I did some listening test between a NanoPi Neo2 and the first usbrigde (not the signature) with the same p/supp. The usbrigde is far more detailed.
Yes for sure, read this;
For translation in your language, just check the translate option on the upper right of this pageDat we zelf vinden dat de DDDAC1794 NOS een formidabele - Audio-Creative
For translation in your language, just check the translate option on the upper left of this pageNa de succesvolle avonturen met de Allo Kali Reclocker in - BerryStreamer met Ian Canada FiFoPi
Good morning
Do you have an idea on why this could be? As the waveIO should be isolating the USB source from the DAC and is reclocking the signal asynchronous. I had different streamers too I in my HiFi journey and I really like the convenience they bring, but I can't wrap my head around how they could influence the sound.
I wondered about this, too. How can the USB data source connected to the WaveIO (PC, Aurender, RPi, etc.) affect the sound quality?
I see only two ways:
- Differences of the data output by the software to the USB interface. One would think that the software is "bit perfect", but the underlying operating systems and sound mixers are sometimes more involved than one would hope. I guess the Aurender might have an advantage here.
- Electronic noise (like ground loops) that strains the electronics of the I2S receiver and DAC. I had this issue when my music laptop was far away from the DDDAC. Both devices were plugged in to different wall outlets, and the USB cable was very long. This created a very large ground loop. While the WaveIO USB input is "isolated", this isolation was obviously not good enough. Once I disconnected the external PSU from the laptop (so it was running off the battery, breaking the ground loop), the sound quality was clearly better. I also tried moving the laptop closer to the DDDAC, using the same wall outlet and a short USB cable. This gave the same improvement.
Both issues are not so much related to the quality of the WaveIO as an USB/I2S converter.
In the end, all we need is a good I2S signal for the DAC chips (correct data values and low-jitter timing). Once the I2S signal has been cleaned up by a reclocker board, it should not matter if the I2S signal comes from the WaveIO (or other USB/I2S), a SPDIF/I2S converter (like the one on the DDDAC board), or from a direct I2S source (for example a RPi).
Hello,
The audio creative people write that changing from usb to I2S is a big leap forward. Maybe adding some circuitry to the wave io will make differences smaller but it still remains a usb connection.
Of course the guys from audio creative want to make money too.
If switching to I2S makes the circuitry feeding the dddac easier and better i surely like to give it a try.
Greetings, Eduard
The audio creative people write that changing from usb to I2S is a big leap forward. Maybe adding some circuitry to the wave io will make differences smaller but it still remains a usb connection.
Of course the guys from audio creative want to make money too.
If switching to I2S makes the circuitry feeding the dddac easier and better i surely like to give it a try.
Greetings, Eduard
Eduard, you are already using I2S! The DDDAC cannot work without it. The WaveIO converts from USB to I2S.
The RPi can output I2S directly, so no need for USB. However, the I2S signal of the RPi has a lot of jitter (see here), and that's why most people want a reclocker (like Ian's FiFo) for the I2S signal.
The RPi can output I2S directly, so no need for USB. However, the I2S signal of the RPi has a lot of jitter (see here), and that's why most people want a reclocker (like Ian's FiFo) for the I2S signal.
Hello,
I know you told me before!
Just curious if you use a kind of mediaplayer that uses I2S output so it will just be I2S from beginning to start and you will do everything possible to make the consisting parts work perfectly will it sound better than using a wave io with some additional circuitry?
As i wrote before audio creative now consider usb as something like the first generation cd players.
They are in for the money i know.
Greetings, Eduard
Hi Eduard (and others),
I don't see the 'money" thing of it.
The DDDAC stays the same. It has a SPDIF input and I2S input.
Instead of the WaveIo (not theirs but another seller and developer) with a streamer of your own (macbook/Auralic/Aurender etc.) they now use a RaspBerry Pi as I2S source AND as streamer.
They do sell these units, but everybody is free to buy them everywhere they want.
So, IMHO it has nothing to do with moneymaking (they only sell DDDAC's ) because all the rest is from a third source (Luckit Wavio, FifoPi, RaspBerry).
The only thing I know and read is that they are always searching to get the best sound out of the DDDAC.
Regards,
Jan
I don't see the 'money" thing of it.
The DDDAC stays the same. It has a SPDIF input and I2S input.
Instead of the WaveIo (not theirs but another seller and developer) with a streamer of your own (macbook/Auralic/Aurender etc.) they now use a RaspBerry Pi as I2S source AND as streamer.
