Real time programmable, time variant synthesizer

A time variant tone generating device;

• comprising:
• virtual memory means for storing unique waveform data, pitch deviation data, amplitude envelope data, and waveform address boundary data;
• first processing means for transferring said pitch deviation data and said waveform address boundary data from said virtual memory means to a second processing means, for transferring said unique waveform data from said virtual memory means to a first memory means accessible by said first processing means and a thrid processing means, and for transferring amplitude envelope data to said thrid processig means;
• said second processing means including means for determining waveform data points in said first memory means to be accessed by said third processing means based on said waveform address boundary data and said pitch deviation data;
• said third processing means including means for accessing said waveform data points in said first memory means, for scaling said waveform data points based on said amplitude envelope data, and for summing scaled waveform data points;
• and
• a digital to analog converter for converting said summed waveform data points to a time variant output signal.