Chord Electronics ☆ Poly ☆ (wireless & microSD module for Mojo) ☆★►USEFUL INFO on 1st PAGE!!◄★☆
Aug 25, 2018 at 8:47 AM Post #10,744 of 18,748
Hi,
I'm finding that my mojo-poly combo isn't lasting more than 6 hours. It seems the battery depletes quicker since moving to MALP, but i grant I could be imagining that. Also, my mojo is a bit older than the poly so it may just be aged. So, now I'm looking into portable power banks to extend my battery life.

Does anyone have recommendations for power banks?

Can the mojo battery be replaced?

Thanks.
It certainly seems simple enough to replace the battery from the photos of mojo innards going about. The battery isn't soldered or glued in.
Apparently you'd need this:
https://www.hifipro.ca/product/chord-electronics-mojo-original-battery-replacement-accessories

Incidentally here's @Mojo ideas on the Mojo's battery:
"No the batteries are expected to last far longer than three years. The batteries in our designs are not subject to damaging deep discharge cycles or anything more than very light current demand .... Batteries used for power tools are quite a different matter, but in our units expect a life of greater than ten years. Mojo has a plug on it so it's just an easy replacement for a shop technician Hugo batteries will need soldering in place though but this is also a low skilled job which would be require rarely if ever."
John Franks.
 
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Aug 25, 2018 at 9:06 AM Post #10,745 of 18,748
MPDLuxe is adding the local file path to the stored playlist as opposed to the network address exposed by Poly's DLNA server. The MPD protocol allows for playlists to be built from URI's pointing to a file in the music directory, or using an absolute URI with a supported scheme (like HTTP): https://www.musicpd.org/doc/protocol/playlist_files.html. Glider is doing the latter since Glider's index is being built from the metadata returned from Poly's DLNA server, which includes only network addresses. This certainly isn't a traditional approach, but is well within the DLNA and MPD specs.

We'd be happy to implement support for GoFigure QuickPlay with the playlists built in Glider (even in Airplane mode) if the Poly would expose the proper metadata from the MPD database for all file types. Let me explain with an example. Here's a comparison of the metadata returned from the Poly MPD and DLNA servers for the same collection of files:

Code:
Joes-Mac-Pro-5:glider-ios joe$ telnet 10.0.1.22 6600
Trying 10.0.1.22...
Connected to 10.0.1.22.
Escape character is '^]'.
OK MPD 0.20.0
listallinfo
file: AAC/Abbey Road/01 The Beatles - Come Together.m4a
Last-Modified: 2017-08-10T15:45:15Z
Time: 260
duration: 260.017
Artist: The Beatles
Album: Abbey Road
Title: Come Together
Track: 1
Genre: Rock
Date: 1969
AlbumArtist: The Beatles
file: AIFF/44-16/B-Sides And Rarities/01 Beach House - Chariot.aiff
Last-Modified: 2017-07-31T04:13:04Z
Time: 317
duration: 316.506
file: DSD/DSD64/Come Away With Me (DSD)/01 - Don't Know Why.dsf
Last-Modified: 2018-01-14T09:40:51Z
Time: 188
duration: 188.371
file: FLAC/192-24/02 Blank Space.flac
Last-Modified: 2017-11-27T06:08:49Z
Time: 202
duration: 201.695
Title: Blank Space
Artist: Ryan Adams
Album: 1989
AlbumArtist: Ryan Adams
Track: 2
Date: 2015
file: MP3/Joyce Manor - Never Hungover Again - 01 Christmas Card.mp3
Last-Modified: 2017-08-11T11:38:37Z
Time: 125
duration: 125.400
file: WAV/44-16/Hug of Thunder/01 Broken Social Scene - Sol Luna.wav
Last-Modified: 2018-01-17T07:43:14Z
Time: 80
duration: 79.800
Title: Sol Luna
Artist: Broken Social Scene
Date: 2017
OK

