me right the way as they knew that I would dig out more contradictions from them during the discussion. Example 1: Is square wave an illegal input signal for digital audio? Someone said no, it is not illegal: Someone said yes, it is illegal: Interestingly, they agreed that all these quotes are ok (i.e. compatible with each other) as shown below: Hmm...  1. All square waves are band-limited    2. square waves, another signal with infinite bandwidth I believe that any sense people would know that item 1 and item 2 are contradicting with each other.   Example 2:    We were talking about band-limited square wave, i.e.  To be exact, the above was generated by the following: One of the senior member in the sound forum stated the following (i...