NXP Immersiv3D Enables DSP-Free Dolby Atmos & DTS:X Audio Systems

NXP Immersiv3d audio reference design

High-fidelity audio systems such as soundbars, smart speakers, and AV receivers have traditionally relied on DSPs (Digital Signal Processors) to deliver low-latency audio processing, and enable audio and video synchronization. DSPs add to the cost of the overall design however, and with Immersiv3D technology, NXP has leveraged Arm Cortex-A53 and M4 cores in their NXP i.MX 8M Mini processor to completely remove the need for DSP in audio systems, shaving the BoM cost by up to 20%  according to an article on EETimes. Immersiv3D also enables immersive audio support with Dolby Atmos and DTS:X, advanced audio pre/post processing, advanced features like voice control for the smart home. Immersiv3D audio solution was designed to help OEMs to bring to market affordable consumer audio devices with Dolby Atmos and DTS:X, and beside the audio processing software, NXP is also offering an Immersiv3D audio reference design to help them delelop sound bars based on the solution. The press release further explains: The NXP …

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This Amplifier Board Features Beken BK3266 Bluetooth 5.0 Audio SoC

Bluetooth 5 audio board

I’ve been writing about a few Bluetooth 5.0 solutions this year, but in most case those were based on Nordic Semi nRF52 chips which do support BT 5.0 Low Energy, but not Bluetooth classic which means they are suitable for HID devices, but not for all applications such as potentially some Bluetooth audio application. I’ve just come across a $10.59 audio amplifier board on IC station that is supposed to support Bluetooth 5.0 via Beken BK3266 Bluetooth audio chip. Specifications and features listed for the board: Bluetooth 5.0 Connectivity Up to 6 paired devices Bluetooth protocols – HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2, AVDTPV1.2 Range up to 10 meters Transmission Power – Class2, 4dbm Sensitivity – -81dBm < 0.1% BER Frequency Range – 2.402GHz – 2.480GHz Audio MP3/WMA/WAV music format Speaker Impedance – 4 to 8 Ohm Output Power –  2x15W at 16V/4A, 2x10W at 12V/4A Audio signal to noise ratio >75dB Configuration via UART interface Misc – On/off button Supply Voltage …

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Up2Stream WiFi Audio Receiver Module Targets DIY Wireless Speakers

WiFi Speaker DIY Kit

If you own a set of very good speakers, and are interested in making them smarter, Arylic Up2Stream WiFi audio receiver module may be a solution to look into. The module allows to make your own DIY wireless speakers by adding WiFi connectivity, and features such as multiroom, AirPlay, DLNA streaming, Spotify, and Internet radio streaming. Up2Stream (WA31) hardware specifications: SoC – MediaTek MT7688AN MIPS processor @ up to 580 MHz System Memory – 64MB DDR2 Storage – 16MB flash Connectivity – 2.4GHz 802.11 b/g/n 1T1R WiFi up to 150 Mbps with 5 dBi I-PEX antenna Audio – 24-bit / 192 KHz decoding, 20 Hz – 20KHz frequency range, 4-pin speaker connector with 2.0mm pitch USB – 1x USB 2.0 port port Power Supply – 5VDC / 1A via 2-pin header (2.0mm pitch) Power Consumption – 160 to 320 mA Dimensions – 55.21 x 41.37mm The module ships with a 2-pin power cable, a 4-pin audio cable, and adhesive antenna, …

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Rakoit KM200 Karaoke Audio Mixer Supports 4K Videos

4K Karaoke Audio Mixer

While there are plenty of karaoke systems on Aliexpress, it’s pretty hard to find one that supports 4K videos, and Rakoit KM200 karaoke audio mixer is one of the rare that do. You’d just need to add your own 4K TV box / media player / computer, 4K UHD television, one or two microphones, and you’re ready to go. Rakoit KM200 specifications: Audio & Video In/Out HDMI output and HDMI input with 4K2K video support RCA jack for composite and stereo audio output and input 2x MIC Line-in Controls – 2x MIC volume adjust button, main volume adjust, echo volume adjust, earphone slot Power Supply – 12V DC Beside audio mixing, the device works as an amplifier, and supports 1080p to 4K upscaling. The karaoke mixer ships with an HDMI cable, an RCA cable, and a power adapter. Rakoit KM200 now sells for $99 on Acrylic.com, but you’ll also find it on Aliexpress for the normal $119 price tag. Support …

