Shield TV USB audio for DAC use

[BDWoody]

But how does the AVR know that the audio is in the analog audio inputs? You specify which HDMI syncs with the analog input?

You should be able to assign some specific analog input to a specific HDMI input on the receiver, but then the question is why you don't just use the HDMI for both audio and video and let your receiver do the decoding.

Particularly if you use any kind of dsp such as used with subwoofers or room correction, it will all be resampled anyway.

I feel like I am possibly missing something.

 

[carlmart]

Yes, what you're missing is that when I assembled a separate audio network, not using the Shield or Kodi, and instead a Raspberry + picoreplayer + USB output + DAC, both systems using ethernet, the audio quality of the latter was overwhelming, and the other was only average. Hi fi quality, when I had audiophile quality.
And since I bought the AVR I have been looking for ways to improve things for music listening. But I continue to get... hi-fi quality.
It seems to work fine for film & video audio, but I even considered to buy a multi-channel external DAC, and perhaps getting the "audiophile" quality for video too.

 

[carlmart]

If you go through the setup menu to device preferences, to display & sound, to advanced sound settings, to audio output, you will see this screen:

View attachment 261162

If you plug in a DAC (had this one sitting in the drawer) it will show up as an option:

View attachment 261163

Just select it and your audio gets routed to that DAC. Does that answer your question?

Those are Shield screens or Kodi Strings? If they are Shield's I don't have those options.

 

[Sam Ash]

I am using the Shield TV 2017 (the model previous to the current 2019 version). It is connected via HDMI to an AV processor that which incorporates a Cirrus 32-bit dual-core DSP (192Khz). I have downloaded Spotify on the Shield and on my Android Phone. I then run the Spotify on the Shield first and then on my phone, I use the Spotify on my phone to control the Spotify on the Shield as they both share the same WiFi. I think this sort of setup is similar to Spotify Connect but I'm not sure.

As I'm using HDMI, does it mean the Shield (via the Spotify app on the Shield) is handing over the stereo PCM to my AV Processor and the DAC in my AV Processor is being engaged?

Previously, I had an Apple iPod in the mix connected to the processor via the analogue (RCA) interface and I loved the resulting sound even though the DAC in the processor is way better. Could this be arising from the fact that the Shield is engaging its own internal DAC?

 

[BDWoody]

I am using the Shield TV 2017 (the model previous to the current 2019 version). It is connected via HDMI to an AV processor that which incorporates a Cirrus 32-bit dual-core DSP (192Khz). I have downloaded Spotify on the Shield and on my Android Phone. I then run the Spotify on the Shield first and then on my phone, I use the Spotify on my phone to control the Spotify on the Shield as they both share the same WiFi. I think this sort of setup is similar to Spotify Connect but I'm not sure.

As I'm using HDMI, does it mean the Shield (via the Spotify app on the Shield) is handing over the stereo PCM to my AV Processor and the DAC in my AV Processor is being engaged?

Previously, I had an Apple iPod in the mix connected to the processor via the analogue (RCA) interface and I loved the resulting sound even though the DAC in the processor is way better. Could this be arising from the fact that the Shield is engaging its own internal DAC?

The shield has no analog outputs, so doesn't have a DAC, other than what might be included in the controllers to plug headphones into, which isn't what anyone is talking about.

Anytime you are using the dsp in a receiver, you are using the internal DAC of that device.

When you fed it from your iPod, it would have been digitally sampled so it could be manipulated internally as well, so in any of these cases you are getting the receiver to do the final analog conversion.

 

[Sam Ash]

The shield has no analog outputs, so doesn't have a DAC, other than what might be included in the controllers to plug headphones into, which isn't what anyone is talking about.

Anytime you are using the dsp in a receiver, you are using the internal DAC of that device.

When you fed it from your iPod, it would have been digitally sampled so it could be manipulated internally as well, so in any of these cases you are getting the receiver to do the final analog conversion.

In the case of the iPod connected to the av processor via analogue (RCA), I think the av processor was doing two conversions internally: ADC first and then DAC thereafter (converted twice). Consequently, I could not control the volume from the iPod. Volume could only be controlled via the processor's remote-control unit. Using this workflow, the sound seemed better to me in terms of it being forward with better mid-range detail. I listen to all my music via DPLIIx up-mixing and the previous iPod based workflow provided a much more immersive experience. My current Shield setup with an HDMI connection is sending stereo PCM to the processor which is being converted once by the processor's DAC. Technically, this should sound better but I feel it's a bit subdued and not as immersive via DPLIIx. Just to clarify, I'm using Spotify Premium to access the highest res that Spotify offers.

 

[dkpack99]

Long time member / lurker, first time posting!

Old thread… but figured I’d revive rather than start a new thread….

I’m trying to go from my Shield Pro to my Oppo Sonica dac… can’t seem to get it to work… using a usb cable… does it matter which usb port to use? I’ve tried both anyway… can I do this just choosing options from yeh shield menu?

Thanks in advance for your help!

Dave P.

 

[Tony1919]

Long time member / lurker, first time posting!

Old thread… but figured I’d revive rather than start a new thread….

I’m trying to go from my Shield Pro to my Oppo Sonica dac… can’t seem to get it to work… using a usb cable… does it matter which usb port to use? I’ve tried both anyway… can I do this just choosing options from yeh shield menu?

Thanks in advance for your help!

Dave P.

Is this what you looking for? Im not sure what cable I need to connect my Lyngdorf 2170 to my Shield. Any help much appreciated.

Know Your SHIELD TV Pro

Know Your SHIELD TV Pro

www.nvidia.com

 

[BDWoody]

Is this what you looking for? Im not sure what cable I need to connect my Lyngdorf 2170 to my Shield. Any help much appreciated.

Know Your SHIELD TV Pro

Know Your SHIELD TV Pro

www.nvidia.com

Does yours have the HDMI module? If so, I think that's the easiest solution. If not, you might need some kind of HDMI/spdif splitter.

 

[Tony1919]

Does yours have the HDMI module? If so, I think that's the easiest solution. If not, you might need some kind of HDMI/spdif splitter.

yes it does but the HDMI in the Lyngdorf is 1.4. I want to use the usb out of the shield to the Lyngdorf and the HDMI to my Marantz AVR for when I watch Dolby vision+ Atmos films.

At the moment for 2 channel music I use HDMI to the Marantz from the shield, then the HDMI out to the TV from the Marantz. I have a spdif from the TV going in to the Lyngdorf changing the setting in the TV to spdif out only.

I looked at an audio extractor option then noticed the shield can play audio out of the USB and want to try it. I asked google AI and it said I needed a USB- A to USB-B cable so I ordered a cheap one to test if it works. The HDMI on the Lyngdorf's are not working for me I have 2 the same 2170s one does not work at all with My TV I get a pink screen but it works on a P.C monitor, the other one keeps cutting out on the TV.