Make sure everything runs smoothly when JACK is set to 44.1 KHz
Configure JACK at 192 KHz
Run jack_simple_client -> test tone audible
Set soxr_resample_quality = "quick" and start shairport_sync
Play Apple Music on iPhone
No music, multiple sync errors instead
Notes:
Also tried all soxr_resample_quality values with same result
Tried different values (and no value / default) for audio_backend_buffer_desired_length_in_seconds and resync_threshold_in_seconds (had them tuned for the working 44k1 setup).
$ mpstat
Linux 6.1.77-v8-16k+ (raspberrypi) 10/29/2024 _aarch64_ (4 CPU)
09:18:30 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %gnice %idle
09:18:30 AM all 7.19 0.00 24.28 0.22 0.00 0.25 0.00 0.00 0.00 68.07
$ shairport-sync --verbose
0.001137408 "shairport.c:2278" Startup in AirPlay 2 mode, with features 0x405c4a00,0x1c340 on device "2c:cf:67:34:66:42".
0.000060241 "shairport.c:2317" Version String: "4.3.4-1-g910264e5-AirPlay2-smi10-alac-OpenSSL-Avahi-ALSA-jack-soxr-sysconfdir:/etc"
0.000006555 "shairport.c:2336" Command Line: "shairport-sync --verbose".
0.000131537 "shairport.c:2372" Log Verbosity is 1.
0.000067000 "audio_jack.c:209" SOXR quality quick
0.031668185 "shairport.c:2440" disable_resend_requests is off.
0.000043871 "shairport.c:2441" diagnostic_drop_packet_fraction is 0.000000. A value of 0.0 means no packets will be dropped deliberately.
0.000013666 "shairport.c:2445" statistics_requester status is 0.
0.000003871 "shairport.c:2450" rtsp listening port is 7000.
0.000002907 "shairport.c:2451" udp base port is 6001.
0.000003130 "shairport.c:2452" udp port range is 10.
0.000002870 "shairport.c:2453" player name is "Luc Soundsystem".
0.000003259 "shairport.c:2454" backend is "jack".
0.000003149 "shairport.c:2455" run_this_before_play_begins action is "(null)".
0.000003444 "shairport.c:2456" run_this_after_play_ends action is "(null)".
0.000003593 "shairport.c:2457" wait-cmd status is 0.
0.000002944 "shairport.c:2458" run_this_before_play_begins may return output is 0.
0.000003074 "shairport.c:2459" run_this_if_an_unfixable_error_is_detected action is "(null)".
0.000003593 "shairport.c:2461" run_this_before_entering_active_state action is "(null)".
0.000002796 "shairport.c:2463" run_this_after_exiting_active_state action is "(null)".
0.000002982 "shairport.c:2465" active_state_timeout is 10.000000 seconds.
0.000005018 "shairport.c:2466" mdns backend "(null)".
0.000003056 "shairport.c:2468" interpolation setting is "auto".
0.000002981 "shairport.c:2472" interpolation soxr_delay_threshold is 30000000.
0.000002815 "shairport.c:2473" resync time is 0.010000 seconds.
0.000003055 "shairport.c:2474" resync recovery time is 0.100000 seconds.
0.000003260 "shairport.c:2475" allow a session to be interrupted: 0.
0.000002796 "shairport.c:2476" busy timeout time is 120.
0.000002741 "shairport.c:2477" drift tolerance is 0.002000 seconds.
0.000003129 "shairport.c:2478" password is not set.
0.000002630 "shairport.c:2479" default airplay volume is: -24.000000.
0.000003278 "shairport.c:2480" high threshold airplay volume is: -16.000000.
0.000003463 "shairport.c:2482" check for higher-than-threshold volume for new play session is disabled.
0.000003111 "shairport.c:2488" ignore_volume_control is 1.
0.000002963 "shairport.c:2492" volume_max_db is not set
0.000002648 "shairport.c:2493" volume range in dB (zero means use the range specified by the mixer): 0.
