# Struggling with building kit v2 with Audioinjector Stereo \[SOLVED\]

**URL:** <https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970>\
**Category:** Building Zynthian\
**Created:** [June 7, 2018, 11:42pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970 "2018-06-07T23:42:52Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 7, 2018, 11:42pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/1 "2018-06-07T23:42:52Z")

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Hello Fernando,

First of all thank you for great synth - I had received the the kit in 10 days at Russia/Moscow and assembled everything 2 days ago. My choice was Audioinjector stereo card and it didn’t work when I have selected it via webconfig. I suspect that it is the wiring problem, so I have to relay the GPIO pins manually (have read the forum regarding similar configs)

Never the less, I had a chance to play with Zinthian for two days with external usb card - worked fine (with reasonable latency and some rare dropouts on Pianoteq) but from tonight it gives me an error on the white screen.

Amazing - I am completely surprised with the quality of some sounds, MOD-UI and everything - crazy cool !  
I was dreaming of playing with Pianoteq with small setup on live sets before for more than 10 years, now dream comes true, thanks to you guys !!!

Back to my quest: with Audioinjector everything starts, encoders work, screen works but now sound.

Please advice me a course of action or redirect to the person on the forum to ask all my questions.

My config:  
Rpi 3 model B 2015  
Zynthian basic kit v.2  
ozzmaker piscreen 2  
audioinjector stereo card

Hope I am not violating forum rules by writing you directly.

Thanks a lot !

Yours,  
Andrei Demidenko

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**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\
**Post date:** [June 8, 2018, 9:28am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/2 "2018-06-08T09:28:44Z")

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Hi Andrei!

I think it would be better to open this thread to the community.  
Audioinjector Stereo is a tricky beast, sometimes hard to tame. I will try to help you as much as i can, but other members could contribute with useful tips too.

BTW, have you tried to adjust the levels using “alsamixer” from command line?

Kind Regards!

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**Author:** ![jofemodo](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jofemodo/32/2_2.png) [@jofemodo](https://discourse.zynthian.org/u/jofemodo)\
**Post date:** [June 8, 2018, 9:37am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/3 "2018-06-08T09:37:19Z")

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**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [June 8, 2018, 12:43pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/4 "2018-06-08T12:43:39Z")

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This is done by the webconf when you select Audioinjector.  
but using the Alsa sliders would be my first try as well.

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 8, 2018, 1:12pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/5 "2018-06-08T13:12:36Z")

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Webconfig was the first thing I tried and it helped me with the boot screen error and let me in to the main screen. But even with chosen audioinjector alsa doesn’t see it and there is still no sound. Usb audio also doesn’t work any more. Should I try with fresh image ? But I didn’t mess with configs much. !

 ![image](https://discourse.zynthian.org/uploads/default/original/2X/d/deb2217efbae123da9585df3353f2b9f9afd7929.jpeg)

My setup with temporal 3d printed box.

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 9, 2018, 3:08am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/6 "2018-06-09T03:08:15Z")

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Next step for me is to try if my audioinjector stereo works at all in separate setup (just with Raspbian distro or similar). And if it doesn’t! i will see from there further (maybe discuss hardware issues with the vendor). Hope I will make zynth work soon this way or another !

Thank you @jofemodo & @mheidt for your support !!!

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 9, 2018, 8:32am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/7 "2018-06-09T08:32:17Z")

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Fresh image with all the updates and the instructions from here [https://github.com/Audio-Injector/stereo-and-zero](https://github.com/Audio-Injector/stereo-and-zero) helped (both, drivers and alsactl commands).

Audioinjector works nicely now. Will submit to successful cases, when the project will be complete.

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**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [June 9, 2018, 3:14pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/8 "2018-06-09T15:14:41Z")

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Was ist necessary to install the .deb?  
Did you test it without installing it?  
If the new fresh and updated image didn’t work we have to integrate the script.  
My Audioinjector Zero works without the script.

