Rack Systems

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Build the perfect sound system for your unique needs by selecting the exact rack to meet your specific needs. Then choose rack-mountable components from QSC, Denon, Stanton, Marantz, ETA, Rolls mixers, amplifiers, tape decks and wireless microphone receiver to complete your Supreme Sound Tower™. These sturdy racks are appropriate for either stationary or road use and hold all 19" wide rack equipment. Front to rear depth is 16" for the carpet racks, but may be deeper to accommodate larger audio components. Durable! Built to Last! Heavy-duty construction using 5/8" plywood with all steel rails.

Snap-lock, pressure-fit front and rear doors provide additional security and are easily removed for installation or use. Covered in black heavy-duty carpet-like material. Heavy-duty retractable steel handles. Other heights available on request.

Optional heavy-duty wheels are available to make it even easier to move the rack system from room to room or to secure it safely. Note: For proper ventilation, we recommend leaving the rear door cover off when in operation.

Racks are available with or without locking doors or wheels for added security and mobility! Please call to discuss other options.

Audio Producer

Download all segments needed from the MW crew, radio4all, Between the Lines, etc. All content should be converted to 44,100 hertz stereo before it is imported into the final audacity project for each half of the show. Also, files that are not WAV, MP3, or OGG may not be importable into audacity at all - most of these problem files will be WMA. Covert such files with CDEX to a temporary WAV file (F12, browse to source file [click on the 3 dots in the upper right of the window], select it, normalize checked if possible and delete original unchecked, click convert. When converted, rename the output file as appropriate and move it into this show's folder).

Play all content with winamp to ensure that it's in stereo and at 44.1 khz. Some audio that winamp won't play may still successfully import into audacity. Fix frequency first if needed by starting a new audacity project (file: new), import the audio file (project, import audio file...), set the project rate in the bottom left to 44100, and export as WAV to a descriptive new filename. If necessary, convert that file to stereo with CDEX, by converting the WAV to a stereo 128 kbps normalized MP3 file (F4, encoder: LAME..., "don't delete" unchecked, stereo, on the fly checked, 128 kbps, j-stereo, 44100 samplerate. Generic: clear tag-comment and encoded-by fields, normalized checked, click OK. Convert, convert WAV to compressed audio file, browse to source file, select it, normalize checked, delete original checked, click convert. When compressed, close CDEX, rename the output file as appropriate [it should be in the OUT folder on the desktop] and move it into this show's folder).

Converting to stereo can be done more quickly in Audacity. To make an entire project that is mono stereo, select all, copy, select project - new audio track, and paste into that new track. Click the triangle on the first track (see the left side of screen) and select "make stereo track." Export to WAV or MP3 as appropriate.

All content from audio CD's can also be extracted to stereo 128 kbps normalized MP3 files using CDEX as well (insert CD, select the track you want, F8...).

Audio Mixers

In professional audio, a mixing console, or audio mixer, also called a sound board or soundboard, is an electronic device for combining (also called "mixing"), routing, and changing the level, timbre and/or dynamics of audio signals. A mixer can mix analog or digital signals, depending on the type of mixer. The modified signals (voltages or digital samples) are summed to produce the combined output signals.
Mixing consoles are used in many applications, including recording studios, public address systems, sound reinforcement systems, broadcasting, television, and film post-production. An example of a simple application would be to enable the signals that originated from two separate microphones (each being used by vocalists singing a duet, perhaps) to be heard through one set of speakers simultaneously. When used for live performances, the signal produced by the mixer will usually be sent directly to an amplifier, unless that particular mixer is “powered” or it is being connected to powered speakers.

