Choosing audio output - Nexus Q Q&A, Help & Troubleshooting

Is the audio output entirely determined by the ROM one is running?
I ran cm-10.1-20130617-UNOFFICIAL-steelhead_TAS5713.zip and the amp worked.
Then I tried cm-10.1.3RC2 and HDMI worked.
Is there a way to switch? Are there CM Roms that I can choose from to use the amp?
Thanks.

prioret said:
Is the audio output entirely determined by the ROM one is running?
I ran cm-10.1-20130617-UNOFFICIAL-steelhead_TAS5713.zip and the amp worked.
Then I tried cm-10.1.3RC2 and HDMI worked.
Is there a way to switch? Are there CM Roms that I can choose from to use the amp?
Thanks.
Click to expand...
Click to collapse
Google did some fancy stuff to get audio working in the stock rom. The hdmi and optical outputs accept one baud, the analog accepts another. There are 2 builds of cm 10.2 thusly. One for hdmi/opt the other for analog output(also known as the TAS)

Related

[Q] Audio through HDMI?

This could be due to the ROM I'm using (Primee-P9 David's mod), but I tried using Rockplayer Lite to watch a video on my TV through HDMI and there was no Audio. Is there a setting I'm missing? Thanks in advance.
chairhome said:
This could be due to the ROM I'm using (Primee-P9 David's mod), but I tried using Rockplayer Lite to watch a video on my TV through HDMI and there was no Audio. Is there a setting I'm missing? Thanks in advance.
Click to expand...
Click to collapse
Perhaps there is a setting you are missing (I found rockplayer to be the most problematic player possible for the a500 with the exception of the crappy Acer apps that are preinstalled) - but HDMI carries audio and video only on receivers called HDMI switching or HDMI repeater, from my experience.
Try MX player, and if that fails, try a alternative receiver so we can figure out the source of your problem.
entropy.of.avarice said:
Perhaps there is a setting you are missing (I found rockplayer to be the most problematic player possible for the a500 with the exception of the crappy Acer apps that are preinstalled) - but HDMI carries audio and video only on receivers called HDMI switching or HDMI repeater, from my experience.
Try MX player, and if that fails, try a alternative receiver so we can figure out the source of your problem.
Click to expand...
Click to collapse
Thanks, I should've tried different apps to see if it was my tablet or the app. It won't be the problem of the receiver, as I'm plugging it straight into a TV :-D. Hoping its not an HDMI cable problem, I just got this cable from monoprice and I don't have another micro HDMI device to check it with. Thanks!
chairhome said:
Thanks, I should've tried different apps to see if it was my tablet or the app. It won't be the problem of the receiver, as I'm plugging it straight into a TV :-D. Hoping its not an HDMI cable problem, I just got this cable from monoprice and I don't have another micro HDMI device to check it with. Thanks!
Click to expand...
Click to collapse
But it might be the problem of the receiver - your TV is acting as a decoder/receiver and depending on what company produced it and what standards it supports......
http://en.wikipedia.org/wiki/HDMI
Don't just assume a bad cable before trying a alternative receiver (TV) - plug it into a friends system with known good HDMI and see if that works.
Best of luck, hope you get it working
Well, I've used this HDMI port many times before and it works fine, which is why I was saying that the cable has a possibility of it being bad, but I'll try it on another TV as well just in case.
chairhome said:
Well, I've used this HDMI port many times before and it works fine, which is why I was saying that the cable has a possibility of it being bad, but I'll try it on another TV as well just in case.
Click to expand...
Click to collapse
Always a good idea - that way you know for sure if you have a bad cable.

sound from hdmi to rca

Hello
How to pick up the hdmi sound from acer to connect to a hifi ampli wich have no hdmi input ?
I tried that: http://www.goyona.com/convertisseur_video_vers_dvi1.htm
CV-401H is the model but doesn't work
TIA
z-control said:
Hello
How to pick up the hdmi sound from acer to connect to a hifi ampli wich have no hdmi input ?
I tried that: http://www.goyona.com/convertisseur_video_vers_dvi1.htm
CV-401H is the model but doesn't work
TIA
Click to expand...
Click to collapse
Try this instead.
yes but would prefer to keep my stereo ampli hifi
z-control said:
yes but would prefer to keep my stereo ampli hifi
Click to expand...
Click to collapse
Yes, but if you have no HDMI inputs, it's a dinosaur
I never seen an ampli hifi with hdmi !!!
an ampli HC yes but not ampli hihi
z-control said:
Hello
How to pick up the hdmi sound from acer to connect to a hifi ampli wich have no hdmi input ?
I tried that: http://www.goyona.com/convertisseur_video_vers_dvi1.htm
CV-401H is the model but doesn't work
TIA
Click to expand...
Click to collapse
I believe you problem is that the 401 still output digital (spdif). You are looming for the same connector but stereo, right?
Sent from my A500 using xda premium
No, the 401 have not numeric outpout, only rca, neverwhere, i tested it and doesn't work with tablet
i will trie an other model ; http://www.goyona.com/extracteur audio hdmi.htm
wait and see
I think that this should work, especially if you don't need to worry about the video side and just use it for audio.
http://www.amazon.com/HDMI-RCA-component-AV-Converter/dp/B002WBOQPU
thanks, i 'll take a look about this !

