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Wijnand
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(@wijnand)
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Digital to analog


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Wijnand
Posts: 243
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(@wijnand)
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Joined: 3 years ago

When people talk about jitter. I never really understood it. I’m not sure if this was meant, but I think that we should think in datawords and not in bits. In my system the sound becomes darker when I put real high grade power supplies on all my network equipment. The better the power supplies the darker the sound became. I think that due to the power supplies the signal became a lot better, but noise that was not related to the power section should be canceled as well. The above thing with the ferrite cores (on the TX and RX pair of the ethernet cable) was not my own idea, but it seems to work really great.

Think about 8 glasses of water which stand for a byte. When there’s water in the glas it means 1. When the glass is empty this means 0. But what about when we have half filled glasses. These half glasses still fulfill the digital value ( so it’s bit perfect), but when you convert them to analog you will hear a different sound in comparison to the conversion of complete filled glasses. The higher the value in the byte the more effect it will have on the sound. Because the digital value of the byte will stand for the analog voltage. So when the DAC crystal can switch on its own terms not troubled by noise it will capture the complete data word. See it like this (picture) When the datawords are converted with a better phase than the music will sound less cropt.

When the lines are less steep it means there’s less high frequency (it’s crop into a smaller frequency range). It’s only a theory, but the sound is much better :slight_smile:


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Wijnand
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The netgear box is the box with the ferrite cores. Its position is the last section where it enters the streamer. The Pink Faun isolator is used to separate the ground systems of the house and the Audes transformer

Leads


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Wijnand
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(@wijnand)
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Many tanks to Tobias!

Thanks for helping me figure things out. The level is insane! The sound is so pure and analog now. Details are clearly more tight and have more space. Its music in its purest form 🙂

I'm probably just at 90% of understanding, but It seems I was way off track. The trouble is caused by the ethernet, but it happens on the DAC. I think the DAC crystal was slightly out of phase.


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Tobias
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That sounds amazing. Thanks for the pictures also.

I notice that you have your ethernet cables "naked" now, prior to the ferrit core and after. They guys on the German forum seem to suggest that the cable should be a short length and covered with ferrit clamps before and after the core.

Is it because they have a WiFi extender close to the choke cable you think? Are they trying to cover the cable from that WiFi radiation or something?


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