Reading the audio volume

sandberg · Post by **sandberg** » Mon Dec 19, 2005 7:31 am

Hi,

Does anybody know if it is possible to read the volume level on the PSP ? I haven't been able to find anything from the pspsdk or otherwhere on the net.

sandberg · Post by **sandberg** » Wed Dec 21, 2005 3:19 am

Anyone ? I really could use some hints here, if anyone knows how to do this.

weak · Post by **weak** » Wed Dec 21, 2005 8:31 am

as far as i know you can't read the volume level. but that's not a problem at all, you just have to set the volume as you like it at the start of your app.

the volume buttons on the psp only adjust the overall volume level and you can still set the volume for each hardware channel as you like.
you can set the volume with sceAudioChangeChannelVolume(int channel, int leftvol, int rightvol). 32768 (0x8000) is the max volume.

dot_blank · Post by **dot_blank** » Wed Dec 21, 2005 9:34 am

also worth noting on a 2.0 psp
the overall audio is always reset to max (0x8000)
on psp startup so you should stray away
from using the maximum volume for your
app on boot ....16,384 (0x4000) is a good base volume
per channel

OT: on 2.0 psp when an app is put into
sleep mode a number of problem are present
including the sound driver not even initializing
have any others experienced sound problems
on 2.0 as well?

thanx in advance
cheers ;)

sandberg · Post by **sandberg** » Wed Dec 21, 2005 3:01 pm

Thanks,

I was interested in also being able to read the volume level being set from the volume buttons. It is done on the home menu, so I just guessed that it was possible somehow.

If I just display the volume set by the application, it will not be shown correct when the user, starts to set it by using the volume buttons.

groepaz · Post by **groepaz** » Thu Dec 22, 2005 9:40 pm

i guess the idea is that an app generally doesnt alter the global volume, which makes sense actually.

raf · Post by **raf** » Fri Dec 23, 2005 1:40 am

groepaz wrote:i guess the idea is that an app generally doesnt alter the global volume, which makes sense actually.

Right, but we don't want to alter the global volume, just display the current volume to the user when they press the volume buttons; this is for PSPRadio, and as being an audio application, it would be natural to be able to give volume feedback to the user; just didn't know how to query it; any ideas?

Raf.

groepaz · Post by **groepaz** » Mon Jan 02, 2006 11:46 am

no idea.... i *think* that the "proper" way to do this is registering some kind of callback simelar to the home button callback which will then call some kernel/system function that displays the volume "the psp way".

Fanjita · Post by **Fanjita** » Sun Feb 05, 2006 10:11 am

Possibly something in sceImpose ?