search

kr15h / ofxPiMapper

Projection mapping addon for openFrameworks that works on the Raspberry Pi
http://ofxpimapper.com
Other
465 stars 93 forks source link

Try to adjust volume but still seem not much louder #184

Open yao-bite opened 3 years ago

yao-bite commented 3 years ago

Hello, I'm new here. First thanks for the amazing mapping tool!

My problem is, after trying my video audio seems to work pretty good, but in very small volume. At first I thought the problem was the audio track itself, but then after trying to play only one video (with same volume audio output) with other code ( which uses omxplayer) I found that while using ofxPiMapper, the audio volume is much smaller.

I also have tried to adjust the volume with these steps: "Open alsamixer. alsamixer Set the volume to a value between 90 to 100 by using the arrow keys. ESC to exit the mixer." But seems no big difference between 50 and 100.

Was there something that I missed?

kr15h commented 3 years ago

Hi. Sorry, I have not bumped into this issue myself. What I could assume is that omxplayer has its own way of setting the volume and it could be that one should be able to define it via code.

magdesign commented 3 years ago

Before compiling change the volume settings in: ofxOMXPlayer/src/ofxOMXPlayerSettings.h => initialVolume from 0.3 to 0.5

Then you have 100% volume.

magdesign commented 2 years ago

Does anyone know how to adjust the volume when mapper is playing over 3.5 mm jack (bcm2835) ? Since adjusting the volume in alsamixer does not make any changes.

It seems to be implemented in ofxOMXplayer, so we need to send some kind of dbus command, but how? or any other nice hacks/workarounds?

https://github.com/jvcleave/ofxOMXPlayer/issues/21