Clocks all built and left powered on before my first listening
When the dac is off the clocks will be powered by a simple psu and when the dac is on power switched to the battery psu
Just need SinePi now @Ian
Hi Simon, what’s that board on the right?
It would be fantastic if anyone were able to compare the sound signature of this particular version of piCorePlayer 8.0.0 to that of AudioLinux, the developer spent a long time to get the Linux kernel version 5.13 stripped WAY down while applying other changes. For instance, lowering the jitter with EVL while changing the kernel timer frequency to either 44.1kHz or 48kHz etc.
https://github.com/sam0402/pcp-44.1KHz
https://www.stsd99.com/phpBB3/viewtopic.php?p=19965#p19965
It's supposed to sound its best with the "Stylish" option as follows
https://www.stsd99.com/phpBB3/viewtopic.php?p=19974#p19974
https://github.com/sam0402/pcp-44.1KHz
https://www.stsd99.com/phpBB3/viewtopic.php?p=19965#p19965
It's supposed to sound its best with the "Stylish" option as follows
https://www.stsd99.com/phpBB3/viewtopic.php?p=19974#p19974
If you mean this PCB then this is the "brains" of the DAC in terms of the overall control of it.
It covers.....Remote control for input selection and the inclusive TVC volume as well as rotary volume control, driving an LCD display, controlling the mute features and more.
Test routine to display the core PSU voltages on the LCD for test purposes
Its all run by an Arduino so had the write the software too.
It covers.....Remote control for input selection and the inclusive TVC volume as well as rotary volume control, driving an LCD display, controlling the mute features and more.
Test routine to display the core PSU voltages on the LCD for test purposes
Its all run by an Arduino so had the write the software too.
Attachments
There is already a RPi Linux thread on AudioPhileStyle which you have posted. The discussion maybe more appropriate over there as they know what's up over there with a large AudioLinux base.
How is the Pi 4? - Page 3 - Music Servers - Audiophile Style
This thread is more centered around DIY hardware, not software-based. There's also a pCp thread on this site.
piCorePlayer = piCore Linux + Raspberry Pi + Squeezelite
This is my last comment on this subject as everyone is waiting for SinePi news so this is getting to be off-topic. It was completely fine but now your trying to promote a pCp agenda?
If you are seriously interested, ask yourself if you think the serious audiophiles over at AudioPhileStyle would give up their Euphony for Daphile? Some would give up their first born before giving up Euphony. Why take one step forward and two steps back? Once you upgrade to Euphony or AudioLinux, you don't look back. Asking an audiophile to give up Euphony or AudioLinux will just trigger a "R U Serious?" response. They spent so much time, energy and coin for their hardware and you're going to run Daphile/pCp? You can, but there are other non-free options out there. My PC build may end up costing $5-10,000, you think I am going to run Daphile? Same parallel thought process, my Ian build that I poured sweat and coin and breathing in solder over you think I'm going to run Daphile/pCp if there's a better option?
While I appreciate the pCp community and their tremendous hard work, pCp is more geared towards general purpose use. Trying to be everything to everyone. AudioLinux is straight up minimalistic performance. pCp will never include a real-time kernel. They have tried and it didn't work out because it collides with LMS. They gave up. The Infrastructure may not be there. I love pCP and even used their latest core isolation build, but it's no contest. So editing the kernel doesn't matter much if it's not running a realtime kernel in the first place. If they do go with a realtime kernel, they are still 3-4 years away from performance. You can't have low latency without a realtime kernel. Impossible to replicate on pCp. Plus ArchLinux >> tinycorelinux for audio. ArchLinux is already a proven audio solution (Euphony, AudioLinux, etc.) on the PC side. The concept of pCp with a small footprint tinycorelinux is nice, but that limits it performance too.
As I already mentioned, the opportunity cost of just purchasing the product is worth the price of admission rather than spending so much time trying to make freeware work. It will never scale up to AudioLinux/ArchLinux.
As you already know, there are plenty of impressions on AudioPhileStyle since 2018, the PC version impressions translates to the RPi. I understand though as the sample size is extremely low at this time. And it will probably remain low as the price hike will price out audiophiles in August. But it's just synergy between hardware (PC vs RPi) && software, similar concept. I just wish you could upgrade to Apacer Industrial RAM on the RPi.
To me, pCp is like a buffet. AudioLinux like gourmet.
I love Tai Hing (HK) roast meat, but I rather eat Michelin* roast meat at Wing Lei @ Wynn Casino Macao.
