I’m a total FMOD noob and been spending a few hours too much trying to solve a problem not even knowing if it’s possible.

Help is much appreciated.

Problem: I want to create a buffer (like 2-10sec long), then play this in a circular manner at the same time being able to affect and change the buffer (like pressing keys on keyboard to make sounds) within the values -1 to 1 to be able to do some custom DSP realtime effects.

So stream directly to soundcard from a real-time generated signal..

I want to handle this in memory only, and I’m getting stuck when trying to create the sound and point to my buffer. Could someone please provide a quick sample for this? Or a hint for what to search for in the manual :)

So far tried with something like this:
System_Create( &m_fmodSystem );
m_fmodSystem->init(100, FMOD_INIT_NORMAL, 0);

memset(&exinfo, 0, sizeof(exinfo));
exinfo.cbsize = sizeof(exinfo);
exinfo.length = 10 * 44100 * sizeof(float);//10sec
exinfo.numchannels = 1;
exinfo.defaultfrequency = 44100;

m_fmodSystem->createSound("dunnoWhatToWriteHere", FMOD_OPENMEMORY_POINT, &exinfo, &m_fmodSound);

m_fmodSystem->getChannel(FMOD_CHANNEL_FREE, &m_fmodChannel);

m_fmodSystem->playSound(FMOD_CHANNEL_REUSE, m_fmodSound, false, &m_fmodChannel);

//loop 20 times and affect the buffer here just before fmod should play it...possible ?


thanks in advance if anyone takes time to answer. I’ve tried to search the forums but maybe I use the wrong keywords. I’m not used to audio terms and what to use..

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Check the UserCreatedSound example, that maybe what you are looking for

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[quote="a1psx":3pi2g6in]Check the UserCreatedSound example, that maybe what you are looking for[/quote:3pi2g6in]

Aaah.. how could I miss that tutorial, after a quick check I believe this is exactly what I wanted.


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