What devices will stream Amazon Music HD Lossless - Page 6 - AVS Forum | Home Theater Discussions And Reviews
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post #151 of 207 Old 10-10-2019, 06:38 AM
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Quote:
Originally Posted by groove93 View Post
Until there's a way for the Application to enable an external DAC to have Exclusive Mode, you'll just have to deal with what Amazon says about each file.
With an Application such as Roon or Foobar, most DACs will display what type of file is being played in real-time.
Just in case anyone is getting the wrong idea, DACs don't know anything about playing (audio) files nor (audio) file types and only deal with the real-time digital audio signal (eg LPCM or DSD) produced by players like Roon or Foobar decoding audio files.

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post #152 of 207 Old 10-10-2019, 06:41 AM
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Originally Posted by Cebolla View Post
Just in case anyone is getting the wrong idea, DACs don't know anything about playing (audio) files nor (audio) file types and only deal with the digital audio signal (eg LPCM or DSD) produced by players like Roon or Foobar decoding audio files.
For Tidal and UAPP as well?

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post #153 of 207 Old 10-10-2019, 06:58 AM
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Originally Posted by groove93 View Post
For Tidal and UAPP as well?
Not sure if you've understood:
Players like TIDAL & UAPP deal with audio files and decode them to audio signals;
DACs only deal with the audio signals;
Audio signals come from decoding audio files;
DACs can only display info on audio signals;
Players can display info on audio files and the audio signals that the audio files decode to.
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post #154 of 207 Old 10-10-2019, 07:25 AM
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I signed up day one and never could get High Resolution audio. Contacted Amazon and they had no clue why. My set up is Fire tv 3 Pioneer High Resolution receiver and Sony core speakers. Tidal works fine.
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post #155 of 207 Old 10-10-2019, 07:44 AM
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I've been following and posting about this device capability topic on a couple other forums (Amazon Music forum and audiophilestyle.com) and it seems that there is not any new info on planned device capability to play HD and Ultra HD tracks natively.

So, what we've got in terms of options is the following, as far as I can tell:

Heos:
Will play HD and Ultra HD tracks natively at full resolution within Heos app, but My Music is still not available. This can be confirmed by hitting Status button on your D-M AVR/AVP.

BluOS:
Will play HD and Ultra HD tracks natively at full resolution within BluOS app, and My Music is available. People have reported that their DACs are receiving the native bit rate and sampling frequency of Ultra HD tracks.

Sonos:
Will play HD (but not Ultra HD tracks natively) at full resolution within Sonos app, and My Music is available. Within the Sonos app, there is no way to verify 16/44.1 FLAC, but folks have clocked their router and determined that the bitrate being received by Sonos is in-line with 16/44.1 FLAC.

Any others?


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post #156 of 207 Old 10-10-2019, 08:13 AM
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Quote:
Originally Posted by adam2434 View Post
I've been following and posting about this device capability topic on a couple other forums (Amazon Music forum and audiophilestyle.com) and it seems that there is not any new info on planned device capability to play HD and Ultra HD tracks natively.

So, what we've got in terms of options is the following, as far as I can tell:

Heos:
Will play HD and Ultra HD tracks natively at full resolution within Heos app, but My Music is still not available. This can be confirmed by hitting Status button on your D-M AVR/AVP.

BluOS:
Will play HD and Ultra HD tracks natively at full resolution within BluOS app, and My Music is available. People have reported that their DACs are receiving the native bit rate and sampling frequency of Ultra HD tracks.

Sonos:
Will play HD (but not Ultra HD tracks natively) at full resolution within Sonos app, and My Music is available. Within the Sonos app, there is no way to verify 16/44.1 FLAC, but folks have clocked their router and determined that the bitrate being received by Sonos is in-line with 16/44.1 FLAC.

Any others?


-
There's also the Amazon Music Android app which I believe (correct me if I'm wrong) plays full HD and UHD resolution via 3.5mm to headphones or car stereo. But not via bluetooth. Not sure about iOS.