Audio Forensic

Forensic analysis and Expert Witness services for recorded evidence
# Audio and Video Tape Authentication
# Voiceprint Analysis and Voice Elimination
# Acoustical Compliance
# Audio and Video Tape Enhancement
# Patent and Technology Infringement
# Forensic Musicology and Copyright Infringement
# Audibility Analysis (voice, alarms, etc.)
# Acoustical Gunshot Analysis
# Acoustic Simulation for Accident Reconstruction

Music places certain demands on its tools when performing restoration and enhancement. The goal in music restoration is to remove as much noise as possible without introducing artifacts and to leave the remainder as "musical" as possible. With Audio Forensics, we are not constricted by these guidelines. The only goal, in most cases, is to audibly discern what is being said by certain individuals so that audio, previously obscured by noise can now be heard and understood. With those goals in mind, tools can be augmented to better service this different need. Though several important forensics audio applications can be performed with both our DC Millennium software and our DC SIX product, our DC LIVE/Forensics is designed to specifically deal with voice enhancement in situations where ambient noise is a major problem.


General Recording Techniques

Specific Forensics Tools In DC LIVE/Forensics

Choosing Your Software Tools

Screen Shot Of The Tools

An Educated Taste Test

Hear It For Yourself

Training, Training, Training

Anything Else I Need To Know?

Audio Equipment

Video conferencing services, telepresence systems, audio visual integration, ip network services, streaming video solutions, Web conferencing services, and audio conferencing services a world leader in providing managed solutions for today’s conferencing and collaboration technologies..

Recommended Hardware
The following video conferencing equipment recommendations are based on our experience with active customer installations. If you have a favorite vendor or spare camera that's Windows compatible, but is not on our recommended list, give it a try!
For PC & Laptop Users
1. Webcams & Cameras
2. Headsets with Boom Microphones
3. External Microphones
For Conference Rooms & Training Facilities
Standard Definition & HD Cameras
Audio Equipment
Standard Echo Canceller Microphones
Echo Cancellation Mixers
Video Conferencing Accessories & Specialty Equipment

Audio Engineering

Audio engineering is a part of audio science dealing with the recording and reproduction of sound through mechanical and electronic means. The field draws on many disciplines, including electrical engineering, acoustics, psychoacoustics, and music. Unlike acoustical engineering, audio engineering does not deal with noise control or acoustical design. An audio engineer is closer to the creative and technical aspects of audio rather than formal engineering. An audio engineer must be proficient with different types of recording media, such as analog tape, digital multitrack recorders and workstations, and computer knowledge. With the advent of the digital age, it is becoming more and more important for the audio engineer to be versed in the understanding of software and hardware integration from synchronization to analog to digital transfers.

Audio engineers come from backgrounds such as electrical engineering or the fine arts, and many colleges and accredited institutions around the world offer degrees in audio engineering, such as a BS in audio production. In the last 25 years, some contemporary music schools have initiated audio engineering programs, usually awarding a Bachelor of Music degree to graduates. Additionally, a number of audio engineers are autodidacts with no formal training.

Audio Conferencing Unit

Networks Audio Conferencing unit extends voice connectivity to conference rooms and offices with state-of-the-art clarity and reliability. It includes full-duplex technology and a keypad to access all of the conferencing features available from your Meridian Norstar phone system or BCM (Business Communications Manager).

Exceptional Voice Quality
With incredibly clear voice quality on both ends of the call, the Norstar Audio Conferencing Unit sounds just like a face-to-face meeting.

• 360-degree Voice Coverage. Three highly sensitive microphones can pick up a voice from any point in a 10' x 15' room. The unit offers the best performance when people are three to six feet from the microphones. But remember: side comments can be picked up from as far away as 25 feet!
• Digitally Tuned Speaker. The unit tunes out echoes and background noise and offers a crystal clear sound.
• Full Duplex Technology. Voices can be picked up and heard simultaneously -- even interruptions and overlapping dialogue. Conversations sound natural, with no clipped words and no time delays.

