本帖最後由 PhantomGTR 於 2014-8-5 16:20 編輯
karsonkwan 發表於 2014-8-5 16:08 static/image/common/back.gif
未。。。
Replacing mpd:remountrw
apt-get update
apt-get upgrade
wget http://www2.voyage.hk/dists/experimental/mpd/mpd_0.17.6-1_i386.deb
dpkg -i mpd_0.17.6-1_i386.deb
apt-get update
apt-get -f install呢段 for voyage mpd kit 2.0 only.
Replacing with Japanese RT kernel in Kit 2.0:wget http://mimizukobo.sakura.ne.jp/upload/linux-image-3.14.12-rt9-40719d_3.14.12-rt9-40719d-10.00.Custom_i386.deb
dpkg -i linux-image-3.14.12-rt9-40719d_3.14.12-rt9-40719d-10.00.Custom_i386.debThen you may also add "clocksource=hpet" in /boot/grub/menu.lst, after "console=ttyS0,115200n8" at line 13, such that:
kernel /vmlinuz root=LABEL=VOYAGE_FSconsole=ttyS0,115200n8 clocksource=hpet
then reboot.
PhantomGTR 發表於 2014-8-5 16:12 static/image/common/back.gif
Replacing mpd:呢段 for voyage mpd kit 2.0 only.
Replacing with Japanese RT kernel in Kit 2.0:Then...
呢排試緊個鐘。。。。我怕downgrade左唔岩聽又多樣野煩。
karsonkwan 發表於 2014-8-5 18:23 static/image/common/back.gif
呢排試緊個鐘。。。。我怕downgrade左唔岩聽又多樣野煩。
我試了，你放心去馬。
而且，install 返原裝套 voyage mpd 0.92 都係好快既事。
PhantomGTR 發表於 2014-8-5 18:25 static/image/common/back.gif
我試了，你放心去馬。
而且，install 返原裝套 voyage mpd 0.92 都係好快既事。 ...
我想問點解你會知果個version靚聲d?唔通你逐個逐個試。。。{:6_188:}
karsonkwan 發表於 2014-8-5 18:30 static/image/common/back.gif
我想問點解你會知果個version靚聲d?唔通你逐個逐個試。。。
總之我試過啦，你都快D試下。 {:8_372:}
PhantomGTR 發表於 2014-8-5 18:33 static/image/common/back.gif
總之我試過啦，你都快D試下。
學草哥話齋，人類聽覺既記憶係好短暫的，我比較特別。。。只有15秒到。。。如果中間你同我講野就得3秒 {:6_179:}
如果你downgarde 完都聽得出分別，咁真係天與地的分別。。。
karsonkwan 發表於 2014-8-5 18:39 static/image/common/back.gif
學草哥話齋，人類聽覺既記憶係好短暫的，我比較特別。。。只有15秒到。。。如果中間你同我講野就得3秒 {: ...
因為真係幾誇張。。。
(Post76 Android 手機版送出)
本帖最後由 karsonkwan 於 2014-8-6 09:12 編輯
咁我比小小Voyage MPD Kit 2.0 同QNAP 469L 資料大家參考下, 不過唔係整理得好好, 大家要花D時間睇
QNAP 469L (藍色)
IP: 192.168.1.1
Voyae MPD Kit 2.0 (紅色)
IP: 192.168.1.2
CAT7 直駁 兩邊都係1000Mbits/sec MTU 9000
MPD to QNAP
^Croot@voyage:~# iperf -c 192.168.1.1
------------------------------------------------------------
Client connecting to 192.168.1.1, TCP port 5001
TCP window size: 94.2 KByte (default)
------------------------------------------------------------
local 192.168.1.2 port 47682 connected with 192.168.1.1 port 5001
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec1.10 GBytes 942 Mbits/sec
local 192.168.1.1 port 5001 connected with 192.168.1.2 port 47682
[ ID] Interval Transfer Bandwidth
0.0- 1.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
1.0- 2.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
2.0- 3.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
3.0- 4.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
4.0- 5.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
5.0- 6.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
6.0- 7.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
7.0- 8.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
8.0- 9.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
9.0-10.0 sec0.00 Bytes0.00 bits/sec
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec1.10 GBytes 941 Mbits/sec
QNAP to MPD
^C[~] # iperf -c 192.168.1.2
------------------------------------------------------------
Client connecting to 192.168.1.2, TCP port 5001
TCP window size: 22.5 KByte (default)
------------------------------------------------------------
local 192.168.1.1 port 59717 connected with 192.168.1.2 port 5001
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec1.10 GBytes 943 Mbits/sec
root@voyage:~# iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
local 192.168.1.2 port 5001 connected with 192.168.1.1 port 59717
[ ID] Interval Transfer Bandwidth
0.0- 1.0 sec 112 MBytes 936 Mbits/sec
1.0- 2.0 sec 112 MBytes 941 Mbits/sec
2.0- 3.0 sec 112 MBytes 942 Mbits/sec
3.0- 4.0 sec 112 MBytes 942 Mbits/sec
4.0- 5.0 sec 112 MBytes 942 Mbits/sec
5.0- 6.0 sec 112 MBytes 942 Mbits/sec
6.0- 7.0 sec 112 MBytes 942 Mbits/sec
7.0- 8.0 sec 112 MBytes 942 Mbits/sec
8.0- 9.0 sec 112 MBytes 942 Mbits/sec
9.0-10.0 sec 112 MBytes 942 Mbits/sec
0.0-10.0 sec1.10 GBytes 941 Mbits/sec
QNAP to MPD
[~] # iperf -c 192.168.1.2 -u -b 2m
------------------------------------------------------------
Client connecting to 192.168.1.2, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
local 192.168.1.1 port 34302 connected with 192.168.1.2 port 5001
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec
Sent 1702 datagrams
