Thanks Merlin. I'm about to start looking at the DSC2 boards - I need to install the output board, with the transformers, and hook it all up but I think I may need some longer stand-offs.
Please explain, how install AudioLinux on Beaglebone black? Саn I install Arch Linux and at the same time use AudioLinux packages?
I don't use audiolinux on my BBB, I have installed Pavel's latest package using the botic7 kernel and use it as an HQPlayer NAA.
I use audiolinux on my music workstation/server where I run HQPlayer to convert my FLAC files to high data rate DSD.
There is a release of audiolinux for the BBB but I don't know what functionality it offers (for example, whether it has the botic kernel) and, anyway, I prefer to keep the BBB firmware lightweight. Check out the audiolinux website as there's information there about installing it.
BTW, audiolinux is based on ArchLinux.
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PPY
May I ask if you might consider as well a v2.1 where someone who has done his final decision which resistor type to use and solder them directly to the motherboard...no connectors in the signal path ?
I just did my Mouser order on the recommended tant resistors in the BOM...they are not really a bargain...old philips semis are as well on their way...this will become reality qiet soon...
May I ask if you might consider as well a v2.1 where someone who has done his final decision which resistor type to use and solder them directly to the motherboard...no connectors in the signal path ?
I just did my Mouser order on the recommended tant resistors in the BOM...they are not really a bargain...old philips semis are as well on their way...this will become reality qiet soon...
High quality clocks are used - NDK NZ2520SDA.
I know only one quality offline converter - Saracon
Its cost is 2000$
And the maximum DSD128 bitrateThere are no alternatives to the sound quality of HQPlayer. But you can use the free software Daphile. The quality of conversion is significantly worse.
In my latest firmware, it is possible to use MDP or AlbumPlayer via DLNA protocol to play DSD files. But while there are some limitations - MPD maximum DSD128. AlbumPlayer maximum DSD256 but there are still unsolved problems with the mute signal.
In future versions, these problems will be fixed, but this is not a priority task for me.
I do not plan to change the existing design. This will require additional development and an increase in PCB size.
You can go two ways:
- Make version 2.6.2 or 2.5.2 (there are resistors installed on the board)
- Or for the latest version to order the manufacture of resistor PCB thickness 1.6mm or 2mm. Then they can be soldered to the motherboard without connectors.
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Great, thanks a lot for your answer...I am still learning.
OK, I guess I am going to order the PCBs a second time then...in 2 mm thickness and 70um copper, no ?
When I understand you right, in theory a BBB--->FIFO2--->2.62 could work ? I believe your reclocker is not on board of the 2.6.2, right ? Not sure how to get the MC back to the BBB from the FIFO2...so I prefer your v2 I guess...even though I am running my FIFO2 right now with some Pulsar oven clocks (45/49)....
OK, I guess I am going to order the PCBs a second time then...in 2 mm thickness and 70um copper, no ?
When I understand you right, in theory a BBB--->FIFO2--->2.62 could work ? I believe your reclocker is not on board of the 2.6.2, right ? Not sure how to get the MC back to the BBB from the FIFO2...so I prefer your v2 I guess...even though I am running my FIFO2 right now with some Pulsar oven clocks (45/49)....
The thickness of the copper does not matter here.
Yeah, right. But if BBB is used with reverse synchronization, then the use of FIFO is redundant. Enough simple sync on flipflop. In this mode, the BBB itself performs the function of the FIFO.
New version mini Botic7 firmware: https://www.diyaudio.com/forums/twisted-pear/258254-support-botic-linux-driver-283.html#post5837248
Thanks a lot...By the way...can share a bit the output specs if no transformer is used ? As an example I am using a differential tube output stage with the differential BIII and as well with the SoekrisDam1941. As the output of the DAC goes directly to the grid of the tubes and the tube output transformer does the PP-->SE conversion, I would guess that this should be possible with your DAC as well, no ?
Announcements on Botic firmware will be only in this thread of the forum - https://www.diyaudio.com/forums/twisted-pear/258254-support-botic-linux-driver-283.html#post5837248.
There I wrote a changelog for the new version.
I thought MarcelvdG's valve DAC, published in Linear Audio 13, looked interesting, especially the references to a DSD specific version, so I resurrected the conversation and thought some here might be interested.
https://www.diyaudio.com/forums/dig...c-linear-audio-volume-13-a-6.html#post5842521
https://www.diyaudio.com/forums/dig...c-linear-audio-volume-13-a-6.html#post5842521
Got my boards this week and starting to assemble them now...may be this is a stupid question, but may I ask how do I know the correct chip orientation as I did not find any markings on the boards ? Can someone upload a hires picture of his assembled board in bird perspective, please ?
gtose picture above is already helpful, but you cannot see all markings on all chips.
gtose picture above is already helpful, but you cannot see all markings on all chips.
http://puredsd.ru/mounting_plan.pdf
Each chip has its first pin labeled.
https://www.diyaudio.com/forums/attachment.php?attachmentid=766723&stc=1&d=1562430261
Each chip has its first pin labeled.
https://www.diyaudio.com/forums/attachment.php?attachmentid=766723&stc=1&d=1562430261