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Giveaway Week – ESP32-LyRaTD-MSC Audio Misc HDK

Espressif-ESP32-LyraTD-MSC-Kit

ESP32-LyraTD-MSC is a smart audio hard development kit based on ESP32 WiSoC that I plan to send  to one of my readers as part of Giveaway week. I had the chance to test ESP32-LyraTD-MSC with Baidu DuerOS voice assistant back in February which requires you to speak Mandarin, but now the board has become more useful outside of China with the release of Espressif ESP-ADF audio development framework and support for Amazon Alexa and Google Assistant. To enter the draw simply leave a comment below. Other rules are as follows: Only one entry per contest. I will filter out entries with the same IP and/or email address. Contests are open for 48 hours starting at 10am (Bangkok time) every day. Comments will be closed after 48 hours. If comments are open, the contest is still going on. Winners will be selected with random.org, and announced in the comments section of each giveaway. I’ll contact the winner by email, and I’ll …

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$16 ESP32-A1S ESP32 Audio Development Kit Comes with 2 Microphones, Audio Jacks & Headers

Espressif ESP32 WiSoC can be integrated into various applications, and earlier this year Espressif Systems released ESP32 LyraTD MSC Audio Mic HDK (Hardware Development Kit) which I could test with Baidu DuerOS using Mandarin. Since then the company released the ESP-ADF Audio Development Framework that beside Baidu DuerOS, now supports Google Assistant and Amazon Alexa, so you don’t need to speak or learn Chinese to use the kit! 🙂 Another ESP32 audio board was the similarly named ESP32-LyraT, and now we have at least more more option with Seeed Studio selling ESP32-A1S WiFi + Bluetooth ESP32 audio development kit for $16.90 on their store. ESP32-A1S ESP32 audio development kit specifications: Wireless Module A.I. Thinker ESP32-A1S module based on ESP32 dual core Tensilica CPU clocked at up to 240MHz with 520 KB SRAM, and 8MB on-module PSRAM 802.11 b/g/n WiFi and Bluetooth 4.2 LE Storage – Micro SD card slot up to 64GB Audio 3.5mm headphone jack for stereo audio output …

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$50 Kendryte KD233 Board Features K210 Dual Core RISC-V SoC

Kendryte KD223 RISC-V Board

RISC-V is talked about a lot, and we’re started to see a few development boards coming to market, or at least being announced with some based on SiFive processors such as HiFive Unleashed or Arduino Cinque, as well as other like GAPUINO GAP8 for low power A.I. applications. The Arduino board is not for sale yet, and HiFive Unleashed and GAPUINO GAP8 are fairly expensive at $999 and $229. Kendryte KD233 board is another RISC-V development board, based on  Kendryte K210 dual core 64-bit RISC-V processor designed for machine vision and “machine hearing”. The board goes for $49.99 on AnalogLamb. Kendryte KD233 board specifications: SoC – Kendryte K210 dual core 64-bit RISC-V processor, KPU  Convolutional Neural Network (CNN) hardware accelerator, APU audio hardware accelerator, 6MiB of on-chip general-purpose SRAM memory and 2MiB of on-chip AI SRAM memory, AXI ROM to load user program from SPI flash Storage – 128 Mbit SPI NOR flash, micro SD card slot Display – TFT …

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NXP Unveils i.MX RT600 Series Arm Cortex-M33 + Audio DSP Crossover Processor

NXP IMX RT600

A little over a year ago, NXP introduces their first crossover processor that blurs the line between real-time capabilities of microcontrollers and higher performance of application processors with NXP i.MX RT1050 processor equipped with a Cortex-M7 core clocked at up to 700 MHz. The company has now announced another model with lower power consumption. NXP i.MX RT600 series comes with a Cortex M33 core clocked at up to 300MHz, a Cadence Tensillica HiFi 4 audio DSP, and up to 4.5MB shared SRAM. Main features of NXP i.MX RT685 crossover processor: CPU Core – Arm  Cortex-M33 up to 300 MHz DSP – Tensilica Hi-Fi 4 up to 600 MHz Memory Up to 4.5 MB on-chip RAM 128KB DSP TCM, 128 KB DSP Cache Storage 96KB ROM on-chip 2x SDIO with 1x supporting eMMC5.0 w/ HS400 1x Octal/Quad SPI up to 100MB/s Peripherals 2x DMA Engines with 35 channels each 1x USB high speed host/device with PHY 1x SPI  up to 50 …

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