Re: RTP stream sample rate and latency problem "Sample rates too different, not adjusting"

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On 17/06/2022 21:54, Chris Beat wrote:
Hi,

in my setup I have a Raspberry with an old USB soundcard as a RTP sender and an old netbook as the
RTP receiver. I use the netbook to connect a bluetooth speaker to it.

If important: this is unicast RTP.

If I start streaming music on the sender side, it takes a long time until I get output on the
receiver side (with "long" I mean magnitude of: several seconds, up to minutes), and also the
"pitch" of the music is audible lower / slower than what I can hear on the sending device.

Troubleshooting steps so far:

If I start the pulseaudio daemon on the sender side (with module-rtp-send), then on the receiver
side, I get this message in the log (about every 5 seconds):

"Sample rates too different, not adjusting (44100 vs. 57567)."

The 57567 value slowly increases in time.

I also noticed that on the receiver side, the sink-input "Buffer Latency" quickly increases over
time, as seen here for example:


~$ pactl list sink-inputs
Sink Input #0
     Driver: module-loopback.c
     Owner Module: 7
     Client: n/a
     Sink: 1
     Sample Specification: s16le 2ch 44103Hz
     Channel Map: front-left,front-right
     Format: pcm, format.sample_format = "\"s16le\""  format.rate = "44100"  format.channels = "2"
format.channel_map = "\"front-left,front-right\""
     Corked: no
     Mute: no
     Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
             balance 0.00
     Buffer Latency: 135137 usec
     Sink Latency: 69810 usec
     Resample method: speex-float-1
     Properties:
         media.role = "abstract"
         media.name = "Loopback from Monitor of NullSink"
         media.icon_name = "audio-input-microphone"

Sink Input #1
     Driver: module-rtp-recv.c
     Owner Module: 10
     Client: n/a
     Sink: 0
     Sample Specification: s16be 2ch 44100Hz
     Channel Map: front-left,front-right
     Format: pcm, format.sample_format = "\"s16be\""  format.rate = "44100"  format.channels = "2"
     Corked: no
     Mute: no
     Volume: front-left: 65536 / 100% / 0.00 dB,   front-right: 65536 / 100% / 0.00 dB
             balance 0.00
     Buffer Latency: 13670815 usec
     Sink Latency: 6885 usec
     Resample method: speex-float-1
     Properties:
         media.role = "stream"
         media.name = "RTP Stream (PulseAudio RTP Stream on raspberrypi)"
         rtp.session = "PulseAudio RTP Stream on raspberrypi"
         rtp.origin = "pi 3864408555 0 IN IP4 192.168.2.30"
         rtp.payload = "10"
~$




Here the "Buffer Latency" is already almost 14 seconds, this is only shortly (1-2 minutes) after a
restart of the daemon.

Any idea on how to either solve this quick and dirty, or troubleshoot further?



Update: I tested the setup with module-null-source on the Raspberry (RTP sender) side - this works
without problems. I think this is some weird clocking issue, maybe exposed by the combination of
Raspberry + ancient usb Soundblaster sound card.

tsched on or off does not make any difference, also the system time is set by ntp and looks fine...





some information from the two devices:


#### Raspberry RTP sender BEGIN INFO ####
pi@raspberrypi:~ $ pulseaudio --version
pulseaudio 14.2
pi@raspberrypi:~ $ pacmd dump
### Configuration dump generated at Fri Jun 17 21:49:17 2022

load-module module-udev-detect
load-module module-alsa-card device_id="1" name="usb-041e_USB_Audio-00"
card_name="alsa_card.usb-041e_USB_Audio-00" namereg_fail=false tsched=yes fixed_latency_range=no
ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no
card_properties="module-udev-detect.discovered=1"
load-module module-native-protocol-unix
load-module module-systemd-login
load-module module-rtp-send source=alsa_input.usb-041e_USB_Audio-00.iec958-stereo
destination_ip=192.168.2.15
load-module module-rtp-recv sap_address=192.168.2.30
load-module module-cli-protocol-unix

