2. Figures

Figure 1 System overview

Figure 2 Voice detection principle

Figure 3 Reference application schematic

Figure 4 VAD operation modes

Figure 5 VAD detection related parameters

Figure 6 SmartSnippets selecting SDK directory

Figure 7 Importing demo projects

Figure 8 SDK projects list

Figure 9 VAD demo project resources

Figure 10 External Tools

Figure 11 OQSPI Configuration example

Figure 12 Cyberon DSpotter Modeling Tool

Figure 13 Model directory

Figure 14 Spotter debug output

Figure 15 DSpotter flowchart

Figure 16 Project build configurations

Figure 17 Word detection flow chart

Figure 18 Serial port user experience

Figure 19 LCD user display

Figure 20 Power consumption VAD Mic enabled

Figure 21 Power consumption during Audio Sampling Word spotting

Figure 22 DSpotter processing time

Figure 23 UART Debug processing

3. Tables

Table 1 VAD Internal registers

Table 2 Serial Port Configuration Parameters

Table 3 DSpotter memory requirements

Table 4 Power consumption

Table 5 Processing time with DSpotter & Serial Debug

4. Terms and Definitions

SOC System on Chip

VAD Voice Activity Detection

VDV Voice Detected as Voice

NDV Noise Detected as Voice

DSMT DSpotter Modeling Tool

WT Whisper Trigger

DK Development Kit

PDC Power Domain Controller

FSM Finite-state machine

5. References

Todo

Add the relevant documents (when available)

1. DA1470x Datasheet

2. Cyberon Voice Recognition Lab Document.pdf

3. CyberonDSpotterV2.x_202112_s.pdf

4. Dolphin Integration manual WT-a-HD.01_specs_r1.9.pdf