Database Develop

Audio anyone? Bluetooth, USB...

Running CM7 in EMMC nightly 177, all is well. Had the nook about a month. Amazed at what a cool little tablet this is after reflashing. My only lament is I wish the audio out the headset jack was at least decent. I do understand, this was built to be a reader, not an audio-anything. And I'm thinking more and more that's just how it is, forget Pandora, etc.
But I still have scant hopes of alternatives. I've read about host mode in Nook Tweaks, and that folks have at least powered or maybe recognized a FiiO E7 headphone amp/DAC, but I doubt that I can use any app to play high quality audio thru the usb....yet.
What about Bluetooth? Does the Audio sound any better?
First post, hope it gets some interest!

I can never get the audio out via bluetooth.
I've tried 3 different bluetooth headsets.
All have a common issue "paired but not connected"
There were a few threads about it, but I couldn't just get it through.
Some other members do have no problem though.

votinh said:
I can never get the audio out via bluetooth.
I've tried 3 different bluetooth headsets.
All have a common issue "paired but not connected"
There were a few threads about it, but I couldn't just get it through.
Some other members do have no problem though.
Click to expand...
Click to collapse
I paired a Samsung HM3500 ($6 after rebate) which is an bluetooth
earpiece with a usb connection to stereo in-ear phones with a microphone.
Worked great until the battery went low, then the CM7 nook started
freezing the audio as the connection was lost and remade. This is on
a Color Nook booting CM7 nightly 177 off a SanDisk 4Gb class 4 uSD disk.

I have a generic bestbuy BT headset and the sound is great out of it! Not sure why I was able to get the sound, it's been working for me since nightly 38 or so, but I have NOT tried any of the recent nightlies or the RC for 7.1. As for the volume level, after I got Volume++ I thought it got pretty good sound. Of course other devices sound better, but like you said it' kind of a built in problem with the nook.
I did buy a Plantronics BT headset yesterday and haven't tried it with the nook. I'll try it later and post here if it works,

For some reason, I thought it's brand-dependent.
Pls try your Plantronics and let me know how it goes.
I just tried the Plantronics Voyager 520 2 days ago, didn't work

22jjones said:
Running CM7 in EMMC nightly 177, all is well. Had the nook about a month. Amazed at what a cool little tablet this is after reflashing. My only lament is I wish the audio out the headset jack was at least decent. I do understand, this was built to be a reader, not an audio-anything. And I'm thinking more and more that's just how it is, forget Pandora, etc.
But I still have scant hopes of alternatives. I've read about host mode in Nook Tweaks, and that folks have at least powered or maybe recognized a FiiO E7 headphone amp/DAC, but I doubt that I can use any app to play high quality audio thru the usb....yet.
What about Bluetooth? Does the Audio sound any better?
First post, hope it gets some interest!
Click to expand...
Click to collapse
I'm the one that connected the Fiio E7+L7 and another home dac
I tested the E7+L7 in my car and in first impression it sounded almost as good as my E-MU 0404 PCI card I have on my CAR-PC ( will do extensive testing when I'll install the nook )
You want better quality? get a better DAC
I don't see why BT will give better SQ , I think it will be way worse
As far as apps , PowerAmp seems to be doing it's job and playing FLAC's without any issues so I don't see the problem here

It's hard to even talk about audio quality (or video quality, food quality, film quality, book quality) without getting a baseline for what a person considers satisfactory, unsatisfactory, great or awful. Some people--possibly most people--are all but oblivious to most of their senses, but then there are some few aficionados of anything and everything under the sun.
I'm not much of an audiophile--Apple stock earbuds do not meet my standards, but most $20 in-ear phones (Skull Candy, Sony, loving my JVC Air Cushions) + iPod + mp3s do meet my standards. From that perspective, I find that adjusting DAC and headphone gain in Nook Tweaks brings the NC up to satisfactory performance for headphones (I can get reasonable fidelity at minor-hearing-damage volume levles), but still weak for line-out.
I've really used the NC a lot less for music than audiobooks, though, where sound quality is less of a concern.

