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What is an audio filter?
An audio filter is a type of filter used for processing sound signals. It is designed to pass through some frequency regions unattenuated while significantly attenuating others.
Applications include graphic equalisers, synthesisers and CD players.
total search4426 articles
2002-11-18 Zetex amplifier handles 192kHz digital audio signals
Zetex's Acoustar ZXCW8100 two-channel digital audio amplifier controller handles digital audio signals sampled at up to 192kHz via 32-bit data processing.
2005-09-21 Zetex Acoustar technology used in Theta's digital audio amplifier
Zetex and Theta Digital announced that Zetex' Acoustar digital amplifier processing technology is being used to provide unprecedented sound fidelity in Theta's new digital audio amplifierthe Virtu PowerDAC
2009-01-09 XMOS offers royalty-free source code for audio apps
Multicore processor vendor XMOS Semiconductor Ltd has developed source code for a range of digital audio applications including Ethernet AVB and USB 2.0.
2002-07-30 Xicor rolls dual audio potentiometer
A digitally programmable dual 32-tap potentiometer IC from Xicor Inc. enables full digital control of audio volume via front-panel pushbuttons or remote control, eliminating the use of mechanical potentiometersl.
2012-10-23 Wolfson unveils HD audio MEMS microphones
The WM7121 and the WM7132 MEMS microphones feature feature matching phase responses and matching sensitivity, making them suitable for stereo recording.
2013-04-16 Wolfson to supply more audio parts for Samsung's Galaxy
Samsung Electronics has chosen Wolfson Microelectronics as primary audio component supplier for its Galaxy smartphones and tablets.
2003-09-25 Wolfson software driver supports audio codec devices
Designers of mobile communication devices incorporating Wolfson Microelectronics' audio components now have access to a selection of software drivers to support five new processor families.
2003-08-07 Wolfson powers digital audio apps with new release
Wolfson Microelectronics plc has introduced two digital audio interface products for the consumer audio and professional markets.
2004-10-18 Wolfson loads audio codec with functionality
Wolfson's latest device is a mono audio codec designed for digital still cameras and digital-voice recording apps, such as dictaphones.
2002-08-20 Wolfson audio DAC offers 112dB SNR
The WM8718 24-bit differential stereo DAC that offers a 112dB SNR and -100dB THD.
2003-04-29 Wolfson audio DAC features AC'97 interface
The WM9709 stereo audio DAC from Wolfson Microelectronics features an Intel-specified AC-Link architecture.
2003-06-17 Wolfson audio codec for mobile devices
Wolfson Microelectronics has introduced the WM9711L, a low-power, single-chip design with the company's audio sub-system codec capability.
2003-01-24 Wolfson audio codec adds touchscreen interface support
The WM9712L audio codec features a streaming data touchscreen interface into a 7-by-7mm QFN package.
2002-01-18 Wolfson audio chips occupy less footprint vs. SSOPs
Widely used in portable audio designs, the WM8711 stereo DAC and WM8731 audio codec are now offered in a QFNP that offers one-third the footprint of existing SSOPs.
2008-03-31 Wolfson audio chips not in Apple's next iPods?
Wolfson Microelectronics is believed to have lost out in its bid to supply Apple's next-generation iPods with audio chips.
2008-03-12 WLED driver integrates audio amp, LDOs
Maxim Integrated Products has introduced the MAX8821, said to be the only WLED driver to combine a highly efficient, negative charge pump with a fully differential, bridged audio amplifier and two low-noise, LDO current regulators.
2005-01-07 Wireless transmitter/amplifier works without audio degradation
Amphony's 5.8GHz digital wireless audio transmitter/amplifiers are capable of transmitting audio to loudspeakers wirelessly and without any audio degradation.
2010-07-14 Wireless digital audio SoCs suit subwoofer, headphones
The AWA8800 series from AlfaPlus Semiconductor Inc. is a SoC solution for wireless digital audio streaming applications.
2015-03-16 Wireless brings new meaning to connected home audio
Annual shipments of connected audio products such as wireless speakers and connected AV receivers are expected to grow from 1.5 million units in 2010 to nearly 66 million units in 2018, IHS predicted.
2009-12-22 Wireless audio module suits home, portable apps
Kleer Inc. has released its flagship KLR3012 wireless audio module, which contains new technology to support both portable audio devices and home audio equipment.
2004-05-17 Wireless audio design made simple
Audio performance becomes an important aspect in modern mobile system design and great challenge to most R&D engineers.
2014-12-15 WiFi SDK claims to lower audio device BOM
The fourth-gen JukeBlox 4 software development kit from Microchip allows the development of high quality products such as standalone or multi-room wireless speakers, AV receivers and sound bars.
2007-03-21 Wi-Fi radio ref platform enables $79 audio systems
In addition to its ability to play audio via Wi-Fi, DAB and FM, another feature of Frontier Silicon's Jupiter 4 radio platform is its capability to support the new DAB+ standard.
2007-06-19 White LED driver integrates Class AB audio amplifier
Maxim Integrated Products introduces the MAX8678, the industry's only white LED (WLED) driver to combine a highly efficient negative charge pump with a fully differential, bridged audio amplifier.
2004-11-03 Waves Audio, Tripath develop LCD TV audio reference design
Waves Audio and Tripatch Technology developed an audio reference design that promises to help OEMs improve the audio quality of their LCD TVs.
2006-10-12 Waves Audio opens new China tech support office
Waves Audio, a developer of audio signal processing software, has opened a new semiconductor sales and technical support office in Shenzhen, China.
2004-03-03 Wavecom adopts Micronas audio ICs in mobile phones
Wavecom has selected two Micronas audio ICs for its Compact 605 and 610 multimedia mobile phone platforms.
2008-08-14 VoIP codec delivers rich audio, voice
Nuvoton Technology has introduced the WAU8812 cost-effective mono audio codec designed specifically for VoIP phones, hands-free kits and general-purpose speakerphones.
2008-12-03 Vista-compliant audio chips are space-, power-savers
Maxim Integrated Products introduces the MAX9791/MAX9792, the industry's first Windows Vista-compliant, audio subsystem ICs for notebook computers.
2004-03-18 Vimicro selects Teradyne J750 for audio processor test
China-based chip solution provider Vimicro Corp. will use Teradyne Inc.'s J750 MSO system to test a new audio processor device designed to provide high-quality music ring tones and game sounds for mobile phones.
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