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 9, 2018, 8:58pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/9 "2018-06-09T20:58:19Z")

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I have got an upgrade (New rpi3 B+ 2017 and Samsung EVO 32Gb MicroSD) to check the installation once again. It didn’t work out of the box for me after selecting Audioinjector (mine is stereo model) in webconfig.

Alsactl commands didn’t make any difference till I installed deb package with the scripts. Then commands work and everything starts working too. Didn’t have time to check the input yet. Will do 🙂

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**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [June 9, 2018, 9:22pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/10 "2018-06-09T21:22:00Z")

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It could be a B+ issue. My installation is 3B

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 9, 2018, 9:24pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/11 "2018-06-09T21:24:55Z")

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I’ve started zynthian with Rpi3B 2015, and same simptoms, so it is probably not just B+.

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**Author:** ![dhrupadiya](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/dhrupadiya/32/1440_2.png) [@dhrupadiya](https://discourse.zynthian.org/u/dhrupadiya)\
**Post date:** [June 11, 2018, 1:14pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/12 "2018-06-11T13:14:16Z")

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Anyway, I really hope my case will help the others with same configuration to get everything to work in no time. @mheidt, thank you very much for your support and input !

Right now I am in testing state and already have discovered some things to ask in forum.

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**Author:** ![lisacld](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/l/82dd89/32.png) [@lisacld](https://discourse.zynthian.org/u/lisacld)\
**Post date:** [October 4, 2018, 10:40am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/13 "2018-10-04T10:40:56Z")

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Hello,  
I recently bought a _Zynthian Bundle All Alu-case Kit v2_, I have assembled it in a few hours and it worked at the first trial.  
Thrilled by this immediate success, and having a working ‘reference’ unit, I decided to assemble a second, minimal, headless unit using some components I had lying around from a previous, aborted, try to build a Zynthian.

- RasPi 3B
- AudioInjector
- Anonymous 3.5’’ LCD with resistive touch screen  
plus:
- Mouse, Keyboard, USBMidi keyboard, monitor on HDMI, PC connected to ethernet.

First of all, without the physical interface I needed to force updates using the SSH command  
/zynthian/zynthian-sys/scripts/update\_zynthian.sh  
([http://wiki.zynthian.org/index.php/Zynthian\_Box\_Updating](http://wiki.zynthian.org/index.php/Zynthian_Box_Updating))  
At each boot I had to login to the router to see the IP address of the Zynthian, because it kept changing.

After a few iterations of the update process, I logged in again to the webconf page.

Only after having enabled the output of the sound card in alsamixer, I finally managed to hear the Audio test.  
Then, trying to move in the Zynthian GUI with mouse and touch screen, I managed to play with Aeolus and Dexed.

For the time being I’ve got the following issues:

- AudioInjector audio out only from 3.5’’ jack, nothing comes out from the 2 RCA pin jacks
- Touch screen X axis reversed, I’ve found no way to fix this
- No consistent way to use the GUI without the physical interface (reversed touch axis doesn’t help)
- Going back to the layer screen is something that just doesn’t happen when you want to.

My considerations:

- If you just want a working synthesizer, buy one of the official kits or build it around standard components
- In the case you want to experiment, AudioInjector seems to be the worst choice, considering that, as far as I understand, at the current state of the project there are no applications for the audio input. Choosing this board is looking for troubles.

Any suggestion to fix my problems is more than welcomed. In the meantime I’ll enjoy the _standard_ working unit. 😀

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**Author:** ![C0d3man](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/c0d3man/32/9_2.png) [@C0d3man](https://discourse.zynthian.org/u/C0d3man)\
**Post date:** [October 4, 2018, 10:50am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/14 "2018-10-04T10:50:47Z")

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> [@lisacld](#):
>
> After a few iterations of the update process, I logged in again to the webconf page.

You can try to connect to `zynthian.local`.

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**Author:** ![lisacld](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/l/82dd89/32.png) [@lisacld](https://discourse.zynthian.org/u/lisacld)\
**Post date:** [October 4, 2018, 10:52am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/15 "2018-10-04T10:52:50Z")

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Sadly, it doesn’t work, not even with the _official_ unit … I had to connect using IP.

