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#283112 - 2019-02-24 15:05 Streaming audio drop out when lights switched but only when DSP preset is on
Registered: 2000-11-01
Posts: 2,668
RobertW Offline
Robert.W Great Green Arkleseizure
RobertW Offline
Robert.W
Great Green Arkleseizure

Registered: 2000-11-01
Posts: 2,668
Loc: Austria, Europe
Need some help, please.

My chain is modem/router -> Fritzbox -> switch -> then 4 audio zones

1) 861 and ID40
2) 218
3) Trinnov Amethyst
4) PC and soundcard

Each zone can stream independent from the other network wise. as all zones are in ONE room, the audio signal choices are :

>>> ....means signal flow
(XXX)...means wiring

1) _______________ID40/861 >>> (SL_XLR_RCA) >>> Trinnov >> (XLR_SPDIF_SL) >>> 3x front DSP

2) 218 >> (SL) >>>>>>> 861 >>> (SL_XLR_RCA) >>> Trinnov >> (XLR_SPDIF_SL) >>> 3x front DSP

3) ______________________________________________Trinnov >> (XLR_SPDIF_SL) >>> 3x front DSP

4) PC >> ( TOSLINK) >> 861 >>> (SL_XLR_RCA) >>> Trinnov >> (XLR_SPDIF_SL) >>> 3x front DSP


Roon & Tidal remote control is via an iPad. System core is the PC (W10) with the sound card.

When I switch on my electrical lights I can hear a small crack in the speakers.
Switch the halogen lights off, the audio go silent for about 1-2 seconds and then go on smooth-like turn the volume gently up.
That never happened before!
It's only there when a DSP preset is enabled, only then!

The lights are on a separate line, there also no big load on them as mostly replaced with LED, also a long time ago.
I know the "only" reason can come from the transformer of the light, when it get switched off, but why now, and more important - HOW can it disturb only on presets?

Yes, switched off and on power on all units and restart from ground all network connections, checked quickly the electrical wires.

Any ideas?


861v6+ID40/800v3/3x8k.2/3x5k5s smile /2x5kC/ 218/Explorer/TT-ELP/Trinnov Amethyst
__HB-strip, Ayon/HB/Shunyata/Dream State Audio/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__WMA/Finalizer- , iPad air, Macbook-pro.
Reviver
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#283152 - 2019-02-25 22:25 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: RobertW]
Registered: 2012-04-17
Posts: 2,218
3dit0r Offline
Senior Shouting Officer
3dit0r Offline
Senior Shouting Officer

Registered: 2012-04-17
Posts: 2,218
Loc: South UK
Really weird.

What precisely do you mean by a DSP preset, just to avoid any confusion?


818v3, DSP7200.2, HD621, Oppo BDP-105, Sony VPL-HW55ES projector, Kimber Mains Cables, Russ Andrews Rack and Mains Filtration, GIK Room Treatments
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#283155 - 2019-02-26 08:28 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: 3dit0r]
Registered: 2004-08-07
Posts: 7,743
Ian Offline
President of the Imperial Galactic Government
Ian Offline
President of the Imperial Galactic Government

Registered: 2004-08-07
Posts: 7,743
Loc: Surrey, England, UK
Check light switch connectors (with power off, obs), change the light switch (power off again, just saying for those that it’s not obvious) and/or get a sparkie in.

Things deteriorate over time, especially electro mechanical, especially if it’s cheap and/or DC being switched. Find the root cause, it’s probably something obvious.


Meridian owner since 1992
Prime & PSU, Focal Elear headphones, roon (ROCK 8Gi5 Nuc), Explorer 1 & 2, F80. 200/203, MC200 and various Sonos.

