piCorePlayer6.1.0-Xenomai-44.1-48KHz雙機入門簡易安裝教學

[sam0402]

山姆兄，您要的資料 PM 給您了。
您的 kernel 使用 mpd 和 hqplayer 都沒問題。
我原本猜是 udev 分配權限的問題，但又好像不是。

這下難查了！其他的軟體可以播放，看來不是Sound Card Driver的問題。
如果是Squeezelite的問題，在官方的Kernel 又可以???

小弟Compile 的Squeezlite可用否？
或許要看 /var/log/squeezelite 的 log 來debug了。

[silaslin]

山姆兄 Compile 的 Squeezlite 也不能用
您的 kernel 抓不到這些資料，只找到顯示卡的
應該是 HDA Intel PCH 這部分被閹割了

default:CARD=PCH
HDA Intel PCH, ALC1220 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, ALC1220 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
Front output / input
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
HDA Intel PCH, ALC1220 Digital
IEC958 (S/PDIF) Digital Audio Output

speaker-test -D default -c 2
=============================
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name
ALSA lib conf.c:5111:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5599:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
Playback open error: -2,No such file or directory

aplay -D default:myUSBDAC
===========================

ALSA lib pcm_direct.c:2133:(_snd_pcm_direct_new) unable to create IPC semaphore
aplay: main:831: audio open error: Function not implemented

[sam0402]

...
本來想試試雙機播放，可惜 squeezelite 無法在山姆兄的 kernel 播放，在其他的 kernel 都可以。
...

支援Squeezeilte和有HDMI的音效輸出的功能的版本：
https://raw.githubusercontent.com/sa...64.pkg.tar.zst
https://raw.githubusercontent.com/sa...64.pkg.tar.zst

試試看能不能用

[silaslin]

支援Squeezeilte和有HDMI的音效輸出的功能的版本：
試試看能不能用

感謝山姆兄，本來想等個幾天再看看，沒想到你戰鬥力這麼強。
這個版本可以用了，而且您的 squeezelite 超級好聽。

不過查了一下 log 檔，還是有出現一些 error
==========================
[03:32:51.404509] _check_header:179 unknown format - can't parse header
[03:32:52.324810] _check_header:179 unknown format - can't parse header
[03:37:08.070889] _check_header:179 unknown format - can't parse header
[03:42:09.134364] _check_header:179 unknown format - can't parse header
[03:46:34.479063] _check_header:179 unknown format - can't parse header
[03:50:31.514092] _check_header:179 unknown format - can't parse header
[03:55:16.168261] _check_header:179 unknown format - can't parse header
[03:59:12.602552] _check_header:179 unknown format - can't parse header
[04:03:48.053048] _check_header:179 unknown format - can't parse header
[04:07:57.092200] _check_header:179 unknown format - can't parse header
[04:12:21.035622] _check_header:179 unknown format - can't parse header

所以我把 log 停掉了

[sam0402]

Arch Linux Q176 APL版　PC環境完備

請參閱
http://www.stsd99.com/phpBB3/viewtop...b86d920#p20388

[sam0402]

小弟也Compile了一個alsa-lib for Arch，使用跟pCP8一樣的版本。
有興趣的可以試試看，希望能用，聲音更好！

https://raw.githubusercontent.com/sa...64.pkg.tar.zst

[silaslin]

小弟也Compile了一個alsa-lib for Arch，使用跟pCP8一樣的版本。
有興趣的可以試試看，希望能用，聲音更好！

https://raw.githubusercontent.com/sa...64.pkg.tar.zst

感謝山姆兄，系統更上一層樓
需要用下面的指令覆蓋原有檔案
pacman -U --overwrite '*' alsa-lib-1.1.9-1-x86_64.pkg.tar.zst

[sam0402]

感謝山姆兄，系統更上一層樓
需要用下面的指令覆蓋原有檔案
pacman -U --overwrite '*' alsa-lib-1.1.9-1-x86_64.pkg.tar.zst

因為我沒環境試，所以alsa-lib聲音有更好？
如果是，這樣pCP8的經驗全用在x86了。

[seeteeyou]

Intel LGA3647處理器CPU測試版ES 6126 6130 6132 QL1H QL1M QLH1
https://item.taobao.com/item.htm?id=651041432826

英業達3647主板 支持ESQS正式版 志強鉑金 C622 雙子星 刀片主板
https://item.taobao.com/item.htm?id=661410158991