(I have changed the name of the second unit to Zynthian\_two)

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**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [October 4, 2018, 11:04am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/16 "2018-10-04T11:04:26Z")

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Audioinjector: try to use the alsa volume mixer in webconf. It is mute by default  
Display: search the forum and the page of your display. Consider that the visual orientation and the touch matrix are 2 different settings.

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**Author:** ![lisacld](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/l/82dd89/32.png) [@lisacld](https://discourse.zynthian.org/u/lisacld)\
**Post date:** [October 4, 2018, 11:13am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/17 "2018-10-04T11:13:18Z")

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I only opened the alsamixer from the ssh console, is there a way to access it via webconf?  
I did not even know that the 2 outputs (3.5 jack and RCA pins) were separate. I couldn’t find the schematics but I took for granted that they were just the same hardware out either in parallel or just decoupled but not separate mixer channels.

Anyway messing with the alsamixer from console didn’t enable the RCA outputs.

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**Author:** ![lisacld](https://discourse.zynthian.org/letter_avatar_proxy/v4/letter/l/82dd89/32.png) [@lisacld](https://discourse.zynthian.org/u/lisacld)\
**Post date:** [October 4, 2018, 11:19am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/18 "2018-10-04T11:19:15Z")

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As far as the touch screen is concerned, I just fiddled with the rotation parameter in the webconf, but rotating the display took along the touch screen rotation.  
At some point I had the display upside down and the touch screen with x/y exchanged. 🤔  
Is there a way to configure this by editing some config file from console?

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**Author:** ![jonathaslacerda](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/jonathaslacerda/32/1370_2.png) [@jonathaslacerda](https://discourse.zynthian.org/u/jonathaslacerda)\
**Post date:** [October 5, 2018, 1:45am UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/19 "2018-10-05T01:45:57Z")

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To get audioinjector working in my zynthian build, I’ve needed to run these commands:

1. wget [https://github.com/Audio-Injector/stereo-and-zero/raw/master/audio.injector.scripts\_0.1-1\_all.deb](https://github.com/Audio-Injector/stereo-and-zero/raw/master/audio.injector.scripts_0.1-1_all.deb)
2. sudo dpkg -i audio.injector.scripts\_0.1-1\_all.deb
3. audioInjector-setup.sh
4. reboot
5. alsactl --file /usr/share/doc/audioInjector/asound.state.RCA.thru.test restore
6. reboot

> [@Starting my zynthian build: alternative LCD, DAC, encoders](https://discourse.zynthian.org/t/starting-my-zynthian-build-alternative-lcd-dac-encoders/1874/25):
>
> In my case, I’m using just audioinjector stereo and LCD Waveshare 3.5A. All worked perfectly on raspbian. Now I have the touch working, but with X axis inverted. I have a good update: have flashed with the Zynthian Gorgona, updated it, and installed the audioinjector .deb package, following the instructions from [https://github.com/Audio-Injector/stereo-and-zero:](https://github.com/Audio-Injector/stereo-and-zero:) wget [https://github.com/Audio-Injector/stereo-and-zero/raw/master/audio.injector.scripts\_0.1-1\_all.deb](https://github.com/Audio-Injector/stereo-and-zero/raw/master/audio.injector.scripts_0.1-1_all.deb) sudo dpkg -i audio.injector.…

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<div class="post-metadata">

**Author:** ![mheidt](https://discourse.zynthian.org/user_avatar/discourse.zynthian.org/mheidt/32/773_2.png) [@mheidt](https://discourse.zynthian.org/u/mheidt)\
**Post date:** [March 24, 2019, 5:20pm UTC](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970/21 "2019-03-24T17:20:55Z")

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@dhrupadiya, @lisacld

There was a bug in the webconf.  
Now when you select Audioinjector in the audio panel, the mute issue is solved.

[Next page](https://discourse.zynthian.org/t/struggling-with-building-kit-v2-with-audioinjector-stereo-solved/1970.md?page=2)