Plantronics 320 does not connect.

Thanks for replies! I'm going to try PowerAmp and flacs. I guess one of my let downs was streaming Pandora or Naptser, but I realize now that even with wifi these are lower bit rate than from a PC. However, with Nook Tweaks and DSP Manager, I can get to a point that is ok.

You might want to stick to just Nook Tweaks for boosting gain. DSP Manager is still useful for equalizing, but layering PowerAmp's boost on top of DSP's boost on top of Nook Tweaks' boost may not be a good idea.

@Taosaur, I tried PowerAmp with flac and ape files last night, and ended up doing exactly as you recommended. DSP ended up turned off. This was my first look at PowerAmp, pretty sweet app. So I had just a little dac and headset gain increase on nook tweaks, and pretty high pre-amp along with eq in PowerAmp. Using a decent set of noise-cancelling buds from Audio Technica. Result is pretty nice! I was looping one song for about an hour while I tried different settings, Pink Floyd - Brain Damage. Now I can't get it out of my head. Not such a bad thing..

**New Info*** I went ahead and bought a refurb FiiO E7 for 69 bux. Charged it up and plugged it in the Nook usb and Viola! Pretty sweet improvement over headphone jack. So, yes, you get a USB DAC, plug it in, and usb audio out comes to life. The FiiO E7 is ideal for this because it is a DAC and Amp in one small package. So virtually no annoying hiss, plenty of gain without distortion, much fuller overall sound, and way more total volume than you can handle. Only prob is at times the audio gets little skips/clicks when the Nook display is busy, I think. Either that or my sd card reading is causing it. I'm on a 16GB class 10, and I read somewhere the higher class cards can be troublesome compared to class 4's.
To recap setup, CM7 recent nightly+Nook Tweaks USB Host Mode.

I'm guessing you need to route that through a powered hub, right? Does it work if the hub is not plugged into the wall?
If you haven't moved any apps to SD and aren't running your OS from SD, I'd be surprised if it's causing you any problems.

No hub! The E7 has it's own battery power, lasts forever. Just a cable with an adapter. I'm running in emmc, build 206. I'll check sdcard, i think i may have put an app on it at one point.

usb "sound cards"
There are a whole raft of cheap usb sound interfaces - equivalent to a sound card on a desktop machine. I got one on ebay for 7$, stereo headphone output is pretty good with the nook. There are 5.1 and 7.1 devices advertised too.
Unfortunately, the sample rate used for the mic differs from that used for playback, so whatever I record via mic plays back in very slo-mo.
I understand that somebody has found a device whose mic input works with the nook, but I had no luck finding exactly what he described.
I'm very interested in the voice input side, both for speech-to-text and for comms, especially skype. Anybody have any new info?

Is there a way to use the Fiio e7 and continue to power the Nook using the stock USB cable?
I am using the NC as a headunit in my car and i would love to have the e7 as my DAC, but I would need to have continuous power for the NC.
Any Ideas?

I can only suggest you plug the NC in when you park the car. I'd say an hour or two per day would be MORE than sufficient to run off the battery the rest of the time. Inconvenient yes but I think all tablets will suffer from this problem (sucky internal codecs and only one power connection which is also shared with any usb host).

22jjones said:
No hub! The E7 has it's own battery power, lasts forever. Just a cable with an adapter. I'm running in emmc, build 206. I'll check sdcard, i think i may have put an app on it at one point.
Click to expand...
Click to collapse
Excuse my ignorance...what kind of adapter do you need for this?
Thanks!

Double C said:
Excuse my ignorance...what kind of adapter do you need for this?
Thanks!
Click to expand...
Click to collapse
Either microUSB male to full USB female to plug straight into the NC, or full USB female-to-female to put on the end of the cord.

