WPG Launches Amazon Smart IoT Voice Recognition Solution Based on MediaTek Products

WPG Launches Amazon Smart IoT Voice Recognition Solution Based on MediaTek Products

On September 8, 2022, WPG Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary Pinjia has launched an Amazon smart IoT voice recognition solution based on MediaTek's Filogic 130A (MT7933) chip.

Figure 1 - Display board of MediaTek's Amazon Smart IoT voice recognition solution

Language is an important way for people to transmit and obtain information. With the development of voice recognition technology, this interactive method has also been applied to people and machines. It can be said that voice recognition technology is one of the key breakthroughs in realizing artificial intelligence. In the post-epidemic era, contactless devices to combat the spread of the epidemic have been widely developed, and voice recognition technology, as a precise, contactless technology, has also attracted much attention. In this context, WPG launched the Amazon Smart IoT voice recognition solution based on MediaTek Filogic 130A (MT7933), which combines advanced Wi-Fi and Bluetooth functions with the latest voice processing and power management technologies to provide high-quality choices for smart homes and home entertainment systems.

Figure 2-Application scenario of MediaTek's Amazon smart IoT voice recognition solution based on MediaTek products

MediaTek Filogic 130A (MT7933) integrates an independent audio digital signal processor HiFi4 DSP, which has the functions of acoustic echo cancellation AEC (Acoustic Echo Cancelling) and far-field processing (Far-Field Process) for enhanced voice, and can fully meet the voice-controlled IoT application Alexa Built-in devices.

And Filogic 130A is designed to support various standardized areas, including security, quality of service (QoS) and international regulations. It can be used in various communication frameworks and cloud services through the low-cost, easy-to-use IoT development platform MediaTek LinkIt™ real-time operating system (RTOS) with network security hardware encryption engine and Wi-Fi WPA3 security standard. In addition, Filogic 130A also supports Alexa Voice Service (AVS) voice cloud service, has Amazon AVS IoT voice function, and can use AVS API to easily build commercial-grade Alexa Built-in voice wake-up devices.

Figure 3 - Block diagram of MediaTek's Amazon Smart IoT voice recognition solution

Based on MediaTek Filogic 130A (MT7933), GLP's Amazon Smart IoT voice recognition solution can help users quickly, easily and securely build differentiated connected products at a low cost. With Alexa, it can allow products to have "intelligent voice assistant" functions, further enriching the product experience.

Core technology advantages:

 MediaTek’s new wireless networking system-on-chip, Filogic 130A (MT7933), integrates an independent audio digital signal processor HiFi4 DSP, which is an audio/voice processor capable of excellent processing for far-field voice. It has 3 ADCs/2DACs and dedicated SRAM, and can provide ultra-low power, always-on microphone functions. It has voice activity detection (VAD) and wake word support functions, which can easily add voice assistants and other services to products.

Program Specifications:

Application processor:

 ARM® Cortex-M33 MCU with floating-point computing and operating clock speed of 300MHz;

Network security hardware encryption engine includes AES, DES/3DES, SHA, ECC, and TRNG.

Audio Digital Signal Processor (DSP):

 Cadence® Tensilica® HiFi4 processor, operating at 600MHz;

 Audio Codec has 2 sets of ADC and 1 set of DAC;

 256KB embedded SRAM memory;

Voice Activity Detection (VAD) and Wake Word.

 Wi-Fi technical specifications:

Dual -band IEEE 802.11 1T1R a/b/g/n/ax 5GHz and 2.4GHz;

 2.4G / 5GHz frequency band, 20MHz bandwidth MCS0 ~ MCS8.

Bluetooth technical specifications:

Compliant with Bluetooth v5.0, with a transmission rate of 2Mbps, and supports long-range and LE Advertising Extensions 5GHz and 2.4GHz;

 2.4GHz/ 5GHz frequency band, 20MHz bandwidth MCS0 ~ MCS8.