0.000003444 "shairport.c:2495" volume_range_combined_hardware_priority (1 means hardware mixer attenuation is used first) is 0.
0.000003482 "shairport.c:2499" playback_mode is 0 (0-stereo, 1-mono, 1-reverse_stereo, 2-both_left, 3-both_right).
0.000003685 "shairport.c:2501" disable_synchronization is 0.
0.000002796 "shairport.c:2502" use_mmap_if_available is 1.
0.000002778 "shairport.c:2503" output_format automatic selection is enabled.
0.000002926 "shairport.c:2507" output_rate automatic selection is enabled.
0.000003111 "shairport.c:2511" audio backend desired buffer length is 0.050000 seconds.
0.000003593 "shairport.c:2513" audio_backend_buffer_interpolation_threshold_in_seconds is 0.250000 seconds.
0.000003500 "shairport.c:2515" audio backend latency offset is 0.000000 seconds.
0.000003389 "shairport.c:2517" audio backend silence lead-in time is "auto".
0.000002685 "shairport.c:2521" zeroconf regtype is "_raop._tcp".
0.000002981 "shairport.c:2522" decoders_supported field is 3.
0.000002834 "shairport.c:2523" use_apple_decoder is 1.
0.000002092 "shairport.c:2524" alsa_use_hardware_mute is 0.
0.000002704 "shairport.c:2528" no special mdns service interface was requested.
0.000018759 "shairport.c:2531" configuration file name "/etc/shairport-sync.conf" resolves to "/etc/shairport-sync.conf".
0.000003815 "shairport.c:2561" loudness is 0.
0.000005667 "shairport.c:2562" loudness reference level is -20.000000
0.000691833 "shairport.c:2689" NQPTP is online.
0.000628352 "audio_jack.c:173" Average maximum JACK latency across all ports: 0
0.000980648 "audio_jack.c:173" Average maximum JACK latency across all ports: 0
1.498147221 "shairport.c:255" "soxr" interpolation has been chosen.
4.616326479 "rtsp.c:2896" Connection 1: AP2 PTP connection from 2a02:2455:856e:7500:71fd:4b58:1561:2c75:62798 ("iPhone von Luciano") to self at 2a02:2455:856e:7500::fc39:7000.
0.637322537 "rtsp.c:3253" Connection 1: SETUP AP2 no Active-Remote information the SETUP Record.
0.000038685 "rtsp.c:3272" Connection 1: SETUP AP2 doesn't include DACP-ID string information.
0.423285426 "rtp.c:2490" Flush completed while play_enabled is true.
0.797727370 "player.c:2903" Large negative (i.e. early) sync error of -1069 frames (-0.024240 seconds), at frame: 1394452527.
0.080969888 "player.c:2878" Large positive (i.e. late) sync error of 5481 frames (0.124286 seconds), at frame: 1394457103.
0.342527111 "player.c:2903" Large negative (i.e. early) sync error of -1050 frames (-0.023810 seconds), at frame: 1394471183.
0.080981130 "player.c:2878" Large positive (i.e. late) sync error of 5420 frames (0.122902 seconds), at frame: 1394475759.
0.362421074 "player.c:2903" Large negative (i.e. early) sync error of -854 frames (-0.019365 seconds), at frame: 1394490543.
0.080947259 "player.c:2878" Large positive (i.e. late) sync error of 4759 frames (0.107914 seconds), at frame: 1394495119.
0.342375315 "player.c:2903" Large negative (i.e. early) sync error of -843 frames (-0.019116 seconds), at frame: 1394509199.
0.141553148 "player.c:2878" Large positive (i.e. late) sync error of 4013 frames (0.090998 seconds), at frame: 1394516239.
0.322116407 "player.c:2903" Large negative (i.e. early) sync error of -811 frames (-0.018390 seconds), at frame: 1394529615.
0.141401203 "player.c:2878" Large positive (i.e. late) sync error of 3961 frames (0.089819 seconds), at frame: 1394536655.
