XTRONS hissing/buzzing after Alpine upgrade Audi TT Mk2 - MTCB Android Head Units General

Hi all,
I recently swapped the original Audi TT concert Radio for an XTRONS (the one that looks like an RNSE Reference Number is IB79ATTRP). Now the Unit works very well, especially after the modded Amp was installed. Yesterday I swapped the original Speakers and Amp with an original Audi Sound Plus System (by ALPINE). The sound quality boost is immense, though it is creating a hissing sound that is constant all the time. It wasn't there prior and when I turn the unit off it is gone, so I guess it is a problem with the XTRONS. When I crank the music up it is not really noticeable, but when the music is low it is very annoying.
I don't really want to drive around blasting music 24/7
Any help is much appreciated!

What did reseller suggest when contacted for support. What has been tried from the other threads in MTCD section (if your unit is an MTCD)

Teh crickets.

AndroidNoob13 said:
Hi all,
I recently swapped the original Audi TT concert Radio for an XTRONS (the one that looks like an RNSE Reference Number is IB79ATTRP). Now the Unit works very well, especially after the modded Amp was installed. Yesterday I swapped the original Speakers and Amp with an original Audi Sound Plus System (by ALPINE). The sound quality boost is immense, though it is creating a hissing sound that is constant all the time. It wasn't there prior and when I turn the unit off it is gone, so I guess it is a problem with the XTRONS. When I crank the music up it is not really noticeable, but when the music is low it is very annoying.
I don't really want to drive around blasting music 24/7
Any help is much appreciated!
Click to expand...
Click to collapse
I wonder if you were able to fix the buzzing noise. I installed the xtrons 10in and I have kinda the same issue. When I turn on the headlights it lowers the buzzing noise down significantly. I thought it might have been my JBL amp so I tried lowering it but its still there just lower.

Related

Does Diamond Bluetooth suck or is it my HF?