[Q] Audio over USB with Android 5.0

I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?
kerb12 said:
I know there have been threads in the past about the Nexus 4 not being able to support outputting audio over USB, but now that stock Android 5.0 supports it, can the Nexus 4 do it?
I'm using the factory 5.0 images and I have an external DAC/amp that I want to use (Fiio e18) that's made for Android, but nothing seems to happen when I hook it up. I've read posts that the Nexus 4 physically can't output power over it's USB, which is fine because the DAC has it's own battery source... but can it at least output the audio?
I started with the stock kernel, but also tried the latest Franco kernel (r214) with no luck. Also, I verified the DAC itself works by using it with my laptop. I'm hoping there's just some hidden setting or patch I need to apply to get it to work... Has anyone else tried this yet?
Click to expand...
Click to collapse
pls report your findings if you can make it happened!!
i can not help you with your problem but it is something that interest me too. i only can suggest to use a more feature enabled kernel like unleashed or hells core
pls report your findings if you make it work mate!
That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.
kerb12 said:
That's a good idea... unfortunately no dice with the latest unleashed kernel either (98u). It claims it supports USB OTG, so I was hoping that would be enough, but maybe there's more that needs to be done.
Click to expand...
Click to collapse
one thing that you might not know. nexus 4 does support usb otg BUT cannot provide electricity via usb. you must use a y cable and provide external power so you it might not be possible to use your DAC!
Thanks, I did know that, but I figured that since my DAC is self-powered (it has its own battery) that I wouldn't need to do the y-cable trick.
Worth a try though, I'm going to order one and see if I can at least get regular USB OTG to work. Maybe once that's working it'll be easier to troubleshoot the audio.
Just wanted to update, I got the Y OTG cable so I could have external power at the same time... but still doesn't work. This is with stock 5.0.1 and unleashed 98u kernel. I went into Synapse and enabled the OTG setting as well. DAC doesn't get recognized, and I tried a few free apps that are supposed to do OTG checks, but they all came back that nothing is attached.
Usb otg is one thing and uab audio out is another. USB otg means that you can connect an USB stick or external hdd to your phone ( with or without external power) USB AUDIO OUT need special circuits from your internal Dac to the USB. If those are not implemented you will never have USB audio out. This is something witch depends on the manufacturer ( S4 mini with snapdragon 400 don't work with USB otg or USB audio out, htc mini 2 M8 works perfectly with fiio E18 as a audio surce for external DAC). So if you really need USB audio out please next time do your homework and read before buying a phone. P.S. Htc mini 2 M8 has the best audio ever and really you don't need an external dac. If you need more power just use your fiio as an amplifier with your phone.
Maybe you could find for your phone a apecial kernel modified for better audio experience. Flash that and use your headphones.
Good luck!
Thanks, yeah I don't need usb audio out... I've had the phone for over 2 years and I still really like it, so no plans on getting a new one just for this.
I believe it's physically possible to do audio out on the N4... I've seen random posts about people getting it to work, but they've all been on custom ROM's based on 4.4.x stuff. I'd really rather not try to reproduce that since 5.0 is running so much better on my phone, and I was just hoping with the new native Android support it might work out of the box. But alas, it looks like google locked down 5.0 on the N4 - even USB OTG storage doesn't work unless you put a custom kernel like unleashed on.
In the meantime, I've just been using it as a headphone amp like you suggest and it's a big improvement.

Any way to use optical out surround sound with the nvidia shield?

Will a usb to optical cable work? If not any other way? Thanks
I have an old samsung surround receiver that only offers 5.1 optical out
Like this
http://www.amazon.com/HiFimeDIY-Sabre-U2-Asynchronous-optical/dp/B00EDHC5YU
or this?
http://www.amazon.com/HiFiMeDIY-Digital-Analog-Converter-Optical/dp/B00AOH5JTQ
Yes will the Nvidia shield pass the audio through USB?
It's full android. I saw reviews of same using it on android, and I use a DAC (Digital to Analog Convertor) on my shield. I personally have one that's micro usb male to 3.5mm and it works flawlessly. Imediately recoganized, no configuration. I got that edition as I only have 2.1 audio and it was a free extra usb port, plus it works on my phone too. Should work just fine.
What I am looking to do is use one of the usb ports with a converter to analog.
mdwright1031 said:
What I am looking to do is use one of the usb ports with a converter to analog.
Click to expand...
Click to collapse
Like a headphone jack? You originally said optical, so I wasn't sure. What type of sound system connector do you need specifically. I'll find one one that's perfect.
Optical
Both of those do optical and should work fine with android.
Thank you very much. I will look for a cheaper option but at least I know what to look for. Thx. These will pass through 5.1 right?
Here is the easiest way to ask. Ok Here is the reciever I have:
http://www.samsung.com/us/support/owners/product/HT-C550/XAA
The only inputs I have are either RCA or optical out from the receiver. Is there any way to connect the shield tv to get 5.1 surround sound? Sorry for not being clear. I am curious to know if the usb port from the nvidia shield will output 5.1. Thank you
Upon further inspection of options, you'll probably be best with something like this. It strips the 5.1 audio from the HDMI, then makes it optical. It's probably the most cost effective solution for true 5.1.
http://www.amazon.com/Panlong-Headphone-Extractor-Converter-Splitter/dp/B00JZCLW6A
mdwright1031 said:
Yes will the Nvidia shield pass the audio through USB?
Click to expand...
Click to collapse
I think the best will be a HDMI to optical box...
Or hope your tv has a sound pass through. and use the tv optical out.
tailslol said:
I think the best will be a HDMI to optical box...
Or hope your tv has a sound pass through. and use the tv optical out.
Click to expand...
Click to collapse
Unfortunately mine does not. I have an old 46" Sammy with excellent colors I don't want to give up. It has an optical port but you only get 2.1 that way.
kdb424 said:
Upon further inspection of options, you'll probably be best with something like this. It strips the 5.1 audio from the HDMI, then makes it optical. It's probably the most cost effective solution for true 5.1.
http://www.amazon.com/Panlong-Headphone-Extractor-Converter-Splitter/dp/B00JZCLW6A
Click to expand...
Click to collapse
So with this option I would:
Surround receiver optical into this box optical
Nvidia shield hdmi into box
then box hdmi to tv?
mdwright1031 said:
So with this option I would:
Surround receiver optical into this box optical
Nvidia shield hdmi into box
then box hdmi to tv?
Click to expand...
Click to collapse
Yep. That just strips the sound from the HDMI, so you can just use the out ports on that for sound and video. It's full 5.1 sound out, and normal HDMI passthrough so you won't lose any quality on video or audio.
kdb424 said:
Yep. That just strips the sound from the HDMI, so you can just use the out ports on that for sound and video. It's full 5.1 sound out, and normal HDMI passthrough so you won't lose any quality on video or audio.
Click to expand...
Click to collapse
Thanks a lot.
mdwright1031 said:
Thanks a lot.
Click to expand...
Click to collapse
It can add some small sound delay still, but less than a USB thing.
But I guess most content on android are in stereo so if you want some 5.1 effect all the time make sure your receiver does some dolby pro logic 2 for a 2.0 to 5.1 effect.
tailslol said:
It can add some small sound delay still, but less than a USB thing.
But I guess most content on android are in stereo so if you want some 5.1 effect all the time make sure your receiver does some dolby pro logic 2 for a 2.0 to 5.1 effect.
Click to expand...
Click to collapse
Things like Kodi will, or soon will, do 5.1 on the shield. I'm going to assume that's why this is being asked. That' and the only thing their reciever can accept is 5.1 optical, so either way, it's what they want.
EDIT: Checked up on it. It does support 5.1 audio with the lastest version.
kdb424 said:
Things like Kodi will, or soon will, do 5.1 on the shield. I'm going to assume that's why this is being asked. That' and the only thing their reciever can accept is 5.1 optical, so either way, it's what they want.
EDIT: Checked up on it. It does support 5.1 audio with the lastest version.
Click to expand...
Click to collapse
Yes kodi, vlc,and most local video player support 5.1 and 7.1 content, but apps like YouTube,daily motion,some streaming tv/anime/movies apps and maybe popcorn time and Netflix,or some games and music streaming apps like spotify only use 2.0 sound.
In this case a dolby pro logic 2 mode is cool for a "all time" 5.1 sound mode if you see what I mean :laugh:
I use a HDMI pioneer receiver and it is really good one because it can switch from full Dolby digital 5.1 mode to Dolby pro logic 2 by itself if it detect 2.0 output.
Shield TV update 2.0 added support for USB to optical dongles.
"Supports USB-S/PDIF dongles and enables users to connect SHIELD to older sound bars and audio receivers."