0.270179445 "player.c:2878" Large positive (i.e. late) sync error of 3204 frames (0.072653 seconds), at frame: 1394548975.
0.314145833 "player.c:2903" Large negative (i.e. early) sync error of -838 frames (-0.019002 seconds), at frame: 1394561647.
0.081008685 "player.c:2878" Large positive (i.e. late) sync error of 4708 frames (0.106757 seconds), at frame: 1394566223.
0.322123092 "player.c:2903" Large negative (i.e. early) sync error of -1013 frames (-0.022971 seconds), at frame: 1394579599.
0.080988723 "player.c:2878" Large positive (i.e. late) sync error of 5233 frames (0.118662 seconds), at frame: 1394584175.
0.362462796 "player.c:2903" Large negative (i.e. early) sync error of -816 frames (-0.018503 seconds), at frame: 1394598959.
0.080871926 "player.c:2878" Large positive (i.e. late) sync error of 4629 frames (0.104966 seconds), at frame: 1394603535.
0.310784536 "player.c:2878" Large positive (i.e. late) sync error of 2339 frames (0.053039 seconds), at frame: 1394617615.
0.261996945 "player.c:2903" Large negative (i.e. early) sync error of -1560 frames (-0.035374 seconds), at frame: 1394628527.
0.113189833 "player.c:2878" Large positive (i.e. late) sync error of 5257 frames (0.119206 seconds), at frame: 1394633103.
0.351506833 "player.c:2903" Large negative (i.e. early) sync error of -1484 frames (-0.033651 seconds), at frame: 1394648943.
0.093019667 "player.c:2878" Large positive (i.e. late) sync error of 5651 frames (0.128141 seconds), at frame: 1394653519.
0.463876296 "player.c:2903" Large negative (i.e. early) sync error of -860 frames (-0.019501 seconds), at frame: 1394672879.
0.081085518 "player.c:2878" Large positive (i.e. late) sync error of 4781 frames (0.108413 seconds), at frame: 1394677455.
0.330532778 "player.c:2903" Large negative (i.e. early) sync error of -1366 frames (-0.030975 seconds), at frame: 1394691535.
0.101002074 "player.c:2878" Large positive (i.e. late) sync error of 1755 frames (0.039796 seconds), at frame: 1394696111.
0.233837444 "player.c:2878" Large positive (i.e. late) sync error of 616 frames (0.013968 seconds), at frame: 1394706319.
0.189858037 "player.c:2878" Large positive (i.e. late) sync error of 2222 frames (0.050385 seconds), at frame: 1394715471.
0.274161037 "player.c:2903" Large negative (i.e. early) sync error of -983 frames (-0.022290 seconds), at frame: 1394726383.
0.080937444 "player.c:2878" Large positive (i.e. late) sync error of 5186 frames (0.117596 seconds), at frame: 1394730959.
0.330517870 "player.c:2878" Large positive (i.e. late) sync error of 2332 frames (0.052880 seconds), at frame: 1394745743.
0.273923797 "player.c:2903" Large negative (i.e. early) sync error of -1032 frames (-0.023401 seconds), at frame: 1394756655.
0.081006722 "player.c:2878" Large positive (i.e. late) sync error of 5355 frames (0.121429 seconds), at frame: 1394761231.
0.362650518 "player.c:2903" Large negative (i.e. early) sync error of -829 frames (-0.018798 seconds), at frame: 1394776015.
0.080836463 "player.c:2878" Large positive (i.e. late) sync error of 4670 frames (0.105896 seconds), at frame: 1394780591.
0.322953926 "player.c:2903" Large negative (i.e. early) sync error of -972 frames (-0.022041 seconds), at frame: 1394793967.
0.080887277 "player.c:2878" Large positive (i.e. late) sync error of 5212 frames (0.118186 seconds), at frame: 1394798543.