Appreciate the help I have given over the years? About to order a new Tesla? Please consider using my Tesla referral code when ordering to share free Supercharger miles.
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#283167 - 2019-02-26 11:47 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: 3dit0r]
Registered: 2000-11-01
Posts: 2,668
RobertW Offline
Robert.W Great Green Arkleseizure
RobertW Offline
Robert.W
Great Green Arkleseizure

Registered: 2000-11-01
Posts: 2,668
Loc: Austria, Europe
DSP press like trifled music and so on


861v6+ID40/800v3/3x8k.2/3x5k5s smile /2x5kC/ 218/Explorer/TT-ELP/Trinnov Amethyst
__HB-strip, Ayon/HB/Shunyata/Dream State Audio/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__WMA/Finalizer- , iPad air, Macbook-pro.
Reviver
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#283168 - 2019-02-26 11:48 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: Ian]
Registered: 2000-11-01
Posts: 2,668
RobertW Offline
Robert.W Great Green Arkleseizure
RobertW Offline
Robert.W
Great Green Arkleseizure

Registered: 2000-11-01
Posts: 2,668
Loc: Austria, Europe
Thanks Ian, but why then only on DSP presets ?


861v6+ID40/800v3/3x8k.2/3x5k5s smile /2x5kC/ 218/Explorer/TT-ELP/Trinnov Amethyst
__HB-strip, Ayon/HB/Shunyata/Dream State Audio/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__WMA/Finalizer- , iPad air, Macbook-pro.
Reviver
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#283169 - 2019-02-26 11:54 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: RobertW]
Registered: 2004-04-15
Posts: 12,505
VirusKiller Online content
Don't Panic
VirusKiller Online content
Don't Panic

Registered: 2004-04-15
Posts: 12,505
Loc: nr. Milton Keynes, UK
Do you hear it in Direct or Stereo? If not, it suggests something is affecting the centre or surrounds.


Roon Developer and ex-moderator of this Forum
I am #25 in the HH1 photo of fame.
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#283170 - 2019-02-26 11:55 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: RobertW]
Registered: 2001-05-23
Posts: 2,845
Gianni Online content
Great Green Arkleseizure
Gianni Online content
Great Green Arkleseizure

Registered: 2001-05-23
Posts: 2,845
Loc: North London, United Kingdom
Could it be that only the DSPs (vs. Direct) provide a signal to the centre/surround speakers. And that you are hearing that interference as though it comes from all speakers? Set a source to "Mono" and see where the sound interference apparently comes from.


"Wonderful perfect quadraphonic sound with distortion levels so low as to make a brave man weep" - Prostetnic Vogon Jeltz of the Galactic Hyperspace Planning Council
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#283196 - 2019-02-27 08:26 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: Gianni]
Registered: 2004-10-20
Posts: 1,480
GMT Offline
Working on the ultimate question
GMT Offline
Working on the ultimate question

Registered: 2004-10-20
Posts: 1,480
Loc: Cambridge, Cambs, UK
Hi Robert

Try it with one speaker switched off to see if it relates to power draw. (not sure that DSP modes would use more power but worth eliminating)
I'd repeat this with other speakers one at a time.
Cheers
Tom


Main: G61 SL, 218 HD621, 2* 7200SE, 5200HC, DSW,3200s,SBT, PS4, Amazon TV Fire, Dune Base 3.0, Xbox, NUC (Roon server & Kodi)
Kitchen: 5200s, SBT, Chromecast
Office: A330i, G41, Explorer2,Velodyne CT120
F80s, M60s
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#283201 - 2019-02-27 10:03 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: GMT]
Registered: 2018-04-11
Posts: 46
Alikris Offline
Mostly harmless
Alikris Offline
Mostly harmless

Registered: 2018-04-11
Posts: 46
Loc: Northumberland, UK
RF interference is well known to cause audio to momentarily drop out when switches or motors (such as fridge compressors) are turned on.

It's something that happens to my system in one specific use case although normally I just hear a low level click when the fridge turns on. For me, as I say, the offending items are the fridge and also some colour changing LED lights. Sadly my electrical wiring is not fantastic and the kitchen is on the same electrical circuit as the lounge.

It's infuriating to be watching a film and suddenly you can't hear what the actors are saying for a couple of seconds!

