All items tagged with acoustic echo cancellation (44)

Alexa? Techniques to Pull Clear Speech from Noise – Part II

August 25, 2021 by Ofer Shahen-Tov

Alexa? Techniques to Pull Clear Speech from Noise – Part II

Great voice recognition can only start with great voice pickup. If cost is no object, of course you can build a great solution. Just use high-end voice activity detection, many-microphone beamforming and echo cancellation and you’ll have a premium product for high-end markets. But can you also satisfy mid-range markets with attractive pricing? This article discusses techniques to offer solutions for both markets.

El axer? All eggs er? Alexa! Conditioning Voice Input for Recognition

July 29, 2021 by Ofer Shahen-Tov

El axer? All eggs er? Alexa! Conditioning Voice Input for Recognition

Great voice recognition can only start with great voice pickup. Just “OK” pickup will greatly compromise recognition accuracy and increase user frustration. The high speech quality you need demands a high-quality audio front-end. And if cost is no object, of course you can build a great solution. But can you also satisfy mid-range markets with attractive pricing?

Spotify Uses Audio Weaver in Audio Front-End Development for Car Thing

May 20, 2021 by Joao Martins

Spotify Uses Audio Weaver in Audio Front-End Development for Car Thing

Spotify partnered with DSP Concepts to build and deploy the audio front-end (AFE) software for its limited release of Car Thing, a dedicated smart player for the car. Spotify did the development for Car Thing using TalkTo, DSP Concepts’ proprietary AFE that acts as a ‘microphone cleaner’ by combining advanced signal processing techniques to create clean audio signals so Car Thing can detect voice commands regardless of road noise and other in-cabin sound.

New Firmware for XMOS XVF3510 Voice Processor Supports USB Accessory Devices and Integrated Solutions Development

July 28, 2020 by Cristina Costa

New Firmware for XMOS XVF3510 Voice Processor Supports USB Accessory Devices and Integrated Solutions Development

XMOS announced new firmware variants, supporting USB and built-in applications, of its XVF3510 voice processor, further opening the door to voice-enabled smart product development. The two variants — XVF3510-UA for USB accessory devices, and XVF3510-INT for built-in solutions — incorporate purpose-designed algorithms that ensure a clear voice stream is captured from across the room, even in noisy environments and with audio streaming from the device itself.

Servo-Control in Mainstream Audio: From Motional Feedback to the Bend-Sensor

July 16, 2020 by Mike Klasco

Servo-Control in Mainstream Audio: From Motional Feedback to the Bend-Sensor

Imagine a new class of speaker diaphragm position sensors that enable audio engineers to reduce distortion and extend bass response from studio monitors, soundbars, smart speakers, and even smartphone microspeakers. With the precision of laser displacement instrumentation, this sensor is located between a stationary component of the speaker and an appropriate moving part to provide an error correction reference signal back to the amplifier. Well, that sensor has already been developed. This article was originally published in The Audio Voice weekly email newsletter.

R&D Stories: Acoustic Echo Canceller Calibration in Real Time

June 17, 2020 by Erica Yorga

R&D Stories: Acoustic Echo Canceller Calibration in Real Time

Is it an understatement to say that echo cancellation has been a kind of “holy grail” ever since the first conference call? Nureva’s patented Microphone Mist technology rethinks that quest in innovative ways. In this article, Erica Yorga shares how the development process of a real-time calibration method for acoustic echo cancellation awarded surprising results. This article was originally published in AudioXpress, June 2020. This article was originally published in AudioXpress, June 2020.

Dolby Introduces New Dolby Voice Huddle Conferencing Solution with Automatic Acoustic Optimization

May 21, 2020 by audioXpress Staff

Dolby Introduces New Dolby Voice Huddle Conferencing Solution with Automatic Acoustic Optimization

Dolby Laboratories announced a new Dolby Voice Huddle, a conferencing solution designed specifically to address the challenges of video meetings in smaller – and often custom – spaces. This compact solution features Dolby intelligent acoustic technology which calibrates based on the TV and room space to deliver optimum audio quality without the need for additional speakers and soundbars. Dolby Voice Huddle joins the previously released Dolby Voice Room and Dolby Voice Room Pro solutions to complete the Rooms with Dolby Voice video conferencing product portfolio.

Automotive Audio and Cutting-Edge Audio Technologies in audioXpress June 2020

May 8, 2020 by audioXpress Staff

Automotive Audio and Cutting-Edge Audio Technologies in audioXpress June 2020

audioXpress June 2020 is now available, and for the first time in the publication's history, we have explored the fascinating world of automotive audio technology, and the relevant trends and opportunities. Elia Shenberger (CEVA) writes about Our Future Car and Birgit Bartel-Kurz (Fraunhofer IIS) discusses how to offer surround sound in cars. And Oliver Masciarotte reviews the Sennheiser AMBEO Immersive Soundbar, while Erica Yorga (Nureva) details a Real-Time Calibration Method for Acoustic Echo Cancellation. And there's so much more in this edition. Download or view your issue online now.

Challenges to Building Voice-Enabled Products

April 2, 2020 by Chin Beckmann

Challenges to Building Voice-Enabled Products

Voice-enabled devices are quickly becoming commonplace in nearly every region and for every consumer demographic. Whether making cloud-connected or offline products, OEMs need to understand what’s driving this demand for voice. Unlike some new product features, adding a voice interface requires product architects to make a number of highly-impactful, interconnected design decisions. Development teams don’t have it easy either, as integrating microphones in a product introduces another layer of complexity.

XMOS Introduces New Voice Processor and Far-Field Voice Development Kit for Amazon AVS

July 24, 2019 by audioXpress Staff

XMOS Introduces New Voice Processor and Far-Field Voice Development Kit for Amazon AVS

UK-based XMOS launched its next generation voice processor — the XVF3510. The 2-mic voice processor boasts all the performance of a 4-mic solution, and will be available at a market-leading cost of $0.99 per unit, paving the way for mass market implementation. The new processor is now available as part of a new development kit, optimized for far-field applications in TVs and set-top boxes, which allows manufacturers to embed Alexa or other voice engines into their products.

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