0.362846982 "player.c:2903" Large negative (i.e. early) sync error of -1116 frames (-0.025306 seconds), at frame: 1394813679.
0.080905240 "player.c:2878" Large positive (i.e. late) sync error of 5633 frames (0.127732 seconds), at frame: 1394818255.
0.362657908 "player.c:2903" Large negative (i.e. early) sync error of -915 frames (-0.020748 seconds), at frame: 1394833039.
0.080751814 "player.c:2878" Large positive (i.e. late) sync error of 4951 frames (0.112268 seconds), at frame: 1394837615.
0.310123833 "player.c:2903" Large negative (i.e. early) sync error of -1629 frames (-0.036939 seconds), at frame: 1394850991.
0.112942889 "player.c:2878" Large positive (i.e. late) sync error of 6032 frames (0.136780 seconds), at frame: 1394855567.
0.362979185 "player.c:2903" Large negative (i.e. early) sync error of -1058 frames (-0.023991 seconds), at frame: 1394871407.
0.081278352 "player.c:2878" Large positive (i.e. late) sync error of 5389 frames (0.122200 seconds), at frame: 1394875983.
0.362821778 "player.c:2903" Large negative (i.e. early) sync error of -835 frames (-0.018934 seconds), at frame: 1394890767.
0.080952314 "player.c:2878" Large positive (i.e. late) sync error of 4694 frames (0.106440 seconds), at frame: 1394895343.
0.431471241 "player.c:2903" Large negative (i.e. early) sync error of -1470 frames (-0.033333 seconds), at frame: 1394913999.
0.113032648 "player.c:2903" Large negative (i.e. early) sync error of -1062 frames (-0.024082 seconds), at frame: 1394918575.
0.089110537 "player.c:2878" Large positive (i.e. late) sync error of 7894 frames (0.179002 seconds), at frame: 1394923151.
0.362556407 "player.c:2878" Large positive (i.e. late) sync error of 2530 frames (0.057370 seconds), at frame: 1394939343.
0.253669167 "player.c:2878" Large positive (i.e. late) sync error of 2668 frames (0.060499 seconds), at frame: 1394950255.
0.282345129 "player.c:2903" Large negative (i.e. early) sync error of -804 frames (-0.018231 seconds), at frame: 1394961871.
0.080835963 "player.c:2878" Large positive (i.e. late) sync error of 4583 frames (0.103923 seconds), at frame: 1394966447.
0.310830241 "player.c:2878" Large positive (i.e. late) sync error of 1572 frames (0.035646 seconds), at frame: 1394980527.
0.233830777 "player.c:2878" Large positive (i.e. late) sync error of 2579 frames (0.058481 seconds), at frame: 1394990383.
0.282110963 "player.c:2903" Large negative (i.e. early) sync error of -904 frames (-0.020499 seconds), at frame: 1395001999.
0.080725074 "player.c:2878" Large positive (i.e. late) sync error of 4913 frames (0.111406 seconds), at frame: 1395006575.
0.302077685 "player.c:2878" Large positive (i.e. late) sync error of 3099 frames (0.070272 seconds), at frame: 1395019951.
0.290369204 "player.c:2878" Large positive (i.e. late) sync error of 2317 frames (0.052540 seconds), at frame: 1395032975.
0.274066407 "player.c:2903" Large negative (i.e. early) sync error of -1020 frames (-0.023129 seconds), at frame: 1395043887.
0.081077241 "player.c:2878" Large positive (i.e. late) sync error of 5316 frames (0.120544 seconds), at frame: 1395048463.
0.331058722 "player.c:2878" Large positive (i.e. late) sync error of 3805 frames (0.086281 seconds), at frame: 1395063247.
0.303367648 "player.c:2878" Large positive (i.e. late) sync error of 3456 frames (0.078367 seconds), at frame: 1395076623.
0.423779684 "player.c:2903" Large negative (i.e. early) sync error of -1466 frames (-0.033243 seconds), at frame: 1395094575.
