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Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:09 pm
by jkeny
pistollero wrote: ↑Tue May 29, 2018 10:59 pm
nige2000 wrote:pistollero wrote: ↑Tue May 29, 2018 7:43 pm
Thank you very much for the help jkeny. it is playing music :)
What's your setup there?
Hi nige, my setup is raspberry pi 3 - diynhk 768 isolated xmos - potato -cs4396 dac diy with transformers output...
Sounds good..
Now i connected amanero with potato and the sound is much more clean..
Maybe my isolated xmos has some problem..
I tested the sd card without the potato but i did not liked the sound... not clean..i have to try with potato.
All Isolation adds jitter
Reclocking with flip flops, if done correctly, reduces/eliminates this jitter & should result in better/cleaner sound
Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:15 pm
by nige2000
pistollero wrote: ↑Tue May 29, 2018 10:59 pm
nige2000 wrote:pistollero wrote: ↑Tue May 29, 2018 7:43 pm
Thank you very much for the help jkeny. it is playing music :)
What's your setup there?
Hi nige, my setup is raspberry pi 3 - diynhk 768 isolated xmos - potato -cs4396 dac diy with transformers output...
Sounds good..
Now i connected amanero with potato and the sound is much more clean..
Maybe my isolated xmos has some problem..
I tested the sd card without the potato but i did not liked the sound... not clean..i have to try with potato.
Which isolated xmos chip are u having sq issues with?
Are u powering that amanero from rpi?
Re: RE: Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:19 pm
by pistollero
nige2000 wrote:pistollero wrote: ↑Tue May 29, 2018 10:59 pm
nige2000 wrote:
What's your setup there?
Hi nige, my setup is raspberry pi 3 - diynhk 768 isolated xmos - potato -cs4396 dac diy with transformers output...
Sounds good..
Now i connected amanero with potato and the sound is much more clean..
Maybe my isolated xmos has some problem..
I tested the sd card without the potato but i did not liked the sound... not clean..i have to try with potato.
Which isolated xmos chip are u having sq issues with?
I have the diynhk 768 blue isolated xmos.
I don t feel the sound clean as amanero.
Maybe the problem is the raspberry pi...
The xmos ndk clocks..are better clocks..
Enviado do meu SM-G960F através do Tapatalk
Re: RE: Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:24 pm
by nige2000
pistollero wrote: ↑Tue May 29, 2018 11:19 pm
nige2000 wrote:pistollero wrote: ↑Tue May 29, 2018 10:59 pm
Hi nige, my setup is raspberry pi 3 - diynhk 768 isolated xmos - potato -cs4396 dac diy with transformers output...
Sounds good..
Now i connected amanero with potato and the sound is much more clean..
Maybe my isolated xmos has some problem..
I tested the sd card without the potato but i did not liked the sound... not clean..i have to try with potato.
Which isolated xmos chip are u having sq issues with?
I have the diynhk 768 blue isolated xmos.
I don t feel the sound clean as amanero.
Maybe the problem is the raspberry pi...
The xmos ndk clocks..are better clocks..
Enviado do meu SM-G960F através do Tapatalk
Afaik the blue xmos board isolated or not should be a good bit better than the amanero
What way are u powering these usb to i2s boards?
Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:36 pm
by pistollero
On xmos i power the isolated side.
I have salas reflektor, lt3045, lt3042.
Do you have this board?
Maybe the non isolated is better...
Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:40 pm
by nige2000
pistollero wrote: ↑Tue May 29, 2018 11:36 pm
On xmos i power the isolated side.
I have salas reflektor, lt3045, lt3042.
Do you have this board?
Maybe the non isolated is better...
I have non isolated version
But difference shouldn't be very big
Clean power to the i2s boards will help quite a bit
Re: RE: Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Tue May 29, 2018 11:48 pm
by jkeny
pistollero wrote: ↑Tue May 29, 2018 11:19 pm
The xmos ndk clocks..are better clocks..
Not really - there's a lot of myth around these ndk clocks, it seems. I've seen it reported by Jocko, a well respected RF engineer who has measured these clocks, that there are wide variations in these clocks - Yes the best ones are very good but there's a wide range from best to worst clocks & it's pot luck which you have.
Re: RE: Re: RE: Re: RE: Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Wed May 30, 2018 12:02 am
by pistollero
jkeny wrote:pistollero wrote: ↑Tue May 29, 2018 11:19 pm
The xmos ndk clocks..are better clocks..
Not really - there's a lot of myth around these ndk clocks, it seems. I've seen it reported by Jocko, a well respected RF engineer who has measured these clocks, that there are wide variations in these clocks - Yes the best ones are very good but there's a wide range from best to worst clocks & it's pot luck which you have.
I m thinking about that too...
Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Wed May 30, 2018 8:51 am
by pistollero
I dont want to get away from the original thread about sd card. Maybe we could open a new thread for this i2s devices and their mods and listening impressions.
I have hfb dac + pro and hfb digi +pro with external supplies. They also output i2s...
The thruth is they all claim bit perfect but they all sound different...
Who knows why!!
Re: Computer Audio Blasphemy, nige tries Another SD Card Player
Posted: Wed May 30, 2018 10:01 am
by nige2000