Immersive audio is a three-dimensional (3D) sound field created by combining lateral and overhead speakers. A variety of industry standard and custom codecs are available for implementing immersive audio. This FAQ reviews the operation of the MPEG-H Audio (universal immersive audio coding) codec and the still-under-development MPEG-I Immersive Audio (compressed representation for virtual and augmented […]
Audio
How does artificial intelligence relate to immersive audio?
Tools like neural networks (NNs), machine learning (ML), and artificial intelligence (AI) are being applied to hard problems related to immersive audio. This FAQ will examine how NNs and ML are being used to up-mix audio tracks into their original constituent parts, how NNs are being used to produce personalized head-related transfer functions (HRTFs) and […]
What is immersive audio and how does it work?
Immersive audio extends conventional surround sound technology into the third dimension. It adds height and more to the audio experience. This FAQ presents some of the basic concepts of immersive audio, looks at how ambisonics relates to immersive audio, and closes by looking at a new recommended immersive audio system design practice. Immersive sound transforms […]
PC-specific audio device combines smart amplifier and low-power codec
Cirrus Logic announced today a premium audio solution built specifically for PCs that enables a louder, more immersive audio experience, whether listening to voice calls and music from the small internal speakers on ultrathin laptops or from headphones. Cirrus Logic’s PC-optimized audio solution includes the Cirrus Logic CS35L56 smart amplifier packed with processing power to […]
IPX5-, IPX7-, and IPX8-rated speakers added to line of waterproof speakers
CUI Devices’ Audio Group announced the introduction of new IPX5, IPX7, and IPX8-rated speakers to its existing line of IP67-rated waterproof speakers. Ideal for protection against moisture and liquid ingress in harsh environments, the new CMS waterproof speaker models feature sound pressure levels from 85 to 108 dB and packages from 15 mm up to 57 mm with […]
Potentiometer models feature resistance ratings from 1 to 2000 kΩ
CUI Devices’ Motion and Control Group announced the addition of a new line of potentiometers. Available in shaft or shaftless options, these rotary potentiometers feature resistance ratings from 1 to 2000 kΩ and panel mount or through-hole mounting styles. With a rotational life of 10,000 cycles, CUI Devices’ PT and PTN family of potentiometers are ideal for […]
MEMS microphone trio address ear and wearables market
Knowles Corporation introduces its latest series of SiSonic MEMS microphones: Titan (Digital), Falcon (Differential Analog), and Robin (Single Ended Analog). The new trio of microphones provides advanced performance capabilities for space-constrained Ear and wearable applications like True Wireless Stereo (TWS) earbuds, smart watches, Augmented Reality (AR) glasses, and Virtual Reality (VR) headsets. Each of the […]
How does a precision rectifier work?
A precision rectifier, sometimes called a super diode, is an op amp circuit designed to behave like an ideal diode and is used in high-precision signal processing applications. It’s not a synchronous rectifier. The op-amp-based precision rectifier should not be confused with power MOSFET-based synchronous rectification. Because there is no diode voltage drop between the […]
Notch filters boast built-in ESD protection function
TDK Corporation announces the release of its newly developed AVRF041A150MT242 and AVRF061D2R4ST532 notch filters with ESD protection function. Volume production of these devices will begin in March 2022. The new notch filters are compliant with the IEC61000-4-2 Level 4 immunity standard. They are well suited to ensuring EMC requirements are met in the audio circuits […]
N-channel JFET switch replaces discontinued NXP/philips BF510 devices
Linear Integrated Systems, Inc. announced it has released a direct, pin-for-pin replacement for the Philips/NXP BF510. Per an NXP discontinuation notice published in June 2020, this part is no longer manufactured or supplied by NXP. The new Linear Systems’ LSBF510 is an N-Channel Single JFET for applications up the VHF range. The part’s features are: […]