Audiolinux is like an eating experience at Wing Lei @ Wynn Casino Macao everything single time I turn it on. It just captures that experience. Although, I would be perfectly happy with just Tai Hing, I would choose Wing Lei 10/10 times. It's just a completely different experience and it gets the blood flowing every single time I turn on my Ian device to experience the gourmet-ness. Tai Hing I would have to chew, Wing Lei melts in your mouth. So AudioLinux just melts in my ears, just smooth and natural.
Here's a recent quote by someone with a new AudioLinux PC build (Pareto custom AudioLinux PC builder) [They use top-shelf whiskey to describe while I use Michelin* roast meat, but you get the general idea...]:
Pareto Audio Listening Experience - Page 2 - Music Servers - Audiophile Style
My simple impressions are fast quick transients (low latency) and holographic transparency on modern DACs. I already mentioned the quick tight bass that only a low latency build can provide and probably only available on modern DACs. YMMV.
Let's move on and patiently wait for SinePi... Going back to my Summer Break. I got Hotspot and IR Triggers working 100%, so just want to listen not DIY over the Summer.
Good luck with the Apple Music on non-Apple devices thread. I hope I can bring my rig to Sim City in the near future once Quarantine rules for vaccinated are dropped.
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Unfortunately no. I started and stuck with PiCorePlayer as I just needed a simple direct streamer with local storage. I did not branch out to other distros. Piero has been optimising his system for years and years (not sure >=decade) and probably thinks about this stuff 24/7. Knows his system inside out. It's doubtful any free distro can come close to AudioLinux as freeware is bloated compared to a realtime kernel.
Since this is a somewhat time-sensitive matter (48 hours until price hike), I recommend you shoot Piero @ audiolinux@fastmail.fm an e-mail. He's in a different time zone (Italy) and it's half past one in the morning over here, so there's a chance you may get a quick response from him.
He's a DIY'er like one of us since 2004 (diyaudio account age), so there's a chance he may have used Gentoo at one time to experiment. Maybe compared.
😳 Impressive piece of work you’ve build there! Looks like I still have a lot to learn.
Hi A123 , Thanks for the info. Gentoo player is not free though it is cheaper than Audiolinux. Reading the webpage for Archlinux it seems very similar to GP in the feature set and it too is a very "paired down to the essentials" distribution.
I am out of spending money at the moment so will have to stick with GP but that isn't a problem as it sounds very good.
The refered setup from just gone Daphile, and it is the bees knees - Page 2 - Software - Audiophile Style is using USB, not the HDMIpi transmitter.
So I still have not been able to get DSD capability from the HDMIpi transmitter.
Is there anyone else that has the same issue or can advise in settings unlocking the true capability of HDMIpi using picoreplayer?
No worries M8. Thanks for passing down the Gentoo knowledge. I'm curious now to check Gentoo out one day. Maybe I was thinking of a free Gentoo General Linux Distro and not a non-free Gentoo Audio Software Distro since I wasn't aware of...
Glad GP is working out for you.
I wasn't pushing the actual product, but pushing the arbitrage price gap that would take place beginning of August.
Fortunately it only went up 10 Dollars / Euros. I was worried it would go up 30-40 Dollars / Euros, so was just making one aware they can exploit the price gap that's about to happen if the have interest before it's too late. @ 99 Dollar / Euros, it will price a lot of audiophiles out. An RPi4B@75 > AL@59 is good to go, so when AL@99 > RPi4B@75 makes a difficult justification. Now RPi4B@75>AL@69 can go either way.
It was mainly for nothing as it was just a small price increase.
I hear you about spending money. I spent enough so considering dismantling my transportable and moving the parts to the desktop project.
I don't want to purchase another RPi4B 8GB, Q3 and RCP. I can move those to the desktop and cross fingers a Q4 w/ built-in RCP and RPi4A is released early 2022 which will decrease my transportable project size by half.
Makes no sense to get duplicate parts at this time.
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Trying to get the most out of TWTMC clocks for FifoPi system (9)
Looking for the best power supply solutions for SienPi (or FifoPi clean side)
SinePi sine to square converter (squarer) can be looked upon as a high gain amplifier. That’s why a better power supply can also make more improvements.
I did a lot of tests trying to find out the best power supply (shared with FifoPi clean side) for SinePi . Here is the list of the three top power supplies I experienced. They really make an audible difference in my system.
