Cyngn, OnePlus, Micromax – The Legal Battle

Recently, a battle has been waging in India over the rights to distribute the commercial … more

Lean Mean Battery Power Saving App Review

We talk a lot about battery topics here at XDA TV. We talk about everything from Power Banks to USB … more

Android 5.1 Possibly Coming February 2015

Google released Android 5.0 just over a month ago, and since then Lollipop has been trying to … more

Double Tap to Wake on the Nexus 6 Without Root

A few weeks ago, we featured an app which allowed the Nexus 6 to regain the double tap to wake … more

Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

Archos G9 ICS & USB DAC

OP danba

10th March 2012, 10:04 AM   |  #1  
OP Senior Member
Thanks Meter: 88
 
175 posts
Join Date:Joined: Jun 2008
Is Archos G9 ICS still compliant with USB DAC?
http://update.archos.com/9/gen9/chan...id_gen9it4.htm

"Version 3.2.77 - December 6th, 2011
Accessories: external USB audio cards (DAC) support has been added"

. Archos G9 & USB speaker Logitech
http://forum.archosfans.com/viewtopic.php?f=84&t=60183




. Archos G9 & USB DAC/amp FiiO E17
http://www.jbmm.fr/2012/01/utiliser-...ec-son-archos/

The Following 2 Users Say Thank You to danba For This Useful Post: [ View ]
10th March 2012, 10:10 AM   |  #2  
OP Senior Member
Thanks Meter: 88
 
175 posts
Join Date:Joined: Jun 2008
About external USB DAC

A higher dimensions music!

Impressions of a guy upgrading his PC rig
from
PC > PC sound card Creative XFI Xtreme Music (i.e. not a stock PC card!) > headphone Audio-Technica ATH-AD700
to
PC > USB DAC/amp FiiO E17 > headphone Audio- Technica ATH-AD700:


"Anyway, I got on to a lot of forums and found HeadFi (Yes, say goodbye to your wallet!). Never fully understood the world of Dac's and Amp's I started my research!

I searched the forum's and felt there was a few people in the same position as me who were feeling unsure about an alternative to PC sound card's, so I decide to the plunge!

Yes I could have grabbed an Asus ST/STX or Creative Tit HD but I wanted to go a different direction, so I went with the Fiio E17.

Conclusion: Done the whole unboxing and setup that everyone has probably seen, plugged her in to the computer and ran it through her paces!

I listen to various music from Classical, Rock, Pop, electronic, using mainly FLAC files.

Sound quality compared to the Xtreme Music was overall a big improvement!

The sound was full and warm! I immediately felt like I was listening to (what I describe as) a high end Hifi system!

It's very reassuring as I come from a Creative product to something totally different as in the Fiio and be in awe about what I'm hearing.

The Fiio sounds like a professional athlete compared to say an amateur running a marathon, well paced full of energy and doing what it loves doing, where as the Creative was more like a weekend warrior!"
http://www.head-fi.org/t/587912/fiio...0#post_8175638



About digital audio

A digital audio system is composed of:


. A storage module: Music is stored in file as a series of bits 0 & 1 with different encoding formats (MP3, WAV, FLAC…).
. A player: The player decodes the bits 0 & 1 to PCM digital audio signals.
. A DAC (Digital to Analog Converter): The DAC converts the PCM digital audio signals to the original analog audio signals.
. An amplifier: The amplifier amplifies the analog audio signals.
. A speaker: The speaker restitutes the music.

Like a PC or a Mac, an Android device is a digital audio system.



An Android device running on a kernel with a USB audio driver, like a PC or a Mac, can output the PCM digital audio stream to an external standard USB DAC & amplifier & headphone, much more efficient than the internal DAC & amplifier & speakerphone.



extracted from the official request to Google for enabling USB audio:
http://code.google.com/p/android/iss...ummary%20Stars
The Following User Says Thank You to danba For This Useful Post: [ View ]
15th March 2012, 09:34 PM   |  #3  
OP Senior Member
Thanks Meter: 88
 
175 posts
Join Date:Joined: Jun 2008
"Here is an update for all audiophiles who are interested in this topic:
The Android 4.0.4 update fixed the USB DAC issue with the 101 G9. The USB DAC is now available, and audio playback goes to the external DAC when connected.

