yashsingh1/xdaforums huggingface dataset:
[Google Pixel 2 XL Guides, News, & Discussion] pixelsquish:
I find both the Razer and HTC dongles to be noticeably superior to the stock one but only using one test, my ears on a high end pair of IEM's. HTC is a little more warmer sound, Razer is slightly more analytical than HTC. These are what my ears tell me. In other forums people who buy one of these two dongles seem to also immediately notice an improvement over the stock Google one.

Other thing of note is the HTC dongle is cheaper and also smaller than Razer. I'd say the HTC is the best value for money between the dongles.
[Google Pixel 2 XL Guides, News, & Discussion] bjrmd:
This thread was intended as a look at objective audio measurements and such.

Please start a new post elsewhere if the discussion is about subjective opinions.
[Google Pixel 2 XL Guides, News, & Discussion] bjrmd:
I did a couple of more tests requested by some folks.

Linearity at a low frequency (it was alleged that the sound was "thin" by someone). Thanks to my friend @chdloc for guiding me in how to test for this:

For loudspeakers, it is certainly true that a lot of air needs to be moved to produce low frequencies. Lorentz' law states that

force = (magnetic flux density)*(electric current)*(length of voice coil conductor)

This force is then exerted onto a membrane that moves the air. The more air is moved the louder (and potentially lower in frequency) it is.

Hence, it is actually more important for an amplifier to be able to deliver current rather than voltage. (Other important factors that impact the quality of low-frequency sound reproduction are the linearity of the magnetic field at the limits of excursion and the motor's thermal behavior.)

All of this is much less important for headphones as the drivers are extremely close to our ears, so the membranes don't have to move nearly as much, Also, the nearfield effect helps a lot with the low frequencies.

Unless a headphone amp engages its current limiter there should not be a problem. You can probably measure the linearity (presence of a limiter) of the amp driving a load quite easily: start with a low-level (low-frequency?) signal and increase the digital gain at set gain intervals. If the output level keeps increasing at the same intervals, then you know the amp is linear. Do this until get to max digital gain.

Test of both HTC Dac and Google's

Compare no load vs HD 800s, both at max android volume and just manipulate the Dac gain from 50% to max.

Full scale 40 Hz sine

Conclusion--

Excellent linearity on both with no noticeable drop off at low frequency bass. The perceived sound was of excellent fidelity.
[Google Pixel 2 XL Guides, News, & Discussion] bjrmd:
And someone wanted to know at what point does the Google Dac start to ramp up on it's distortion.

It's about 80%
[Google Pixel 2 XL Guides, News, & Discussion] automattic:
I would be interested to see some tests on Sabaj Da3, the reviews seem to be pretty stellar and not a bad price at $99.
[Google Pixel 2 XL Guides, News, & Discussion] Garrret:
Ye but it's noticeable bigger.

I was looking for something smaller : Cyrus Soundkey and Ultrasone Naos could be nice upgrade for higher end earphones. View attachment 4380714

Wysłane z mojego HTC U11 przy użyciu Tapatalka
[Google Pixel 2 XL Guides, News, & Discussion] automattic:
The sabaj DA2 is quite a bit smaller. With only slightly less sound quality. Pretty low power consumption as well.

I currently have a non functioning fiio e17K on the pixel 2. So both seem to be smaller in size.
[Google Pixel 2 XL Guides, News, & Discussion] jasenko:
Shure is joining the party

https://www.androidauthority.com/shure-usb-type-c-cable-828548/

https://www.theverge.com/2018/1/8/16863412/shure-usb-c-earbuds-cable-mmcx-ces-2018

I am wondering if this is just a glorified cable with the cheap DAC or a decent performer worth the asking price. Couldn't find any specs anywhere else.
[Google Pixel 2 XL Guides, News, & Discussion] bjrmd:
A closer look at Dac performance, current limitation as a concern.

There is always the concern that some simple electronic testing will miss some flaw in Dac/Amp audio performance quality. The simple RMAA test that GSMarena does is close to worthless in my opinion and others. One of the criticisms of that test is it does not look a something called current limitation. It turns out that an amp will need more current as the impedance of the headphones drop. So as I looked at low frequency voltage drop with full size cans in a previous post, I was not addressing this scenario.

A better test of Dac capability would be to look at the output behavior driving very low impedance headphones. I happen to have the Shure SE846 which has an impedance of only 4 ohms at 5Hhz. The following is a comparison of the distortion tracings using 2 different Google dongles, HTC, Dragonfly red and the generic realtec Dac dongle.