Server Report:
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec0.025 ms 0/ 1702 (0%)
root@voyage:~# iperf -s -i 1
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
local 192.168.1.2 port 5001 connected with 192.168.1.1 port 59717
[ ID] Interval Transfer Bandwidth
0.0- 1.0 sec 112 MBytes 936 Mbits/sec
1.0- 2.0 sec 112 MBytes 941 Mbits/sec
2.0- 3.0 sec 112 MBytes 942 Mbits/sec
3.0- 4.0 sec 112 MBytes 942 Mbits/sec
4.0- 5.0 sec 112 MBytes 942 Mbits/sec
5.0- 6.0 sec 112 MBytes 942 Mbits/sec
6.0- 7.0 sec 112 MBytes 942 Mbits/sec
7.0- 8.0 sec 112 MBytes 942 Mbits/sec
8.0- 9.0 sec 112 MBytes 942 Mbits/sec
9.0-10.0 sec 112 MBytes 942 Mbits/sec
0.0-10.0 sec1.10 GBytes 941 Mbits/sec
UTP QNAP to MPD
[~] # iperf -c 192.168.1.2 -u -b 2m
------------------------------------------------------------
Client connecting to 192.168.1.2, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
local 192.168.1.1 port 55252 connected with 192.168.1.2 port 5001
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec
Sent 1702 datagrams
Server Report:
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec0.052 ms 0/ 1702 (0%)
root@voyage:~# iperf -s -u -i 1
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size:160 KByte (default)
------------------------------------------------------------
local 192.168.1.2 port 5001 connected with 192.168.1.1 port 55252
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
0.0- 1.0 sec 244 KBytes2.00 Mbits/sec 0.021 ms 0/170 (0%)
1.0- 2.0 sec 244 KBytes2.00 Mbits/sec 0.028 ms 0/170 (0%)
2.0- 3.0 sec 244 KBytes2.00 Mbits/sec 0.062 ms 0/170 (0%)
3.0- 4.0 sec 244 KBytes2.00 Mbits/sec 0.033 ms 0/170 (0%)
4.0- 5.0 sec 244 KBytes2.00 Mbits/sec 0.034 ms 0/170 (0%)
5.0- 6.0 sec 244 KBytes2.00 Mbits/sec 0.029 ms 0/170 (0%)
6.0- 7.0 sec 244 KBytes2.00 Mbits/sec 0.041 ms 0/170 (0%)
7.0- 8.0 sec 244 KBytes2.00 Mbits/sec 0.032 ms 0/170 (0%)
8.0- 9.0 sec 244 KBytes2.00 Mbits/sec 0.037 ms 0/170 (0%)
9.0-10.0 sec 244 KBytes2.00 Mbits/sec 0.057 ms 0/170 (0%)
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec 0.053 ms 0/ 1702 (0%)
UTP MPD to QNAP
root@voyage:~# iperf -c 192.168.1.1 -u -b 2m
------------------------------------------------------------
Client connecting to 192.168.1.1, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:160 KByte (default)
------------------------------------------------------------
local 192.168.1.2 port 41492 connected with 192.168.1.1 port 5001
[ ID] Interval Transfer Bandwidth
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec
Sent 1702 datagrams
Server Report:
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec 0.015 ms 0/ 1702 (0%)
[~] # iperf -s -u -i 1
------------------------------------------------------------
Server listening on UDP port 5001
Receiving 1470 byte datagrams
UDP buffer size: 208 KByte (default)
------------------------------------------------------------
local 192.168.1.1 port 5001 connected with 192.168.1.2 port 41492
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
0.0- 1.0 sec 244 KBytes2.00 Mbits/sec0.021 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
1.0- 2.0 sec 244 KBytes2.00 Mbits/sec0.016 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
2.0- 3.0 sec 244 KBytes2.00 Mbits/sec0.016 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
3.0- 4.0 sec 244 KBytes2.00 Mbits/sec0.027 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
4.0- 5.0 sec 244 KBytes2.00 Mbits/sec0.018 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
5.0- 6.0 sec 244 KBytes2.00 Mbits/sec0.015 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
6.0- 7.0 sec 244 KBytes2.00 Mbits/sec0.015 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
7.0- 8.0 sec 244 KBytes2.00 Mbits/sec0.019 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
8.0- 9.0 sec 244 KBytes2.00 Mbits/sec0.016 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
9.0-10.0 sec 244 KBytes2.00 Mbits/sec0.016 ms 0/170 (0%)
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
0.0-10.0 sec2.39 MBytes2.00 Mbits/sec0.016 ms 0/ 1702 (0%)
karsonkwan 發表於 2014-8-6 05:36 static/image/common/back.gif
咁我比小小Voyage MPD Kit 2.0 同QNAP 469L 資料大家參考下, 不過唔係整理得好好, 大家要花D時間睇
QNAP...
What's the conclusion?
obee 發表於 2014-8-6 09:58 static/image/common/back.gif
What's the conclusion?
睇黎MPD 對QNAP 網絡上既JITTER 都唔太高, buffer應可解決問題.
但係通常D人講緊CAS 最煩既JITTER 問題, 應該係講緊由MUSIC PLAYER 到 DAC 既JITTER?