Code:
<DIDL-Lite xmlns:dc="http://purl.org/dc/elements/1.1/"
           xmlns:upnp="urn:schemas-upnp-org:metadata-1-0/upnp/"
           xmlns="urn:schemas-upnp-org:metadata-1-0/DIDL-Lite/">
  <item id="1$4$0" parentID="1$4" restricted="1">
    <dc:title>Come Together</dc:title>
    <upnp:class>object.item.audioItem.musicTrack</upnp:class>
    <dc:creator>The Beatles</dc:creator>
    <dc:date>1969-01-01</dc:date>
    <upnp:artist>The Beatles</upnp:artist>
    <upnp:album>Abbey Road</upnp:album>
    <upnp:genre>Rock</upnp:genre>
    <upnp:originalTrackNumber>1</upnp:originalTrackNumber>
    <res duration="0:04:20.017" bitrate="165844" sampleFrequency="44100" nrAudioChannels="2"
         protocolInfo="http-get:*:audio/mp4:DLNA.ORG_PN=AAC_ISO_320;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000">
      http://10.0.1.22:8200/MediaItems/24.m4a
    </res>
    <upnp:albumArtURI>http://10.0.1.22:8200/AlbumArt/1-24.jpg</upnp:albumArtURI>
  </item>
  <item id="1$4$51" parentID="1$4" restricted="1">
    <dc:title>01 - Don't Know Why</dc:title>
    <upnp:class>object.item.audioItem.musicTrack</upnp:class>
    <res duration="0:00:00.000" bitrate="0" sampleFrequency="0" nrAudioChannels="0"
         protocolInfo="http-get:*:audio/x-dsf:*">http://10.0.1.22:8200/MediaItems/143.dsf
    </res>
  </item>
  <item id="1$4$6B" parentID="1$4" restricted="1">
    <dc:title>Blank Space</dc:title>
    <upnp:class>object.item.audioItem.musicTrack</upnp:class>
    <dc:creator>Ryan Adams</dc:creator>
    <dc:date>2015-01-01</dc:date>
    <upnp:artist>Ryan Adams</upnp:artist>
    <upnp:album>1989</upnp:album>
    <upnp:originalTrackNumber>2</upnp:originalTrackNumber>
    <res duration="0:03:21.695" bitrate="5057078" sampleFrequency="192000" nrAudioChannels="2"
         protocolInfo="http-get:*:audio/x-flac:*">http://10.0.1.22:8200/MediaItems/174.flac
    </res>
    <upnp:albumArtURI>http://10.0.1.22:8200/AlbumArt/69-174.jpg</upnp:albumArtURI>
  </item>
  <item id="1$4$8E" parentID="1$4" restricted="1">
    <dc:title>Christmas Card</dc:title>
    <upnp:class>object.item.audioItem.musicTrack</upnp:class>
    <dc:creator>Joyce Manor</dc:creator>
    <dc:date>2014-01-01</dc:date>
    <upnp:artist>Joyce Manor</upnp:artist>
    <upnp:album>Never Hungover Again</upnp:album>
    <upnp:originalTrackNumber>1</upnp:originalTrackNumber>
    <res duration="0:02:05.440" bitrate="128000" sampleFrequency="44100" nrAudioChannels="2"
         protocolInfo="http-get:*:audio/mpeg:DLNA.ORG_PN=MP3;DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000">
      http://10.0.1.22:8200/MediaItems/216.mp3
    </res>
    <upnp:albumArtURI>http://10.0.1.22:8200/AlbumArt/104-216.jpg</upnp:albumArtURI>
  </item>
  <item id="1$4$98" parentID="1$4" restricted="1">
    <dc:title>Sol Luna</dc:title>
    <upnp:class>object.item.audioItem.musicTrack</upnp:class>
    <dc:creator>Broken Social Scene</dc:creator>
    <dc:date>2017-01-01</dc:date>
    <upnp:artist>Broken Social Scene</upnp:artist>
    <res duration="0:01:19.800" bitrate="1411200" sampleFrequency="44100" nrAudioChannels="2"
         protocolInfo="http-get:*:audio/x-wav:*">http://10.0.1.22:8200/MediaItems/232.wav
    </res>
  </item>
</DIDL-Lite>

You can see from the MPD payload that we get no metadata for AIFF, DSD, and MP3 files, and the 'Album' information is missing from WAV files. The situation is much better when you look at the DLNA payload, since we now have the full metadata for MP3 files, and we also have a network address to download the DSD and WAV files to manually parse the missing metadata and retrieve the original cover art directly in Glider. Unfortunately AIFF files are left out of the DLNA payload entirely.

I hope that helps to describe a bit more about what's going on here.

I see your conundrum, and now I can imagine how much work it would take to get the metadata from one protocol, and the file path from the other to be able to construct GoFigure-compatible playlists.
 