The tracings were done with the headphone cable coming off a Y splitter and the red channel has an SE425 transducer, green channel has the SE 846 (I just swapped IEM transducers on the same cable). This way we can see the comparison of impedance change, the SE 425 has an impedance near 30 at that frequency.

First off, distortion at a reasonable listening volume about 2.3 mV (remember this is a pure tone).

Dragonfly:

HTC:

Note the voltage drop in the green, this is cause by the low impedance SE846/high impedance HTC Dac "mismatch"

Realtec:

Google Dac (#2):

Google Dac (#1):

Now lets look at a calculated output of Spl 100 (at least with the SE 846:

DFR:

THD low impedance .22

THD high impedance .20

HTC:

THD low impedance .31

THD high impedance .21

Realtec:

THD low impedance .21

THD high impedance .19

Google Dac #2

THD low impedance .21

THD high impedance .19

Google Dac #1

THD low impedance >1

THD high impedance >1

Note the channel noise floor asymmetry as well as the overall noise floor rise.

This was repeatable on multiple plug and unplug, going between Dac#1 and #2.

Something to be aware of quality control wise.

My takeaway was that there does not seem to be a huge impact as far as current limitation at usual listening levels. Sure, some minor banding comes into play and the HTC has difficulty with very low impedances. But overall, not much difference between the cheap USB C dongles and the Dragonfly...again. But if you think the sound quality is poor with your Google Dac, you may want to try another unit, given the above quality variance possible.
[Google Pixel 2 XL Guides, News, & Discussion] sand_bit:
So from what I can gather, the realtek generic chips are all using the ALC4040 chipset

No datasheet is avalible yet, but here are the specs:

• Tensilica USB Audio Core inside
• Digital-to-Analog Converter with 100dBA SNR
• Analog-to-Digtia Converter with 94dBA SNRl
• Stereo digital microphone and analog microphone inputs
• Power management and enhanced power saving
• Single digital power supply from 1.6v to 3.6v.
• Small Package : QFN48 6mmx6mm, CSP28 4mmx3.5mm

Other sources online point to 192kHz 24bit decoding ability, and a max of 500mV output. Although some OEMs seem to reduce it to 48/96kHz.

Possible class G amp according to one source on Alibaba? Not sure.

while the HTC cable is using the CS42L42, according to the datasheet:

• No published SNR
• Mono analog microphone
• Class H amp

Shame that the Realtek chip is misconfigured by default in Android, and the HTC cable has such high impedence.

Skimming through Amazon/Alibaba/Taobao, there are a few more options with USB Type C:

"dodocool Hi-Res Audio Certified USB-C to 3.5mm Headphone Audio Jack Adapter DA134" ($36.99) from Amazon, looks really similar to the VELOUR gen 3

[IMG="dodocool"]https://img.tttcdn.com/product/xy/500/500/p/gu1/D/Y/DA134GY/DA134GY-1-ee91-0bMt.jpg[/IMG]

"VELOUR YW-300 gen 3" ($63.33 from Taobao + $15 same week shipping to the USA), Gen 1 used an AKM 4430, Gen 2 used an ESS 9018, and the cheapest Gen 3 used a ESS 9023P

[IMG="VELOUR"]http://i63.tinypic.com/300yvyw.jpg[/IMG]

USB-C version of the "GGMM A1" using a WM8533 ($54.15 + $15 shipping), but apparently China only for now

[IMG="A1"]http://i68.tinypic.com/2ild6pd.jpg[/IMG]

USB-C version of the "db magix ac3" ($80 + $15 shipping), no idea what DAC/AMP combo they are using, but they claim 384kHz/24bit capability, and a 122dB SNR. Seems to have come out very recently, as before they were lightning only

[IMG="AC3"]http://i64.tinypic.com/59wifs.png[/IMG]

"Nextdrive Spectra" is coming out with a USB Type-C version in Q3 2018, probably also around $99 as their current offerings. Some reviews have pointed to noise on low impedence IEMs

Fiio is also coming out with USB Type-C solutions sometime this year, probably in their Q series.

===

These are non-affliate links, and were found within a few minutes of searching. No idea if they are reliable or not.

There are also tons of people selling USB Type-C plugs with integrated DAC/AMPS on Taobao, mostly

• using the Realtek ALC4040 solution for around a $4 a pop (Upto 192k, 24bit. Current v93 firmware limits it to 48k, 16bit for compatibility. Maybe a custom flash is possible?)

