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Topic: Audio processing

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	Audio signal processing - Wikipedia, the free encyclopedia
		Audio signal processing, sometimes referred to as audio processing, is the processing of a representation of auditory signals, or sound.
		The focus in audio signal processing is most typically an analysis of which parts of the signal are audible.
		Processing methods and application areas include storage, level compression, data compression, transmission, enhancement (e.g., equalization, filtering, noise cancellation, echo or reverb removal or addition, etc.), source separation, sound effects and computer music.
	en.wikipedia.org /wiki/Audio_signal_processing (245 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		Audio signal processing, sometimes referred shortly to as audio processing or just audio, is the processing of some representation of auditory signals, that is sound.
		The focus in audio signal processing is most typically in an analysis of which parts ofa signal is audible.
		Processing methods and application areas include such as storage, compression, transmission, enhancement (e.g., equalization, filtering, noise cancellation, echo removal or addition etc.), source separation, sound effects and computer music.
	www.informationgenius.com /encyclopedia/a/au/audio_signal_processing.html (170 words)

	Digital signal processing - Open Encyclopedia (Site not responding. Last check: 2007-11-03)
		DSP and analog signal processing are subsets of signal processing.
		The target of the signal processing is often another analog output signal which requires a digital to analog converter for translation.
		The main applications of DSP are audio signal processing, audio compression, digital image processing, video compression, speech processing, speech recognition and digital communications.
	open-encyclopedia.com /Digital_signal_processing (1359 words)

	Audio Processing
		An audio gate was added to stop the processor from turning up the volume when the audio level was very quiet.
		The audio processors of today have become much more complex and help radio stations achieve audio quality that was not possible only a few years ago.
		Audio filters can be much more precise, allowing us to squeeze every ounce of energy possible while protecting the integrity of the radio carrier.
	stolenequipment.beradio.com /ar/radio_audio_processing_2 (2105 words)

	Audio Processing
		When working on your microphone and overall processing, we are very sensitive to audience and talent, minimizing impact of the tuning process.
		We have special software and hardware for ripping and mastering audio BEFORE it goes into automation systems, to insure proper and consistent levels, and to maximize some of the more esoteric technical issues that are often overlooked in today's fast-paced and understaffed production environment.
		We can provide station-wide or network-wide smart processing systems that work together to insure maximum audio quality in every studio and for every feed, so that levels and quality are consistent throughout your facility.
	www.cmbe.com /Resources/Processing.htm (711 words)

	Online Audio Processing
		Most perceptual codecs were designed without audio processing and deliberate spectrum manipulation in mind, so in some ways, the use of audio processing is not the best approach.
		Multiband audio processing is a must for higher degree of quality control.
		In such a case, the phase angles of audio within the highpass/lowpass skirts will rotate and either be out of phase with or in phase with frequencies in the passband of neighboring filters.
	beradio.com /departments/radio_online_audio_processing (1243 words)

	Omnia - Audio Processing for Broadcasting, Audio Mastering and the Internet
		DAB and HD Radio are generally 20kHz audio bandwidth (as compared to FM's 15kHz) which requires a processor that can sample at higher frequencies, 48 kHz or higher.
		Audio processing is needed to soften the perceived quality difference between the two modes.
		Telos and Omnia have the largest team of Digital Signal Processing experts in the broadcasting industry, with years of experience in the science of optimizing audio for use with bit-reduced codecs.
	www.omniaaudio.com /dab.htm (513 words)

	Mcp Audio Processing Unit - (Site not responding. Last check: 2007-11-03)
		Audio Codec Interface and the MCP Audio Processing Unit.
		The integrated audio processing unit is also top notch, as is the...
		Delivering exciting audio functions to the n3 Series is the NV7-133R's on-board NVIDIA MCP-D, an Audio Processing Unit that features 6-channel audio and a total...
	processing.greatestofthewww.com /index.php?k=mcp-audio-processing-unit (1041 words)

	Audio processing with a microprocessor, "adding a Virtual Tape Loop"
		The success of such a system in audio processing depends upon its ability to operate at ultrasonic speeds; that is, the rate at which the audio signal is digitized, processed, and output must (or should) be as far above the upper limit of the audio spectrum as possible.
		The effect on the sound of an electric guitar is quite remarkable, particularly as the frequency multiplication factor is a function of the amplitude of the input signal and changeat the input decays.
		If we store digitized audio in an array in programmable memory, and read it out to the digital to analog converter at a later time, we have a time delay effect which can be used for phase shift and reverb.
	web.inter.nl.net /hcc/davies/apmicro.html (4031 words)

