TIDEP-0088

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

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 pre-processing software
  • Hardware/software with modularized components to build an audio pre-processing solution for clear voice triggering and recognition

Design files & products

Design files

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

TIDUCR7A.PDF (4730 K)

Reference design overview and verified performance test data

TIDRQT3.PDF (334 K)

Detailed schematic diagram for design layout and components

TIDRLE5A.PDF (1523 K)

Detailed schematic diagram for design layout and components

TIDRQT4.PDF (89 K)

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

TIDRLE6A.PDF (119 K)

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

TIDRQT5.PDF (196 K)

Detailed overview of design layout for component placement

TIDRLE7A.ZIP (151 K)

Detailed overview of design layout for component placement

TIDRQT7.ZIP (18998 K)

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

TIDRLE8A.ZIP (12389 K)

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

TIDCDE5.ZIP (6085 K)

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

TIDRQT6.ZIP (10228 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Arm-based processors

66AK2G12High performance multicore DSP+Arm - 1x Arm A15 cores, 1x C66x DSP core

Data sheet document-pdfAcrobat PDF open-in-new HTML
Audio ADCs

PCM1864103dB 4-Channel Software-Controlled Audio ADC With Universal Front End

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Hardware

Development kit

EVMK2G — 66AK2Gx (K2G) Evaluation Module

The K2G Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx - 600MHz processor, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive applications.  Similar to (...)

Out of stock on TI.com

Technical documentation

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Type Title 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 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 09, 2017

Related design resources

Hardware development

DAUGHTER CARD
AUDK2G 66AK2Gx (K2G) audio daughter card

Software development

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

Reference designs

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

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