Double C said:
Excuse my ignorance...what kind of adapter do you need for this?
Thanks!
Click to expand...
Click to collapse
In my case, the FiiO has a mini usb port, and i use adapter on the FiiO. So I have FiiO > mini usb to full usb female adapter > full male to micro usb cable > Nook.

[Q] USB Audio Stream Pops & Clicks

Hi All,
I have an AT&T Nexus 6 and I am trying to stream USB audio out to my car stereo. When doing so I am hearing clicking and popping in the audio. I thought it was possibly a ROM/kernel issue but I am fully back to stock & locked and the problem still exists. Audio via mini stereo jack (aux) works fine of course, as does sound coming out of the phone's speakers, headphones, etc. I have tested 2 other android devices (Nexus 4 and Samsung Nexus 10) and USB audio is working perfectly fine in my car.
If anyone has any guidance on how to troubleshoot this it would be great. This is strange to me as USB audio out was added as a software update, so I find it very odd that it works on my older devices and but not the N6. If I can't get this figured out I will have to schedule an appointment at an AT&T warranty center to likely exchange my 35-day-old phone for a fecking refurb
Thanks for any help guys, cheers!

I RMA'd my Nexus 6 and the replacement behaves the exact same way. Other non-Nexus 6 devices tested work just fine.
Has anyone actually used streaming USB audio other than me?

rbross3030 said:
I RMA'd my Nexus 6 and the replacement behaves the exact same way. Other non-Nexus 6 devices tested work just fine.
Has anyone actually used streaming USB audio other than me?
Click to expand...
Click to collapse
What app are you using to stream? I tried, but do t know if my radio wont accept it or not. I know I can't read movies from my phone or flash drive.
Sent from my Nexus 6

Casper34 said:
What app are you using to stream? I tried, but do t know if my radio wont accept it or not. I know I can't read movies from my phone or flash drive.
Click to expand...
Click to collapse
The idea behind USB audio streaming is that you don't need to use an app. The device streams any and all audio out of the phone via USB rather than out of the speakers. This means that you can use Spotify, Youtube, Pandora, PlayerPro, etc. while connected to your car stereo via USB and have the audio in your phone played through your car speakers in lossless digital. This is a feature that was introduced in Android 4.4 but seemingly is saught out by nobody but me.
Prior to USB audio out, these were common options/solutions, all with drawbacks:
1. Plug into the headphone jack which is an analog signal prone to noise, interference, and muddy EQ.
2. Plug into USB and Android will automatically mount your phones sdcard partition the same way as USB thumb drive. This only works for playing media files that are saved directly to the phone. All other sounds/apps do not work through as the phone's audio hardware is not being used. This means no Pandora, Spotify, etc. and no controlling music from the phone. Casper, your radio is probably trying to mount your N6 this way – most car stereos do and are not expecting have a device connected that is outputting its own hardware-driven digital audio stream.
3. Bluetooth. This was the best solution as it uses the phones audio hardware and thus all audio is output the same way as the new USB out feature. The drawback to this is that bluetooth uses lossy-compression and so is lower fidelity than option #2, though A2DP has made quality far better than it once was.
If you can't already tell, I'm sort of a fidelity nazi and this is why I'm so desperate to find a solution to this issue at hand with the Nexus 6 USB audio out that noone seems to know exists.

Any update on this? I just got my Project Fi Nexus 6 and I am regretting not doing more research on the USB streaming in the car. The iPhone 6 worked flawlessly and I could change songs with my car (I just lacked good service). The car usb won't even recognize my google play albums downloaded to my phone BUT it will pull up my zedge ringtones. Every time I try to fool around with it, it just keeps looping my Mario ringtone through my car speakers lol. But seriously, any suggestions. I am so desperate.

ericajm85 said:
Any update on this? I just got my Project Fi Nexus 6 and I am regretting not doing more research on the USB streaming in the car. The iPhone 6 worked flawlessly and I could change songs with my car (I just lacked good service). The car usb won't even recognize my google play albums downloaded to my phone BUT it will pull up my zedge ringtones. Every time I try to fool around with it, it just keeps looping my Mario ringtone through my car speakers lol. But seriously, any suggestions. I am so desperate.
Click to expand...
Click to collapse
I gave up and went with using bluetooth. Cost me another $120 in bull**** hardware that Grom Audio sells to make this "upgrade" possible. Quality is **** compared to what it could've been as well... sigh... first world problems

I have a Grom USB2 and a Galaxy S4 that I just upgraded from 4.4.1 to 5.0.1 (Goldeneye ROM). I successfully streamed USB with KitKat (Grom has a configure file that enables their unit to do this) but have been unable to do the same thing with Lollipop. I did the *#0808# thing and tried several settings but nothing has worked. Any ideas?

Laptop as bluetooth speakers

I just have a quick question.. and hopefully the answer is quick as well..
I have a Galaxy Note 4 and a Dell XPS 13 early 2015 model. Both have bluetooth so I thought I would use the laptop speakers as speakers for the note 4, but when I paired the devices up, there's no settings for audio...
All I can do is transfer files and like remotely control the note 4 with my computer.
Does anyone have a solution to this? Based on the google research I did regarding my problem, it seems like it is possible, and rather simple. Am I missing a driver or something?
Any help would be appreciated. Thanks!!

tried the same thing with my M4800 and nothing worked. I guess the laptop is missing the profile to act as a bluetooth speaker.

USB-C to 3.5mm jack problem

Hello, I got my P20 Pro 2 days ago. So, here's my problem. I got a pair of HyperX Cloud II and I want to use them with the phone. When I plug them with the included dongle, the headset icon shows for a second then disappears from the notifications bar. I should mention the fact that I can use the included earphones and some other casual earphones. The interesting fact is that I can use my Cloud II headset without any problem(other than the fact that the volume is quite low) on my mate's Xiaomi Mi 6 with the same dongle. What do you think, is there anything I can do about it, or should I go wireless once and for all?

go wireless if you have the budget, for me i still prefer wired due to i'm too lazy to charge it, i've used the dongle with my MI in-ear pro, and so far it works as intended

I found the headset wasn't always detected and I had to add a setting in developer settings
I have 'Disable USB Audio Routing' set to off and 'Always prompt when connecting to USB' set to off.

Chris M. said:
Hello, I got my P20 Pro 2 days ago. So, here's my problem. I got a pair of HyperX Cloud II and I want to use them with the phone. When I plug them with the included dongle, the headset icon shows for a second then disappears from the notifications bar. I should mention the fact that I can use the included earphones and some other casual earphones. The interesting fact is that I can use my Cloud II headset without any problem(other than the fact that the volume is quite low) on my mate's Xiaomi Mi 6 with the same dongle. What do you think, is there anything I can do about it, or should I go wireless once and for all?
Click to expand...
Click to collapse
I have the Same problem with the same headset!

cwjdarby said:
I have the Same problem with the same headset!
Click to expand...
Click to collapse
Turns out you can use this headset with the phone, but only if you plug in the microphone, and that's a huge problem for me, as I used to casually wear them wherever I'd go. Since I bought the phone, I have switched to some in-ear headphones and I learned to live with this.

Will it be the same with all adapters?
Chris M. said:
Turns out you can use this headset with the phone, but only if you plug in the microphone, and that's a huge problem for me, as I used to casually wear them wherever I'd go. Since I bought the phone, I have switched to some in-ear headphones and I learned to live with this.
Click to expand...
Click to collapse
Think other adapters will work with the hx cloud (no mic)?
Cheers

Solution
Hello everybody
I have the same problem with my hyperX cloud 2. To make it works you only have to plug the microphone in headset and after that plug it in the phone.
If you plug out the mic, headset will not be recognized again.
Hope it will be helpful for you. Cya

Prome__. said:
Think other adapters will work with the hx cloud (no mic)?
Cheers
Click to expand...
Click to collapse
I have tried with adapters from: Mi 6, Pixel 2, U11. It has to do with the OS, as a matter of fact, they worked just fine without the mic plugged in for the other phones.