• at least one using the Cirrus Audio DAC/AMP for around $20 (seriously overpriced) (Upto 192k, 32bit)

• and one probably being a Huawei OEM, and selling their solution for $6 (Upto 96k, 24bit).

anything beyond 48kHz, 24bit is fluff. Depending on the amp and the output impedence of these solutions, a DIY mmcx cable could be better quality than the shure one.
[Google Pixel 2 XL Guides, News, & Discussion] joedajoester:
What app are you using that allows you to see the audio hardware of the DAC and it allows you to set it to mono audio, dither and phase inversion? The one pictured here.

Thank you
[Google Pixel 2 XL Guides, News, & Discussion] bjrmd:
That's from Neutron player.
[Google Pixel 2 XL Guides, News, & Discussion] Dandroid16:
Anyone have any good news or found accessories which help with this issue in the past few weeks? I've kinda devoured this thread - fascinating stuff. I'm an unlucky VZW Pixel 2 owner and I just completely missed this audio issue in researching before I bought mine. Currently just using neutron and the stock DAC, and it's mostly ok, but I'm still disappointed in the whole thing, and even more so because I love the rest of the phone.

It goes back to a major annoyance I have with a lot of systems: I completely understand "lowest common denominator" - the average user just wants something that works without having to spend a day setting it up - but for the rest of us, I'd just love to have the option to dig in and tweak to my liking. Yeah I know, rooting and all that, but should we really have to do that for some of this stuff? Give me the darn option to be a picky SOB out of the box.

Meh. Lesson learned. My fault for not doing more research beforehand.
[Google Pixel 2 XL Guides, News, & Discussion] thesebastian:
My bose quiet comfort headphones don't work well with the Pixel stock typeC DAC (double tap Play/Pause should skip the song).

Anyone know if there is an alternative adapter that might support these headphones shortcuts?

Thanks !

Sent from my Pixel 2
[Google Pixel 2 XL Guides, News, & Discussion] BaronInkjet:
Anyone know anything about these? The older non-C version has good reviews.

https://hifimediy.com/tiny-type-c-dac
[Google Pixel 2 XL Guides, News, & Discussion] JeffBeasley:
Is the distortion from the stock adapter noticeable in a blind test? - 100 dB is still quite low...
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] VirusZer0:
Hello all!

I wanted to create a carrier specific thread for SamFail on the Note 8. Please use this thread to ask any questions you may have, or discuss root!

Please be friendly, helpful and courteous.

Please hit thanks to help me out, and hit thanks to anyone that helps you out!

Thank You!

-Tee Jay
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] 215Aphillyated:
Any roms being cooked up now that we have root?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] CreepyE:
I don't think so until we get our bootloader unlocked
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] ph33na:
A general question about root.. Does getting root means we can switch carrier (move to att/verizon) on tmobile locked phones?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] batsup606:
Can you elaborate by "switching carrier's?" Do you mean putting an att/Verizon sim into a T-Mobile phone? Or flashing a att/Verizon firmware to a T-Mobile phone?

If you're referring to the sim, then no. You'll have to either pay for a service to do it for you or wait for TMobile to unlock it for you.
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] ph33na:
Yes I mean using a SIM from a different provider.

Thanks for the info!
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] mrcartagena2000:
Google what Root means, It does not unlock SIM, it just allows for customization
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Jonathanpeyton:
and it allows you (the one plopping down a grand for this device) to remove all the CRAP that Samsung and your carrier thought it would be in THEIR best interest to put on your phone.
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] kitex2:
Since samfail doesnt trip knox (afaik) is it possible to unroot and use samsung pay again? Or is that gone regardless?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] VirusZer0:
If you flash back to stock, Samsung Pay works fine since we never tripped Knox.
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] piezan:
I'm rooted and trying to figure out how to add a data toggle. Any idea?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Jonathanpeyton:
what about Tasker and Secure Settings?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] piezan:
Thanks for the reply, I have tried secure settings and it did not work. I am unsure how to make Tasker add a toggle. I remember the note 5 we had to add MobileData line some where in csc or something.
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Nektopoli:
I thought T-Mobo's bootloaders were unlocked by default (as is the T-Mobo's Note 5)?