It very much sounds to me like your problem is the same as mine.

Out of interest, my specific use case is SPDIF out from PC to a SPDIF > AES/EBU adaptor into the Behringer DEQ2496 then Toslink from the DEQ2496 to the Meridian G61R. Toslink from PC to DEQ2496 is immune to this interference but sadly the latency is ridiculously high from the PC Toslink output. (I use the DEQ2496 as a compressor/limiter for films at night). So, for me the problem is just SPDIF coax Pc out to AES/EBU Behringer input. Interestingly, the audio drop out for a couple of seconds is happening in the G61R, not the Behringer

Does it happen to you in all your zones?

I'd suggest trying to discover which piece of equipment or which cable is the culprit by unplugging everything then plugging in one item at a time, using different routes & cables (eg try Toslink instead of Coax) Eg, try without the Trinnov in the circuit then try without the 861. Hopefully you'll find which item (cable or piece of hardware) is the culprit. It's a process of elimination.

Good Luck!

Ali.


Meridian G61R, Behringer A500 amps & DEQ2496 DSP, MiniDSP U-DIO8 audio interface, B&W DM2 Mk2 Speakers (3 pairs), Sony CD, Sony DAT(x3), Alesis Hard Disk Recorder, Sony APR5003 Reel to Reel Recorder. Akai AT93 Tuner & GX-95 MK2 Cassette Deck, Technics SL-1200 Turntable, Valve Phono stage, Denon DL-110 cartridge.

Ambisonic user since the 1980's
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#283206 - 2019-02-27 11:43 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: Alikris]
Registered: 2012-04-17
Posts: 2,218
3dit0r Offline
Senior Shouting Officer
3dit0r Offline
Senior Shouting Officer

Registered: 2012-04-17
Posts: 2,218
Loc: South UK
Originally Posted By Alikris
RF interference is well known to cause audio to momentarily drop out when switches or motors (such as fridge compressors) are turned on.

It's something that happens to my system in one specific use case although normally I just hear a low level click when the fridge turns on. For me, as I say, the offending items are the fridge and also some colour changing LED lights. Sadly my electrical wiring is not fantastic and the kitchen is on the same electrical circuit as the lounge.

It's infuriating to be watching a film and suddenly you can't hear what the actors are saying for a couple of seconds!


If this is the case, you might follow the general advice on this page and consider fitting the suppressor device if the problem persists once all other electrical wiring has been checked.


818v3, DSP7200.2, HD621, Oppo BDP-105, Sony VPL-HW55ES projector, Kimber Mains Cables, Russ Andrews Rack and Mains Filtration, GIK Room Treatments
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#283221 - 2019-02-27 20:55 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: 3dit0r]
Registered: 2000-11-01
Posts: 2,668
RobertW Offline
Robert.W Great Green Arkleseizure
RobertW Offline
Robert.W
Great Green Arkleseizure

Registered: 2000-11-01
Posts: 2,668
Loc: Austria, Europe
Thanks for all your help,
Iam still searching, will report back asap.


861v6+ID40/800v3/3x8k.2/3x5k5s smile /2x5kC/ 218/Explorer/TT-ELP/Trinnov Amethyst
__HB-strip, Ayon/HB/Shunyata/Dream State Audio/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__WMA/Finalizer- , iPad air, Macbook-pro.
Reviver
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#283222 - 2019-02-27 21:01 Re: Streaming audio drop out when lights switched but only when DSP preset is on [Re: RobertW]
Registered: 2012-04-17
Posts: 2,218
3dit0r Offline
Senior Shouting Officer
3dit0r Offline
Senior Shouting Officer

Registered: 2012-04-17
Posts: 2,218
Loc: South UK
Good luck!

Must admit I’m intrigued to hear what you find.


818v3, DSP7200.2, HD621, Oppo BDP-105, Sony VPL-HW55ES projector, Kimber Mains Cables, Russ Andrews Rack and Mains Filtration, GIK Room Treatments
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