Please note the following restrictions:

(1) USB audio playback shows some glitches (for example, during network access, harddisk access, high CPU load). I even observed some pitching under CPU load. But it generally works, best performance is with local file access. As expected, audio quality via external DAC is a lot better than the internal headphone connector (which - to my ears - sounds remarkably bad, even my old Nokia phone sounds significantly better).

(2) The USB DAC works at the USB host connector only. It does not work at the 3G USB port - while a harddisk does work at the 3G port. This means that you can listen to the USB DAC only for as long as the battery is up. You need to disconnect the DAC while charging.

Alternatively, you need to get the 101 version with internal harddisk - as this is supposed to have a dedicated power supply connector."
http://forum.archosfans.com/viewtopic.php?f=85&p=393834
19th March 2012, 02:55 PM   |  #4  
benoitb85's Avatar
Senior Member
Flag Bacon le Gruyère
Thanks Meter: 14
 
268 posts
Join Date:Joined: Nov 2007
More
I should try it, it looks fun.
I have a FiiO E10 and Sennheiser HD600.
19th March 2012, 04:49 PM   |  #5  
cajl's Avatar
Senior Member
Flag near PARIS (94)
Thanks Meter: 167
 
838 posts
Join Date:Joined: May 2008
Donate to Me
More
Super, these photos came from my website
http://www.jbmm.fr

it is very great to use the DAC Fiio !
20th March 2012, 02:30 PM   |  #6  
benoitb85's Avatar
Senior Member
Flag Bacon le Gruyère
Thanks Meter: 14
 
268 posts
Join Date:Joined: Nov 2007
More
I tried it yesterday, and it doesn't work for me with the E10.

The first time I plug it, the E10's LED turns blue (looking good). But either I get no sound at all from the speaker and the headphones either the tablet just freezes.

I'm using 4.0.4 with a 80G9 ES2.3.

What is your setup Cajl ?
20th March 2012, 04:20 PM   |  #7  
cajl's Avatar
Senior Member
Flag near PARIS (94)
Thanks Meter: 167
 
838 posts
Join Date:Joined: May 2008
Donate to Me
More
Ok i see that this night or tomorrow
what is your output ?
20th March 2012, 10:36 PM   |  #8  
OP Senior Member
Thanks Meter: 88
 
175 posts
Join Date:Joined: Jun 2008
Quote:
Originally Posted by benoitb85

I tried it yesterday, and it doesn't work for me with the E10.

As far as I know, the FiiO E10 is USB bus-powered, like the Creative X-Fi USB.

"(3) Creative X-Fi USB:
This is USB bus powered, and does not work when directly connected to the tablet.
You need to connected via self-powered USB hub, then the USB link is established, and playback changes to the external DAC."
http://forum.archosfans.com/viewtopic.php?f=85&p=393834


"Why do some devices REQUIRE an external hub?
The maximum current the Nook [and likely the Archos G9] can supply is 100mA
If your usb device require more than 100mA , External hub is REQUIRED"
http://forum.xda-developers.com/show....php?t=1459892
21st March 2012, 10:32 AM   |  #9  
cajl's Avatar
Senior Member
Flag near PARIS (94)
Thanks Meter: 167
 
838 posts
Join Date:Joined: May 2008
Donate to Me
More
i have no problem with the FiiO17 on the Archos gen9

see those photos !

I'm using 4.0.5 with a 80G9 ES2.1 and 101G9 ES2.2
The Following User Says Thank You to cajl For This Useful Post: [ View ]
24th March 2012, 03:57 PM   |  #10  
OP Senior Member
Thanks Meter: 88
 
175 posts
Join Date:Joined: Jun 2008
Quote:
Originally Posted by cajl

i have no problem with the FiiO17 on the Archos gen9

So, you don’t have crackles and glitches as related by Earlgrey in the forum.archosfans.
http://forum.archosfans.com/viewtopic.php?f=85&p=393834

In the iPod/iPhone & USB audio world, some weird clicks and pops while listening to music are gone after an iPod/iPhone restore/reboot.
http://www.head-fi.org/t/542062/cyph...5#post_7452849

Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes