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M9 USB DAC input lag

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Post time 2018-10-30 17:30:50 |Show all posts |
I tried using the fiio m9 as a usb dac and theres input lag when im watching a show. I tried changing the audio buffer size but the lag is still there.
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Post time 2018-11-2 16:09:00 |Show all posts |
Edited by FiiO-Jojo at 2018-11-2 16:10

Dear friend,

Thanks for the kind feedback. We will report to the engineer about that and try to improve this.

Best regards
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Post time 2018-11-13 17:48:14 |Show all posts |
Same Problem here with my new M9 that i just received. I was using a Chord Mojo on my PC before without any lag. The M9 now introduces a very long lag. It's fine for listening to music, but makes watching youtube etc. impossible. Please fix this asap .
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Post time 2018-11-15 11:40:08 |Show all posts |
Bkido replied at 2018-11-13 17:48
Same Problem here with my new M9 that i just received. I was using a Chord Mojo on my PC before with ...

Dear friend,

Thanks for the kind feedback. We have reported to the engineer about that.
Will try to improve it in next firmware update.

Best regards
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Post time 2018-11-17 07:16:53 |Show all posts |
On the older, now unceremoniously abandoned X series models, this bug was never fixed.  

The workaround was to set the source sample rate as high as possible so the lag would be less obvious, I found 192k was good to get back A/V sync.
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Post time 2018-11-22 14:41:17 |Show all posts |
MisterC925 replied at 2018-11-17 07:16
On the older, now unceremoniously abandoned X series models, this bug was never fixed.  

The workar ...

Dear friend,

The DAC output delay is related to various factors.
The output selection is one of those. You could try to choose ASIO output for help instead.

Best regards
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Post time 2019-1-4 21:38:09 |Show all posts |
FiiO-Jojo replied at 2018-11-22 14:41
Dear friend,

The DAC output delay is related to various factors.

ASIO Output is only an option for Audio Players where the delay is not that critical. It's more about being able to use the M9 as USB-DAC watching Videos where output lag is very critical.
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Post time 2019-1-7 10:34:19 |Show all posts |
Bkido replied at 2019-1-4 21:38
ASIO Output is only an option for Audio Players where the delay is not that critical. It's more ab ...

Dear friend,

Sorry about that.
Thanks for the kind feedback. We have reported to the engineer about that.
Will try to improve it in next firmware update.

Best regards
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Post time 2019-1-10 15:58:55 |Show all posts |
I am having this issue too. Both on high and low bitrates, and both with the official FiiO driver and the built-in Windows driver, the audio is very late. Interestingly the problem temporarily goes away if I unplug and reinsert the USB and then immediately start playing stuff. The delay reappears if the audio stream stops (yellow FiiO light goes away) for more than a few seconds.
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Post time 2019-1-14 16:06:24 |Show all posts |
I confirm, very annoying issue. I've used BTR3 as usb dac and everything works great, but not in case with M9
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Post time 2019-1-24 03:06:37 |Show all posts |
It's still there
I can not watch a concert on youtube because of that input lag.
Its also on Mac OS not only on windows.
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Post time 2019-1-31 21:46:05 |Show all posts |
Version 1.0.4 on the M9 and still no improvement concerning the lag. It's terrible to watch videos like this. If this doesn't improve soon I'll look out for other solutions.
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Post time 2019-2-3 02:33:11 |Show all posts |
Not to be rude but why use this as a DAC from your computer when watching YouTube videos? You’d be better off plugging headphones/speakers directly into your computer.Youtube audio is pretty compressed
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Post time 2019-2-4 16:43:37 |Show all posts |
Edited by Bkido at 2019-2-4 16:55
Droidacx1 replied at 2019-2-3 02:33
Not to be rude but why use this as a DAC from your computer when watching YouTube videos? You’d be  ...

1. because it's also advertised as an USB DAC and one should be able to expect not to have such a long output lag.

2. I got the M9 for it's LDAC transmitting capabilities to feed my LDAC Bluetooth headphones to be wireless in the office. Also the sound of my laptop is 1. onboard sound (bad) and 2. only supports SBC Bluetooth that sounds pretty bad also. If I wanted cables I'd already have a Chord Mojo and Sennheiser 6xx at the office but I wanted something wireless for the office.

3. In general I'm using the M9 to listen to Tidal via the PC Client ( Unfortunately Tidal doesn't support something similar like Spotify connect). I just wanna be able to watch a youtube video in between without this lag.
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Post time 2019-3-21 18:08:21 |Show all posts |
@fiio: Any news on this matter? I'm currently not even using my M9 anymore because of this issue. When can we expect that this issue will be fixed? If it'll never be fixed please let me know as well so I can watch for another solution.
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Post time 2019-3-22 17:50:25 |Show all posts |
Dear friend,

It may still take some more time for the engineer to improve this issue. Sorry for bringing inconvenience to you.

Best regards
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Post time 2019-3-27 06:38:45 |Show all posts |
Edited by drakor007x at 2019-3-27 06:40

I confirm lag too. I have checked USB DAC and Bluetooth DAC (LDAC) and both modes have unpleasant delays
For cable connections, this applies to each transmission speed. And transmission speed can't be set for Bluetooth.

M9 (fw 1.0.4)
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Post time 2019-3-28 22:45:20 |Show all posts |
Hello. I confirm the delay, as well as the poor sound quality through the USB DAC. Same quality I've got when replaced Tidel app with version from ApkMirror. Fiio Music and built in Tidel sounds well.

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Post time 2019-4-2 03:43:41 |Show all posts |
Edited by grola at 2019-4-2 03:44

Trust me im an EngINeER !!!!!!!!!!!!!!!!!!!!!!!!!!
I think we'll put this thing right here
Trust me im an engineer !
Whadafaq did just happend here ???
Trust me im engineer !!
with epic skill and epic gear
Trust me im engineer !!!!
ohshitt i think im outta here
(sorry but please fix this it makes the product I paid for almost unusable please fix)
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Post time 2019-4-6 23:11:42 |Show all posts |
Hi, i have tried USB DAC mode with Foobar2000 with ASIO component (status in FiiO control panel said "ASIO is active") and here are lags too

Please, fix this problem. More cheaper Fiio BR3 does not have this lag problem.
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