Technical Specifications

Audio Conferencing Unit

• Dimensions-6cm(H) x 35cm (W) x 33cm (D)
• Weight - 0.9Kg
• Audio bandwidth - 200 to 3500 Hz
• Loudspeaker volume - 89 dBSPL
• System power requirements-90 to 110VAC, 60 Hz
• Recommended room condition:
  • Reverberation time - <0.4>
  • Noise level-<48>
• Environmental specifications:
  • Operating temperature -5 to +40 (Celcius)
  • Operating humidity (non-condensing) 20%- 85%

Interface Module

• Dimensions - 5 cm (H) x 20 cm (W) x 8 cm (D)
• Weight - .34 kg
• Power - 20 VDC, 150 mA
• Cable length to console - 7.6m
• Cable length to telephone wall jack - 1.8m

Registration - UL, FCC, Industry Canada, CE
FCC Rules - Part 15, Class A
Canadian Department of Communications - ICES-003, Class A
EMC - Class A ITE
CE - 89/336/EEC & 73/23/EEC

Audio Conferencing Software

Holding an audio conference is a great way to conduct a simple meeting that enables a high level of productivity. At the same time it lets participants meet from the comfort of their own offices. Online audio conferencing uses the technology of voice over IP to allow you to hold a meeting over the Internet.

While complex audio-video conferencing installations may be expensive, there are audio-video conferencing software applications that can be downloaded from the Internet at no cost. This is particularly beneficial for smaller companies or other organizations that wish to take advantage of the benefits of audio-video conferencing.

Free audio-video conferencing software applications can be downloaded from Web sites that provide downloads in different categories such as software, music and video. The audio-video conferencing software applications are most likely to be found under the technical software category.

There are a few tips to keep in mind before downloading certain audio-conference software. You need to determine where the audio-video conferencing facility will be used. In most cases, free software is only applicable for small-time companies or organizations because of technical limitations.

Secondly, you may want to read posted reviews or ratings of the software. Download sites often include feedback forums for each featured software application. You may want to peruse comments from other users first before selecting an audio-video conferencing program to download. Aside from this, some download Web sites also feature a short description of the application software. This description usually provides a background on the preferred usage of the application and its limitations. Reading this description may help you determine if the application suits your needs.

It also helps to check the technical requirements of the featured software application. Free audio-video conferencing software usually requires an operating system of Windows 98 or higher. In addition, the user should check the estimated download time of the application. Free audio-video conferencing software applications have an average size of 330 KB. Depending on your connection speed, the download time may take between five minutes to an hour.

Shareware audio-video conferencing software applications can also be temporary. This means that the software can only be used without charge for a certain period of time. Hosting companies call this a trial period. Consider this option if you plan to buy a permanent and more advanced audio-video conferencing software application in the future.

Audio Conferencing Equipment

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Video Conferencing Equipment

Teleconferencing
Conferencing System
Audio Conferencing
Conference Call Services

Conference Phone
SoundStation
Speaker Phones
Wireless Conference Phones
IP Conference Phones
USB Conference Phones

Video Conferencing
Desktop Conferencing
Video Conferencing Software
HD Video Conferencing
Multi Point Conferencing

Web Conferencing
Web Meeting

Emergency Message Notification
Reverse 911
Emergency Management

Conference Call Phone - Free Shipping On Orders Over $299.00

We Accept All Credit Cards for Web Conferencing Solution

BBB Online for conference call services

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Telcom & Data offers collaboration technologies including Audio, Video and Web Conferencing Systems, Conference Phones, and Hosted Conference Call Services. Teleconferencing is no longer a luxury, it is a strategic requirement to manage information effectively and remain competitive. From weekly sales meetings, help desk support, distance learning, to customer end user training offerings, conferencing offers a fast and inexpensive alternative to travel. Owning your own conference bridge can greatly reduce travel expenses as well as providing an easier to use system that is custom to your specific requirements.

Out sourcing your conference calls to a conference call service can be cost effective for smaller users but for frequent users owning your own in house system can save your thousands annually. Most of our customers experience an ROI of only a few months with many added benefits when switching from a service to an in house system. Installing a conference bridge is easy Telcom & Data can install and setup your audio and web Conferencing Bridge in an afternoon. We offer bridges solutions for Government, Business, and Military applications from small 8 port analog audio conference systems to new state of the art custom VoIP and SIP Conference Bridges that go up to 960 ports.

