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TIDEP-0088

Audio Pre-Processing System Reference Design for Voice-Based Applications

Design files

TIDEP-0088

Design files

Overview

This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter.  The rapid increase in applications that are used in noise-prone environments for voice activated digital assitants creates demand for systems that extract clear voice from noisy environments.  The reference design uses a microphone array and a sophisticated signal processing to extract clear audio from noisy environments.

Features
  • Single digital signal processor (DSP) SoC for audio pre-processing
  • Circular microphone board (CMB) with 360 degree coverage of audio source
  • Audio preprocessing software
  • Hardware and software with modularized components to build an audio preprocessing solution for clear voice triggering and recognition
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDEP-0088
TIDUCR7A.PDF (4731 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDEP-0088
TIDRLE7A.ZIP (151 KB)

Detailed overview of design layout for component placement

download Assembly drawing — TIDEP-0088
TIDRQT5.PDF (196 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDEP-0088
TIDRLE6A.PDF (119 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Bill of materials (BOM) — TIDEP-0088
TIDRQT4.PDF (89 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDEP-0088
TIDRLE8A.ZIP (12389 KB)

Files used for 3D models or 2D drawings of IC components

download CAD/CAE symbol — TIDEP-0088
TIDRQT7.ZIP (18998 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDEP-0088
TIDCDE5.ZIP (6086 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDEP-0088
TIDRQT6.ZIP (10228 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDEP-0088
TIDRLE5A.PDF (1523 KB)

Detailed schematic diagram for design layout and components

download Schematic — TIDEP-0088
TIDRQT3.PDF (335 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Audio & radar DSP SoCs

66AK2G12 — High performance multicore DSP+Arm - 1x Arm A15 cores, 1x C66x DSP core

Data sheet: PDF | HTML
Audio ADCs

PCM1864 — 103dB 4-Channel Software-Controlled Audio ADC With Universal Front End

Data sheet: PDF | HTML

Start development

Hardware development

Daughter card

AUDK2G — 66AK2Gx (K2G) audio daughter card

This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter.  The rapid increase in applications that are used in noise-prone environments for voice activated digital assitants creates demand (...)
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDEP-0088 — Audio Pre-Processing System Reference Design for Voice-Based Applications
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AUDK2G — 66AK2Gx (K2G) audio daughter card

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Hardware development
Reference design
TIDEP-0088 — Audio Pre-Processing System Reference Design for Voice-Based Applications
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Technical documentation

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Top documentation Type Title Format options Date
* Design guide Audio Pre-Proc Sys RD for Voice-Based Applications Using 66AK2Gx (Rev. A) Jun 12, 2018
Technical article A primer in voice interface technology PDF | HTML May 26, 2017
VID Demonstrating Voice Preprocessing May 18, 2017
White paper Voice as the user interface – a new era in speech processing white Paper May 9, 2017

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-01454 — PCM1864-Based Circular Microphone Board (CMB) Reference Design

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
PROCESSOR-SDK-K2G — Processor SDK for 66AK2Gx Processors - Linux and TI-RTOS Support

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