Also Amazon Echo, which I believe is dumbed down to SD/256 Kbps for both HD/UHD content.

Last edited by PlanetAVS; 10-10-2019 at 08:16 AM.
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post #157 of 207 Old 10-10-2019, 08:42 AM
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Quote:
Originally Posted by PlanetAVS View Post
There's also the Amazon Music Android app which I believe (correct me if I'm wrong) plays full HD and UHD resolution via 3.5mm to headphones or car stereo. But not via bluetooth. Not sure about iOS.

Also Amazon Echo, which I believe is dumbed down to SD/256 Kbps for both HD/UHD content.
Regarding the Amazon Music Android app, I was skipping over that option because who wants to connect to their home audio system via 3.5mm cable these days? That is so 2001. LOL.

Kidding aside, my Galaxy 7 shows 24/48 device capability, so 96 gets downsampled to 48. HD 16/44.1 shows that it is playing back natively.

Regarding Echo, not sure. I read that the Echo Link will only do 16/48 max via digital outputs. With Alexa Cast to Heos, I got 256 kbps max regardless of quality badge. The Echo Studio (to be released next month) indicates HD capability. This makes me hope/think that Alexa Cast will be updated to at least support HD 16/44.1 FLAC, maybe?

As a side note, I really don't know how the Alexa Cast thing works. I only downloaded Alexa recently to try Alexa Cast with Heos. I assume Alexa Cast in the Amazon Music app simply directs an audio stream to a target device. If so, why can't Alexa Cast direct the HD or Ultra HD stream to the target device, based on the max resolution the target device can handle. I don't get why Alexa Cast appears to be limited to 256 kbps, at least with the Heos skill. Anyone know how Alexa Cast works and why it would have this limitation?


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post #158 of 207 Old 10-10-2019, 09:02 AM
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Quote:
Originally Posted by PlanetAVS View Post
There's also the Amazon Music Android app which I believe (correct me if I'm wrong) plays full HD and UHD resolution via 3.5mm to headphones or car stereo. But not via bluetooth. Not sure about iOS.

Also Amazon Echo, which I believe is dumbed down to SD/256 Kbps for both HD/UHD content.
No. All Android will decimate to 48khz. Android will also upsample 44.1khz to 48khz and will introduce noise and artifacts in the process. This can be heard most easily with sensitive IEMs.
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post #159 of 207 Old 10-10-2019, 09:30 AM
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No. All Android will decimate to 48khz. Android will also upsample 44.1khz to 48khz and will introduce noise and artifacts in the process. This can be heard most easily with sensitive IEMs.
Not that I personally care about phone playback resolution, but the Amazon Music app indicates that 16/44.1 tracks are being played back at 16/44.1 by my Galaxy S7.

Is the app wrong?

Also, when I use bluetooth with the phone, in Developer Options, it shows that the sampling frequency for aptX output is 44.1 for my personal FLAC tracks that are natively 44.1.


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post #160 of 207 Old 10-10-2019, 09:42 AM
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Quote:
Originally Posted by adam2434 View Post
Not that I personally care about phone playback resolution, but the Amazon Music app indicates that 16/44.1 tracks are being played back at 16/44.1 by my Galaxy S7.



Is the app wrong?



Also, when I use bluetooth with the phone, in Developer Options, it shows that the sampling frequency for aptX output is 44.1 for my personal FLAC tracks that are natively 44.1.





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Try using audio_flinger

and not all Android devices are phones

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post #161 of 207 Old 10-10-2019, 09:48 AM
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Quote:
Originally Posted by adam2434 View Post
Not that I personally care about phone playback resolution, but the Amazon Music app indicates that 16/44.1 tracks are being played back at 16/44.1 by my Galaxy S7.

Is the app wrong?
The app can only report what it hands off to the Android operating system. The audio goes into a black box and comes out the other end. You need to look at the output to determine what happened in the black box.