Audio Conferencing

A conference call is a telephone call in which the calling party wishes to have more than one called party listen in to the audio portion of the call. The conference calls may be designed to allow the called party to participate during the call, or the call may be set up so that the called party merely listens into the call and cannot speak. It is often referred to as an ATC (Audio Tele-Conference).

Conference calls can be designed so that the calling party calls the other participants and adds them to the call - however, participants are usually able to call into the conference call themselves, by dialing into a special telephone number that connects to a "conference bridge" (a specialized type of equipment that links telephone lines).

Companies commonly use a specialized service provider who maintains the conference bridge, or who provides the phone numbers and PIN codes that participants dial to access the meeting or conference call.

Three-way calling is available (usually at an extra charge) for many customers on their home or office phone line. To three-way call, the first person one wishes to talk to is dialed. Then the Hook flash button (known as the recall button in the UK and elsewhere) is pressed and the other person's phone number is dialed. While it is ringing, flash / recall is pressed again to connect the three people together. This option allows callers to add a second outgoing call to an already connected call.

Audio Conference System

Audio Conference System & Teleconferencing Solution, also identified as Audio Conference Bridge

Our Audio Conferencing Bridge & Teleconferencing Solution connects seamlessly over TDM and Voice over IP networks. The audio conferencing system includes a comprehensive set of features and is easily customizable easily.

Our audio conference system is a conference bridge that caters to high volume scalability and integration required by Conferencing Service Provider and the ease of use and rapid return on investment sort after by enterprise clients.

The conference bridge is packaged to address the requirements for conferencing service providers and enterprises alike.

Conference Service Providers Selling conferencing as a service to their clients. They typically look for a solution with the following requirements Cost effective not limiting by per port costs and complex licensing, Scale according to their requirements Comprise features common in the conference industry plus easily address the unique requirements of their clients Easily integrate with their telecom infrastructure plus front and back end business processes.

Enterprises . Install a bridge for inhouse conferencing requirements connected to existing PBX infrastructure. Enterprise users of conference bridge wish to address the following requirements Ease of installation and use. Low entry price point and quick return of investements Directly terminating telecom lines and integrating into existing multi vendor PBX.s Custom greetings and labeling of the interfaces

Audio Conference Calls

Audio Conferencing provides high quality teleconferencing services at no charge. We offer an array of easy to use, productivity building tools, such as: Conference Call Recording, Online Access to Conference Call Recordings, Free Reservationless Conference Calling services and Recorded Conference Call Playback. These services are perfectly suited for one-on-one, or one-to-many coaching sessions, business meetings, tele-seminars, and other business functions.

Compact Cassette

The Compact Cassette, often referred to as audio cassette, cassette tape, cassette, or simply tape, is a magnetic tape sound recording format. Although originally designed for dictation, improvements in fidelity led the Compact Cassette to supplant reel-to-reel tape recording in most non-professional applications. Its uses ranged from portable audio to home recording to data storage for early microcomputers. Between the early 1970s and late 1990s, the cassette was one of the two most common formats for prerecorded music, first alongside the LP and later the Compact Disc. Cassette is a French word meaning "little box."

Compact Cassettes consist of two miniature spools, between which a magnetically coated plastic tape is passed and wound. These spools and their attendant parts are held inside a protective plastic shell. Two stereo pairs of tracks (four total) or two monaural audio tracks are available on the tape; one stereo pair or one monophonic track is played or recorded when the tape is moving in one direction and the second pair when moving in the other direction. This reversal is achieved either by manually flipping the cassette or by having the machine itself change the direction of tape movement ("auto-reverse").

Audio cable

An audio multicore cable, or most commonly known as a snake is a compact cable, typically about the diameter of a coin, used in the audio recording and entertainment fields, which contains typically 4-64 individual shielded pair microphone cables all housed by one common outer jacket.

