RaspyFi - Topic: Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/ Simple:Press Version 5.2.6 mannen66 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1250 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1250 Tested a bit more today.
Getting the occasional "click" still when playing 24/96, and a bit more on 24/192.
Samba using a bit more resources than NFS. And getting a bit more dropouts, I think it is dt. processor power.

]]> Wed, 25 Sep 2013 09:53:25 +0200 mannen66 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1235 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1235 ok.
I did not change anything in my router. The default MTU there is 1500.
I am running NFS now. Have not tried Samba after I changed MTU to 746. Will try later....

this is my ifconfig output:

eth0 Link encap:Ethernet HWaddr b8:27:eb:1d:7e:aa
inet addr:192.168.1.147 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:746 Metric:1
RX packets:2589943 errors:0 dropped:0 overruns:0 frame:0
TX packets:161533 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3638454859 (3.3 GiB) TX bytes:28069815 (26.7 MiB)

this is my alsa output:

root@Raspyfi:/etc/network# cat /proc/asound/card0/pcm0p/sub0/hw_params
access: RW_INTERLEAVED
format: S24_3LE
subformat: STD
channels: 2
rate: 96000 (96000/1)
period_size: 12000
buffer_size: 48000

]]> Tue, 24 Sep 2013 16:10:45 +0200 cong_99 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1233 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1233 Thanks! Found out I have to log in as root to run ifconfig. :-)

Unfortunately it's still clicking and stumbling (tried MTU sizes of 746, 1492 and 1500). I will try to play with the values a bit more, and perhaps also on the NAS' Ethernet frame size and the router's MTU as well to see if there are any effects. I wonder if it's an issue with a marginal LAN connection... !

]]> Tue, 24 Sep 2013 15:51:29 +0200 mannen66 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1232 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1232 From one noob to another:
log on to your raspberry (via ssh if you are running linux, or use putty if you are running windows).
run the command: ifconfig eth0 mtu 746
If this does the trick for you, you can edit your interface config, so it will be set at boot.
To edit the file, run the command: nano /etc/network/interfaces

EDIT:
My interfaces file looks like this:

auto lo
iface lo inet loopback

auto eth0
mtu 746
iface eth0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

]]> Tue, 24 Sep 2013 15:19:09 +0200 cong_99 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1231 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1231 Hi! I'd like to test if this solves my clicking problems - can you clarify where you set your MTU size? Is this on your NAS? Or router? (sorry if this is a noob question).

Thanks!

]]> Tue, 24 Sep 2013 14:30:58 +0200 mannen66 on Clicking sound when playing from network server. http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1230 Tweaks and optimizations http://www.raspyfi.com/forum/tweaks-and-optimizations/clicking-sound-when-playing-from-network-server/#p1230 Had a lot of problems with clicking sounds when playing from my NFS share on my server.
After some googleing I found that a lot of people report that the clicking sound appear when network traffic is apparent.
Decided to try to experiment with MTU size, and found that if I set MTU to 1492 or 746, the clicking dissapeared.
Even when playing 24/192 from my server, there is no clicking at all. (This is re-sampled to 24/96 in my poor little raspberry because max input rate on my Hegel HD2 is 24/96).
My raspberry is overclocked to 1GHz, and uses 50-70% CPU when resampling from 24/192 to 24/96.
When playing 24/96 directly, it uses 6-7% CPU.

]]> Tue, 24 Sep 2013 13:59:19 +0200