Gregorio, it looks like that you are considering audio phenomenons only through measurements and not through actual audition. You said for instance that tape has worst soundstage than 44.1 because it has worst crosstalk results. However, thruth is that tape has better sound stage than 44.1 in...

Let's stop talking for a while. I Don't think I'm going to change my mind. We would better listen to music and relax.

People who have actually listened directly to an acoustic instrument like a piano or drums know how they sound. When I say this kind of instrument does sound better recorded on tape or high sample rate digital, I don't mean that they sound more pleasing. I mean that they actually sound more like...

I think that tape and 192 KHz are a bit similar because they have both a vey wide frequency response. We use to think that tape has a frequency response that is not as extended as what CD can provide. This is true if we consider frequency response at -3dB, but measuring this way does not make...

A 44.1 KHz audio file from a tape or downsampled from a 192 KHz recording will sound clearly better than a native 44.1 KHz recording. This is something that we have to take into account here. This is the reason why even if Youtube is limited to 96 KHz we can hear adifference throu gh it. I'm not...

I read that Philips wanted tu use 14 bit for the CD format and that Sony advocated for 16 bit. It was not only for dynamic but also for linearity reasons. 16 bit files are enhanced with a dithering process to improve linearity. Did you actually experiment with 13 bit to hear how it sounds ?

I guess that you have understood that we have been talking about sampling rate rather than bit depth for a few pages. As for 16 bit vs 24 bit, I think that 16 bit is enough for playback. Maybe 18 bit could be a little better, but 24 bit certainly don't make sense for audio playback. In my...

Why do you think it's not the thread for this ? DSD is related to sampling frequency, isn't it ?

I globally prefer PCM to DSD, but the latter can sound really could under some conditions. I read a few articles about sigma delta modulation and noise shaping. Are you interested in talking about DSD ? Did you study this subject ?

Yes, in 2013, but 8 years are a long time for the Internet. Apple Music is now offering ALAC streaming up to 192/24, which is lossless compression. 8 years ago, Youtube sound was trashy but they have improved quite a lot. If you can listen to a good master on Youtube the sound quality is pretty...

Why do you think that Youtube sonic quality should be much inferior to Apple Music, for instance ? They are both audio streaming other IP. They both can reach 192/24. Youtube uses a little compression, but this is not very audible. They have made a long way since 5 or 6 years ago, when they had...

Do the experience. It may look surprising, but in spite of the youtube transcoding and compression I can clearly hear the difference between DSD and 96/24, at least when the original analogue master was not or only a little processed. Processing can make things at little blurred. By the way, I...

I read that steep analogue filters could have an impact on phase inside the audible band. Do you think it's true ?

This sounds like old Dan Lavry's litterature. Do you have any scientific element to decide when an anti-alias filter becomes relaxed in terms of corner and slope ?

Did you notice that the transfer of the audio content of real to real tape onto 44.1/16 results in a very significant loss of audio information ? If you want to make and opinion you can the visit the youtube channel called MarioPindaBR. This guy has remastered old tape recordings (some are from...

71 dB, why do you suggest 60 KHz for signal filtering, and not 80 KHz ou 120 KHz, for instance ? Is there a good reason for choosing this frequency ?

Thank you. I had a look and I could see that there is a chapter called "phase and polarity. do wa hear waveforms ?". This might be relevant for our discussion. What does the author say about this ?

Could you suggest a book where it is explained how a waveform is actually produced and how it is decoded by the ear ? I would be glad to learn about your own bologna.

Gregorio, you really didn't understand what I mean because you don't seem to consider what happens in the time domain. To understand what a waveform is we not only need to consider which signals are audible, but we also have to look at their position in the time domain. Frequencies are not...

My interpretation of low rate sampling is that it produces a global waveform distortion. As a consequence, it has an effect all along the audible band, and not only on the upper range that has been forgotten through the sampling process. The result should sound globally thick and distorted. The...

How should an acoustic instrument sampled at 16 KHz sound, according to you ? Lacking airiness, lacking clarity or very thick and distorted ?

Not sure I did really undertand. What does this guy try to demonstrate ?

Your argument makes sense, but I don't think that it is sufficient to explain the extremely poor sonic result achieved with 8 KHz sampling. If you were right, the result would sound like deprived from clarity rather that totally distorted. We would need to experiment further, though, to make a...

Keith Phantom, analogue signals are not band limited, as you said. That's true, and then the signal received by the microphone and which is converted into a voltage isn't limited either ( inside the frequency response limits of the microphone, but we have to consider this response at a very low...

This is a very interesting and useful experiment. People should learnt from it. If traditional digital audio theory was right, audible frequencies up to 4 KHz should have been reproduced properly. But they were not.