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Intelligent Audio Processing Solution


Speech Interaction Introduction



●  The speech interaction can be divided into five parts: signal pick-up, speech enhancement, speech recognition, semantic understanding and information feedback.


●  The main advantage of our product is the speech enhancement technology. It also has great performance in signal pick-up.




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AI5708 Introduction

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◆ Featured in the framework of SoM + Carrier Board and offers flexible specification of SOMs

◆ Integrates TI AM57xx SOC with ARM+DSP processor
◆ ARM core processes business logic+DSP core processes audio&video data
◆ DSP development SDK, which let you implement audio processing algorithm easily
◆ Multi-lane McASP + CSI/USB camera input
 AI57xx is versatile for various AI applications such as high-end intelligent audio processing, intelligent robot, audio conference system, phonetic teaching system and other areas.



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Picture of Array Microphone


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Circular Array Microphone




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Linear Array Microphone




Picture of SOM57xx


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SOM5708

1*ARM Cortex-A15 +1*C66x DSP




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SOM5728

2*ARM Cortex-A15 +2*C66x DSP





Advantage of Array Microphone



Index

Type

Circular Array

Linear Array

Mic Quantity

13 (6+6+1)

7 (6+1)

 8 (4+4)

8, 4

Angle

360°

/

Sound-capture Distance

0~10m

0~20m

Beam Width(3dB bandwidth)

70°

70°

Sound Localization Resolution

≤ 20°

≤ 30°

Sound Separation Quantity

12 

2

Audio Quality

360° High fidelity

High fidelity

 Speech Recognition Rate(5m, Noise)

≥95%

≥95%

Echo Cancellation

≥ 40 dB

≥ 40 dB

Noise Reduction

SNR improves more than  10 dB

SNR improves more than 10 dB




Advantage of AI57xx


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Sound Localization: By getting accurate sound location, many applications can be implemented.




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Directional Sound-Capture: Can effectively shield the noise and improve the speech purity.




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Beam Forming: Can enhance the directivity of sound.





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Sound Separation: Separate the sound according to different speaker. 




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Echo Cancellation: When playing and picking up sound at the same time, the speaker can be shielded and only the user's voice can be received






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Dereverberation: Reduce the proportion of reverberation in speech to get a purer sound.






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Noise Reduction: Reduce noise by intelligent algorithm






Application Fields of AI57xx




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SOM57xx Introduction



SOM5708-B


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  ● Integrates 1x Cortex-A15@1GHz, 1x C66x DSP@750MHz, 2x Cortex-M4, 2x PRU

  ● Connector:BTB Connector

  ● Up to 4x VIN

  ● Up to 2x CAN

  ● Up to 10x UART

  ● Up to 2x LCD

  ● Up to 4x SPI

  ● Up to 3x MMC

  ● Up to 8x McSAP

  ● Up to 5x I2C

  ● Up to 2x Gigabit Ethernet

  ● 1x SATA-2

  ● 1x USB 3.0

  ● 1x USB 2.0

  ● 1x HDMI

  ● 1x MIPI CSI-2 camera input and 2x data LAN

  ● 1x PCIe 3.0 (1* 2-lane or 2*1-lane)

  ● Supports Linux 4.9.28 OS,DSP RTOS and RT-Linux system

  ● Operating temperature : -40℃~85℃ (Industrial Grade)



SOM572x


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◆   Integrates 2x Cortex-A15@1.5GHz, 2x C66x DSP@750MHz, 2x Cortex-M4, 2x PRU

◆   Connector:BTB Connector

◆   Up to 10x video input

◆   Up to 2x CAN

◆   Up to 10x UART

◆   Up to 3x LCD

◆   Up to 4x SPI

◆   Up to 3x MMC

◆   Up to 8x McSAP

◆   Up to 5x I2C

◆   Up to 2x Gigabit Ethernet

◆   1x SATA-2

◆   1x USB 3.0

◆   1x USB 2.0

◆   1x HDMI

◆   1x PCIe 3.0 (1* 2-lane or 2*1-lane)

◆   Supports Linux 4.9.28 OS,DSP RTOS and RT-Linux system

◆   Operating temperature : -40℃~85℃ (Industrial Grade)





TI AM57xx Introduction



AM5708 Cortex®-A15 based Processors


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Benefits
●   Single-core version of AM57x
●   3,500 ARM Cortex-A15 DMIPS