set-sink-volume alsa_output.usb-041e_USB_Audio-00.iec958-stereo 0x10000
set-sink-mute alsa_output.usb-041e_USB_Audio-00.iec958-stereo no
suspend-sink alsa_output.usb-041e_USB_Audio-00.iec958-stereo no

set-source-volume alsa_output.usb-041e_USB_Audio-00.iec958-stereo.monitor 0x10000
set-source-mute alsa_output.usb-041e_USB_Audio-00.iec958-stereo.monitor no
suspend-source alsa_output.usb-041e_USB_Audio-00.iec958-stereo.monitor no
set-source-volume alsa_input.usb-041e_USB_Audio-00.iec958-stereo 0x10000
set-source-mute alsa_input.usb-041e_USB_Audio-00.iec958-stereo no
suspend-source alsa_input.usb-041e_USB_Audio-00.iec958-stereo no

set-card-profile alsa_card.usb-041e_USB_Audio-00 output:iec958-stereo+input:iec958-stereo

set-default-sink alsa_output.usb-041e_USB_Audio-00.iec958-stereo
set-default-source alsa_input.usb-041e_USB_Audio-00.iec958-stereo

### EOF
pi@raspberrypi:~ $

#### Raspberry RTP sender END INFO ####



#### Netbook RTP receiver BEGIN INFO ####
xxx@netbook:~$ pulseaudio --version
pulseaudio 14.2
xxx@netbook:~$ pacmd dump
### Configuration dump generated at Fri Jun 17 21:49:46 2022

load-module module-bluetooth-policy
load-module module-bluetooth-discover
load-module module-bluez5-discover
load-module module-native-protocol-unix
load-module module-systemd-login
load-module module-null-sink sink_name="NullSink" sink_properties="device.description='NullSink'"
load-module module-null-sink sink_name="NullSinkDel" sink_properties="device.description='NullSinkDel'"
load-module module-loopback latency_msec=200 adjust_time=1 source=NullSink.monitor sink=NullSinkDel
source_dont_move=yes sink_dont_move=yes
load-module module-rtp-send source=NullSink.monitor destination_ip=192.168.2.230
load-module module-rtp-send source=NullSink.monitor destination_ip=192.168.2.30
load-module module-rtp-recv sink=NullSink sap_address=192.168.2.15
load-module module-cli-protocol-unix

set-sink-volume NullSink 0x10000
set-sink-mute NullSink no
suspend-sink NullSink no
set-sink-volume NullSinkDel 0x10000
set-sink-mute NullSinkDel no
suspend-sink NullSinkDel no

set-source-volume NullSink.monitor 0x10000
set-source-mute NullSink.monitor no
suspend-source NullSink.monitor no
set-source-volume NullSinkDel.monitor 0x10000
set-source-mute NullSinkDel.monitor no
suspend-source NullSinkDel.monitor no