	Audio Processing
		More audio energy is needed for low and high audio frequencies to produce the same sensation of loudness as for midrange tones.
		It is a perceptual audio coding scheme, exploiting the masking property of the human ear, and trying to maintain the original sound quality as far as possible.
		The audio sockets are in the center of the desktop.
	www.cs.uccs.edu /~cs525/audio/audio.html (1307 words)

	Apple - Logic Pro - Distributed Audio (Site not responding. Last check: 2007-11-03)
		The conventional approach to increasing the processing power of native systems requires you to invest in costly, dedicated processors built onto expansion cards or into external hardware.
		Using distributed audio processing in your project studio allows all files to remain on the local storage media of the Master system — the hard drive of your PowerBook, for example.
		A distributed audio network requires at least two Apple computers running Mac OS X version 10.3 or later, with one acting as a master system (1GHz G4 or faster recommended) and additional computers serving as “nodes” (G5 recommended).
	www.apple.com /logic/distributedaudio.html (880 words)

	Audio signal processing (Site not responding. Last check: 2007-11-03)
		Audio signal processing, sometimes referred to as audio processing or just audio, is the processing of a representation of auditory signals, or sound.
		Processing methods and application areas include storage, compression, transmission, enhancement (e.g., equalization, filtering, noise cancellation, echo removal or addition etc.), source separation, sound effects and computer music.
		These are all forms of audio time scaling.
	www.sciencedaily.com /encyclopedia/audio_signal_processing (249 words)

	Free digital audio processing downloads (Site not responding. Last check: 2007-11-03)
		A digital audio processing class library for.NET that lets developers create their own sound filters or use the ones implemented by the author, such as Gain, Delay, and Reverb, as well as the ability to read and write.WAV files.
		Easy Audio Editor is a visual multifunctional audio files editor which allow you to perform various operations with audio data such as visual editing, creating, recording, converting and playing audio files.
		Audio MP3 Editor is a digital audio editor for recording and audio editing with amazing audio effects, audio filters and converters, including MP3, WMA, WAV, Ogg Vorbis, VOX, Audio CD Tracks(CDA).
	www.handyarchive.com /free/digital-audio-processing (611 words)

	Audio Processing Pipelines LG #73
		The growing popularity of various multimedia formats, in the form of images and audio data, has spurred on the development of tools to deal with such files.
		The focus will be on audio stream processing as these formats work particularly well with the Unix filter pipeline paradigm.
		Samples may be issued by different applications at any time without having to wait, although not every audio application knows how to do this for each of the various desktops.
	linuxgazette.net /issue73/chung.html (1954 words)

	Television Production: Television Audio - Audio Control Devices
		If subsequent audio processing circuits (in editing equipment, for example) have AGC circuits, the problem gets progressively worse as each piece of equipment further increases background noise.
		Since they respond to loud noises by quickly pulling down audio levels, this means that words can be lost when an AGC circuit reacts to a loud sound, such as someone bumping the microphone.
		Program audio that has been compressed seems louder to the ear than non-compressed audio—a feature that hasn't escaped the attention of the producers of TV commercials.
	www.cybercollege.com /tvp045.htm (1023 words)

	NU9N AM Transmitter Hi Fi Audio Modulation Processing
		Also keep in mind that a transmitter that cannot reproduce audio flatness would also be considered a form of distortion, since the resulting output audio frequency amplitude is a distortion of the original audio source.
		The audio processing that will precede the transmitter may even aggravate the transmitters distortion specs, so again, great care should be taken when adjusting and aligning your transmitter and pre- transmitter processing.
		This audio output is suitable for either headphones or the line-level input of your stereo amplifier or mixer.
	www.icycolors.com /nu9n/am.html (4010 words)

	Spatializer Audio Laboratories, Inc. - Welcome! (Site not responding. Last check: 2007-11-03)
		We are in the midst of a digital audio revolution, and Spatializer Audio Laboratories, with a wide array of digital domain solutions is strategically positioned at the very heart of this revolution.
		Advanced digital signal processors (DSPs) and SOC (system-on-a-chip) solutions are driving this revolution by providing tremendous processing power which drive embedded audio and video system applications well beyond anything that could have been envisioned several years ago.
		Today, more than 95 consumer electronics and computer manufacturers and suppliers have heard the difference in our advanced positional audio signal processing, speaker and mobile enhancements and noise reduction technology that is incorporated into a wide array of personal, home, office and mobile audio and video products.
	www.spatializer.com (452 words)

