User Manuals: XMOS XVF3800 Voice Processor

Manuals and User Guides for XMOS XVF3800 Voice Processor. We have 2 XMOS XVF3800 Voice Processor manuals available for free PDF download: User Manual

XMOS XVF3800 User Manual

XMOS XVF3800 User Manual (94 pages)

Voice processor

Brand: XMOS | Category: Computer Hardware | Size: 7 MB

Table of Contents

Table of Contents
2
1 Overview

5
2 Setting up the Hardware

6
3 Using the Host Application

17
4 Tuning the Application

29
- System Preparation
  29
  - Prerequisites
    29
  - Initial Parameter Setting
    31
  - Initial Tests
    31
    
    Input Path
    31
    
    Control Path
    33
    
    Output Path
    33
    
    Speaker Operation
    33
    
    Microphone Operation
    34
- Tuning the XVF3800 Parameters
  34
  - Reference Gain
    34
  - Microphone Gain
    35
  - Silence Level
    35
  - System Delay
    36
  - AEC Operation
    38
  - AGC Configuration
    40
  - Emphasis
    41
  - Mgscale
    42
  - Fmin_Speindex
    42
  - Tuning the Non-Linear Model
    44
    
    Non-Linear Echo
    44
    
    Tuning Setup for Non Linear Model
    45
  - Echo Suppression
    49
    
    Pp_Dtsensitive
    50
    
    PP_GAMMA_E and PP_GAMMA_ENL
    51
    
    Pp_Gamma_Etail
    51
  - Noise Suppression
    52
  - Attns
    52
    
    Attns_Nominal
    53
    
    Attns_Slope
    53
  - Path Change Detection
    54
  - Output Equalization
    54
- Changing Default Parameter Values
  56
5 Building the Application Firmware

59
- Introduction
  59
- Prerequisites
  59
  - Python3
    59
  - XMOS Tools
    59
  - Build Tools
    60
- XVF3800 Release Package
  60
  - Standard Configurations
    61
  - Image Names
    61
- Build Process
  62
  - Set up the Environment
    62
  - Configure the Build System
    62
  - Build an Executable
    63
- Installing the Executable Image
  63
  - Install Using Xrun
    63
  - Install Using Xflash
    63
- Using SPI Boot
  64
  - Creating a SPI Boot File
    64
  - Using a SPI Boot File
    64
    
    Safe SPI Booting
    64
    
    Fast SPI Booting
    65
6 Some Acoustic Design Guidelines

67
- Microphones
  67
- Loudspeaker(S)
  69
- Enclosure and Mounting
  70
7 DFU Operations

71
8 Automatic Speech Recognition

77
9 HID Interface

78
10 APPENDIX - Control Commands

79
- AEC Tuning and Control Commands
  79
- Device Metadata Commands
  83
- Audio Manager Commands
  84
- GPIO Commands
  87
11 APPENDIX - Tuning the Loudspeaker

88
12 APPENDIX - Alternative Tuning Parameters

90
- Personal Space Speakerphone Using a Logitech Z50 Loudspeaker
  90
- Shared Space Speakerphone at 4.5 M Using a Genelec 8020 Loudspeaker
  91
13 APPENDIX - List of Applications

92
- UA Device Applications
  92
- INT Device Applications
  92

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XMOS XVF3800 User Manual

XMOS XVF3800 User Manual (67 pages)

Brand: XMOS | Category: Computer Hardware | Size: 8 MB

Table of Contents

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