又平又正的 CAS (MPD on Linux) - 2013-05-02

elo

obee 發表於 2013-3-15 23:37
Sorry for late reply.
Congrats on your success. I guess you just changed the "hw" value in mpd.con ...

You are right!

elo

Obee hing

Another problem, it seems my DAC cannot lock with Pogoplug when playing 24/192 files.  My DAC shows, it is still in previous setting (e.g. 44.1) and intermittent sound comes from the speaker.  Any idea ?

Thanks.

obee

elo 發表於 2013-3-16 02:27
Obee hing

Another problem, it seems my DAC cannot lock with Pogoplug when playing 24/192 files.  My ...

I guess you have not disable the "44100" sample rate setting on audio device, may be you can download my mpd.conf for your reference.
mpd.zip (3.7 KB, 下載次數: 913)

2013-3-16 21:20 上傳

點擊文件名下載附件

elo

obee 發表於 2013-3-16 21:21
I guess you have not disable the "44100" sample rate setting on audio device, may be you can downl ...

Obee Hing

You are the man .  

I just remark the line "44100" and done, it works.  

I just made a quick comparison to my Voyage starter kit and I can say they perform almost the same.

Thanks again.  

elo

Obee Hing

Sorry there is another question, I have some .dsf files, I tried many times to update the database but the .dsf does not show up and thus I cannot select to play.  What is the problem ?

Thanks.

obee

elo 發表於 2013-3-17 00:04
Obee Hing

You are the man  .  

Yes! The "Voyage starter kit" is basically similar to Cubox and Pogoplug.
If you use Pogoplug, remember not to power off it without putty/ssh into and type:

1. sync
   
2. poweroff

複製代碼

Then wait 1 minutes until no USB activity on the thumb drive. It won't turn off the light automatically.

http://archlinuxarm.org/forum/vi ... ba5610&start=10

I have the same issue as the link above, and I spent half day to figure it out...

For DSD related issues, sorry that I don't have those files and no DSD DAC at this moment, may be some other ching could help.

colorp

週末買了 Pogoplug回家，用 sheeva plug image 同 VAMP image 都 boot 唔到機。
裝 Arch Linux 就 ok，但 support 唔到 ARCAM rDAC（個超舊款大陸 16bit/48KHz USB DAC 就 support到；而個 rDAC 插落 Voyage MPD starter kit 就即刻 work）。
睇來仲有排攪......

obee

colorp 發表於 2013-3-18 18:01
週末買了 Pogoplug回家，用 sheeva plug image 同 VAMP image 都 boot 唔到機。
裝 Arch Linux 就 ...

Just done a search in google on your dac model:
http://www.computeraudiophile.co ... view/comments4.html

It seems your dac is supported by linux in general, may be you have invalid setting in archlinux (it has incorrect setting by default in my case). Please check in sequence:
1. Is it up and running (listening 6600 on all interfaces?)
2. Can ipad connects to it?
3. Check mpd.conf, see under "audio_output" section, keep it as simple as possible, note that the value of "device"

colorp

obee 發表於 2013-3-18 22:07
Just done a search in google on your dac model:
http://www.computeraudiophile.com/content/375-arca ...

Debian Wheezy and Arch Linux both can recognize ARCAM rDAC properly, but there is problem when trying to play music with it.

I have done a lot of search, installation, and tests last night. At the end, it seems that the rDAC works like a charm with x86 ALSA but not ARM (i.e. PogoPlug, CuBox, Raspberry Pi, etc.). Thus I had given up the PogoPlug + rDAC combo - at least for now.

The other issue is that the Debian squeeze/Wheezy and Arch Linux distributions do not come with read-only root file system by default. Without read-only root-fs, the PogoPlug must shutdown properly before power off. Otherwise, the USB drive may become corrupted - I had already hit this for a few times.  To build the read-only root-fs system, we will have to do quite some customizations - for which I don't have enough time right now, I have to give up again.

At last, I have settled with Raspberry Pi + MPD + an old 16bit/48KHz USB DAC. Raspberry Pi can only work with SOME slow USB DAC.

I see a lot of potentials with the PogoPlug, but there's still a long road to come. I have ordered a serial-to-USB adapter from eBay. Hope it can be helpful when doing the customization in the future (as serial console).

obee

colorp 發表於 2013-3-19 19:16
Debian Wheezy and Arch Linux both can recognize ARCAM rDAC properly, but there is problem when try ...

I see. Sad to hear that. But thanks for telling me the USB to serial thing.
I have ordered a USB to I2S / Coaxial DDC, it could be installed inside the pogoplug. I will post some photos after I have done it.

colorp

obee 發表於 2013-3-19 19:58
I see. Sad to hear that. But thanks for telling me the USB to serial thing.
I have ordered a USB t ...