Aug 25, 2018 at 11:29 AM Post #10,746 of 18,748
Hi

I tried the Gofigure with the Galaxy S9+, and it works reasonably well, with some inestabillty compared to IOS, but not much difference.

But I bought a A&Norma SR15 in Vancouver on Monday and works very well, does everything the Poly-Mojo is supposed to do, with no flaws, the sound quality is almost as good as the Mojo, even you can connect the Mojo through a otg cable. What surprises me is that all the issues we are discussing here are solved with the SR-15 using the AK connect software from the first day, while I have been fiddling around with the Poly for many months without getting a solution to the problems, Chord should learn from AK how to develop a good product for audiophiles, that doesn’t needing to be a software engineer to listen music.

Patricio
 
Aug 25, 2018 at 12:44 PM Post #10,747 of 18,748
It certainly seems simple enough to replace the battery from the photos of mojo innards going about. The battery isn't soldered or glued in.
Apparently you'd need this:
https://www.hifipro.ca/product/chord-electronics-mojo-original-battery-replacement-accessories

Incidentally here's @Mojo ideas on the Mojo's battery:
"No the batteries are expected to last far longer than three years. The batteries in our designs are not subject to damaging deep discharge cycles or anything more than very light current demand .... Batteries used for power tools are quite a different matter, but in our units expect a life of greater than ten years. Mojo has a plug on it so it's just an easy replacement for a shop technician Hugo batteries will need soldering in place though but this is also a low skilled job which would be require rarely if ever."
John Franks.

Maybe mojo but not hugo, many people have had to have their hugo’s battery replaced. So i have read.

I would not rely on what John says regarding the battery, not because of any disinformation, but just the fact batteries do die with use.

A good pointer to that is, my Hugo 2, it comes with a 3 year warranty but, the batteries inside are only covered by an 18 month warranty.

It’s just life, batteries die or end up not holding a big charge. If anyone one is thinking about buying anything with a battery, just think “batteries need replacing” whatever it is.
 
Aug 25, 2018 at 1:11 PM Post #10,748 of 18,748
Maybe mojo but not hugo, many people have had to have their hugo’s battery replaced. So i have read.

I would not rely on what John says regarding the battery, not because of any disinformation, but just the fact batteries do die with use.

A good pointer to that is, my Hugo 2, it comes with a 3 year warranty but, the batteries inside are only covered by an 18 month warranty.

It’s just life, batteries die or end up not holding a big charge. If anyone one is thinking about buying anything with a battery, just think “batteries need replacing” whatever it is.
Couldn't agree more. Just thought it was ridiculous claiming a 10 year life span!
 
Aug 25, 2018 at 2:49 PM Post #10,749 of 18,748
I tried the Gofigure with the Galaxy S9+, and it works reasonably well, with some inestabillty compared to IOS, but not much difference... But I bought a A&Norma SR15 in Vancouver on Monday and works very well, does everything the Poly-Mojo is supposed to do, with no flaws, the sound quality is almost as good as the Mojo, even you can connect the Mojo through a otg cable. What surprises me is that all the issues we are discussing here are solved with the SR-15 using the AK connect software from the first day, while I have been fiddling around with the Poly for many months without getting a solution to the problems, Chord should learn from AK how to develop a good product for audiophiles, that doesn’t needing to be a software engineer to listen music.

I know a few guys whom I consider to be 'true' Audiophiles that go to extraordinary equipment lengths to squeeze the last bit of sound from a Album/recording, they respect my 'portable' fetish but no way am I in the same league as them (I don't do £500 gold fuses)... I'm glad your enjoying you new product from a certain brand, I can remember when they released their first DAP, it was a pretty buggy affair but had a good sound apparently (not that I heard it), for the main it was Head-Fi'ers who sorted the problems (same with the early iBasso's). No doubt the software has now been developed, with initial help of Head-Fiers, that allows you to enjoy your new purchase.

Yes there are problems with Poly though now the Beta-program is up and running hopefully problems & issues will be sorted with the help of Head-Fi'ers... if you are not participating in the Beta-program could I urge you sign-up and get involved.

