Music Playback in Rockboy

[Machete234]

Hi everybody I'm new 

I like to play games while listening to music somehow this way time flies by faster so I like the games that can do that.
Somehow I can enjoy both at the same time.

Would this be possible in rockboy or does the CPU work a lot allready for the emulation?
The sound in gameboy Roms is not so crucial the same goes maybe for doom.

Or another question: Is there a different version of tetris for rockbox that uses more of my screen.
The gbc version of tetris uses slightly more so I prefer that ATM but there is no music playback of course.

[Llorean]

Rockboy already allows you to listen to music on some players where it's possible. Since you don't mention which player you have, I don't have a guess as to why it's not enabled on yours, but there's probably a reason it's not possible.

[Machete234]

Oh yes I forgot it's a sansa fuze.  

What players can do this maybe I can obtain one for a reasonable price?

[Llorean]

It would be much, much cheaper to buy a used Gameboy and play it while listening to your MP3 player (and the batteries would last longer too).

[lionfury]

It would be much, much cheaper to buy a used Gameboy and play it while listening to your MP3 player (and the batteries would last longer too).

Or buy a cheap player like a refurb Sansa clip and play on your fuze while listening to your clip. (That's what I do)  

[redblade8]

Rockboy already allows you to listen to music on some players where it's possible. Since you don't mention which player you have, I don't have a guess as to why it's not enabled on yours, but there's probably a reason it's not possible.

Wait...this is already possible on some targets? Hmm...I need to see if my Sansa e280 can do this
.mid/.midi files being played doesn't take up much cpu so if music + rockboy on my sansa is not possible that should?

[gbl08ma]

Rockbox doesn't even support MIDI playback properly... it's one of the "codecs" (I don't think we can call that unfinished implementation a codec) that consumes more CPU and performs really poorly, at least to my honest knowledge.

[saratoga]

The main issue is probably IRAM (fast, internal RAM).  Both rockboy and codecs use IRAM to speed things up, but obviously only one at a time can be stored in it.  For players with no IRAM, this obviously doesn't matter.

[torne]

MIDI is actually pretty expensive to play, you have to manipulate samples and mix them in realtime...