Espressif Systems’ audio development framework, ESP-ADF, works on top of ESP-IDF, the commonly-used base SDK for the company’s ESP32 microcontroller portfolio. ESP-ADF provides flexibility to application developers who want to use it as a complete solution supporting a range of use cases from provisioning to OTA, or use it as a platform for building fully customised applications.
The framework includes a rich set of features, such as codecs, source and sink streams, pipelining support, different services and controls, and a wake-word engine. It supports popular audio formats (such as MP3, AAC, WAV, OGG, AMR, TS, OPUS and SPEEX) as well as the creation of sound effects with tools such as: EQ, Mixer and Resample. ESP-ADF also plays music from sources such as HTTP, HLS (HTTP Live), SD card and Bluetooth A2DP/HFP, and it integrates media services such as DLNA, Airplay, WeChat and Internet radio.
These features, combined with support for voice recognition and integration with online services like Alexa, DuerOS, Turing, IFLYTEK, TmallGenie, RooBo, etc, makes the solution suitable for deployment in applications such as smart speakers, voice-activated walkie-talkies, broadcasters, and other audio-enabled solutions such as connected storytelling toys and point-reading pens.
ESP-ADF is supported on Espressif’s LyraT and LyraTD-MSC development boards. The documentation and design of these boards are open-source, allowing users to easily create their own applications based on the framework. Additionally, Espressif’s ESP32-WROVER module, which has an integrated SPIRAM, can act as a powerful, feature-rich, yet cost-effective platform for audio application hardware.
The 8-bit survival syndrome – Part 2
DSP, Micros & Memory
Just like the 4-bit pre-microcontroller, the 8-bit MCU has been finding ways to stick around. Their features and speeds have been improving, offering competitive reasons to work with them.
Read more...Enhanced code protection for USB µC portfolio Future Electronics
DSP, Micros & Memory
To help easily incorporate USB power and communication functionality into embedded systems, Microchip Technology has launched the AVR DU family of microcontrollers.
Read more...General-purpose MCU with RISC-V architecture EBV Electrolink
DSP, Micros & Memory
Renesas has released a general-purpose MCU to enhance its existing RISC-V portfolio, and this is its first MCU using a RISC-V core developed internally at the company.
Read more...8-bit MCU with I3C support Avnet Silica
DSP, Micros & Memory
The PIC18-Q20 8-bit microcontrollers from Microchip easily interface with devices operating in multiple voltage domains, and the built-in I3C interface supports higher-speed and lower-power data transfers than I2C.
Read more...An evolutionary step in customisable logic Altron Arrow
DSP, Micros & Memory
Microchip Technology is offering a tailored hardware solution with the launch of its PIC16F13145 family of microcontrollers, which are outfitted with a new Configurable Logic Block module.
Read more...ESP32-P4 high-performance MCU iCorp Technologies
AI & ML
Powered by a dual-core RISC-V CPU running up to 400 MHz, ESP32-P4 also supports single-precision FPU and AI extensions, thus providing all the necessary computational resources.
Read more...MCU for battery-powered applications Altron Arrow
DSP, Micros & Memory
Included in ST’s family of devices is the STM32U031, an ultra-low-power MCU featuring an ARM Cortex-M0+ 32-bit core running at up to 56 MHz.
Read more...Serial SRAM up to 4 MB EBV Electrolink
DSP, Micros & Memory
The chips are designed to provide a lower-cost alternative to traditional parallel SRAM products, and include optional battery backup switchover circuitry in the SRAM memory to retain data on power loss.
Read more...SiP supports LTE/NB-IoT and GNSS RF Design
DSP, Micros & Memory
The nRF9151 from Nordic Semiconductor is an integrated System-in-Package that supports LTE-M/NB-IoT, DECT NR+ and GNSS services.
Read more...Qi2 dsPIC33-based reference design
DSP, Micros & Memory
Powered by a single dsPIC33 Digital Signal Controller, the Qi2 reference design offers efficient control for optimised performance.
printer friendly version