We created a database of test recordings ourselves, since no public corpus of voicedata currently meets the specific criteria we set up for this study. The database contains vocal recordings by twenty male participants between the ages of 20 and 39. We asked each person to perform 30 passages of Mandarin pop songs using a karaoke machine in a quiet room. All of the passages were recorded at 22.05 kHz, 16 bits, in mono PCM wave. The karaoke accompaniments were output to a headset and were not captured in the recordings. The duration of each passage ranges from 17 to 26 seconds. We denoted the resulting 600 recordings by DB-Singing. Next, we asked each person to read the lyrics of the 30 song passages at a normal speed. All of the read utterances were recorded using the same conditions as those in DB-Singing. The resulting 600 utterances were denoted as DB-Speech.
The successor Radio Encryption Voice/Data HC-2650 unit has, as a new feature, three modes which can be used to meet very different requirements and priorities such as channel quality, deployment scenario and backward compati- bility in the most effective way. Added to this is the facility for data encryption. The unit works with virtually all standard radios of both new and slightly older designs (HF, VHF, UHF), allowing homogenous encryption in mixed network structures. