Hello!
I tried several games and they all got a Sound delay around 500 milliseconds.
Anyone else noticed that Problem and or knows a fix?
Kind regards! 
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Delay in what output device? The onboard speakers or a BT headset?
(Iām asking because I have a delay in my BT headset as wel on FP3)
Onboard speakers and wired headphones
You dont have this issue with other phones? Because games are interactive, you compensate for the delay. With static media like music and videos you can. Bluetooth simply is slower than your screen.
I tried it parallel on my Huawei p30 pro and there is no delay
That would be odd, you cant bend the rules of physics. I wonder what kind of trick they implement. Bluetooth has a noticeable latency. Thats why gamer headsets use WiFi.
I dont use bluetooth.
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Ah okay! In that case itās quite odd. I only have one game, Mario Run, no delay there. Can you reproduce it with that game as well?
Hi, Iām experiencing this issue too. Mario Run seems fine, but any other game I tried has a quite big sound delay.
Yep Mario runs good here too.
Iām gonna say Kawaii Kitchen (since itās one I worked on myself) and itās quite noticeable since it has a lot of button smashing.
So Iāve been tinkering al little bit trying to compare situations. Iām not any android expert or nothing alike, so bear with me because maybe what I found isnāt really relevant.
First, the difference between the Mario game and other games is that other games when they try to play a sound they try to get what android calls a ālow-latency trackā or āFast trackā (source). I donāt really know wich type of ātrackā uses the Mario game, it just seems like it isnāt a ālow-latencyā one (maybe is a ānormalā one, maybe is an even faster if it exists).
Now, the thing is, that when I compare the system dumps of the audio of a game that is suffering from audio latency in the FP5 with my other device that doesnāt have audio latency, I find this:
Fairphone 5:
Thread throttle time (msecs): 8886
AudioMixer tracks:
Master mono: off
Master balance: 0.000000 (0.000000)
FastMixer thread 0xb40000735b001cb0 tid=2268 FastMixer command=MIX_WRITE writeSequence=10119237 framesWritten=728584992
numTracks=5 writeErrors=0 underruns=87 overruns=7465
sampleRate=48000 frameCount=144 measuredWarmup=4.09 ms, warmupCycles=10
mixPeriod=3.00 ms latency=515.00 ms
FastMixer Timestamp stats: n=5054011 disc=38 cold=0 nRdy=0 err=0 rate=1 jitterMs(ave=0.000226565 std=0.484077 min=-0.973333 max=0.957761) localSR(48000.5, 8.35823e-07) correc
tedJitterMs(ave=-1.35806e-05 std=0.0101412 min=-0.830885 max=0.866562)
Simple moving statistics over last 98.3 seconds:
wall clock time in ms per mix cycle:
mean=3.00 min=1.67 max=4.35 stddev=0.52
raw CPU load in us per mix cycle:
mean=260 min=38 max=742 stddev=49
Distribution of mix cycle times in ms for the tails (> ~3 stddev outliers):
left tail: mean=2.28 min=1.67 max=2.33 stddev=0.16
right tail: mean=3.92 min=3.83 max=4.35 stddev=0.11
Fast tracks: sMaxFastTracks=8 activeMask=0xe3
Index Active Full Partial Empty Recent Ready Written
0 yes 376 0 293 full 1872 728486640
1 yes 898 0 974 full 1152 9438480
2 no 842 0 943 empty 0 5885424
3 no 642 0 183 empty 0 5884704
4 no 986 0 116 empty 0 5884704
5 yes 732 0 388 full 288 3184416
6 yes 621 0 369 full 288 3184416
7 yes 393 0 411 full 288 3183840
Stream volumes in dB: 0:-12, 1:-inf, 2:-inf, 3:-21, 4:-15, 5:-inf, 6:-inf, 7:-inf, 8:-inf, 9:0, 10:-19, 11:-21, 12:0, 13:0, 14:0
Normal mixer raw underrun counters: partial=0 empty=293
4 Tracks of which 4 are active
Type Id Active Client Session Port Id S Flags Format Chn mask SRate ST Usg CT G db L dB R dB VS dB Server FrmCnt FrmRdy F Underruns Flushed Latency
F5 1357 yes 13344 11265 1639 A 0x000 00000001 00000003 48000 3 1 0 -29 -8.5 -8.5 0 003099F0 288 288 f 0 0 520.00 t
F7 1359 yes 13344 11281 1641 A 0x000 00000001 00000003 48000 3 1 0 -21 0 0 0 003097B0 288 288 f 0 0 520.00 t
F6 1358 yes 13344 11273 1640 A 0x000 00000001 00000003 48000 3 1 0 -21 0 0 0 003099F0 288 288 f 0 0 520.00 t
F1 1352 yes 13344 11217 1634 A 0x000 00000001 00000003 48000 3 1 0 -21 0 0 0 009007E0 1152 1152 f 0 0 538.00 t
Other device:
Thread throttle time (msecs): 33
AudioMixer tracks:
Master mono: off
Master balance: 0.000000 (0.000000)
FastMixer thread 0xe760ce40 tid=1414 FastMixer command=MIX_WRITE writeSequence=32058211 framesWritten=3077588160
numTracks=5 writeErrors=0 underruns=1899 overruns=15202
sampleRate=48000 frameCount=192 measuredWarmup=16.8 ms, warmupCycles=5
mixPeriod=4.00 ms latency=21.00 ms
FastMixer Timestamp stats: n=16023302 disc=1176 cold=4 nRdy=0 err=0 rate=1 jitterMs(ave=-0.000112635 std=0.14333 min=-3.74734 max=397.39) localSR(48003, 4.22684e-08) correcte
dJitterMs(ave=-8.31926e-05 std=0.00877857 min=-20.0409 max=397.348)
Simple moving statistics over last 131.1 seconds:
wall clock time in ms per mix cycle:
mean=4.00 min=0.65 max=11.77 stddev=0.43
raw CPU load in us per mix cycle:
mean=703 min=81 max=4785 stddev=224
Distribution of mix cycle times in ms for the tails (> ~3 stddev outliers):
left tail: mean=1.05 min=0.65 max=1.43 stddev=0.21
right tail: mean=7.49 min=6.15 max=11.77 stddev=1.12
Fast tracks: sMaxFastTracks=8 activeMask=0xd9
Index Active Full Partial Empty Recent Ready Written
0 yes 612 0 163 full 1152 3076442688
1 no 0 0 0 full 0 0
2 no 0 0 0 full 0 0
3 yes 732 16 302 full 1536 15216960
4 yes 735 20 470 full 384 7549056
5 no 0 0 0 full 0 0
6 yes 383 3 114 full 384 7548480
7 yes 652 0 55 full 384 7548672
Stream volumes in dB: 0:0, 1:-inf, 2:-inf, 3:-27, 4:-13, 5:-inf, 6:0, 7:-inf, 8:-inf, 9:0, 10:-19, 11:0, 12:0
Normal mixer raw underrun counters: partial=0 empty=163
7 Tracks of which 4 are active
Type Id Active Client Session Port Id S Flags Format Chn mask SRate ST Usg CT G db L dB R dB VS dB Server FrmCnt FrmRdy F Underruns Flushed Latency
F5 1632 no 3072 11985 1659 I 0x004 00000001 00000001 48000 8 3 0 -inf -10 -10 0 00000000 960 0 I 0 0 new
F1 55 no 2688 9 22 I 0x004 00000001 00000001 48000 8 3 0 -inf -18 -18 0 00000000 960 0 I 0 0 new
F2 56 no 2688 17 23 I 0x004 00000001 00000001 48000 8 3 0 -inf -18 -18 0 00000000 960 0 I 0 0 new
F7 9850 yes 8221 71545 10190 A 0x000 00000001 00000003 48000 3 1 0 -27 0 0 0 00733200 384 384 f 0 0 29.00 t
F4 9848 yes 8221 71529 10188 A 0x000 00000001 00000003 48000 3 1 0 -36 -8.5 -8.5 0 00733380 384 384 f 0 0 29.00 t
F3 9825 yes 8221 71265 10163 A 0x000 00000001 00000003 48000 3 1 0 -27 0 0 0 00E83440 1536 1536 f 384 0 53.00 t
F6 9849 yes 8221 71537 10189 A 0x000 00000001 00000003 48000 3 1 0 -27 0 0 0 00733140 384 384 f 192 0 29.00 t
As we can see, the FP5 has a latency of 515 ms in what is suposed to me the ālow-latency trackā, when the other device gets 21 ms.
Again, I can be totally in the wrong track myself, but it seemed very odd to see that difference. Maybe some kind of error in the android-platform configuration?
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Nice find. I suggest you contact support with this detailed information, thatās the surest way to get a fix into one of the future updates.
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Okey, do you know what is the best way to contact them?
I opened a Ticket AT the official Support contact from fairphone parallel to this thread. I have sent Them a link to this thread in the Ticket with the hint to your, i hope, helpful discovery
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Even if @Icey opened a ticket with a link to this topic I would advice you to open one as well, as they dont look really at linked topics unless you insist they have to 
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Yeah i also thought about that. You can try of you want. When this Problem is solved, i have no bigger (i am a little shocked while typing this because Auto correction suggested Nigger instead of bigger O_o) concerns about keeping this really nice Piece of Phone
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Talked yesterday with customer support. He wanted to discuss it with the concerning Departement and reply when there is something New. He also took a Look at this thread.
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