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DAC II

4,317 bytes added, 20:33, 20 September 2019
{{GD Template Impl}}

[[File:Dac-ii-IMG-4377.jpg|thumb|right|DAC II]]
[[File:Dac-ii-IMG-4378.jpg|thumb|right|DAC II]]
[[File:Dac-ii-IMG-4383.jpg|thumb|right|DAC II]]
[[File:IMG 4434.jpg|thumb|right|Acrylic Case for Dac II]]
==Overview==

DAC II is the last HAT size Raspberry pi player, and it's support the lossless music format such as <span style="color:red">DSD/DXD,FLAC,APE,WAV</span>. and DAC II use the ES9018K2M from Ess Technology Inc as decode chip. and sampling rate is up to 384 kHz/32-bit.

Supports raspberry pi 4 model b, and tested;

== Features: ==
* Bit Perfect, Support up to 32Bit/384kHz
* High-performance ES9018K2M DAC Chip
* Built-in 5V Voltage Swing Headphone AMP
* 3.5mm Headphone Output and Line Out(RCA)
* Support Digital Volume Control
* Support DSD256/128/64; 32Bit/384KHz(PCM)
* Audio Formats Supported: <span style="color:red">DSD, APE, FLAC, WAV</span>, WMA, AAC, ALAC, AIFF, OGG, MP3
* Support IR control;

== Specification ==
=== Line out: ===
* Frequency Response: 20Hz~20KHz +/-0.1dB
* S/N: -119dB +/-1dB
* THD+N: -120dB
* DNR: 127dB

=== Headphone out: ===
* Frequency Response: 20Hz~20KHz +/-0.1dB
* THD+N: 0.0021% (16ohm load)
* Output Level: 138mW(+4dB gain)
* SNR: 93dB
* PSSRR: >100dB
* CMRR: 69dB

==IR control guide==
* Please refer to [[IR control guide]]

==How to use==
<span style="color:red">'''Note:'''</span>

<span style="color:red">Only support VOLUMIO and Raspbian now, and you need use the last customized volumio version form us. </span>
=== <span style="color:blue">How to Play the Lossless Music by customized Volumio from us?</span> ===
Please download the last customized volumio from here: https://sourceforge.net/projects/u-geek/files/HIFI/, Download the img file which we provided, unzip and burn it into the micro sd card.

Insert the card to Raspberry Pi, connect the Raspberry pi to network.

Manage the sound card by web page.

'''Setting:'''

Set the I2S DAC to "On";

Select "Aoide DAC II" as the Output device;

Select "Aoide DAC II" as the DAC Modle;

Save and reboot.

You can refer to the following picture.

[[File:DAC-II-Setting-3.jpg]]

=== <span style="color:blue">How to config the DAC II base on the official Raspbian system? </span>===
We commit the shell script on the github, you only need to execute the following shell command to finish the installation.

curl -L --output ./dac_install.sh https://github.com/howardqiao/aoide-dac-drivers/raw/master/dac_install.sh
sudo chmod +x ./dac_install.sh
sudo ./dac_install.sh
reboot
=== <span style="color:blue">How to config the DAC II base on the DitePi?</span>===

Step 1: install & config the DitePi, please refer to here : [https://dietpi.com/phpbb/viewtopic.php?f=8&t=9#p9 DitePi Getting started]

Step 2: config DAC II;
curl -L --output ./dac_install.sh https://github.com/howardqiao/aoide-dac-drivers/raw/master/dac_install.sh
sudo chmod +x ./dac_install.sh
sudo ./dac_install.sh
reboot

[[File:DietPi-config-3.jpg]]

[[File:DietPi-config-1.jpg|how to config DietPi?]]

[[File:DietPi-config-2.png|how to config DietPi?]]

==Download Resource==
* [https://sourceforge.net/projects/u-geek/files/HIFI/ Volumio version]
* [https://sourceforge.net/projects/u-geek/files/HIFI/Volumio2.378-2018-03-15-pi-ir.img.gz/download Volumio2.411-2018-06-29-pi-ir.img.gz]

==Play view==
[[File:DAC-II-Setting-1.jpg]]

[[File:DAC-II-Setting-2.jpg]]

== Acrylic Case==
<gallery>
IMG_4434.jpg|
IMG_4437.jpg|
IMG_4441.jpg|
</gallery>

===How to install===
[[File:Dac-ii-w800.jpg|how to install dac ii acrylic case?]]

==FAQ==
Q1: Why My DAC card shows ALSA fault?


A:

1. This is a compatibility issue of VOLUMIO system. and we fund some related issues about ALSA on VOLUMIO.ORG.
Here also is anything we search on google: https://cse.google.com/cse?cx=partner-pub-0839303782430158:6119498809&q=ALSA%20&oq=ALSA%20&gs_l=partner-generic.12...1677.1677.0.2228.0.0.0.0.0.0.0.0..0.0.gsnos%2Cn%3D13...0.46j2116j2...1.34.partner-generic..0.0.0.

2. We recommend not to open the alsa option, otherwise it will result in the loss of the driver (configuration) file. in fact, this audio board supports hardware to adjust the volume. If the system fixes this problem, we will post a message on the wiki, please pay attention to our wiki.

[[Category:Product Manual]]
[[Category:Raspberry pi]]
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