Clarification
Chris M. said:
I have tried with adapters from: Mi 6, Pixel 2, U11. It has to do with the OS, as a matter of fact, they worked just fine without the mic plugged in for the other phones.
Click to expand...
Click to collapse
But without the mic, with the other (not stock huawei) adapters plugged in to the p20 pro, it still didn't work?
Just making sure it's not the adapter.
Thanks

Prome__. said:
But without the mic, with the other (not stock huawei) adapters plugged in to the p20 pro, it still didn't work?
Just making sure it's not the adapter.
Thanks
Click to expand...
Click to collapse
Nope, the P20 Pro wouldn't detect the headset.

P20 Pro does not detect my headset or dongle
I have this problem and until now I cant find a solution. Phone is charging with any charger though and it just happened all of a sudden. I already tried doing a hard reset but no good. I am using the Europe version. Single Sim GPU Turbo updated.

Can confirm plugging the mic into the headset solves the issue.

Same headset here. If you don't want to use them whit the mic in, use Lesser Audioswitch app. You can choose the audio output source with the app.
Work for me.
Also, don't forget to manually switch back to speaker after you unplug your headset.

Has anybody discovered a fix for this yet where you don't have to plug in the mic? I just got a P20 pro and it is disappointing that I am unable to use my headset with it.

HUawei P20 Pro not able to detect headphones?
I've been using Apple headphones connected to the Huawei USB-C adapter on my Huawei P20 Pro....it was working fine for at least 5 months.
But last week when I plug in my headphones the icon shows up for a second, then disconnects in a few seconds. Now it's a consistent problem.
Has this happened to any of you? I don't know if it's the adapter or my phone...
Thanks in advance to anyone who can help!

Hello enable dev options / tap 5x in About phone-Built number
Than in dev options enable Always prompt when connecting to USB.
Hope this helps I got mine working

USB Audio out?

Hi guys, I've noticed that when I connect my DAC to the type-c port on phone there's no audio.
Is there no sound routing through this interface?
Can it be enabled?
Thanks

I've noticed same thing.

niaboc79 said:
I've noticed same thing.
Click to expand...
Click to collapse
Have you checked the "USB Audio Routing" in Developer Option menu?

samteeee said:
Have you checked the "USB Audio Routing" in Developer Option menu?
Click to expand...
Click to collapse
Yes I did. We should contact Sony support, it's a small issue, an update will fix it easely.

My Meizu USB audio thingy works without any problems.

Sho-Bud said:
My Meizu USB audio thingy works without any problems.
Click to expand...
Click to collapse
I've tested only with Sony DAC from my Xperia XZ2. Maybe that one isn't compatible.

Maybe the Sony is passive, in that it passes through audio from the phones amp. The Meizu is active, it has its own DAC and Amp built in. Just a wild guess. Maybe the Xperia 1 II does not pass on audio from its built-in amp through the usb connection

USB-C audio works fine with the cable from my old Pixel 2XL. No settings needed.

I've tested using a Hidiz Sonata USB device and the USB audio player pro app and it'w working fine here.

XD05 Plus not connecting.
Doesn't seem to work with Xduoo XD05 Plus
The volume/power from the phone is barely okay for my IEMs, but it can't drive any of my headphones.
This was supposed to be an upgrade from my LGV30 (works fine with XD05) , unfortunately it's rather looking like I should have gone for a V50 or V60 instead.
I have checked in the developer options and it seems like USB Audio Routing is on by default.
Any recommendations to get it working would be appreciated.
I have just tested with my Dragonfly Black and that seems okay. At least it has sufficient power to drive most of my headphones to a reasonable volume. Still very keen to get it working with the Xduoo if I could though.