Sample Applications
●   Human Machine Interface (HMI)
●   Medical Imaging
●   Test & Measurement

Key Features
●   1.0GHz* ARM Cortex-A15, Dual 213MHz ARM Cortex-M4; 750MHz** C66x DSP
●   1080p Video Decode/Encode
●   3D and 2D Graphics Acceleration
●   Multiple Video Input Ports
●   Display Subsystem
●   Quad core Programmable Real-time Unit (PRU)/Industrial Communications Subsystem (2x dual core subsys.)
●   USB3, PCIe

Power Estimates
●   Typical Power: 1.5-3W (nominal voltage)
●   Suspended Mode: <800mW  

Package:  17x17mm, 0.65mm VCA
Availability: 
●   Samples: now
●   Production: now


*Nominal voltage max freq. for Cortex-A15 is 1 GHz
**Nominal voltage max freq. for C66x DSP is 600 MHz





AM5728 Cortex®-A15 based Processors


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Benefits
●   Sitara’s highest performance ARM device w/DSP accelerators
●   10,500 ARM Cortex-A15 DMIPS
●   Upgraded graphics performance with HD Video support

Sample Applications
●   Human Machine Interface (HMI)
●   Industrial PC
●   Digital Signage
●   High-end Navigation and Consumer

Key Features
●   Dual 1.5GHz* Cortex-A15s, 213MHz M4s, and 750MHz** C66x DSPs
●   1080p Video Decode/Encode
●   3D (x2) and 2D acceleration
●   Multiple Video Input Ports 
●   Display Subsystem
●   Quad core Programmable Real-time Unit (PRU)/Industrial Communications Subsystem (2x dual core subsys.)
●   USB3, PCIe, SATA

Power Estimates
●   Typical Power: 2.5-4W (nominal voltage)
●   Idle Power: ~650mW  

Package:  23x23, 760 pin, 0.8mm
Availability: 
●   EVM:  now
●   Production: now





AM57x core components



   Cores   

   Serial Peripherals   

   Network Connectivity   

  ●   Single/Dual ARM Cortex-A15 up to 1.5 GHz (1 GHz nominal)
       ●   32KB L1P / 32KB L1D


  ●   Dual ARM Cortex-M4 up to 213 MHz
       ●   32KB L1, 64KB L2 RAM


  ●   Single/Dual C66x DSPs up to 750MHz (600 MHz nominal)
       ●   32KB L1P / 32KB L1D, 288 L2/RAM


  ●   Quad core PRU-ICSS up to 200 MHz (2x dual core subsystems)

  ●   10 UARTs
       ●   1 w/ IrDA 
  ●   4 Multi-Channel Serial Peripheral   ●   Interface (MCSPI)
  ●   5 I2C

  ●   2-port GbE Switch (RMII/MII/RGMII)
  ●   2 x DCAN Controllers (optional selection of 
     CAN-FD for one DCAN instance
  ●   PCI Express
       ●   Gen 1 compliant 
       ●   1x2 or 2x1 lane support




   Memory/Memory Interface   

   Audio   

   System Peripherals   

  ●   On-Chip L3 RAM
  ●   Support for NOR and NAND (w/ 16 bit ECC)
  ●   Single/Dual 32-bit EMIFs supporting  DDR3/3L up to 1333 data rate  
  ●   Quad SPI

  ●   8 Multi-Channel Audio Serial Ports (MCASP)
       ●   2 x 16 channels
       ●   6 x 4 channels

  ●   16 x Timers
  ●   2 Watch-dog Timer (WDT)
  ●   32 kHz Sync timer
  ●   13 x Mailboxes
  ●   SpinLock
  ●   3 x PWM, eCAP, eQEP
  ●   RTC
  ●   GPIO
  ●   Keyboard




   Multimedia/Vision   

   Media Connectivity   


  ●   EVE – Embedded Vision/Vector Engine
  ●   ICP – Imaging Signal Processor
  ●   CSI 2.0

  ●   USB
       ●   USB3.0 w/ integrated PHY
       ●   USB2.0 w/ integrated PHY
  ●   SATA
       ●   HBA port w/ SATA-2 support up to 3 Gbps
  ●   4 x HS-MMC/SD/SDIO 
       ●   Configurations vary






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