At one point Android only output 48khz regardless of source. That may have changed or is device dependent now.
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post #162 of 207 Old 10-10-2019, 09:50 AM
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Originally Posted by adam2434 View Post
Regarding the Amazon Music Android app, I was skipping over that option because who wants to connect to their home audio system via 3.5mm cable these days? That is so 2001. LOL.

-
Although home audio is the best environment, its not the only environment. Listening in the car is still a big percentage of people's consumption, as well as headphone listening via mobile device (late night, traveling on planes etc)
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post #163 of 207 Old 10-10-2019, 09:58 AM
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Originally Posted by dwaleke View Post
The app can only report what it hands off to the Android operating system. The audio goes into a black box and comes out the other end. You need to look at the output to determine what happened in the black box.

At one point Android only output 48khz regardless of source. That may have changed or is device dependent now.
I posted in a prior post in this thread that I connected a HDMI adapter to my Samsung S9+ and I could only get 48kHz out no matter the Amazon Music HD sampling frequency. I do believe that I was getting 24 bit PCM stereo but I couldn't absolutely verify it was 24 bits.

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post #164 of 207 Old 10-10-2019, 10:06 AM
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I posted in a prior post in this thread that I connected a HDMI adapter to my Samsung S9+ and I could only get 48kHz out no matter the Amazon Music HD sampling frequency. I do believe that I was getting 24 bit PCM stereo but I couldn't absolutely verify it was 24 bits.
24/48 would make sense.

The Nvidia Shield TV (Android TV) had that limitation for a long time (might still) for any PCM audio that wasn't bitstreamed.
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post #165 of 207 Old 10-10-2019, 12:13 PM
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24/48 would make sense.

The Nvidia Shield TV (Android TV) had that limitation for a long time (might still) for any PCM audio that wasn't bitstreamed.
I wonder how the Shield TV would work with Amazon Music HD.

Would one load the Amazon Music app on the Shield TV and could the Amazon Music app on one's phone control music selection played to the Shield TV.

And would the Shield TV resample HD 16/44.1 to 48 kHz?

Just wondering if the Shield TV is a good option for Amazon Music HD...

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post #166 of 207 Old 10-10-2019, 12:32 PM
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Originally Posted by adam2434 View Post
I wonder how the Shield TV would work with Amazon Music HD.

Would one load the Amazon Music app on the Shield TV and could the Amazon Music app on one's phone control music selection played to the Shield TV.

And would the Shield TV resample HD 16/44.1 to 48 kHz?

Just wondering if the Shield TV is a good option for Amazon Music HD...
I'll give it a try later. Don't think it will be controllable via the mobile app unless it is cast via Alexa.

EDIT: Actually the Shield has a remote app that I'll try, which could work

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post #167 of 207 Old 10-10-2019, 02:45 PM
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The Shield outputs at 48Khz for all content it appears. The remote app doesn't link to the Amazon Music app, therefore one can't control music selection.
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post #168 of 207 Old 10-10-2019, 03:20 PM
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The Shield outputs at 48Khz for all content it appears. The remote app doesn't link to the Amazon Music app, therefore one can't control music selection.
OK, thanks for checking.

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post #169 of 207 Old 10-12-2019, 02:24 PM
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Played around a little with Amazon Music and Play-Fi on my Klipsch Powergate amp that I have in a little test system. BTW, I don't normally use Play-Fi with the Powergate because I really dislike the UI and the wifi connection is unstable. Instead, I use a CCA connected via optical.

So, in the Amazon Music app within Play-Fi, there is no quality badge indicator, but there is at least My Music.

Not sure if anyone has confirmed the sampling rate of Ultra HD tracks using a Play-Fi box with digital outs, not that I would ever use or recommend Play-Fi.