NP
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Jonathanpeyton:
Piezan,sorry I was vague.Secure Settings has a Tasker plugin that under the right conditions allows you to either build a Tasker Profile ( voice,geofence or whatever ) to toggle Data or straight up make a widget for it...I remember on my Nexus 5 I had a Tasker Profile that as soon as I was about 50 feet from the house I would enter an AutoLocation Geofence I had set (Home) thus toggling my Data in favor of the home WiFi. The main reason I suggested it is that it requires root (for the SS part).
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] xManMythLegend:
I guess I'll ask here.

When rooted is the 80% limit ,actual or perceived ? I keep reading it's still 100pct just reporting 80.

What exactly breaks or stops working. I know about Android and Samsung pay. But I've read Samsung health which is mind boggling that root would have anything to do with a heart rate sensor.

Lastly my main desire is for one click video download ,and Instagram downloads of stories or vids etc. These are Xposed dependent. Would I be able to use Xposed with samfail. (If not any non root alternatives?)
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Apo11on:
Fastboot and Download mode

I'm on rooted note 8 and booting into Download mode every time to charge the phone to 100% instead of 80%. Using hardware keys to get back to OS every time is uncomfortable and takes too long. Easiest way I know is to do "fastboot reboot" from PC, while the phone connected via USB. However, I cant get my PC to recognize the phone while it is in Download mode - "fastboot devices" lists nothing, and if I try "fastboot reboot" the command prompt just sits on < waiting for device >.

Does anyone know what note 8 specific drivers for Windows 10 x64 need to be installed, or what else to do to make fastboot recognize connected phone in Download mode?
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] jameslapc2:
I know the same feeling with the fastboot I can't seem to figure it out. I usually use Minimal ADB and Fastboot and it's worked on most every modern droid I've ever owned I don't see why the Note 8 is so finicky with it. I had no problems with it and my V20.
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] Eudeferrer:
I know that these things take time, but does anyone have any idea if anyone is working on root for the new updated bootloader? I know that the new bootloader that came with last update broke root but I have not heard or seen anything. I haven't updated but would like to know. ????
[T-Mobile Samsung Galaxy Note 8 Questions & Answers] louforgiveno:
[MENTION=4591212]me2151[/MENTION] mentioned he was looking into a new method as the update started to roll out.....so yes it's being looked into.

Sent from my God Mode 8
[Samsung Galaxy Note 8 Accessories] Snowleopard1900:
I heard that even though the promo is the 128gb card, are they actually sending out 256gb cards instead with the wireless charger?
[Samsung Galaxy Note 8 Accessories] WinDroidGuy:
They did for early Note 7 orders, the 128GB is the official promotion. I personally got the 256GB microSD
[Samsung Galaxy Note 8 Accessories] NITRO_2:
I got the 128 GB SD card
[Samsung Galaxy Note 8 Accessories] Kawaisa:
No longer sending out 256. It's 128 as advertised.
[Samsung Galaxy Note 8 Accessories] darkkterror:
I just got my promotion items a few days ago and I received a 128GB card.
[Samsung Galaxy Note 8 Accessories] ClevelandWheeler:
128 gb but I also have the 256 gb from the note7 promotion.
[Google Pixel Questions & Answers] matrix0886:
I had gotten a phone call from my boss but was driving so I didn't answer. I never saw a voicemail notification so I figured it wasn't important. I got to work the next day and she asked if I had listened to the voicemail. I said no because I never got a notification that she left one. So I opened up my phone and it turns out I had 9 voicemails dating back to mid September. Just had my wife call me and leave me a voicemail. Never got a notification. Opened my voicemail, and there was her message.

Has anybody else had this issue?
[Google Pixel Questions & Answers] Smithy6682:
I've recently had the same issue. The notification always used to show but since around September my voicemail notification no longer appears. I'm unsure whether this coincides with the update to android 8.0 though.
[Google Pixel Questions & Answers] 85gallon:
I am having the issue as well, but I have it isolated to a third party dialer I use. If I unistall it, the missed call and voicemail icons work fine.