Link: https://docs.google.com/forms/d/e/1FAIpQLScvm6CApPq8y03HLl50UfsmQ3jKtICzg-CkEILqCA3H6pyzBg/viewform
 
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Aug 26, 2018 at 12:45 PM Post #10,750 of 18,748
I know a few guys whom I consider to be 'true' Audiophiles that go to extraordinary equipment lengths to squeeze the last bit of sound from a Album/recording, they respect my 'portable' fetish but no way am I in the same league as them (I don't do £500 gold fuses)... I'm glad your enjoying you new product from a certain brand, I can remember when they released their first DAP, it was a pretty buggy affair but had a good sound apparently (not that I heard it), for the main it was Head-Fi'ers who sorted the problems (same with the early iBasso's). No doubt the software has now been developed, with initial help of Head-Fiers, that allows you to enjoy your new purchase.

Yes there are problems with Poly though now the Beta-program is up and running hopefully problems & issues will be sorted with the help of Head-Fi'ers... if you are not participating in the Beta-program could I urge you sign-up and get involved.

Link: https://docs.google.com/forms/d/e/1FAIpQLScvm6CApPq8y03HLl50UfsmQ3jKtICzg-CkEILqCA3H6pyzBg/viewform

Yes, I am participating in the program, my Poly since the first software update cannot be configured through the web page, so I can only with Gofigure, I still prefere the sound of the Poly-Mojo, and I won’t give up, so I will contact the local dealer in Chile, where I bought the Poly, to replace my Poly. Now that I am back in Chile. The dealer is a very nice guy.

I bought my Poly in September last year, so I will continue helping to improve the Poly, but 11 month is much time in this days to improve a product.

Meanwhile, I will be using the Poly-Mojo at home, and using the A&Norma SR15 for traveling, and maybe with the Mojo.

Patricio
 
Aug 26, 2018 at 1:07 PM Post #10,751 of 18,748
Yes, I am participating in the program, my Poly since the first software update cannot be configured through the web page, so I can only with Gofigure, I still prefere the sound of the Poly-Mojo, and I won’t give up, so I will contact the local dealer in Chile, where I bought the Poly, to replace my Poly. Now that I am back in Chile. The dealer is a very nice guy.

I bought my Poly in September last year, so I will continue helping to improve the Poly, but 11 month is much time in this days to improve a product.

Meanwhile, I will be using the Poly-Mojo at home, and using the A&Norma SR15 for traveling, and maybe with the Mojo.

Patricio

Hi! Where did you buy your poly in Chile?
 
Aug 26, 2018 at 2:01 PM Post #10,752 of 18,748
Hi! I`ve bought Poly second hand. Now, I`m trying to connect to it using Wi-Fi but the connection is secured - it requires a password and I cannot get to Poly start page. I`m using Android, so GoFigure app is not available for me yet. Does anybody got a clue what I should do?
 
Aug 26, 2018 at 2:59 PM Post #10,753 of 18,748
Poly is out of the drawer and back in play, and I suspect it may be back for the long run.

There was a post about this in the first 100 pages--maybe the first 50--but it took me six months to try it.

Teaming the Poly/Mojo with a WD My Passport Wireless Pro has solved every problem I ever had. GoFigure was able to see and connect to the WD's Wi-Fi network. AirPlay is bypassed, so every PCM resolution from 44.1/16 to 192/24, plus DSD 64, all play natively. Glider can find every track, regardless of whether it's on the iPhone 8, Poly's SD card, or the WD drive.

So far, no hiccups of any kind. Warning: if you store your music library on a Mac system, you may need to invest $20 in a copy of Paragon NTFS software in order to drag and drop files to the WD drive (the WD manual says it's included on the drive, but it wasn't on mine). The 3Tb drive can now be had for as little as USD 109.95 (Fry's).

I was ready to give up on Mojo/Poly a month ago, and invest the sale proceeds in a DAP. Now I'm glad I didn't.
 
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Aug 26, 2018 at 3:24 PM Post #10,754 of 18,748
Hi! I`ve bought Poly second hand. Now, I`m trying to connect to it using Wi-Fi but the connection is secured - it requires a password and I cannot get to Poly start page. I`m using Android, so GoFigure app is not available for me yet. Does anybody got a clue what I should do?
Sign up for the android beta-test program.
https://www.head-fi.org/threads/cho...on-1st-page-◄★☆.831347/page-707#post-14426125
Hopefully that will enable you to get connected.
All feedback is useful for Chord.
 

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