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I tried Play-fi with my Anthem processor. It’s a terrible app and clunky operation. No way to know what resolution is playing. All Play-fi does is duplicate Airplay’s function for others brands. So I’d rather stream via AirPlay to Appletv from my iPad. At least I know what resolution my iPad is playing even if the Appletv is limited to 48kHZ.
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post #171 of 207 Old 10-13-2019, 08:33 PM
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Quote:
Originally Posted by spencer777 View Post
I signed up day one and never could get High Resolution audio. Contacted Amazon and they had no clue why. My set up is Fire tv 3 Pioneer High Resolution receiver and Sony core speakers. Tidal works fine.
Interesting. I tried to access the HD music on my Fire Cube and it sounded awful. Said my system was limited to redbook but in reality the Marantz receiver is capable of 24 bit and 192hz over HDMI. I presume there is a way to rediscover the receiver from the Fire Cube but I am not sure where in the Fire Cube that is done.
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post #172 of 207 Old 10-13-2019, 08:39 PM
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Interesting. I tried to access the HD music on my Fire Cube and it sounded awful. Said my system was limited to redbook but in reality the Marantz receiver is capable of 24 bit and 192hz over HDMI. I presume there is a way to rediscover the receiver from the Fire Cube but I am not sure where in the Fire Cube that is done.
Original FTV Cube max's out at 16/48, same as the FTV Stick 4K.

I've heard the new FTV Cube also max's out at 16/48 but I haven't seen a confirmation.

Independent of FTV, if your Marantz has HEOS, you can get 24/192.
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post #173 of 207 Old 10-14-2019, 09:36 AM
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Originally Posted by originalsnuffy View Post
Interesting. I tried to access the HD music on my Fire Cube and it sounded awful. Said my system was limited to redbook but in reality the Marantz receiver is capable of 24 bit and 192hz over HDMI. I presume there is a way to rediscover the receiver from the Fire Cube but I am not sure where in the Fire Cube that is done.
Presuming the specs are shown correctly on the Amazon website, the 1st gen FTV Cube has better audio specs than gen 2.

Given I own a FTV Stick 4K, I find it encouraging that the FTV Stick 4K specs claim it can support up to 24/48 although it only operates at 16/48 currently.

FTV Stick 4K Audio Codec Specs:
Dolby Atmos (EC3_JOC). Up to 48kHz, 8 channels, 16-bit and 24-bit
AC3 (Dolby Digital). Up to 48kHz, 6 channels, 16-bit and 24-bit
eAC3 (Dolby Digital Plus). Up to 48kHz, 8 channels, 16-bit and 24-bit
AAC-LC. Up to 48kHz, 6 channels, 16-bit and 24-bit
HE-AACv1 (AAC+). Up to 48kHz, 6 channels, 16-bit and 24-bit
HE-AACv2 (enhanced AAC+). Up to 48kHz, 6 channels, 16-bit and 24-bit
FLAC. Up to 48kHz, 2 channels, 16-bit and 24-bit (no dither for 24 bit)
MIDI. MIDI (Type 0 and 1), DLS (Version 1 and 2), XMF, and Mobile XMF. Ringtone formats RTTTL/RTX, OTA, and iMelody.
MP3. Up to 48kHz, 2 channels in DSP (16-bit and 24-bit) and software (16-bit).
PCM/Wave. Up to 96kHz, 6 channels, 16-bit and 24-bit.
Vorbis. Ogg (.ogg), Matroska (.mkv)
AMR-NB. Supported.
AMR-WB. Supported.

Amazon FTV Gen 2 Cube Audio Codec Specs:
Dolby Atmos (EC3_JOC). Up to 48kHz, 8 channels, 16-bit
AC3 (Dolby Digital). Up to 48kHz, 6 channels, 16-bit
eAC3 (Dolby Digital Plus). Up to 48kHz, 8 channels, 16-bit
AAC Profile (AAC LC). Support for up to 8 channels from 8 kHz to 48 kHz.
MPEG-4 HE AAC Profile (AAC+). Support for up to 8 channels from 8 kHz to 48 kHz.
MPEG-4 HE AACv2 Profile (enhanced AAC+). Support for up to 8 channels from 8 kHz to 48 kHz.
AAC ELD (enhanced low delay AAC). Support for up to 8 channels from 8 kHz to 48 kHz.
AMR-NB 4.75 to 12.2 kbps sampled @ 8 kHz
AMR-WB. 9 rates from 6.60 kbit/s to 23.85 kbit/s sampled @ 16 kHz
FLAC. Up to 2 channels. Sample rates up to 48 kHz (but up to 44.1 kHz is recommended on devices with 44.1 kHz output, as the 48 to 44.1 kHz downsampler does not include a low-pass filter). 16-bit recommended; no dither applied for 24-bit.
MP3. Mono/Stereo 8-320Kbps constant (CBR) or variable bitrate (VBR)
Vorbis. Up to 8 channels, 32-500 kbit/s
Opus. Up to 8 channels, 48 kHz
PCM/WAVE. 16-bit linear PCM up to 8 channels and 96kHz.

