[RESOLVED] How to obtain buffer data from live audio?

I'm working with audio and I've a question about how can I obtain the wave audio information from the buffer.
As you know, in the *.wav file the audio information starts (usually) from the byte #45. Before byte #45 there are other kind of informations about the file as the number of channels, bits per sample, etc...

I want to obtain from the live audio the same information (like in the #45 byte and following ones of the *.wav file), but I don't know how to obtain those bytes from the live audio. So I ask you.

I'm using this structure to obtain live audio from the wave input device (I've just only one in my system, so its ID will be 0).

Note: I'll use 8 bits, Mono because is the easiest case.

I use the apis

• waveInGetNumDevs
• waveInGetDevCaps
• waveInOpen
• waveInStart
• waveInPrepareHeader
• waveInAddBuffer
• waveInUnprepareHeader
• waveInReset
• waveInClose

I think it's inside the sub Visualize and I've to read the InData matrix, but I'm not sure.

Attachment 128509

Are you doing real time audio

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Originally Posted by jmsrickland

Are you doing real time audio

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Well, I call it 'real time audio' but I'm refering to manipulate audio without saving it in a file. I mean to get the input from the michrophone and work directly with it. I don't know if that is called live audio.

I think I have an app that you use a mic - let me see if I can find it

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Originally Posted by jmsrickland

I think I have an app that you use a mic - let me see if I can find it

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Ok, tell me the result when you know it.

It turns out I don't have what I thought I had. I have an app that uses the mic but it is just records the incoming voice into an array but it does not do anything with it until you stop recording then it shows the waveform but what you are asking for is to show the waveform as the voice is coming in (live)

The vocoder, which change voice in realtime, allow to do "robotic", "synth" voice.
The spectrum visualizer, which allow to view spectum of input sound and draw circular spectrogram (turn per octave).

I have no idea how to use your spectrum visualizer. It also freezes up.

Also do you have a .zip version of vocoder

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Originally Posted by jmsrickland

It turns out I don't have what I thought I had. I have an app that uses the mic but it is just records the incoming voice into an array but it does not do anything with it until you stop recording then it shows the waveform but what you are asking for is to show the waveform as the voice is coming in (live)

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I've found a code in planet source code where I can see waveform of live audio and get the information, in byte form, of the audio.
http://www.planet-source-code.com/vb...=8314&lngWId=1

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Originally Posted by The trick

The vocoder, which change voice in realtime, allow to do "robotic", "synth" voice.
The spectrum visualizer, which allow to view spectum of input sound and draw circular spectrogram (turn per octave).

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Thank you very much. You always show very interesting projects.

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I have no idea how to use your spectrum visualizer. It also freezes up

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If you have slowly computer then you should compile code, and run exe.

Vocoder contained a useful class - clsTrickSound which has event that being called when either data in the buffers is needed (if you will using calss as playback) or data in the buffer done (if you will using class as recording).

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Originally Posted by The trick

If you have slowly computer then you should compile code, and run exe.

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I was using your TrickSpectrum.exe already compiled from zip

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I was using your TrickSpectrum.exe already compiled from zip

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Try to run code in IDE.

I can't because the file I downloaded .RAR and I can only unzip .ZIP files

Here are the ZIP-archive.

I have TrickSpectrum.zip. What I need is TrickVocoder.zip which I have as a .rar and cannot open it