I recently got a Jabra BT3030 for use as a HF and possibly music player. The only other choice in the shop was the SE DS200, so I thought meh the Jabra is a little cheaper and probably as good.
The HF works just fine: simple connection, buttons all work and people can hear me talking just fine. The only issue being the quirky music/volume after turning it off, but its no big deal.
What's wrong is the HORRIBLE, ABYSMAL, DOWNRIGHT UGLY sound output. There is a constant hissing in the background, its like a slightly offset radio station. I may not be an audiophile but every test/review I've read of this including user impressions say that the quality is "good", some even claim its "like wired earbuds". I dont call this good at all and its as far away from wired it can be.
However I've been unable to test it in another BT phone (wont work on my old SE K600i) as my main suspect is the phone, not the Jabra.
Unless of course, BT handsfree on the Diamond is meant to hiss? Or is the Jabra actually this bad quality? Anyone know that's used far more BT than me, as the Jabra is.. well, the only one?
I own a Anycom BH-100 and it shows constant hissing as soon as connected to any device (PC USB dongle, HTC Magician / Hermes / Diamond).
Good thing is, when the music plays it's nearly gone ( = can't hear it anymore).
Hm, I suppose it bluetooth really is that bad. It hisses when I try to connect to my HP portable too.
My BT-headset gives a rather friendly quality. No hissing whatsoever, but it does have a little second of lag very occasionally. Much better than my old Nokia 6300, in any case.
So you wanna tell us, that you don't experience any difference between your headset being switched totally off and being on but no actual music playing?
3030 user here.I'd described the hissing present but not so much bothering. Not that I have much BT HF experience before, used entry level Jabra BT135 with N6120c. There I'd say was little bit of less hissing.
tha_rami said:
My BT-headset gives a rather friendly quality. No hissing whatsoever, but it does have a little second of lag very occasionally. Much better than my old Nokia 6300, in any case.
Click to expand...
Click to collapse
Well lag/slight stuttering I would understand since it is wireless, but this is a constant background hiss independant of any lag.
Well f**k me sideways on a wheelbarrow!
The Diamond is not at fault at all. Its the Jabra that STINKS.
I tested a DS200 here at work at its got nothing of the hiss on the 3030. On the 3030, I clearly hear when its activated (*ELECTRONIC CLICK*hsssssssssss...) and likewise when it goes to sleep. On the Sony, I hear *nothing*. Its utterly silent. Well, aside from the music.
I'm getting this exchanged ASAP. And to think I was blaiming the Diamond
no problem with my diamond!. excellent quality both with my stereo headphones playing music or with car BT device. the connection is instantaneous and no background noises.
i must be lucky...lol. i have no lag with iGO8, my camera is taking good pictures and generally speaking i have nothing to complain about i am embarrassed...feeling left out
I thought I'd resurect my thread with an update... It appears that its NOT the Jabra at fault. I got it exchanged for a new one (the store didnt have a DS-200 at this time) and my conclusions stands at this:
- Listening closer to the Diamonds top speaker (like putting my ear to it, not good to do lol), it has the exact same type of noise. Its just that the volume of sound is so much greater its immiedietly drowned out. In other words, the Diamond behaves like this.
- Listening closer to the Diamonds package wire HF, it once again has the exact same type of noise, but here it is considerably lower and you really have to listen hard to it to hear: its not really noticable during playback even on lower volumes. So once again, this is how the Diamond sounds.
- The Jabra 3030 exaggerate the noise 10x, hence why its so annoying and with poor quality. Listening on low volume is drowned out by noise.
I got to see if I can try my buddies DS-200 again, listen closer this time... I'm starting to suspect that its a matter of how good the signal processing is on the Jabra, due to the Diamond sending out a noisy signal. If the DS-200 handle audio like the wired HF (same behaviour, much less noise), then its obviously "as good as it gets".
Sounds to me like there's something wrong with your Diamond, I can't hear any hissing through mine with the included (wired) headset or from the speaker on the device.
poedgirl said:
Sounds to me like there's something wrong with your Diamond, I can't hear any hissing through mine with the included (wired) headset or from the speaker on the device.
Click to expand...
Click to collapse
I suppose that's possible... But did you listen real close? I cant hear the noise from the speaker unless I stick my ear to it and the wired noise is very subtle, unnoticable during playback. Maybe I just got sensitive ears
I have tried the DS-200 again and got a background noise level that's much closer to the wired level, though a little notch higher. And its far, far lower than the Jabra. In particular, the electronic sound on turn on/off is not that noticable while the Jabra make my ear twitch.
murklor said:
I recently got a Jabra BT3030 for use as a HF and possibly music player. The only other choice in the shop was the SE DS200, so I thought meh the Jabra is a little cheaper and probably as good.
The HF works just fine: simple connection, buttons all work and people can hear me talking just fine. The only issue being the quirky music/volume after turning it off, but its no big deal.
What's wrong is the HORRIBLE, ABYSMAL, DOWNRIGHT UGLY sound output. There is a constant hissing in the background, its like a slightly offset radio station. I may not be an audiophile but every test/review I've read of this including user impressions say that the quality is "good", some even claim its "like wired earbuds". I dont call this good at all and its as far away from wired it can be.
However I've been unable to test it in another BT phone (wont work on my old SE K600i) as my main suspect is the phone, not the Jabra.
Unless of course, BT handsfree on the Diamond is meant to hiss? Or is the Jabra actually this bad quality? Anyone know that's used far more BT than me, as the Jabra is.. well, the only one?
Click to expand...
Click to collapse
I have a Jabra BT3030 and it works just fine in fact its perfect... Are you using a stock rom by anychance... if so what version...? you may want to use a cooked rom with the latest O/S.. as this does solve alot of BT problems...!
I am using the latest official (1.93 I believe it is). I dont quite see how a cooked rom will change the bluetooth performance of the handsfree (as a sidenote, I have tested removing those two bluetooth variables in the registry that according to another site would vastly improve quality: it did absolutely nothing)... But granted, I may just try it tonight if I ever do figure out which one to use, lol.