set-default-sink NullSink
set-default-source NullSink.monitor

### EOF
xxx@netbook:~$




##### ... some logging with log level "debug":
xxx@netbook:~$ systemctl --user restart pulseaudio;journalctl --follow
Hint: You are currently not seeing messages from other users and the system.
       Users in groups 'adm', 'systemd-journal' can see all messages.
       Pass -q to turn off this notice.
-- Journal begins at Thu 2022-06-16 13:05:00 CEST. --
Jun 17 21:50:29 netbook pulseaudio[16443]: Bluetooth Headset Backend API support using the native
backend
Jun 17 21:50:29 netbook pulseaudio[16443]: Registering Profile /Profile/HSPAGProfile
00001112-0000-1000-8000-00805f9b34fb
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Failed to register as a handsfree audio agent with ofono:
org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
Jun 17 21:50:29 netbook pulseaudio[16443]: oFono is running: no
Jun 17 21:50:29 netbook pulseaudio[16443]: Registering Profile /Profile/HSPHSProfile
00001108-0000-1000-8000-00805f9b34fb
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci1
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Properties changed in adapter /org/bluez/hci0
Jun 17 21:50:29 netbook pulseaudio[16443]: Loopback overall latency is 1809.60 ms + 200.00 ms +
-1870.11 ms = 139.39 ms
Jun 17 21:50:29 netbook pulseaudio[16443]: Loopback latency at base rate is 139.39 ms
Jun 17 21:50:29 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 43721 Hz.
Jun 17 21:50:30 netbook pulseaudio[16443]: Loopback overall latency is 808.51 ms + 201.73 ms +
-868.96 ms = 141.12 ms
Jun 17 21:50:30 netbook pulseaudio[16443]: Loopback latency at base rate is 139.39 ms
Jun 17 21:50:30 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 43721 Hz.
Jun 17 21:50:31 netbook pulseaudio[16443]: Got signal SIGUSR2.
Jun 17 21:50:31 netbook pulseaudio[16443]: Loaded "module-cli-protocol-unix" (index: #11; argument:
"").
Jun 17 21:50:31 netbook pulseaudio[16443]: Created 2 "UNIX socket client"
Jun 17 21:50:31 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:31 netbook pulseaudio[16443]: Freed 2 "UNIX socket client"
Jun 17 21:50:31 netbook pulseaudio[16443]: Adding 64911 usec of silence to queue
Jun 17 21:50:31 netbook pulseaudio[16443]: Dropping 7296 usec of audio from queue
Jun 17 21:50:31 netbook pulseaudio[16443]: Adding 66649 usec of silence to queue
Jun 17 21:50:31 netbook pulseaudio[16443]: Dropping 65483 usec of audio from queue
Jun 17 21:50:31 netbook pulseaudio[16443]: Loopback overall latency is 9.41 ms + 197.98 ms + -6.14
ms = 201.12 ms
Jun 17 21:50:31 netbook pulseaudio[16443]: Loopback latency at base rate is 199.42 ms
Jun 17 21:50:31 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44075 Hz.
Jun 17 21:50:32 netbook pulseaudio[16443]: Loopback overall latency is 22.47 ms + 180.94 ms + -3.18
ms = 200.10 ms
Jun 17 21:50:32 netbook pulseaudio[16443]: Loopback latency at base rate is 200.00 ms
Jun 17 21:50:32 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44099 Hz.
Jun 17 21:50:33 netbook pulseaudio[16443]: Negotiated format: pcm, format.sample_format =
"\"s16be\""  format.rate = "44100"  format.channels = "2"
Jun 17 21:50:33 netbook pulseaudio[16443]: Resampler:
Jun 17 21:50:33 netbook pulseaudio[16443]:   rate 44100 -> 44100 (method speex-float-1)
Jun 17 21:50:33 netbook pulseaudio[16443]:   format s16be -> s16le (intermediate float32le)
Jun 17 21:50:33 netbook pulseaudio[16443]:   channels 2 -> 2 (resampling 2)
Jun 17 21:50:33 netbook pulseaudio[16443]: Choosing speex quality setting 1.
Jun 17 21:50:33 netbook pulseaudio[16443]: memblockq requested: maxlength=33554432, tlength=0,
base=4, prebuf=0, minreq=1 maxrewind=0
Jun 17 21:50:33 netbook pulseaudio[16443]: memblockq sanitized: maxlength=33554432,
tlength=33554432, base=4, prebuf=0, minreq=4 maxrewind=0