	Waves Ltd. Digital Audio Processing
		By capturing these sounds, we hope to help the architects who renovate these venues, aid the researchers who study them, and provide insight to anyone who would benefit from listening to the echoes of history.
		Built on the same technologies used in Waves professional audio software, it increases peak volume, improves clarity and stereo imaging, and extends bass and high frequency response.
		Smaller than most bookshelf speakers, the Home MiniWoofer is an innovative audio product that provides an ideal subwoofer for a TV or mini/shelf system.
	www.waves.com (479 words)

	Audio File Processing
		The conversion to MP3 is lossy (will cause some audio data to be dismissed) but the resulting file will be much smaller (usually by 1:10 factor) while still maintaining very good sound quality.
		It offers both constant and variable bit rate encoding, batch processing, selection of existing or creation of new output folders, WAV and MP3 files preview, creating or removing ID3 tags, filtering (both low-pass and high-pass filters are available) and selection of output mode (mono, stereo or joint stereo).
		To burn audio data into a CD-R or CD-RW in CD-Audio format you need first to get the WAVE files that will correspond to each track of your CD (There is however software that can burn Audio-CDs directly from MP3 files, doing the conversion to WAVE on the fly).
	futalgo.planetaclix.pt /midisyn/aufilpro.htm (1610 words)

	DSP audio processing made easy: News from Analog Devices (Site not responding. Last check: 2007-11-03)
		This flexibility creates a richer audio experience for end users, particularly in space-constrained products like flat panel televisions or multimedia PCs, where a restricted form factor prevents the use of large speakers and subwoofers.
		In a set-top box or home theatre system, audio delays can be added to ensure the audio signal is synchronised to compensate for video frame delays.
		The SigmaStudio's ease-of-use gives analogue audio engineers as well as experienced digital designers an advantage by allowing them to reduce development time and cost, accelerate time to market, and still deliver premium sound quality for high-volume applications where tight market windows and a competitive price point are the rule.
	www.electronicstalk.com /news/anc/anc285.html (684 words)

	Lectrosonics-Audio Processing Systems
		A Lectrosonics audio processing system provides fully automatic, voice activated operation and full integration with remote control and video switching systems from other manufacturers.
		The DM Digital Audio Matrix Mixers are a milestone in DSP technology in their basic architecture, processing speed and efficiency.
		It is included with the DM Series Digital Audio Matrix Mixers, the Venue Receiver and is also available for download.
	www.lectrosonics.com /lecnet/lecnet.htm (313 words)

	PDF files for "The Scientist and Engineer's Guide to Digital Signal Processing"
		Audio processing covers many diverse fields, all involved in presenting sound to human listeners.
		Three areas are prominent: (1) high fidelity music reproduction, such as in audio compact discs, (2) voice telecommunications, another name for telephone networks, and (3) synthetic speech, where computers generate and recognize human voice patterns.
		Digital Signal Processing has produced revolutionary changes in these and other areas of audio processing.
	www.dspguide.com /ch22.htm (103 words)

	Sonic Flow: dataflow-inspired audio signal processing
		Sonic Flow is a set of C++ libraries and C wrappers for dataflow-inspired audio signal processing.
		Sonic Flow uses the libsndfile or audiofile library for audio file input and output.
		This signal processing software project was originally carried out at Tampere University of Technology for the course 80961 Signal Processing Project in fall 1998.
	sonicflow.sourceforge.net (335 words)

	z-systems audio engineering - home (Site not responding. Last check: 2007-11-03)
		These products are designed to simplify digital audio integration in facilities with many different digital sources and destinations which may require different interfaces and/or sample rates such as DAT machines, A/D and D/A converters, digital audio workstations, CD players and recorders, digital consoles, and outboard processors, to name but a few.
		Our range of signal processing equipment includes both two-channel and six-channel gear for equalization and dynamics processing.
		Our processors are based on proprietary, cutting-edge digital signal processing algorithms and feature 24-bit resolution at up to 96 kHz sampling rates.
	www.z-sys.com (173 words)

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