---

相當便宜的組合，用雙 Xeon CPUs 的單機來跑 HQP+NAA 或者 LMS+Squeezelite 就爽歪歪了：

https://audiophilestyle.com/forums/t...omment-1075198

And he kindly helped to assure me that it is OK and he further offered to help me install a NAA in the same extreme computer making use of the two CPUs available. And I certainly would like to give it a try. So next up is the extreme HQ+NAA. And that's a WOW. The performance just leaps to another level. The presence , the focus as well as the soundstage all goes to another level. the string quartet now just sits right in front of you. The improvement in orchestral piece is not as obvious in the chamber music or jazz or unaccompanied voice. But it is the clear winner. This confirms my experience of using a NAA together with HQplayer is always beneficial and a NAA using optimised computers like the extreme actually helps tremendously to boost the SQ. It has all along been my experience that the better computer used as NAA the better is the sound.

https://audiophilestyle.com/forums/t...omment-1075205

I am also enjoying HQP+NAA on the Extreme, and there is indeed an SQ bump from separating the noisier (relatively, since PCM upsampling is very light) HQPlayer process doing upsampling and the NAA doing rendering onto different processors. This is just another example of why having 2 physical NUMA nodes (aka processors) enables a raft of optimizations that were just not possible on my single processor custom server.

https://audiophilestyle.com/forums/t...omment-1079668

Software changes on this computer make almost as much difference as a clock. I keep tweaking it and it keeps sounding better and better. The last experiment I've done, inspired by @austinpop and @romaz was to install HQplayer with affinities on one CPU and NAA with affinities to the other CPU. It's good to have two processors! I also created a loopback interface with ipv6. And I used ipv6 via the loopback interface to stream from the HQP to NAA. No upsampling, just using HQP as a bit perfect player. This brought the server that was sounding so great already to yet another level. Everything sounds so effortless now.

---

What is NUMA? — The Linux Kernel documentation
https://www.kernel.org/doc/html/v5.15/vm/numa.html

numa - overview of Non-Uniform Memory Architecture
https://man.archlinux.org/man/numa.7.en

numactl/numactl: NUMA support for Linux - GitHub
https://github.com/numactl/numactl

Arch Linux - numactl 2.0.14-1 (x86_64)
https://archlinux.org/packages/extra/x86_64/numactl/

AUR (en) - numactl-git
https://aur.archlinux.org/packages/numactl-git/

AUR (en) - lib32-libnuma
https://aur.archlinux.org/packages/lib32-libnuma/

[seeteeyou]

支援Squeezeilte和有HDMI的音效輸出的功能

看來可以跳過樹莓派了，就好像 2020 年剛剛起步的時候那種 HDMI → I²S 方法，而這個版本比較像樣：

HDMI/MHL數字界面 分離提取音頻I2S/DSD/光纖/同軸 HDMI轉I2S/IIS
https://item.taobao.com/item.htm?id=530846802496

HDMI分離提取數字音頻信號I2S/DSD/SPDIF模塊
https://item.taobao.com/item.htm?id=573460909636

外國的樂友也是選擇同類型的產品：

https://forum.psaudio.com/t/it-works...2s-input/15630

---

雖然只是支援同軸輸出，但是對岸的樂友試過 eARC 的效果也可以接受，或許 HDMI 輸出的音效並非那麼糟糕？

http://www.erji.net/forum.php?mod=vi...ad&tid=2240784

---

Furutech HF-X-NCF評測：首款採用獨家NCF技術，將8K HDMI線帶往新境界
https://www.audionet.com.tw/thread-14368-1-1.html

Furutech HF-A-NCF：運用NCF獨門技術的光纖HDMI線
https://www.audionet.com.tw/thread-14433-1-1.html

極高速傳輸之最佳影音品質: Furutech HF-X-NCF HDMI 8K V2.1線材
https://tw.my-hiend.com/極高速傳輸之最佳影音品質...8k-v2-1線材/

長距離極高速8K傳輸: Furutech HF-A-NCF HDMI 8K V2.1 AOC線材
https://tw.my-hiend.com/長距離極高速8k傳輸-f...2-1-aoc線材/

除了日本的 AIM 品牌，Furutech 亦推出了一些不錯的線材。

---

當然 USB 線材的選擇比較多，對岸的介面也不錯：

U30 USB數字界面PCM1536 DSD1024兼容Amanero意大利XMOS轉I2S自主
https://item.taobao.com/item.htm?id=605346539299

AL 的作者也是使用 XING 的介面：

https://audiophilestyle.com/forums/t...omment-1166856

另一優秀的選擇，外國的用家都讚賞他的效果：

http://jlsounds.com/i2soverusb.html