The integrated circuit used in this circuit from a 1987 documentation is no longer common today. This circuit can generate a multitude of different sounds and this circuit is an example of application.
We find this circuit in an old documentation, but it can be implemented with modern equivalent...
The circuit shown in the figure can be used to detect vibrations or to provide amplified acoustic...
The Texas Instruments INA826S Instrumentation Amplifier Evaluation Module is available from Mouser...