Texas Instruments MSP50C614 manual Speech Development Cycle, Device Production Sequence

Speech Development Cycle

7.3 Speech Development Cycle

Figure 7±4. Speech Development Cycle

			Speech Specification
Speaker Selection		Recording Script		Software Design		Hardware Design
		Preparation
	Speech Recording			Software Writing		Prototype Construction
	Speech Analysis
	Speech Editing				Software Debugging
	Speech Evaluation

System Evaluation

A sample speech development cycle is shown in Figure 7±4. Some of the com- ponents, such as speech recording, speech analysis, speech editing, and speech evaluation, require different hardware and software. TI provides a speech development tool, called the SDS6000, which allows the user to per- form speech analysis using various algorithms, speech editing for certain algo- rithms, and to evaluate synthesis results through playback of encoded speech. Design of the software and hardware, development of software, and prototype construction are all customer-dependent aspects of the speech development cycle.

7.4 Device Production Sequence

For the speech development group at TI to accept a custom device program, the customer must submit a new product release form (NPRF). This form describes the custom features of the device (e.g., customer information, prototype and production qualities, symbolization, etc.). Sections 1 and 2A of the NPRF are completed by TI personnel. A copy of the NPRF can be found in section 7.6.

TI generates the prototype photomask, then processes, manufactures, and tests 25 prototype devices for shipment to the customer. Limited quantities in addition to the 25 prototypes may be purchased for use in customer evaluation.

7-8