USB Audio Issues

Tried the USB audio out to a couple of external DACs and both have pops and clicks. It appears like the Shield up samples everything to the max capability of the DAC up to 192k. This causes random unlocking of the signal to the DAC causing the pops and clicks. It also prevents the transmission of bit perfect audio to the DAC.
Does anybody know of a way to switch off up sampling in the Shield so that it plays the native sampling rate of the source? Is there some way of "conning" the Shield during the USB handshake?
Sent from my iPhone using Tapatalk
themystical said:
Tried the USB audio out to a couple of external DACs and both have pops and clicks. It appears like the Shield up samples everything to the max capability of the DAC up to 192k. This causes random unlocking of the signal to the DAC causing the pops and clicks. It also prevents the transmission of bit perfect audio to the DAC.
Does anybody know of a way to switch off up sampling in the Shield so that it plays the native sampling rate of the source? Is there some way of "conning" the Shield during the USB handshake?
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Response from Nvidia customer service:
We're sorry, unfortunately there is no option for Manual control upsampling or downsampling with External Digital to Analog Converter on Shield Android TV.
Any help appreciated!
Sent from my iPhone using Tapatalk
Thanks for posting this. I have similar issues using a NAD D3020 amp as my DAC. If there's constant audio it's fine, but whenever the SHIELD idles for a bit the next sound (e.g. scrolling through menus) is a loud crackle/pop.
This is sorted now with the 3.0 update. It is now possible to select 192k or 44.1k audio output through settings.
Sent from my iPad using Tapatalk
Hi all,
I just saw this thread about USB DAC. My problem is slightly different.
Indeed, FW 3.0 just improved USB DAC compatibility within Android. Still, a new problem arises within Kodi.
With 2.1 FW, I could use my Rega DAC (it is passthrough compatible). AC3 and DTS were sent to my AV receiver perfectly (passthrough working under Kodi).
With 3.0, I can no longer use my Rega DAC under Kodi. Passthrough is not functional within Kodi. I have ugly white/pink noise instead.
So now I'm left with no possibility to let my DAC passthrough the audio to my receiver. This is really boring since my receiver has no USB in, and requires my DAC to passthrough via optical cable.
Good news is improved compatibility under Android system : my other high-end DAC now works with 3.0 (impossible under 2.1) although it is not passthrough compatible.
So my question : what's wrong with the 3.0 update related to USB device or audio passthrough within Kodi ?
Anyone with a hint or solution ? Thanks by advance.
AngelHeart said:
Hi all,
I just saw this thread about USB DAC. My problem is slightly different.
Indeed, FW 3.0 just improved USB DAC compatibility within Android. Still, a new problem arises within Kodi.
With 2.1 FW, I could use my Rega DAC (it is passthrough compatible). AC3 and DTS were sent to my AV receiver perfectly (passthrough working under Kodi).
With 3.0, I can no longer use my Rega DAC under Kodi. Passthrough is not functional within Kodi. I have ugly white/pink noise instead.
So now I'm left with no possibility to let my DAC passthrough the audio to my receiver. This is really boring since my receiver has no USB in, and requires my DAC to passthrough via optical cable.
Good news is improved compatibility under Android system : my other high-end DAC now works with 3.0 (impossible under 2.1) although it is not passthrough compatible.
So my question : what's wrong with the 3.0 update related to USB device or audio passthrough within Kodi ?
Anyone with a hint or solution ? Thanks by advance.
Click to expand...
Click to collapse
First post here, I had a related issue where I had to modify audio_policy.conf in order to get DTS to passthrough to receiver via the TV's optical connection (Shield to TV to Receiver). That problem was related to the TV's EDID not reporting DTS capability, even though it technically works (probably omitted due to licensing fees). Anyway, in \system\etc\audio_policy.conf, there was also a setting for USB passthrough. You may be able to manually enter the formats to passthrough instead of relying on "dynamic", which relies on polling the device what it supports. (requires root access to edit this).
Thanks for advice.
I'll check this and come back after rooting my SATV
settings
Hi,
I've not been able to root my device, since root is difficult to perform with 500gb version added to 4K TV (TWRP not compatible).
Still, seems like USB passthrough is set to "2". Apparently "0" means disabled whereas "1" is activated (correct me if I'm wrong)
So, do I have no choice except from root ? If you have any clue about this, could you please keep me in the know ?
Thanks in advance,
Pops and clicks
I just put in a Turtle Beach Audio Advantage Micro II USB Analog & Digital Audio Adapter. Works just fine like people are saying but when no audio is going on the led on the Micro II goes off. Then when there is anything, even system sounds it kicks on the LED turns on and my speakers pop loud. Has anyone figured a fix or is this just USB audio. And is an HDMI audio puller a better solution for simple stereo 2.1 setup? Or does that pop too?
OK. Think i found a temp fix. When using USB DAC direct to an analog source it kept popping because it was sending live signal to hot amp every time USB DAC would come back from standby. SO how to keep DAC from sleeping when no sound was live, I installed VirtualHere USB Server From the TV Play store. Checked always as this was only USB device i had plugged in. Then went to setting and only checked Start On Boot. Since then after full restart DAC stays on, LED stays lit and sound is always on. No more pops.

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