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#1 Re: Openspace3D » Audio not working on raspberry pi Zero W » 27-Nov-2017 11:30:01

Thank you for the reply,
starting from your tips I managed to make it work properly. The file format to play is mp3, I had pulseaudio already installed and it was the default output from alsamixer. I tried removing pulseaudio to start from a clean situation and move forward from that... and that's it, It worked.

#2 Openspace3D » Audio not working on raspberry pi Zero W » 24-Nov-2017 18:18:13

andiy88
Replies: 3

Hi all,

I was triyng to add an audio in an AR application using the onFound and Lost events of  an AR Marker like in the AR piano example. Everything works fine on my windows development platform, but when I try to export the project to a raspberry pi Zero audio is not playing as expected. With the obvious differences in terms of computing power and delay in marker recognition, everything else is working fine on the Raspberry.
Some useful further details:
The Raspberry is running the latest OS version;
audio reproduction is fine on the Raspberry pi Zero via vlc, browser or omxplayer through hdmi.
Any help is appreciated.

#3 Re: Openspace3D » AR app for wearable » 21-Nov-2017 15:30:03

Thank you for your quick reply. I will try to do as you suggest, if possible. At least I know for certain it can't be achieved through some kind of setting in OS3D

#4 Re: Openspace3D » AR app for wearable » 21-Nov-2017 12:51:09

It's a custom one actually under development, the core processing unit is a raspberry pi Zero linked to the optics via hdmi. I tried with no luck to set a transparent plane under the scene, with a custom material with transparent setting checked and opacity set to zero.

#5 Openspace3D » AR app for wearable » 21-Nov-2017 11:12:16

andiy88
Replies: 4

Hi,

I'm triyng to develop an Augmented reality demonstration app for wearable glasses, so what you usually would display on a screen has to be showed on the visor of the glasses which is transparent and allows the user to see through it. My purpose is to show augmented reality objects or labels when the integrated camera identifies a certain marker and I was able to do this even disabling what the camera is actually "seeing" beacause the user can do the same with its own eyes. But removing the camera preview, the problem is that the AR objects are now showing fluctuating in a blank space, with a grey or black solid background,  thus covering the field of view of the glasses. My question is: is it possible to show only augmented effects with some kind of transparent background to fit my use-case? Thank you

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