Hi,

I'm investigating whether WiFI bandwidth/speed may be causing the 24/96 dropouts, Below is output from a couple of network commands that show a snapshot of the stats for the WiFi Access Point and the USB WiFi Adapter on the Pi while playing a 24/96 track.

I'm not seeing anything that would indicate WiFI issues, The bit rates, signal quality, signal level, noise level and retries all seem to be golden. If there is another tool I can use I will try, but for now the data suggests that the dropouts are not because of issues related to WiFI RF.

Since the dropouts occur at more or less regular intervals, and there is no loss of music, i.e., there is a brief a pause then the music picks up where it left off, I am thinking that a buffer underrun is occurring somewhere in the system. I increased the MPD buffers using the WebGUI but that only delays the onset of the dropouts.

Possibly there are WiFi adapter settings that could be tested for example, TX/Rx buffer size, etc. I will look into this.

WIFI STATS:

ACCESS POINT – ASUS RT-N66U w/Merlin .26b firmware

[email protected]:~$ sudo iwlist wlan0 scan
wlan0 Scan completed :
Cell 01 – Address: 60:A4:4C:29:FA:D0
ESSID:"AirnetN2"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=100/100 Signal level=100/100

USB WIFI ADAPTER – Edimax EW-7811UnR2 150 Mbps

[email protected]:~$ sudo iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:"AirnetN2" Nickname:""
Mode:Managed Frequency:2.412 GHz Access Point: 60:A4:4C:29:FA:D0
Bit Rate:150 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:****-****-****-****-****-****-****-**** Security mode:open
Power Management:off
Link Quality=100/100 Signal level=88/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0