Jun 17 21:50:33 netbook pulseaudio[16443]: Created input 1 "RTP Stream (PulseAudio RTP Stream on
raspberrypi)" on NullSink with sample spec s16be 2ch 44100Hz and channel map front-left,front-right
Jun 17 21:50:33 netbook pulseaudio[16443]:     media.role = "stream"
Jun 17 21:50:33 netbook pulseaudio[16443]:     media.name = "RTP Stream (PulseAudio RTP Stream on
raspberrypi)"
Jun 17 21:50:33 netbook pulseaudio[16443]:     rtp.session = "PulseAudio RTP Stream on raspberrypi"
Jun 17 21:50:33 netbook pulseaudio[16443]:     rtp.origin = "pi 3864408555 0 IN IP4 192.168.2.30"
Jun 17 21:50:33 netbook pulseaudio[16443]:     rtp.payload = "10"
Jun 17 21:50:33 netbook pulseaudio[16443]: memblockq requested: maxlength=41943040,
tlength=41943040, base=4, prebuf=44100, minreq=0 maxrewind=0
Jun 17 21:50:33 netbook pulseaudio[16443]: memblockq sanitized: maxlength=41943040,
tlength=41943040, base=4, prebuf=44100, minreq=4 maxrewind=0
Jun 17 21:50:33 netbook pulseaudio[16443]: Initialising native RTP backend for receive
Jun 17 21:50:33 netbook pulseaudio[16443]: NullSink: state: IDLE -> RUNNING
Jun 17 21:50:33 netbook pulseaudio[16443]: New session 'PulseAudio RTP Stream on raspberrypi'
Jun 17 21:50:33 netbook pulseaudio[16443]: Loopback overall latency is 34.92 ms + 166.38 ms + -1.16
ms = 200.02 ms
Jun 17 21:50:33 netbook pulseaudio[16443]: Loopback latency at base rate is 200.02 ms
Jun 17 21:50:33 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44100 Hz.
Jun 17 21:50:34 netbook pulseaudio[16443]: Requesting rewind due to end of underrun
Jun 17 21:50:34 netbook pulseaudio[16443]: Requested to rewind 1276 bytes.
Jun 17 21:50:34 netbook pulseaudio[16443]: Processing rewind...
Jun 17 21:50:34 netbook pulseaudio[16443]: Have to rewind 844 bytes on render memblockq.
Jun 17 21:50:34 netbook pulseaudio[16443]: Processing rewind...
Jun 17 21:50:34 netbook pulseaudio[16443]: Have to rewind 844 bytes on implementor.
Jun 17 21:50:34 netbook pulseaudio[16443]: Rewound 844 bytes.
Jun 17 21:50:34 netbook pulseaudio[16443]: Created 3 "Native client (UNIX socket client)"
Jun 17 21:50:34 netbook pulseaudio[16443]: Protocol version: remote 34, local 34
Jun 17 21:50:34 netbook pulseaudio[16443]: Got credentials: uid=1000 gid=1000 success=1
Jun 17 21:50:34 netbook pulseaudio[16443]: SHM possible: yes
Jun 17 21:50:34 netbook pulseaudio[16443]: Negotiated SHM: yes
Jun 17 21:50:34 netbook pulseaudio[16443]: Memfd possible: yes
Jun 17 21:50:34 netbook pulseaudio[16443]: Negotiated SHM type: shared memfd
Jun 17 21:50:34 netbook pulseaudio[16443]: Using shared memfd memory pool with 1024 slots of size
64.0 KiB each, total size is 64.0 MiB, maximum usable slot size is 65496
Jun 17 21:50:34 netbook pulseaudio[16443]: SHM block is 65496 bytes, ringbuffer capacity is 2 *
32724 bytes
Jun 17 21:50:34 netbook pulseaudio[16443]: Enabling srbchannel...
Jun 17 21:50:34 netbook pulseaudio[16443]: Client enabled srbchannel.
Jun 17 21:50:34 netbook pulseaudio[16443]: Loopback overall latency is 16.89 ms + 186.78 ms + -3.16
ms = 200.07 ms
Jun 17 21:50:34 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:34 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:35 netbook pulseaudio[16443]: Loopback overall latency is 17.65 ms + 185.75 ms + -3.13
ms = 200.08 ms
Jun 17 21:50:35 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:50:35 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:36 netbook pulseaudio[16443]: Created 4 "UNIX socket client"
Jun 17 21:50:36 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:36 netbook pulseaudio[16443]: Freed 4 "UNIX socket client"
Jun 17 21:50:36 netbook pulseaudio[16443]: Loopback overall latency is 11.43 ms + 194.07 ms + -5.25
ms = 200.08 ms
Jun 17 21:50:36 netbook pulseaudio[16443]: Loopback latency at base rate is 200.10 ms
Jun 17 21:50:36 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44104 Hz.