They do sell these units, but everybody is free to buy them everywhere they want.
So, IMHO it has nothing to do with moneymaking (they only sell DDDAC's ) because all the rest is from a third source (Luckit Wavio, FifoPi, RaspBerry).
The only thing I know and read is that they are always searching to get the best sound out of the DDDAC.
Regards,
Jan
Eduard, I believe your statements aren't completely fair. Knowing Dick and Marco for many years, they are absolutely enthusiastic for the hobby. They spend a lot of money (like me) on development of great DIY solutions - so it is fair to get some of that back (like I do) and they are completely different from the typical OEMs you find at high end shows… They (and I) or NOT doing this for a living ( far away from it to be honest
) Repeatedly posting they are all about money is simply not true and it does not make it more true by repeating it - I would appreciate if you could step down a bit on this - thanks !
let's stick to technical discussions on the DDDAC and related technical topics, at least in this thread
Hello,
Of course they are not the typical diy parts sellers.
They wrote usb is a no go at present days and I2S is the ultimate thing. I repeated that a few days but then i am being told that is not true so if it is not true why would they publish this disinformation?
Must have been my low sugar?
Greetings ,Eduard
Of course they are not the typical diy parts sellers.
They wrote usb is a no go at present days and I2S is the ultimate thing. I repeated that a few days but then i am being told that is not true so if it is not true why would they publish this disinformation?
Must have been my low sugar?
Greetings ,Eduard
I know I told you before, but I am not sure you understand what I am trying to say. It's not that "I2S is better than USB". You can't compare USB and I2S in this way.
It's like one can't say that French is better than English (at least not from an "engineering perspective"
). If Emmanuel Macron talks to Donald Trump, he needs a translator. Now replace "Macron" with "Aurender/USB", "Trump" with "DDDAC/I2S" (aehm...) and "translator" with "WaveIO". Do you see my point?Hello,
Sure i understand what you are saying.
Here in Vietnam some people trust google translate when they wanna talk English to me. They are really convinced that it works.
I grew up with books and my knowledge of Dutch language is surely above average and the people from audio creative clearly state that USB is something from the past. No matter how i read it this is clearly what they say.
Of course things should be seen in perspective and both usb and I2S need optimised circuitry to be state of the art.
We will see if Doede can guide us to audio nirvana. If he does it in the same way like he developed his dddac it will take some time but it will be easy for us.
Greetings, Eduard
Sure i understand what you are saying.
Here in Vietnam some people trust google translate when they wanna talk English to me. They are really convinced that it works.
I grew up with books and my knowledge of Dutch language is surely above average and the people from audio creative clearly state that USB is something from the past. No matter how i read it this is clearly what they say.
Of course things should be seen in perspective and both usb and I2S need optimised circuitry to be state of the art.
We will see if Doede can guide us to audio nirvana. If he does it in the same way like he developed his dddac it will take some time but it will be easy for us.
Greetings, Eduard
So I just installed the ldovr 3045 and the first impression is very good. At the moment I made it switchable between the lf50 and the 3045 so I can make a direct a/b comparison. But I’ll let the 3045 burn in until tomorrow, just in case...
A quick comparison on the oscilloscope showed also a bit better noise rejection on the 3045 (don‘t nail me on this, it was just a quick inspection to get a clue on performance and was not proper probed...)
I‘ll add my 2 cents on the sound once I finished A/B testing tomorrow
A quick comparison on the oscilloscope showed also a bit better noise rejection on the 3045 (don‘t nail me on this, it was just a quick inspection to get a clue on performance and was not proper probed...)
I‘ll add my 2 cents on the sound once I finished A/B testing tomorrow
Hi Oli, give it a week or so, we had comments some time ago, things were different than.... just to be sure
Good idea to make a real A-B...
Correct, BUT ONLY for the first functional test. I built everything in my DAC yesterday evening (for testing again, not final assembly
I power as follows (this will be final for now)
*DDDAC Board - Magic Power Supply (Audio Creative) 12V
*Wave IO - DDDAC 5V
*PI3 + FiFo (the stacked / non-isolated part) and the Relais Board - 5V SMPS
*FiFo - Isolated Clock Part - LDOVR 3,3 Volt through RC coming from Magic 12V
*Arduino Control Board - Small LM317 PS 12V
see the pics (Christmas is over, but it lightens up as a Christmastree
Will do real listening tests later this week
Hi Doede, can you measure the value of R1 on the LDOVR bord? I have the 5v version and probably R1 sets the output voltage.