Amazon FTV Gen 1 Cube Audio Codec Specs:
Dolby Atmos (EC3_JOC). Up to 48kHz, 8 channels, 16-bit and 24-bit
AC3 (Dolby Digital). Up to 48kHz, 6 channels, 16-bit and 24-bit
eAC3 (Dolby Digital Plus). Up to 48kHz, 8 channels, 16-bit and 24-bit
AAC-LC. Up to 48kHz, 6 channels, 16-bit and 24-bit
HE-AACv1 (AAC+). Up to 48kHz, 6 channels, 16-bit and 24-bit
HE-AACv2 (enhanced AAC+). Up to 48kHz, 6 channels, 16-bit and 24-bit
FLAC. Up to 48kHz, 2 channels, 16-bit and 24-bit (no dither for 24 bit)
MIDI. MIDI (Type 0 and 1), DLS (Version 1 and 2), XMF, and Mobile XMF. Ringtone formats RTTTL/RTX, OTA, and iMelody
MP3. Up to 48kHz, 2 channels in DSP (16-bit and 24-bit) and software (16-bit)
PCM/Wave. Up to 96kHz, 6 channels, 16-bit and 24-bit
Vorbis. Ogg (.ogg), Matroska (.mkv)
AMR-NB. Supported
AMR-WB. Supported
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post #174 of 207 Old 10-14-2019, 11:47 AM
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Originally Posted by kokishin View Post
Independent of FTV, if your Marantz has HEOS, you can get 24/192.
Yes I have Heos so I can check that out. I also could stream from the HTPC.

Amazon chat support suggested I rerun the connected device discovery process and that could fix some of my issue so its on my to do list.
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post #175 of 207 Old 10-14-2019, 08:24 PM
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Originally Posted by originalsnuffy View Post
Yes I have Heos so I can check that out. I also could stream from the HTPC.

Amazon chat support suggested I rerun the connected device discovery process and that could fix some of my issue so its on my to do list.
I've been using Heos on my Marantz and it streams Amazon HD very well and shows the bit rate. I'm really enjoying my trial period.

Man cave-Marantz 8012, Oppo 203, 4K ATV, Sony XBR-75X940E, Bluesound Vault 2, Harmony One, 2 Paradigm Monitor 9's, CC-390, 2ADP 390's/190's, 2 PDR 100's,
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post #176 of 207 Old 10-14-2019, 08:35 PM
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Quote:
Originally Posted by originalsnuffy View Post
Yes I have Heos so I can check that out. I also could stream from the HTPC.

Amazon chat support suggested I rerun the connected device discovery process and that could fix some of my issue so its on my to do list.
I've been using Heos on my Marantz and it streams Amazon HD very well and shows the bit rate. I'm really enjoying my trial period.