Jun 17 21:50:37 netbook pulseaudio[16443]: Loopback overall latency is 53.79 ms + 152.23 ms + -5.77
ms = 200.03 ms
Jun 17 21:50:37 netbook pulseaudio[16443]: Loopback latency at base rate is 200.05 ms
Jun 17 21:50:37 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:38 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:50:38 netbook pulseaudio[16443]: wi=5449433 ri=4810884
Jun 17 21:50:38 netbook pulseaudio[16443]: Write index deviates by 675.86 ms, expected 500.00 ms
Jun 17 21:50:38 netbook pulseaudio[16443]: Estimated target rate: 45708 Hz, using average of 44132
Hz  (α=0.020)
Jun 17 21:50:38 netbook pulseaudio[16443]: New rate of 44520 Hz not within 2‰ of 44100 Hz, forcing
smaller adjustment
Jun 17 21:50:38 netbook pulseaudio[16443]: Updated sampling rate to 44188 Hz.
Jun 17 21:50:38 netbook pulseaudio[16443]: Loopback overall latency is 42.72 ms + 162.49 ms + -4.97
ms = 200.05 ms
Jun 17 21:50:38 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:50:38 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:40 netbook pulseaudio[16443]: Loopback overall latency is 84.10 ms + 127.52 ms + -1.09
ms = 200.07 ms
Jun 17 21:50:40 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:40 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:40 netbook pulseaudio[16443]: Loopback overall latency is 7.98 ms + 195.27 ms + -2.82
ms = 200.06 ms
Jun 17 21:50:40 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:40 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:41 netbook pulseaudio[16443]: Created 5 "UNIX socket client"
Jun 17 21:50:41 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:41 netbook pulseaudio[16443]: Freed 5 "UNIX socket client"
Jun 17 21:50:42 netbook pulseaudio[16443]: Loopback overall latency is 113.44 ms + 92.47 ms + -5.71
ms = 200.05 ms
Jun 17 21:50:42 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:50:42 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:42 netbook pulseaudio[16443]: Loopback overall latency is 36.06 ms + 170.92 ms + -6.71
ms = 200.07 ms
Jun 17 21:50:42 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:42 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:43 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:50:43 netbook pulseaudio[16443]: wi=10869919 ri=9971938
Jun 17 21:50:43 netbook pulseaudio[16443]: Write index deviates by 1103.29 ms, expected 500.00 ms
Jun 17 21:50:43 netbook pulseaudio[16443]: Estimated target rate: 48319 Hz, using average of 47481
Hz  (α=0.800)
Jun 17 21:50:43 netbook pulseaudio[16443]: New rate of 48913 Hz not within 2‰ of 44188 Hz, forcing
smaller adjustment
Jun 17 21:50:43 netbook pulseaudio[16443]: Updated sampling rate to 44276 Hz.
Jun 17 21:50:44 netbook pulseaudio[16443]: Loopback overall latency is 27.73 ms + 179.24 ms + -6.69
ms = 200.06 ms
Jun 17 21:50:44 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:44 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:45 netbook pulseaudio[16443]: Loopback overall latency is 67.12 ms + 137.04 ms + -3.94
ms = 200.07 ms
Jun 17 21:50:45 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:50:45 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:46 netbook pulseaudio[16443]: Loopback overall latency is 52.23 ms + 154.50 ms + -6.38
ms = 200.06 ms
Jun 17 21:50:46 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:46 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:46 netbook pulseaudio[16443]: Created 6 "UNIX socket client"
Jun 17 21:50:46 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:46 netbook pulseaudio[16443]: Freed 6 "UNIX socket client"
Jun 17 21:50:47 netbook pulseaudio[16443]: Loopback overall latency is 91.12 ms + 114.17 ms + -5.09
ms = 200.07 ms
Jun 17 21:50:47 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:50:47 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:48 netbook pulseaudio[16443]: Loopback overall latency is 13.57 ms + 187.67 ms + -0.99