High-end audio cables are claimed to improve the sound quality of high-fidelity audio systems but whether they actually do is hotly disputed. Since the audio signal passes through cables on its way from the source to the amplifier, or from the amplifier to the speakers, the cables will affect that signal. Whether or not the effects are measurable and/or audible remains a question. Cables between components are called interconnects. Speaker wires carry the signal between the amplifier and speakers.
For analog interconnecting cables, basic system frequency response can be calculated from the electrical properties of the cables, and components on either side of the cables. These electrical properties include resistance, capacitance, and inductance. For small-signal applications the degree of shielding is also important. All of these qualities are taken into account in the design of commercial and broadcast cables. High-end cables for the audiophile market often involve intricate construction geometries and exotic materials such as silver and oxygen-free, long-crystal, high-purity copper.
Digital cables, such as TOSLINK, coaxial and HDMI, are less vulnerable to signal degradation for the short lengths used in consumer audio which makes audiophile claims harder to measure.

Audio Books

An audiobook is a recording that is primarily of the spoken word as opposed to music. While it is often based on a recording of commercially available printed material, this is not always the case. It was not intended to be descriptive of the word "book" but is rather a recorded spoken program in its own right and not necessarily an audio version of a book.

Spoken audio was originally primarily available in school and public libraries and to a lesser extent in music shops. It was not until the 1980s that there began a concerted effort to attract book retailers. As book publishers entered the field of spoken-word publishing, the transition to book retailers carrying audiobooks became commonplace on bookshelves rather than in separate displays.

Audio Video Conferencing

Audio video conferencing is a shorthand way of describing a virtual conference where no one has to leave her office to meet up with the rest of the group. A virtual conference may use telephones, televisions, computers, conferencing software, collaborative software, file sharing, headsets, the Internet, or any combination of these equipments and tools. Slide presentation, streaming audio, and document sharing are some of the extras you can incorporate into this conferencing method. The ultimate goal is to make the meeting as realistic as possible, where everyone can see each other, hear each other, view and modify projects, and so on – all at a cost that eventually pays for itself in travel savings.
The audio video industry has yet to work out all of the kinks. As you can imagine, there can sometimes be technical difficulties in which lines can get torn down in a storm, computers and other equipment can malfunction, and so on. Furthermore, audio video conferencing doesn’t work very well for complicated communication techniques, such as those used in closing a sales deal. Audio video conferencing lends a rather impersonal air to meetings, and socializing and bonding don’t take place as they would in the real world.
You can set up for audio video conferencing in a number of different ways. The older method, still great for a wide variety of teleconferencing purposes, is to have one group in one room, another group in another room (perhaps in another city or country), and have them talk to each other. Each of the two groups utilizes a television, a video camera mounted on the television, a speakerphone, and perhaps some file sharing software for collaboration on computer projects. The newer style is online audio video conferencing, wherein each participant has her very own station in her very own office. This utilizes a computer, the Internet, a web cam, a headset, and file sharing software. This new method allows for even greater ease of planning and attendance, applicability to collaboration, and mobility. You could attend a web conference on the beach while the other attendees are on a train, at home, in a restaurant, or anywhere else.

Audio ?

Audio is sound within the acoustic range available to humans. An audio frequency (AF) is an electrical alternating current within the 20 to 20,000 hertz (cycles per second) range that can be used to produce acoustic sound. In computers, audio is the sound system that comes with or can be added to a computer. An audio card contains a special built-in processor and memory for processing audio files and sending them to speakers in the computer. An audio file is a record of captured sound that can be played back. Sound is a sequence of naturally analog signals that are converted to digital signals by the audio card, using a microchip called an analog-to-digital converter (ADC). When sound is played, the digital signals are sent to the speakers where they are converted back to analog signals that generate varied sound.

Audio files are usually compressed for storage or faster transmission. Audio files can be sent in short stand-alone segments - for example, as files in the Wave file format. In order for users to receive sound in real-time for a multimedia effect, listening to music, or in order to take part in an audio or video conference, sound must be delivered as streaming sound. More advanced audio cards support Wavetable, or recaptured tables of sound. The most popular audio file format today is MP3 (MPEG-1 Audio Layer-3).