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Messages - mkaf

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1
PIANO HI-FI DAC 2.1 / Re: purepath bin files
« on: April 06, 2017, 11:14:03 PM »
here there are again, bin-files.jpg and dmesg.jpg

...in the meantime i solved problem by myself.

best regards
mkaf

2
PIANO HI-FI DAC 2.1 / Re: purepath bin files
« on: April 05, 2017, 11:30:30 PM »
dear admin,

thank you for the prompt response. pls see the screendumps attached.
on a fresh pietdi installation none of the files was read (see dmesg-output).

pls tell how israte 44100 and cut-off 100hz selected and how to change from rate 44100 to 4800, cut-off 100hz.

best regards
mkaf

3
PIANO HI-FI DAC 2.1 / purepath bin files
« on: April 05, 2017, 01:11:39 PM »
hi,

i have completed bin-file generation process following your guideline ?successfully.

everything worked like described but i am looking for information how to enable the different settings.

if there are more than 2 bin-files in directory /lib/firmware/allo/pian/2.2 how does the driver select and activate specific bin-files?

best regards
mkaf

4
PIANO HI-FI DAC 2.1 / purepath biquad parameters
« on: February 13, 2017, 11:06:15 PM »
dear admin,

i would like to set following crossover values via purepath object properties.
when inputting a1 and b1 coeffs there is an error coming up telling that variable is out of range.

           Lopass     Hipass   
Freq.      1200       80
Q      0,54        1,31

could you help explain process to extend the bandwidth of parameter for this subject?
do you have example crossovers where i can learn other settings also?

best regards
mkaf

5
PIANO HI-FI DAC 2.1 / unix app > where to download?
« on: December 16, 2016, 03:58:36 AM »
dear admin,

i would like to ask you for the download coordinates of the small unix app for the Piano 2.1 mentioned on the website:

"The board will come pre-programed as a 2.1 output (but you can create your own custom design and load it the board and can access the xover frequency directly from linux (we made a small app)."

best regards
markus

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