I2S DDC? 等睇師兄report啊。

baki1105

想請問如果我隻router插隻external HD 可唔可以比pogoplug當NAS咁MOUNT?THX

obee

baki1105 發表於 2013-3-20 11:15
想請問如果我隻router插隻external HD 可唔可以比pogoplug當NAS咁MOUNT?THX

可以, 如果你router支援 file sharing功能. 呢個只係你個router嘅feature問題

colorp

baki1105 發表於 2013-3-20 11:15
想請問如果我隻router插隻external HD 可唔可以比pogoplug當NAS咁MOUNT?THX

最貴個d router 可能好d，但一般 router (例如我的 ASUS RT-N16) share file performance 認真馬虎。

baki1105

colorp 發表於 2013-3-21 16:16
最貴個d router 可能好d，但一般 router (例如我的 ASUS RT-N16) share file performance 認真馬虎。 ...

我用ASUS RT-N66U Wireless-N900都已經除AC外最好的
應該OK卦,仲未有時間試~我見個setup page入面有條path比我地
唔知係唔係用來比人mount呢,功能太多唔識用呢

CAS2012

各位 ching, 多謝 obee 在這裡推介了 pogoplug，我照單改為 VAMP, 用 Synology 內裡的 Squeezebox server stream 入 pogoplug，理論上, 因為 server 同 client 功能分開, hard disk spinning noise 經 network 後可以消除, 只要 用 LPS 供電 router 同 pogoplug, 會比 pogoplug - Archlinux + mpd 好。聽了多日, NAS Squeezebox server +streaming + pogoplug VAMP 比 NAS audio station USB 直出 DAC 好聲, 這 $100 的network player 超超值呀。

elo

CAS2012 發表於 2013-3-24 18:20
各位 ching, 多謝 obee 在這裡推介了 pogoplug，我照單改為 VAMP, 用 Synology 內裡的 Squeezebox server s ...

Obee hing is really very helpful.

I also tried Synology DS audio to play music file store inside itself and find the sound was not that good when compare to my then Mac mini + Amarra.

I will buy another Pogoplug and install Arch Linux as Obee hing also explained here.

CAS2012

elo ching,
I use pogoplug as VAMP only, the idea is to stream music data from NAS through NAS's internal Squeezebox Server to avoid HDD spinning noise. I think network player will be popular, people inclined to place music data away from HDD to avoid high frequency noise, where as mpd direct play USB HDD will have a common grounding issue.

obee

CAS2012 發表於 2013-3-25 11:27
elo ching,
I use pogoplug as VAMP only, the idea is to stream music data from NAS through NAS's inte ...

CAS2012 hing,

The VAMP is a good way to play as "squeezebox touch replacement". I also tried VAMP. In my case, I installed both Squeezebox server and squeezebox client (the squeezelite) on pogoplug. (actually the server installation script is already bundled in the VAMP, I just run "setup" to execute that script. Squeezelite is pre-installed as well)

I found the response time (using ipad) is little bit faster than my previous Squeezebox Touch + NAS (DS213). Regarding the sound quality, I don't think there is any big difference.

For MPD (using Arch Linux) on Pogoplug, the idea is different from SB Server + SBLite.
MPD on pogoplug just a player, and it reads file source via NFS / CIFS shared by NAS. Strictly speaking, this is not a client-server mode but just simply a standalone application. It's just the MPD doesn't care where you place the music files. Again, I found that the response time of MPD is much faster than SB implementation. If you have time, find a spare 2G or 4G USB key and install Arch Linux + MPD and notice the sound quality of using MPD vs SB. You judge with yourself.

CAS2012

obee hing,
Soundwise, I knew mpd is a very good music player. I tried Voyage starter kit borrowed from hkborn hing, it was quick in response and definite a good CAS solution. However, by the time to build Linux + mpd from scratch, it was a bad experience in the settings of mpd. Tried Ubuntu studio and install mpd, but the settings not right, I cannot log in the control of mpd as 99% resources are used by mpd along, it may the format conversion or something is looping on and on side. Second is the mapping of music file from USB, from remote server, all these is quite a challenge to a common non-linux Hi-Fi user. The output settings, PULSE, ALSA etc, all make my head spinning.
I just tried  NAS's Squeexebox server with USB HDD and USB flash memory attached to NAS USB inputs, mapping music file is a simple selection of music folder and can be done within 2 minutes.
CAS consists hardware, software, user interface design for user to access/control, and reliability that can be working without bug. I think pogoplug - VAMP is on my top list.
I bought a few pogoplugs and ready to try Archlinux +mpd in Easter. Linux high hand Obee hing is here,  my bad experience wilI be a past.