The Best DAC is no DAC

[fabiodipietro27]

Boards received, very nice, Ray. Many thanks.

 

[dwjames]

Could someone link the low pass filter calculator again please? I did search but it's not forthcoming and I've found other calculators online but they're giving me suspicious numbers..
I want to know what caps I need for 40khz low pass with either 270r or 135r resistors so I can make use of kit I have here.
Thanks

 

[ianrt]

f = 1 / ( 2 pi R C)
for f = 40 kHz, R * C = 4 microSec
for R = 270, c = 15nF
for R = 135, C = 30nF

Ian

 

[dwjames]

f = 1 / ( 2 pi R C)
for f = 40 kHz, R * C = 4 microSec
for R = 270, c = 15nF
for R = 135, C = 30nF

Ian

Brilliant, thanks

 

[pegasus21]

Ray, I've received my boards. Thanks!

 

[merlin el mago]

Could someone link the low pass filter calculator again please? I did search but it's not forthcoming and I've found other calculators online but they're giving me suspicious numbers..
I want to know what caps I need for 40khz low pass with either 270r or 135r resistors so I can make use of kit I have here.
Thanks

http:// http://external.informer.com/glass-ware.stores.yahoo.net/tcjfildes.html

 

[merlin el mago]

This on line low pass filter calculator is also good and is free.

http://www.sengpielaudio.com/calculator-RCpad.htm

http://sim.okawa-denshi.jp/en/CRlowkeisan.htm

 

[merlin el mago]

About calculators it's normal to look for the resistor because is more easy to get the standard resistor value than the standard capacitor value,

 

[merlin el mago]

This one is the most accurate and can give you capacitor value knowing the used resistor value.

rc_simple_filter [Electron Coaxing Techniques & Notes]

 

[nautibuoy]

About calculators it's normal to look for the resistor because is more easy to get the standard resistor value than the standard capacitor value,

I disagree. There are many more resistor values than cap values.

I get a standard cap value of suitable size/quality then tune the R value to suit that cap value.

 

[merlin el mago]

I agree, it's more easy to get the resistor value than the capacitor value. That's the reason last post with link calculator knowing the resistor value to get the capacitor value.

 

[nautibuoy]

I agree, it's more easy to get the resistor value than the capacitor value. That's the reason last post with link calculator knowing the resistor value to get the capacitor value.

Ah, apologies, I misunderstood what you were saying.

Ray

 

[merlin el mago]

Ray your project sounds wonderful, I'm using Daphile player, I can resampling PCM only to DSD128 because my old Vaio can't afford more, Daphile player can resampling to DSD512, really I can only resampling to DSD64 to avoid cuts and pops also I have to reduce the max sample rate to 192K.

I'm very happy with Daphile SQ, what about the HQPlayer SQ?

Felipe

N.B. files DSD64, DSD128 and resampled PCM to DSD64 sounds OK. Interesting to listen more resampled but F2K SQ is very bad vs Daphile SQ.

 

[nautibuoy]

Ray your project sounds wonderful, I'm using Daphile player, I can resampling PCM only to DSD128 because my old Vaio can't afford more, Daphile player can resampling to DSD512, really I can only resampling to DSD64 to avoid cuts and pops also I have to reduce the max sample rate to 192K.

I'm very happy with Daphile SQ, what about the HQPlayer SQ?

Felipe

N.B. files DSD64, DSD128 and resampled PCM to DSD64 sounds OK. Interesting to listen more resampled but F2K SQ is very bad vs Daphile SQ.

I'm glad you like the results Felipe, though I don't really warrant the credit for the project; all I've done is taken other peoples ideas and put them together on a PCB - I think of it as more of a community effort. You can buy me a beer next time I'm in Spain though

I've not tried Daphile (though if it can upsample to DSD512 perhaps I should) so can't give a view on it versus HQPlayer but I can say that 16/44.1 PCM upsampled to DSD256 with HQPlayer sounds excellent, better than my Botic/Buffalo3/Legato (via UPnP)

Ray

 

[merlin el mago]

What kind of pc do you use HQplayer, do you use HQplayer with BIII?

Not only one bear....

 

[nautibuoy]

What kind of pc do you use HQplayer, do you use HQplayer with BIII?

I have one of these;

http://www.bargainhardware.co.uk/content/specifications/z210_datasheet.pdf

I bought it used for about £200. The CPU (4core Xeon 3.4GHz) benchmarks is around 8-9000 as I recall (upsampling 16/44.1 PCM to DSD256 loads the CPU to around 33%). It runs Win10 and streams its output over a dedicated Gigabit LAN to an HQPlayer NAA device.

I have used HQPlayer with the BIII but only for PCM. I've upsampled PCM to 384KHz and played it on the Botic/BIII and it sounds very good. There are some compatibility issues with Botic/NAA that meiro will need to fix before DSD is a possibility.

Ray

 

[merlin el mago]

Thanks for the info Ray, will be interesting to know your opinion about SQ of Daphile vs HQplayer before to change a better PC.

Felipe

 

[nautibuoy]

Thanks for the info Ray, will be interesting to know your opinion about SQ of Daphile vs HQplayer before to change a better PC.

Felipe

Don't hold your breathe. Although I will try Daphile it is a Linux distro and I don't have the space to dual boot the PC at the moment. I would also be reluctant to not have the NAA capability as I wouldn't want the workstation in the listening room.

Finally, on DSD512, I don't have anything capable of using it at the moment, JLSounds is max of DSD256 currently.

Ray

 

[merlin el mago]

Amanero is the only can support till DSD512 on Windows, but can't support native DSD only DoP.

Felipe

 

[skrstic]

Put Daphile on USB stick and try it.
http://www.daphile.com/download/Instructions.pdf