I had previously set the downloaded dialer to leave notifications alone but for some reason it stops the voicmail icon.
[Google Pixel 2 Questions & Answers] Etheralrealm:
I know, I know, WHY DID I BUY THE VERIZON PIXEL 2? Well, i actually got it as a gift from my parents, they got the BestBuy 100$ off so they thought it was a good deal. I personally had a Nexus 6P but my battery was completely dying and i bought it from newegg so i cant rma it. I got it today and i love it, but its so weird without the ability to use still like greenify, adblock, titanium backup, etc. So is there a guess of when there will be a bootloader unlock if there will be one?
[Google Pixel 2 Questions & Answers] mtoomey79:
Was there ever an unlock for the Verizon Pixel? Therein lies your answer.
[Google Pixel 2 Questions & Answers] aryathecat:
Not sure if joking/sarcasm, but there was an unlock for the Pixel but it was discovered by accident. Definitely no guarantee for it this time around.
[Google Pixel 2 Questions & Answers] bobby janow:
There is a guarantee. It won't happen.
[Google Pixel 2 Questions & Answers] TCPDump:
That's a silly assumption...
[Google Pixel 2 Questions & Answers] Etheralrealm:
I guess we can only hope the same thing happens. Im going to keep it for updating for as long as I can.
[Google Pixel 2 Questions & Answers] bobby janow:
What do you mean? Why would you not update? You will never get root on that device so either sell it or live with it. Not updating will only make your device less secure. Besides, you'll need to update to the November patch in order to fix the Krack wifi exploit. This is not a silly assumption, this is fact. I'd be more than happy to eat my words at some point but for now the sugar is in the back of the cabinet.

All we need is a bounty thread at this point. You know that's next right? This way everyone complaining about Verizon can go to one place to rant and not all over the boards.
[Google Pixel 2 Questions & Answers] Born<ICs:
.

Your choice is, buy a google version then sell the Vz one.
[Google Pixel 2 Questions & Answers] bobby janow:
Agreed. But if he got it as a gift then his options might be limited if it was not bought outright. I'd just say live with it, most people aren't rooting any longer anyway. There is no root yet although that might be coming when images are released. Bootloader unlock, however, on the Verizon Pixels is not going to happen anytime soon, if ever. And to the OP, [MENTION=6398417]Etheralrealm[/MENTION] you don't need TiB if you're not flashing roms really. Greenify is a waste with this device and Adaway has some VPN alternatives. I'd just enjoy the device and forget about messing with it.
[Google Pixel 2 Questions & Answers] Etheralrealm:
Yeah, it was bought on a payment plan so my options with selling it are kind of limited.
[Google Pixel 2 Questions & Answers] Etheralrealm:
I brought it back to Verizon and since it was only a few days they actually were willing to reverse my purchase. I ordered a 6P battery kit and it is working great again, hope it lasts!
[Nook Color Q&A, Help & Troubleshooting] crazynapkinman:
[youtube]fh4siZ7MfCM[/youtube]

Description:

in the video I'm showing you what I think is a boot loop or stuck animation where I've gone from a custom rom to stock 1.4.1 using a SD bootable ClockworkMod.

I flashed stock ROM after wiping system, data, and cache.

I was on emmc installed CM10 with u Boot and ClockworkMod recovery.

Will post more as I think of other things you might need to know in the comments below
[Google Pixel 2 XL Questions & Answers] ElementalWindX:
What is the preferred free way to move everything from my S6 to my P2XL? I tried the move option during the setup and it would not connect with the cables and instead tried to grab everything from the cloud, which I do not have backed up to the cloud.
[Google Pixel 2 XL Questions & Answers] clapper66:
If all you need is contacts, photos and videos you could use copy my data it uses wifi to transfer everything from both phones. https://play.google.com/store/apps/details?id=com.mediamushroom.copymydata

You just need to install the app on both devices
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] iykeDROID™:
screenshots
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] iykeDROID™:
Reserved!!
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] iykeDROID™:
Reserved!!!
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] TheHitMan:
another new custom roms for moto e4 woods :)

Thanks ! you are great [MENTION=6347235]iykeDROID™[/MENTION]
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] rualrual:
Working Model xt1763?????????
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] alexz117:
chipset confused

i have a e4 wood but my chipset is mt6735is this possible or what i can do to get twrp and root for my device :rolleyes: help me please
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] TheHitMan:
it is the platform mt6735 and the soc is (system on chip) mt6737M

---------- Post added at 08:29 AM ---------- Previous post was at 08:27 AM ----------

xt1760 & xt1762

---------- Post added at 08:29 AM ---------- Previous post was at 08:29 AM ----------

try this rom if you have backup of your device stock rom.
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] iykeDROID™:
Thanks u all.

BTW, someone tried ?

any bug found so far ?

Please lemme know.
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] iykeDROID™:
It's a pleasure to help
[Moto E4 ROMs, Kernels, Recoveries, & Other Develop] johamario:
thanks I have run on motorcycle e4 xt1764 I will be testing it;)