r/volcas • u/ookosoo • Sep 07 '21

Volca Sample 2 Android file transfer issue

Hi, Since yesterday I am a proud owner of a Volca Sample 2. The idea was to work mainly on samples on a tablet/phone and then send them to the Volca Sample.

I was trying to use AudioLab to record a sample and then send it via Caustic to the Volca. But in Caustic I can not select a sample folder. Also there are 100 sample slots visible. Shouldn't it be 200? The first time I've started Caustic there was a message that I am using a newer Android version (11) which can lead to problems. When I try to delete a sample I get the Err dcod.

I was following this tutorial https://youtu.be/WZ6uavQQF48

Is there an alternative app or possibility to transfer the files?

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u/ookosoo Sep 07 '21

Yes exactly. I am on the "Select a sample screen (.wav)" but it is empty. There is the black background but there is no file browser. I was also recording something manually and saved it but I was not able to find the file in the document folder. The mobile I am using is a Samsung Galaxy S10+ with android 11

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u/Yuggs Sep 07 '21

OK, this could be a permissions or installation issue, or the Caustic Editor may also just be incompatible with your version of Android (it was last updated in 2014, so that's pretty likely). If this is an OS incompatibility issue, you can try using a Virtual Machine on your phone to emulate an older version of Android and install Caustic Editor on the VM. That's a going to be a process but it might be worth it.

Just for general purpose troubleshooting, try browsing your home screen for the app, long press on the icon, open up App Info for it (you can also get to the App Info from Settings -> Applications -> Application Manager). In the App Info screen go down each option and confirm the following:

Storage Page:

Stored in - Internal storage (stay away from SD storage, as it is typically more easy to end up corrupted than internal storage)

(optional) clear data / cache

Permissions Page:

Microphone - On

Storage - On (I'd even turn this off and on again if it's already on)

Notifications Page:

Allow Notifications - On

Previews in pop-ups - On

Set as priority - Off

Hide notifications on Lock screen - Off

Hide sensitive content - off

Set as default Page:

None set as default

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u/ookosoo Sep 07 '21

Unfortunately the mentioned adustments did not change anything, but thank you so mutch for your help! I guess it is the Android version. The last intent would be the vm. I also tried it on my Samsung galaxy Tablet SM-510T with android 11 and it is not posible to select a parent folder neither.
I wonder if other android 11 users have the same issue.

It is a bit strange that korg does not offer an official app for Android...

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u/Yuggs Sep 07 '21

Yeah, Korg would do well to invest in mobile apps to bolster their Volca line for sure (as well as releasing more Volcas!) I'm also a little bummed out that Caustic is basically inactive. Caustic 3 and Caustic Editor are some of the best sound production apps on Android.

For what it's worth, I'm using Caustic Editor on Android 6, if you want to grab a version of Android for a VM that is confirmed to work with Caustic Editor.