GuitarBox 1.0 is back!!

Hi there,

This section is dedicated to my beloved GuitarBox, the first app for the PSP on its kind.

GuitarBox is my first PSP App written in C++. GuitarBox 1.0. is a REAL TIME multieffects processor with several traditional guitar effects. I developed this application almost a year ago, since then I was kind of busy on my PhD Studies. However, I’d like to continue with the GuitarBox saga developing a 2.0. version that will include a guitar tuner and other guitarist’s must-have effects.

In you want to give a try you can visit the following inks: (Spanish) (English) (French)

Some Screenshots:

How to build the connection cable:

In a future post I’ll include some instructions, sound samples, and videos as well.



  1. William said,

    August 18, 2008 at 4:25 pm

    Està muy bièn collinga , seguì con el project.

  2. Madz said,

    August 20, 2008 at 11:27 pm

    What is that silver/white thing? I can only find a spanish tutorial on making the cord and they dont specify what the hell that is.

  3. rocamatics said,

    August 20, 2008 at 11:41 pm

    The silver/white “thing” is the earphone remote control accessory (e.g., generally it is included with a PSP bundle (so you normally should have it). This device has a special audio entry (3 connector plug) which is at same time input/output. Just go to any electronic shop and for sure you can find all the components. The setup displayed is the easiest way to have the cable (cord) without soldering.


  4. Madz said,

    August 21, 2008 at 12:16 am

    ah ok thanks! Ya i was pretty confused. I assumed it was maybe just a volume adapter. Theoretically that is optional correct?

  5. rocamatics said,

    August 21, 2008 at 12:28 am

    In order to plug your guitar (or any audio source) you need this accessory which is the only way to plug an audio signal (audio input, and additionally allows you to plug headphones -audio output- as well). Without the earphone remote control you can only plug headphones to your psp (audio output). So, the accessory is REQUIRED by GuitarBox; as I previously said, the accessory is generally included with the PSP and is also required for some PSP games.

  6. Madz said,

    August 21, 2008 at 12:42 am

    hmmmm alright. Ill have to dig up my PSP box. I dont remember it coming with it so i may have to buy that earphone package you have shown online.

  7. zero2x said,

    October 20, 2008 at 12:26 am

    Listo compadre, esperamos alegremente una versión nueva de este excelente programa =D.

    PD: Lo de “cabrón” en México es de cariño jaja.


  8. Jolo said,

    November 2, 2008 at 4:28 pm

    Hi, how do I install this? I can’t seem to make it work correctly. Thanks.

  9. gamoesp said,

    November 2, 2008 at 10:19 pm

    Hola!… ¿cómo va el proyecto? La idea es muy buena, y en breve conseguiré los materiales para ponerme con ello. Sólo quería saber si has avanzado o tienes pensado avanzar/actualizar el proyecto. Me parece una gran idea y si lo desarrollas bien puedes quedar una cosa muy muy guapa!

    Ánimo y suerte!

  10. La Chupracabra said,

    November 8, 2008 at 10:29 pm

    Dude, your blog has given me, a music student on a tight budget, a way to save a buttload of money using only my smarts and some cables. You need to continue innovating these useful tools!

  11. La Chupacabra said,

    November 23, 2008 at 3:17 am

    What fw’s/cfw’s is this capable with i spent about $25 (american) building the cable but the app wont start!

  12. p23 said,

    January 13, 2009 at 2:35 pm

    very usefull idea thx so much.
    ialso use it with my D&B-liveset
    a reverb and a filter would be a nice update.

    thx for guitar-box,

  13. p23 said,

    January 14, 2009 at 1:38 pm

    i have m33 3.71 now,
    do anxons know if guitar-box runs on it???


  14. p23 said,

    January 14, 2009 at 1:42 pm


    i have m33 3.71 now,
    do anyone know if guitar-box runs on it???
    and where do i have to put the files????

    thx thx thx paulo

  15. p23 said,

    February 16, 2009 at 2:17 pm

    it´s possible to run GUITAR-BOX under
    cfw 5.00 m33-6 +LEDA +TIMEMACHINE1.50xe-2
    press “R” and start the PSP go to CONFIGURATION and set the the kernal from
    5.xx to 1.50.
    now, start the psp in timemachines 1.50 mode (perss x and start the PSP)

    have fun
    thx thx thx to ROCAMANTICS

  16. p23 said,

    February 16, 2009 at 2:24 pm

    ask if u have some questions, perhaps i can help you.

    wenn ihr fragen habt, vielleicht kann ich euch weiterhelfen , habe selbst länge gebraucht, aber jetzt spielts…..

    seeá, bis dann, und seas ,…………..P-23

  17. p23 said,

    February 16, 2009 at 2:40 pm

    warum hast du guitarbox 1.52 nicht hier zum download angeboten?????
    magst du deine seite nicht mehr???? 🙂


    Ik spreek Nederlands niet, droevig!
    I don’t speak Dutch!!