ms = 200.05 ms
Jun 17 21:50:48 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:50:48 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:48 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:50:48 netbook pulseaudio[16443]: wi=16276086 ri=15112476
Jun 17 21:50:48 netbook pulseaudio[16443]: Write index deviates by 1517.74 ms, expected 500.00 ms
Jun 17 21:50:48 netbook pulseaudio[16443]: Estimated target rate: 48278 Hz, using average of 48118
Hz  (α=0.800)
Jun 17 21:50:48 netbook pulseaudio[16443]: New rate of 50567 Hz not within 2‰ of 44276 Hz, forcing
smaller adjustment
Jun 17 21:50:48 netbook pulseaudio[16443]: Updated sampling rate to 44364 Hz.
Jun 17 21:50:49 netbook pulseaudio[16443]: Loopback overall latency is 112.12 ms + 92.47 ms + -4.10
ms = 200.07 ms
Jun 17 21:50:49 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:49 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:49 netbook pulseaudio[16443]: Checking for dead streams ...
Jun 17 21:50:50 netbook pulseaudio[16443]: Loopback overall latency is 36.12 ms + 170.17 ms + -5.68
ms = 200.07 ms
Jun 17 21:50:50 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:50:50 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:51 netbook pulseaudio[16443]: Loopback overall latency is 23.89 ms + 178.51 ms + -1.99
ms = 200.06 ms
Jun 17 21:50:51 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:51 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:51 netbook pulseaudio[16443]: Created 7 "UNIX socket client"
Jun 17 21:50:51 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:51 netbook pulseaudio[16443]: Freed 7 "UNIX socket client"
Jun 17 21:50:52 netbook pulseaudio[16443]: Loopback overall latency is 60.66 ms + 143.91 ms + -4.37
ms = 200.03 ms
Jun 17 21:50:52 netbook pulseaudio[16443]: Loopback latency at base rate is 200.04 ms
Jun 17 21:50:52 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44101 Hz.
Jun 17 21:50:53 netbook pulseaudio[16443]: Loopback overall latency is 43.40 ms + 161.38 ms + -4.42
ms = 200.07 ms
Jun 17 21:50:53 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:53 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:53 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:50:53 netbook pulseaudio[16443]: wi=21653593 ri=19864755
Jun 17 21:50:53 netbook pulseaudio[16443]: Write index deviates by 1930.43 ms, expected 500.00 ms
Jun 17 21:50:53 netbook pulseaudio[16443]: Estimated target rate: 48355 Hz, using average of 48308
Hz  (α=0.800)
Jun 17 21:50:53 netbook pulseaudio[16443]: New rate of 51762 Hz not within 2‰ of 44364 Hz, forcing
smaller adjustment
Jun 17 21:50:53 netbook pulseaudio[16443]: Updated sampling rate to 44452 Hz.
Jun 17 21:50:54 netbook pulseaudio[16443]: Loopback overall latency is 79.90 ms + 126.77 ms + 19.11
ms = 200.06 ms
Jun 17 21:50:54 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:50:54 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:55 netbook pulseaudio[16443]: Loopback overall latency is 60.98 ms + 141.99 ms + -2.55
ms = 200.06 ms
Jun 17 21:50:55 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:55 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:56 netbook pulseaudio[16443]: Loopback overall latency is 99.91 ms + 106.93 ms + -6.17
ms = 200.06 ms
Jun 17 21:50:56 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:56 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:57 netbook pulseaudio[16443]: Loopback overall latency is 14.16 ms + 191.51 ms + -5.25
ms = 200.07 ms
Jun 17 21:50:57 netbook pulseaudio[16443]: Loopback latency at base rate is 200.09 ms
Jun 17 21:50:57 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:50:57 netbook pulseaudio[16443]: Created 8 "UNIX socket client"
Jun 17 21:50:57 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:50:57 netbook pulseaudio[16443]: Freed 8 "UNIX socket client"