0.093197611 "player.c:2878" Large positive (i.e. late) sync error of 5524 frames (0.125261 seconds), at frame: 1395099151.
0.342409111 "player.c:2903" Large negative (i.e. early) sync error of -912 frames (-0.020680 seconds), at frame: 1395113231.
0.080806074 "player.c:2878" Large positive (i.e. late) sync error of 4945 frames (0.112132 seconds), at frame: 1395117807.
0.322490222 "player.c:2903" Large negative (i.e. early) sync error of -1076 frames (-0.024399 seconds), at frame: 1395131183.
0.080851834 "player.c:2878" Large positive (i.e. late) sync error of 6656 frames (0.150930 seconds), at frame: 1395135759.
0.382783962 "player.c:2903" Large negative (i.e. early) sync error of -1047 frames (-0.023741 seconds), at frame: 1395151599.
0.080890852 "player.c:2878" Large positive (i.e. late) sync error of 5401 frames (0.122472 seconds), at frame: 1395156175.
0.362574741 "player.c:2903" Large negative (i.e. early) sync error of -851 frames (-0.019297 seconds), at frame: 1395170959.
0.081037092 "player.c:2878" Large positive (i.e. late) sync error of 4750 frames (0.107710 seconds), at frame: 1395175535.
0.322250278 "player.c:2903" Large negative (i.e. early) sync error of -1017 frames (-0.023061 seconds), at frame: 1395188911.
0.080843444 "player.c:2878" Large positive (i.e. late) sync error of 5299 frames (0.120159 seconds), at frame: 1395193487.
0.362216333 "player.c:2903" Large negative (i.e. early) sync error of -838 frames (-0.019002 seconds), at frame: 1395208271.
0.080913130 "player.c:2878" Large positive (i.e. late) sync error of 4701 frames (0.106599 seconds), at frame: 1395212847.
System Information.
Linux raspberrypi 6.1.77-v8-16k+ #1730 SMP PREEMPT Thu Feb 8 15:30:42 GMT 2024 aarch64 GNU/Linux
Model : Raspberry Pi 5 Model B Rev 1.0
Revision : d04170
card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC+ Pro HiFi pcm512x-hifi-0 [HiFiBerry DAC+ Pro HiFi pcm512x-hifi-0]
Configuration Information.
$ shairport-sync --displayConfig
>> Display Config Start.
From "uname -a":
Linux raspberrypi 6.1.77-v8-16k+ #1730 SMP PREEMPT Thu Feb 8 15:30:42 GMT 2024 aarch64 GNU/Linux
From /etc/os-release:
Debian GNU/Linux 12 (bookworm)
From /sys/firmware/devicetree/base/model:
Raspberry Pi 5 Model B Rev 1.0
Shairport Sync Version String:
4.3.4-1-g910264e5-AirPlay2-smi10-alac-OpenSSL-Avahi-ALSA-jack-soxr-sysconfdir:/etc
Command Line:
shairport-sync --displayConfig
Configuration File:
/etc/shairport-sync.conf
Configuration File Settings:
general :
{
name = "Luc Soundsystem";
output_backend = "jack";
audio_backend_buffer_desired_length_in_seconds = 0.05;
resync_threshold_in_seconds = 0.01;
volume_control_profile = "dasl_tapered";
ignore_volume_control = "yes";
};
pw :
{
};
jack :
{
soxr_resample_quality = "quick";
};
>> Display Config End.
>> Goodbye!
What happened?
jack_simple_client
-> test tone audiblesoxr_resample_quality = "quick"
and startshairport_sync
Notes:
soxr_resample_quality
values with same resultaudio_backend_buffer_desired_length_in_seconds
andresync_threshold_in_seconds
(had them tuned for the working 44k1 setup).Possibly related to https://github.com/mikebrady/shairport-sync/issues/1917 ?
Relevant log output
System Information.
Configuration Information.
PulseAudio or PipeWire installed?
How did you install Shairport Sync?
Built from source
Check previous issues