Troubleshooting Proteus Simulation Error with Multistage Amplifier and Audio File

Ebad Naeem

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Hey everyone.
I was working on a project in which I have to make a multistage amplifier. The multistage amplifier should give gain over multiple stages, include a noise filtering stage, and a buffer and impedance matching stage to drive the load. So, after making the amplifier on proteus I gave it a wav audio file to get it's output on the speaker.

Proteus gave me an error and did not run the simulation. I opened a new project file on proteus and input the audio file without the amplifier. It did not work. Then randomly it started working but then it stopped working again. Does anyone have any idea why I am getting this error?

I have attached the screenshot of the error I am getting. This is the error code Internal Exception: access violation in module 'WINMMBASE.DLL'[0000369F]. I am using Proteus 8 Professional. A cracked version of it.

 

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