[Q] Hiss / Static in headphones on Nook Color

Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
I noticed a slight static noise from the built in speaker on my NC. I've not listened that much with headphones - and it was in a noisy environment.
johnopsec said:
Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
Click to expand...
Click to collapse
Usually portable audio front ends include a mute circuit to suppress the pop when the power for the amp turns on and off to save power. But that's besides the point...
My ATH-M50s give a lot of hiss when plugged into the NC, and at 38 ohms are somewhat less sensitive than most cheapie headphones that these amps are usually designed to. When I get a chance I'll try some higher impedance phones.
johnopsec said:
Alternate title: Why does my new eReader not make a great audio player too?
So, I went out and bought a Nook Color on Friday. I bought it for the Android hacking fun and doubt that I'll ever use it for its B&N "intended purpose". With that being said, I've noted that there is a hiss / static in the headphones any time the audio is enabled. There appears to be some self-muting going on on the device itself almost as if it is completely disabling the bias to the audio output transistors after some seconds wherein the hiss goes away but, any time there is active sound going on, the hiss and associated noise (likely RFI getting into poorly designed/shielded audio circuitry) is very clearly and annoyingly there.
I'm using very good headphones (Bose QC-3's) which sound wonderful on everything else I plug them into including my Droid and Milestone phones.
Has anyone else noted this very annoying audio issue on the NC? If I don't figure out some way to get rid of it, it's going to put a serious damper on using the NC to watch videos when I fly. (LONG trans-oceanic flights!)
Click to expand...
Click to collapse
Might be worth taking your headphones into a B&N store and trying another NC out to confirm its not just an issue with your unit.
Have the same issue with the NC and bose QC3 head phones. Plugged in a cheap pair of ear buds from the airlines and no hiss.
The amp is definitely noisy-- the worst I've heard since my 1st Gen iPhone. I guess they had to skimp somewhere.
Yes, pretty hissy sound. I can live with it, I think, but it's bit disappointing.
Ditto. The hiss using my Ultimate Ears makes the Nook Color unusable for audio or video in a quiet or normal environment.
It might work on a plane where the ambient noise is so high.
Pretty loud hissing sound with both apple earbuds and image s4's.
I noticed this too the first time I used Pandora...
Typically, for me and I assume it's the same for most pepole...
A reader likes to read in a quiet environment and therefore when they do decided they want to use the audio on their nook it is for music at a lower volume in a quiet setting. So this static / auto shutoff problem is blaringly obvious.
Any chance this will/could be fixed with an update?
If not then the audio feature will be useless for me
*edit*
Also... the static only gets worse (louder) as you up the volume. So listening to the music at a higher volume doesnt mask the static it only makes it worse
I have the same noisy audio. I am very serious about my audio equipment, but I don't put the NC in that category. Yeah, it would be nice if it sounded great, but the hiss would not bother me for video & I prefer to listen to a quality MP3 player if I listen to music. I would actually rather make adjustments to a dedicated player, while reading, than use my ereader to change screens & make adjustments. The other factor is the impact on the battery life. I guess maybe not a big deal on the NC?, but surely with an eInk reader. I hope you can find a way to live happily with yours.
Cheers,
kev
Ditto for me too. Hiss makes Pandora unusable when using my ultimate ears. I'm definitely disappointed, and a little less eager for flash support now.
Sent from my Nook Color using XDA App
I have no problems at all with audio on my nc. In fact i haven't had any of the problems i've heard on the forums as yet. Hope i never do