Man cave-Marantz 8012, Oppo 203, 4K ATV, Sony XBR-75X940E, Bluesound Vault 2, Harmony One, 2 Paradigm Monitor 9's, CC-390, 2ADP 390's/190's, 2 PDR 100's,
4 SVS Prime elevations. B&W P5. Living room- Yamaha 2010, Bluesound Node 2, Paradigm SE-1's, Zone 2-Paradigm-Stylus 370-SM
Bedroom- Samsung UN60ES7100F, Oppo 103D, Pulse Mini, JBL Bar Studio, ATV3 and Harmony 650
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post #177 of 207 Old 10-15-2019, 04:33 AM
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I have an Egreat A11 media player and after realising that the best I can achieve on other devices is CD quality (HD as Amazon calls it) my thoughts turned to see if I could install the Amazon Music app (I say "if" because Roku doesn't yet support it here in the UK) and get Ultra HD. I've had limited success with DSD files on this device but the Android os limits them to 24bit/48khz, which defeats the object. The app was quickly found and was installed ok. However with limited functionality using the player's remote or using my Harmony Hub. I tried plugging in a mouse to the front usb port and voila!, I could get the app to work perfectly.


One thing that has crept up a few times here is "how can I tell what actual playing quality I'm getting, when a track is playing". I had no issues using the app on my Android tablet but on my Fire TV Stick 4K, the 3 horizontal dots (which will provide this information) to the right of the play-bar, are missing. Playing around with my Egreat however, I accidently clicked on the "Yellow Ultra HD" icon (yes it is an icon) underneath the track/album title on the left hand side of the screen. I was delighted to see a window pop up showing the usual 3 items of information - woohoo! Not sure if this will help others, as, as it works on my media player, I guess it will work on other platforms / devices if the dots are missing at the bottom of the screen.


I'm still playing around with my media player to see what level of quality I can get. So far, as I had thought, the max is 24bit/48khz. I doubt if I can squeeze anymore quality out of it (ie; above 24bit/48khz) but I have some settings left to play with as I haven't yet altered them - motivated because the player supports 24bit/192khz flacs via my NAS. If I get any success I'll report back.


My AVR is a Yamaha RX-A1070 and yes, as has already been reported, no native support for Amazon Music. I'm encouraged that support will soon be added and my best bet, is to wait a bit until I see what develops. I am on the 90-day free trial so nothing lost but I am flabbergasted that Amazon can release such hedline-grabbing service, yet very very few people can currently enjoy it.

Last edited by rozel; 10-15-2019 at 04:41 AM.
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post #178 of 207 Old 10-15-2019, 02:59 PM
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So far a bit disappointed with the service, mainly due to lacking PC app and horrible FireTV 4k implementation. It has been already mentioned multiple times, but I don't trust windows and would rather have direct access to my USB DAC, as in Foobar2000 or similar. But the Fire TV 4K is just atrocious, even though it says it is playing at 16 bit 44kHz, my receiver sees a Dolby Digital + signal. it even upsamples 44kHz to 48 kHz for some reason. Why is it so hard to have the stick output plain old PCM in stereo and let the user decide on channel configuration??? If i pick stereo in the audio options, then it outputs 3/2/.1, which forces the receiver to only play FL and FR, all other channel being silent Also, either the specs are misleading, or someone at amazon has missed something:


FTV Stick 4K Audio Codec Specs:
FLAC. Up to 48kHz, 2 channels, 16-bit and 24-bit (no dither for 24 bit)
PCM/Wave. Up to 96kHz, 6 channels, 16-bit and 24-bit.


If amazon is streaming in FLAC, and the stick is capable of multichannel 96kHz 24bit, there is no reason not to be able to decode a 24/96 FLAC file and output as 24/96 PCM over HDMI. The raspberry Pi 1 was able to decode FLAC in software, it shouldn't be that hard, especially since this device is not battery powered.


The best option so far for streaming to my home receiver, which is an older Denon from 2013, seems to be AirPlay, which converts everything to Apple lossles 16/44 (CD). So if I understand correctly, Amazon is streaming in FLAC, which is then decoded to PCM and reencoded to Apple Lossless, which goes to the receiver over airplay, and should be preserved if the FLAC stream is also 16/44. Wish there was a software update for the receiver to add support for amazon, since it already has spotify and newer models do have amazon and tidal and so on, but there is zero chance of that happening.