Jun 17 21:50:58 netbook pulseaudio[16443]: Loopback overall latency is 110.92 ms + 92.47 ms + -3.02
ms = 200.04 ms
Jun 17 21:50:58 netbook pulseaudio[16443]: Loopback latency at base rate is 200.05 ms
Jun 17 21:50:58 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:50:58 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:50:58 netbook pulseaudio[16443]: wi=27017007 ri=24965355
Jun 17 21:50:58 netbook pulseaudio[16443]: Write index deviates by 2329.21 ms, expected 500.00 ms
Jun 17 21:50:58 netbook pulseaudio[16443]: Estimated target rate: 48305 Hz, using average of 48305
Hz  (α=0.766)
Jun 17 21:50:58 netbook pulseaudio[16443]: New rate of 52723 Hz not within 2‰ of 44452 Hz, forcing
smaller adjustment
Jun 17 21:50:58 netbook pulseaudio[16443]: Updated sampling rate to 44540 Hz.
Jun 17 21:50:59 netbook pulseaudio[16443]: Loopback overall latency is 34.18 ms + 172.49 ms + -6.24
ms = 200.06 ms
Jun 17 21:50:59 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:50:59 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:00 netbook pulseaudio[16443]: Loopback overall latency is 14.60 ms + 189.56 ms + -3.72
ms = 200.08 ms
Jun 17 21:51:00 netbook pulseaudio[16443]: Loopback latency at base rate is 200.09 ms
Jun 17 21:51:00 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:01 netbook pulseaudio[16443]: Loopback overall latency is 45.65 ms + 154.96 ms + -0.27
ms = 200.07 ms
Jun 17 21:51:01 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:51:01 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:02 netbook pulseaudio[16443]: Loopback overall latency is 29.38 ms + 177.79 ms + -6.01
ms = 200.06 ms
Jun 17 21:51:02 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:02 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:02 netbook pulseaudio[16443]: Created 9 "UNIX socket client"
Jun 17 21:51:02 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:51:02 netbook pulseaudio[16443]: Freed 9 "UNIX socket client"
Jun 17 21:51:03 netbook pulseaudio[16443]: Loopback overall latency is 60.80 ms + 143.21 ms + -3.67
ms = 200.06 ms
Jun 17 21:51:03 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:03 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:03 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:51:03 netbook pulseaudio[16443]: wi=32359227 ri=29679389
Jun 17 21:51:03 netbook pulseaudio[16443]: Write index deviates by 2716.14 ms, expected 500.00 ms
Jun 17 21:51:03 netbook pulseaudio[16443]: Estimated target rate: 48276 Hz, using average of 48305
Hz  (α=0.020)
Jun 17 21:51:03 netbook pulseaudio[16443]: New rate of 53657 Hz not within 2‰ of 44540 Hz, forcing
smaller adjustment
Jun 17 21:51:03 netbook pulseaudio[16443]: Updated sampling rate to 44629 Hz.
Jun 17 21:51:04 netbook pulseaudio[16443]: Loopback overall latency is 40.84 ms + 160.65 ms + -1.13
ms = 200.07 ms
Jun 17 21:51:04 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:51:04 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:05 netbook pulseaudio[16443]: Loopback overall latency is 71.02 ms + 125.66 ms + 24.74
ms = 200.06 ms
Jun 17 21:51:05 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:05 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:06 netbook pulseaudio[16443]: Loopback overall latency is 52.80 ms + 148.52 ms + -0.89
ms = 200.07 ms
Jun 17 21:51:06 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:51:06 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:07 netbook pulseaudio[16443]: Loopback overall latency is 81.70 ms + 121.15 ms + -2.26
ms = 200.06 ms
Jun 17 21:51:07 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:51:07 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:07 netbook pulseaudio[16443]: Created 10 "UNIX socket client"
Jun 17 21:51:07 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:51:07 netbook pulseaudio[16443]: Freed 10 "UNIX socket client"
Jun 17 21:51:08 netbook pulseaudio[16443]: Loopback overall latency is 59.26 ms + 145.80 ms + -4.70