Long story short, here are the results
No.3: LifePO4 Mini 3.3V in two battery cells parallel configuration
Better than all low noise LDO active power supplies. And also better than the other 3.3V LifePO4 battery power supplies in single cell configuration. I have to say the sound quality was gorgeous. It brings all the DRIXO OCXO low phase noise performance to the best possible sound quality level as it should be. It was playing very musical, warm and flawless in my system. BTW, LifePO4Mini is a low cost pure LifePO4 power supply I designed recently.
No.2, UcConcitioner3.3V with the LifePO4 Mini 3.3V two battery configuration
With all the signature that No.3 has, but better 3D image focusing, sound stage and high range.
No.1, UcPure 3.3V with two 3000F ultracapacitors
This power supply is very special, it uses two 3000F ultracapacitors in pure class A mode. There are no active components so could get the best low 1/f noise performance. I have to say it’s really a game changer. No doubt the sound quality is the best. Better than both No.3 and No.2. Soundstage was wider and deeper. With more details in the air around the atmosphere. The 3000F ultracapacitors themselves could be even more expensive than the power supply. That would be a disadvantage.
And also, any two amplifiers sine to square configuration will have RF crosstalk issue as long as they share ground or power rail. My tests show that the crosstalk can degrade the time jitter performance at output. I have a smart idea for SinePi V6.0 to make it the first design that uses a unified sine to square converter for both frequencies to eliminate this crosstalk issue. Nobody has had this idea before.
All the 3 power supplies are galvanically isolated from the input at working mode. So, common mode EMI noise will also be eliminated.
Please note, all of the tests were done in my system and based on my own experiences. The results could be different under different systems. And also, different persons may have different subjective experiences.
Other links:
1.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-657.html#post6668751
2.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-660.html#post6671042
3.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-662.html#post6675622
4.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-664.html#post6678025
5.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-673.html#post6686256
6.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-677.html#post6690153
7.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-682.html#post6704886
8.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-687.html#post6718041
Ian
Looking for the best power supply solutions for SienPi (or FifoPi clean side)
SinePi sine to square converter (squarer) can be looked upon as a high gain amplifier. That’s why a better power supply can also make more improvements.
I did a lot of tests trying to find out the best power supply (shared with FifoPi clean side) for SinePi . Here is the list of the three top power supplies I experienced. They really make an audible difference in my system.
Long story short, here are the results
No.3: LifePO4 Mini 3.3V in two battery cells parallel configuration
Better than all low noise LDO active power supplies. And also better than the other 3.3V LifePO4 battery power supplies in single cell configuration. I have to say the sound quality was gorgeous. It brings all the DRIXO OCXO low phase noise performance to the best possible sound quality level as it should be. It was playing very musical, warm and flawless in my system. BTW, LifePO4Mini is a low cost pure LifePO4 power supply I designed recently.
No.2, UcConcitioner3.3V with the LifePO4 Mini 3.3V two battery configuration
With all the signature that No.3 has, but better 3D image focusing, sound stage and high range.
No.1, UcPure 3.3V with two 3000F ultracapacitors
This power supply is very special, it uses two 3000F ultracapacitors in pure class A mode. There are no active components so could get the best low 1/f noise performance. I have to say it’s really a game changer. No doubt the sound quality is the best. Better than both No.3 and No.2. Soundstage was wider and deeper. With more details in the air around the atmosphere. The 3000F ultracapacitors themselves could be even more expensive than the power supply. That would be a disadvantage.
And also, any two amplifiers sine to square configuration will have RF crosstalk issue as long as they share ground or power rail. My tests show that the crosstalk can degrade the time jitter performance at output. I have a smart idea for SinePi V6.0 to make it the first design that uses a unified sine to square converter for both frequencies to eliminate this crosstalk issue. Nobody has had this idea before.
All the 3 power supplies are galvanically isolated from the input at working mode. So, common mode EMI noise will also be eliminated.
Please note, all of the tests were done in my system and based on my own experiences. The results could be different under different systems. And also, different persons may have different subjective experiences.
Other links:
1.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-657.html#post6668751
2.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-660.html#post6671042
3.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-662.html#post6675622
4.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-664.html#post6678025
5.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-673.html#post6686256
6.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-677.html#post6690153
7.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-682.html#post6704886
8.https://www.diyaudio.com/forums/dig...mate-weapon-fight-jitter-687.html#post6718041
Ian
Attachments
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Hi Ian,
so we have to add the second sine to square converter to our FIFO, otherwise you are not the first using a single sine to square converter for both frequencies.
It looks like somebody has already had this idea before.
Sorry to say but it was pretty obvious.
Andrea