Otherwise the iPhone app shows the device is capable of 24 bit 48 kHz, and I hope this is what is played over CarPlay, sound good but haven't done any blind tests.
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post #179 of 207 Old 10-15-2019, 03:13 PM
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Quote:
Originally Posted by Haralampi Nedelin View Post
So far a bit disappointed with the service, mainly due to lacking PC app and horrible FireTV 4k implementation. It has been already mentioned multiple times, but I don't trust windows and would rather have direct access to my USB DAC, as in Foobar2000 or similar. But the Fire TV 4K is just atrocious, even though it says it is playing at 16 bit 44kHz, my receiver sees a Dolby Digital + signal. it even upsamples 44kHz to 48 kHz for some reason. Why is it so hard to have the stick output plain old PCM in stereo and let the user decide on channel configuration??? If i pick stereo in the audio options, then it outputs 3/2/.1, which forces the receiver to only play FL and FR, all other channel being silent Also, either the specs are misleading, or someone at amazon has missed something:


FTV Stick 4K Audio Codec Specs:
FLAC. Up to 48kHz, 2 channels, 16-bit and 24-bit (no dither for 24 bit)
PCM/Wave. Up to 96kHz, 6 channels, 16-bit and 24-bit.


If amazon is streaming in FLAC, and the stick is capable of multichannel 96kHz 24bit, there is no reason not to be able to decode a 24/96 FLAC file and output as 24/96 PCM over HDMI. The raspberry Pi 1 was able to decode FLAC in software, it shouldn't be that hard, especially since this device is not battery powered.


The best option so far for streaming to my home receiver, which is an older Denon from 2013, seems to be AirPlay, which converts everything to Apple lossles 16/44 (CD). So if I understand correctly, Amazon is streaming in FLAC, which is then decoded to PCM and reencoded to Apple Lossless, which goes to the receiver over airplay, and should be preserved if the FLAC stream is also 16/44. Wish there was a software update for the receiver to add support for amazon, since it already has spotify and newer models do have amazon and tidal and so on, but there is zero chance of that happening.

Otherwise the iPhone app shows the device is capable of 24 bit 48 kHz, and I hope this is what is played over CarPlay, sound good but haven't done any blind tests.
Welcome to avs.

I have a FTV Stick 4K connected to a Denon 6200 and it's frustrating for the reasons you listed which echo my prior posts.

I wish amazon would stream 24 bit PCM stereo to my FTV Stick 4K. But everything is currently 16 bit DD+.

However, when Amazon Music HD goes "live" with Dolby Atmos encoded music, it will make sense to use DD+ for Atmos; ideally 24/48 DD+ encoded Dolby Atmos.

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post #180 of 207 Old 10-15-2019, 06:19 PM
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I tried Play-fi with my Anthem processor. It’s a terrible app and clunky operation. No way to know what resolution is playing. All Play-fi does is duplicate Airplay’s function for others brands. So I’d rather stream via AirPlay to Appletv from my iPad. At least I know what resolution my iPad is playing even if the Appletv is limited to 48kHZ.
You can do full 24-bit/192kHz Amazon Music HD playback via Play-Fi on Anthem products. Here’s how, according to Play-Fi:

Play-Fi will normally play back all files it supports in their native formats and encoding. High resolution files are a special case, and though they are not transcoded, they are down-sampled to CD quality to maintain stream and network performance.

For those who wish to hear high resolution audio as originally intended, Critical Listening mode will enable native rendering of high resolution files up to 24/192, with no down-sampling or network synchronization adjustment. In this way, audio files retain their original audio integrity.

Since the high resolution audio files are not down-sampled in this mode, they will remain exceptionally large. We support all modes over standard Wi-Fi, including Critical Listening, but a wired connection may improve the experience for those with network issues.

Enabling Critical Listening Mode

Before selecting a Play-Fi product, tap the Hi-Res button in the top bar of the zone module. This will change the list to display the Play-Fi products that are compatible with this mode. (Amazon Music HD is one of those products, and sounds amazing in Critical Listening Mode.)

Keep in mind that multi channel playback is disabled, and you only get one zone while listening this way. You won’t get a bit rate indicator, but the Critical Listening Mode indicator will be lit.

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