ms = 200.07 ms
Jun 17 21:51:08 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:08 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:08 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:51:08 netbook pulseaudio[16443]: wi=37672365 ri=34739743
Jun 17 21:51:08 netbook pulseaudio[16443]: Write index deviates by 3087.23 ms, expected 500.00 ms
Jun 17 21:51:08 netbook pulseaudio[16443]: Estimated target rate: 48207 Hz, using average of 48231
Hz  (α=0.754)
Jun 17 21:51:08 netbook pulseaudio[16443]: New rate of 54470 Hz not within 2‰ of 44629 Hz, forcing
smaller adjustment
Jun 17 21:51:08 netbook pulseaudio[16443]: Updated sampling rate to 44718 Hz.
Jun 17 21:51:09 netbook pulseaudio[16443]: Loopback overall latency is 89.25 ms + 118.43 ms + -7.31
ms = 200.05 ms
Jun 17 21:51:09 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:51:09 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:09 netbook pulseaudio[16443]: Checking for dead streams ...
Jun 17 21:51:10 netbook pulseaudio[16443]: Loopback overall latency is 3.94 ms + 200.35 ms + -4.00
ms = 200.06 ms
Jun 17 21:51:10 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:10 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:11 netbook pulseaudio[16443]: Loopback overall latency is 97.22 ms + 106.93 ms + -3.73
ms = 200.05 ms
Jun 17 21:51:11 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:51:11 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:12 netbook pulseaudio[16443]: Loopback overall latency is 5.98 ms + 197.63 ms + -3.16
ms = 200.06 ms
Jun 17 21:51:12 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:12 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:12 netbook pulseaudio[16443]: Created 11 "UNIX socket client"
Jun 17 21:51:12 netbook pulseaudio[16443]: CLI got EOF from user.
Jun 17 21:51:12 netbook pulseaudio[16443]: Freed 11 "UNIX socket client"
Jun 17 21:51:13 netbook pulseaudio[16443]: Loopback overall latency is 100.24 ms + 106.93 ms + -6.56
ms = 200.05 ms
Jun 17 21:51:13 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:51:13 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:13 netbook pulseaudio[16443]: Updating sample rate
Jun 17 21:51:13 netbook pulseaudio[16443]: wi=42964354 ri=39779954
Jun 17 21:51:13 netbook pulseaudio[16443]: Write index deviates by 3443.80 ms, expected 500.00 ms
Jun 17 21:51:13 netbook pulseaudio[16443]: Estimated target rate: 48152 Hz, using average of 48170
Hz  (α=0.767)
Jun 17 21:51:13 netbook pulseaudio[16443]: Sample rates too different, not adjusting (44100 vs. 55260).
Jun 17 21:51:13 netbook pulseaudio[16443]: Updated sampling rate to 44100 Hz.
Jun 17 21:51:14 netbook pulseaudio[16443]: Loopback overall latency is 14.48 ms + 193.12 ms + -6.78
ms = 200.06 ms
Jun 17 21:51:14 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:14 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:15 netbook pulseaudio[16443]: Loopback overall latency is 110.20 ms + 92.47 ms + -2.32
ms = 200.05 ms
Jun 17 21:51:15 netbook pulseaudio[16443]: Loopback latency at base rate is 200.06 ms
Jun 17 21:51:15 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44102 Hz.
Jun 17 21:51:16 netbook pulseaudio[16443]: Loopback overall latency is 40.60 ms + 164.05 ms + -4.18
ms = 200.07 ms
Jun 17 21:51:16 netbook pulseaudio[16443]: Loopback latency at base rate is 200.08 ms
Jun 17 21:51:16 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
Jun 17 21:51:17 netbook pulseaudio[16443]: Loopback overall latency is 33.51 ms + 172.37 ms + -5.57
ms = 200.06 ms
Jun 17 21:51:17 netbook pulseaudio[16443]: Loopback latency at base rate is 200.07 ms
Jun 17 21:51:17 netbook pulseaudio[16443]: [NullSinkDel] Updated sampling rate to 44103 Hz.
^C
xxx@netbook:~$





#### Netbook RTP receiver END INFO ####









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