Sent from my LogicPD Zoom2 using XDA App
I think there might just be inconsistency in the NCs, neither mine nor my brothers have this audio hissing problem, or the problems with the bezel/frame, or any of the other problems the have come up on the forums. Maybe they are being built at multiple factories and some just suck? or maybe they just don't do any quality control? Who knows, I would check out the NCs with other headphones (although it sounds like you use these headphones all the time, so it's unlikely that they are the problem) and your headphones with other NCs.
OMG... the nook color sucks at playing music when using the Panasonic RP-HC700 Noise Cancelling headphones. The static is almost unbearable. I posted a recording of it on youtube under the user name MilkManMOM. (I can't post links and be helpful yet) Grrrr...I'm angry now at B&N.
No audio hiss from headphones on mine. If yours does, it's defective. It's also still under warranty. Stop just complaining to us about it and have B&N fix it.
MilkManTech said:
OMG... the nook color sucks at playing music when using the Panasonic RP-HC700 Noise Cancelling headphones. The static is almost unbearable. I posted a recording of it on youtube under the user name MilkManMOM. (I can't post links and be helpful yet) Grrrr...I'm angry now at B&N.
Click to expand...
Click to collapse
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick test leads me to belive that earbuds meant for mp3 players work fine, but head phones have issues. This might be an impedence issue.
sent from my NC
jerrykur said:
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick tests hav led me to belive that earbuds meant for mp3 players work fine, but head phones have issues. Perhaps this is an impedence issue.
sent from my NC
Click to expand...
Click to collapse
sent from my NC
jerrykur said:
Try a different set of headphones. My Bose IE2s are fine, but my Senhiessers have a lot of hiss, especially when I use an inline amp.
My quick test leads me to belive that earbuds meant for mp3 players work fine, but head phones have issues. This might be an impedence issue.
sent from my NC
Click to expand...
Click to collapse
Its either a Impedance issue or Frequency issue. When using my good Sony Headphones which are Frequency Response : 5-24,000Hz I get a Ton of Hiss, but when I'm using my Crappy Work Speakers which are Dell 215, which has a Frequency Response of 100 - 20000 Hz I get No hiss at all.
I have not tried the Official Nook head phones but they are Frequency response: 20 Hz-18,000 Hz
My guess is that our Head phones are just too good for the Nook and we are hearing the Hiss in the Higher Frequency Range that "Normal" Headphones often can't reproduce. I have had the same issue with cheaper MP3 players you end up hearing the electronics in the device working. Good MP3 players and other media device normally have this sound filtered out or have things shielded in such a way that it minimized the effect.
therealguppy said:
Its either a Impedance issue or Frequency issue. When using my good Sony Headphones which are Frequency Response : 5-24,000Hz I get a Ton of Hiss, but when I'm using my Crappy Work Speakers which are Dell 215, which has a Frequency Response of 100 - 20000 Hz I get No hiss at all.
I have not tried the Official Nook head phones but they are Frequency response: 20 Hz-18,000 Hz
My guess is that our Head phones are just too good for the Nook and we are hearing the Hiss in the Higher Frequency Range that "Normal" Headphones often can't reproduce.
Click to expand...
Click to collapse
Ummm, no. First, anything above 20kHz is inaudible. Second, if you do have extraordinarily rare "miracle ears" and can hear slightly above the normal range, nothing above 20kHz would sound like a hiss... it would be an incredibly high-pitched whistle. Try playing around with a tone generator and see for yourself what extreme high-frequency sounds are like.
Oh, and I assure you that your Sony headphones cannot produce 5Hz and 24kHz tones, no matter what their marketing department claims.

[Q] Audio Hiss Problems?

I know this has been brought up before but I wanted to see if anyone has found a workaround for the problem of the audio hiss produced by the NC circuitry.
The hiss is terrible on my desktop monitors and makes my NC unusable as an audio source. Is this just an inconsistency between NCs ? Is this something I could exchange it for using my squaretrade warranty?
Also would it be possible to integrate some sort of software solution via a filter of some kind
Original Thread
You're not alone. I have the same problem with my NC, as well as my Dinc.
Mine has a bit of hiss, but only with certain pairs of headphones. In my case, it seems like it hates all of my cheaper earbud/in-ear sets but sounds just fine with my Sennheiser HD280s. Out of all the things people complain about, audio quality is the one that I have to agree on. The speaker on this thing is absolutely atrocious and the line-out is hit or miss as far as hiss/no hiss.
I finally hooked mine up to speakers today and I have to say that I did not notice any hiss.
I will say that the quality was not as good as my Iphone, but it was acceptable.
I haven't noticed any hiss on my nook and I've listened very closely. With Power Amp installed though, the sound quality gets noticeably better. Maybe try that out?

[Q] Increase Soung Output Through Head Phone Jack? Stock Rooted

I am loving my Nook Color. Using it to replace a laptop and books I take with me on plane trips for movies and reading.
I am running 1.1 Stock and Auto Nootered. I have my file re-encoded for playing on the Nook and they look great. Problem is with sound all the way up and using my noise canceling headphones, the sound is not quite as loud as I would like.
Is there a way to increase the sound output to the head phone jack?
shaxs said:
I am loving my Nook Color. Using it to replace a laptop and books I take with me on plane trips for movies and reading.
I am running 1.1 Stock and Auto Nootered. I have my file re-encoded for playing on the Nook and they look great. Problem is with sound all the way up and using my noise canceling headphones, the sound is not quite as loud as I would like.
Is there a way to increase the sound output to the head phone jack?
Click to expand...
Click to collapse
See this is an entirely different science.
Often, both noise canceling headphones and high quality headphones require a certain about of ohm's to power them. Many people even use headphone amplifiers to amplifier the amount of ohms the headphones recieve, which in turn boosts the volume.
Most players(like ipod) have artificial amplifiers built into the DAP(digital audio processor)
The Nook was made as an ereader. it doesn't have a powerful DAP. On some phones they have a dedicated headphone/headset amp which you can crank up.
The nook doesn't.
Therefore, the sound is quiter on these headphones.
comdei said:
See this is an entirely different science.
Often, both noise canceling headphones and high quality headphones require a certain about of ohm's to power them. Many people even use headphone amplifiers to amplifier the amount of ohms the headphones recieve, which in turn boosts the volume.
Most players(like ipod) have artificial amplifiers built into the DAP(digital audio processor)
The Nook was made as an ereader. it doesn't have a powerful DAP. On some phones they have a dedicated headphone/headset amp which you can crank up.
The nook doesn't.
Therefore, the sound is quiter on these headphones.
Click to expand...
Click to collapse
Thanks for the great feedback! So it seems like something like http://www.radioshack.com/product/index.jsp?productId=2732095 should work well? I need local-ish as I am heading on a plane Saturday.
I was suffering the same problem. I could barely hear my NC when playing a movie while on the treadmill at my local gym. I bought a tiny little amp about the size of an iPod nano (Amazon for about $20). It turns out that it doesn't bump the volume up all that much. It's enough for my needs, but would not be enough for a plane trip. The little Radio Shack amp you linked to should work. As long as it you only turn it up to say, 5 or 6 (out of an assumed 10), and it's VERY LOUD (while sitting on your couch), that should give you sufficient headroom for a plane trip.
I recall reading a thread at this site about a kernel that would allow you to bump up the native volume. There's been sooo many kernels and updates that I can't recall which one did the trick...
Jgrimoldy said:
I was suffering the same problem. I could barely hear my NC when playing a movie while on the treadmill at my local gym. I bought a tiny little amp about the size of an iPod nano (Amazon for about $20). It turns out that it doesn't bump the volume up all that much. It's enough for my needs, but would not be enough for a plane trip. The little Radio Shack amp you linked to should work. As long as it you only turn it up to say, 5 or 6 (out of an assumed 10), and it's VERY LOUD (while sitting on your couch), that should give you sufficient headroom for a plane trip.
I recall reading a thread at this site about a kernel that would allow you to bump up the native volume. There's been sooo many kernels and updates that I can't recall which one did the trick...
Click to expand...
Click to collapse
I was thinking about this one: http://www.amazon.com/FiiO-E5-Headphone-Amplifier/dp/B001P9EQH8/ref=cm_cr_pr_product_top
Is that the one you got by any chance?

Samsung Level U Pro - BT Headphones - Wow

Picked these up on Amazon for £70, main reason was level app gives all the function and tuning sound to suit plus the two speaker per earpiece design.
Cut to the chase stunning sound. I am picky with around 10 pairs of headphones ranging from Sony, Beats to AT. Also an ex audiophile coming from full on active Naim Audio system. Reason for mentioning that was the way Naim exerts grip, control, detail and ease rarely phased.
This sums up the headphones, never experienced this sort of deep controlled taut bass on headphones coupled with a clear midrange- normally one ruins the other.
The sound level when you attach the right size buds is shockingly loud - at max phone and headset zero distortion.
Plus you get all the notifications and crap s voice. Can take calls not tried says has two microphones.
Negatives, neck surround it very hard and stiff, ear buds do not totally seal and on my set BT occasionally disconnects but worst of all an ongoing BT skip every 15 - 30 seconds.
Hope I can solve the connectivity as even my cheap mpow have zero BT issues.
All that said an awesome headset.
Update: Reset the level U and unpaired, then repaired - all sorted NO BT connectivity issues, also have my Gear S2 and Car BT connected this morning.
Wore it to work, forgot I had it on as it was just hanging on my shoulders, realised when it vibrated (notifications).
Tried a few call, very good, I prefer to use it with 1 earpiece, mic quality (has 2) seems very good to the other party.
What about battery life?
Not really timed it but on a full charge 6 days ago have had 5hrs use in the app still shows more than half.
#EarphonesNotHeadphones
level u
i am experiencing the stuttering issues you were talking about instead i have samsung level pro how did you reset yours?
I have a problem. i have samsung s6 and level u, and while i'm talking some times i can't hear the other side the same him.
if i turn off bluetooth and the on everything is ok. it doesn;t lose the connection. do you know what problem is this??
with music listening i have no problem
pls help
As mentioned I had a skip issue but that was with my s2 watch and headphones after unpairing and repairing never been an issue.
Sent from my SM-G935F using XDA-Developers mobile app
Hi
I have the samsumg level u pro anc . In my opinion i can say the sound is not the best
is normal like any other device .The anc version sorry to say this but it's garbage and the Uhd I don't see a big difference when is on or off . I had many bluetooth headsets and i can say for my the best bt headset was the motorola s9 a real HD sound after that the s10 and s11 they didn't have a sweet sound
btw. I have stuttering too I don't know if it's the headset or the samsung s7 .
I hope samsung gives a fix for this.
Bought the Level U Pro today
oskedlack said:
I have the samsumg level u pro anc . In my opinion i can say the sound is not the best
is normal like any other device .The anc version sorry to say this but it's garbage and the Uhd I don't see a big difference when is on or off . I had many bluetooth headsets and i can say for my the best bt headset was the motorola s9 a real HD sound after that the s10 and s11 they didn't have a sweet sound
btw. I have stuttering too I don't know if it's the headset or the samsung s7 .
I hope samsung gives a fix for this.
Click to expand...
Click to collapse
Bought this unit today and paired with Axon 7 Mini and instantly hated the sound and volume level.....of course i was driving away from the store and just had to try it. I immediately put the headset on my center console in my car and left it till i finished up my other activities and didn't touch it till i got home and downloaded the Level app from the play store. Pulled up reviews on amazon,and Headfi and saw people raving about the sound quality,put my laptop down and started going through my settings on the phone players(Neutron,Poweramp beta,and built in ZTE hi res player)......then setup Samsung Level app and changed the silicone tips to a set that fit my ears perfectly and then .....DAMN ! These things DO sound amazing. The quality of the drivers is beyond what i expected and the volume is just perfect....I love to crank it up,but my ears have been damaged through playing in live bands and crazy loud car stereos,and the volume was loud but not painfully so....These are keepers and sound great with the Dolby Atmos turned on. My two cents .....great deal when you find these now for $39.99

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