AudioResearchBlog

Last week, at the recent ‘audio club’ of my university, I was showing how to work with the CLAM framework as a tool to prototype realtime audio signal processing applications in a simple and fast way.

We started with an example network to show some about the NetworkEditor capabilities: karaoke.clamnetwork

After that, we continue with a simple ‘diodo distortion’ plugin:

We specified and generated the source code base in this way:

We wrote this code:

bool Do()
        {
            bool result = Do( mEntrada.GetAudio(), mSalida.GetAudio() );
 
            mEntrada.Consume();
            mSalida.Produce();
 
            return result;
        }
   
        bool Do(const Audio& in, Audio& out)
        {
            int size = in.GetSize();
 
            const DataArray& inb = in.GetBuffer();
            DataArray& outb = out.GetBuffer();
 
            for (int i=0;i<size ;i++)
            {
                if ( fabs(inb[i])>0.8 )
                    outb[i] = inb[i]&lt;0.? -0.8:0.8;
                else
                    outb[i] = inb[i];
            }
            return true;
        }
</size>

And built this net to try it:

The source code of the plugin ready to be compiled is here: pluginDistorsiónDiodo_ClubAudioFiuba.tar.gz

As extra, I leave here pluginDistorsiónDiodoConControlDeClipping_ClubAudioFiuba.tar.gz the same diode distortion, but with a clipping control to set the threshold when playing.

They liked these kind of prototyping features a lot, so probably we’re going to keep using it at the club.

audio , CLAM , ClubAudioFiuba , effects , english , plugins , programming , signal processing

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