  18. rocamatics said,

    February 17, 2009 at 9:01 pm

    Hi everyone, here Rocamatics.

    Thanks to everybody for the posts, sorry for this lag.. if everything goes fine with my studies I will have some extra time for GuitarBox 2.0 on March! Thanks to P23 for the indications for running GBOX with LEDA. Please be patient!, you won’t be disappointed. The main issue now, apart from time, is multithreading (needed by the guitar tuner) is a bit tricky and, most of all, undocumented on the PSP. The guitar tuner is a must on the new release, as well as the chorus (algorithm’s code already implemented in a C# probe). I’ll try the CPU’s acceleration features as well (e.g. less latency).

    By the way, another crazy idea to discuss: to hack the PSP remote controller in order to convert it into a real PEDALBOARD (e.g. control the patch banks, volume, expression pedal, switching effects, etc..). Here, in Belgium, the PSP remote part costs only 10euros, could be a cool thing… let’s see what happens :).

    Other idea, maybe later: have a separate version of GBOX (FX BOX?) to use it like a effects machine with real time parameter changes (e.g. KORG KAOSS PAD ).


  19. p23 said,

    February 21, 2009 at 1:35 am

    ahh,..all this sounds very nice to me, manly the Fx Box.


  20. p23 said,

    February 21, 2009 at 1:58 am

    it was german,…

  21. p23 said,

    February 21, 2009 at 9:48 am

    GuitarBox works under CFW 5.00 m33-6 +LEDA 0.2

  22. p23 said,

    February 21, 2009 at 9:59 am

    just run it in 1.50 kernal,…
    i use ultimate vsh menuv1.02 so i can change the kernal in the xmb form 5.xx to 1.50 .

    my problem was,..

    i didt format my memstick since 3.71m33-4,…

  23. Rune said,

    April 5, 2009 at 2:04 pm

    This seems like such a great app. Can’t wait to get the proper cables to try it out. Using it as a multifx unit seems like a great way to use it. Perhaps there could be support for some kind of pluggable effects, so other people can make effects to use in the app, kind of like VST plugins.


  24. Decius said,

    June 1, 2010 at 5:17 pm

    Hey Rocamatics’s. I love your software GBOX, being a Guitarist my self I am slightly disappointed that I am unable to run GBOX on my Own PSP slim.

    I was wondering if maybe you could release a version of it for the SLIM? Instead of the out-dated 1.50 Kernel.

    If you could do this I know of tons that would find this to good use! This is probably one of my most favorite pieces of software for the PSP! Keep up the good work!

  25. michael said,

    June 11, 2010 at 4:53 am

    wow im still tryn to figure out how to put the cables togethr how do i conect a mic instead of a guitar? anyway awsome app way to go Rocamatics!!

  26. July 13, 2010 at 1:42 pm

    Congratulations “my dear friendsito”, i´ve been reading about your research and i don´t understand several things, but it´s ok. Well, i just want to say hello.

  27. LostAngel said,

    July 18, 2010 at 3:06 am

    Great app, also works on gen firmware running via noobs eloader.
    Just be sure to turn off the plugins that may interfere with eloader first or it’ll hang.

    I’ll test with a psp 2002 next week when i can get a remote for it.

    Are you still interested in continuing the project, time permitting?

  28. chipot said,

    June 6, 2011 at 1:58 pm

    Hi rocamatics,

    The guitarbox is really great, especially for a guitarist like me.. But theres a new a application in iphone and its called amplitube.. It is really awsome if you could do a homebrew like this, although i dont have iphone coz, its too expensive,,hope you can did like this application that was an awsome rocks homebrew in psp

  29. chipot said,

    June 6, 2011 at 1:59 pm

    U rockz…

  30. chipot said,

    June 6, 2011 at 2:03 pm

    Maybe u should put an another fx like: flanger, chorus,fuzz,overdrive and especially the tuner.. Well i guess its too diffucult, but hope you could do that..

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: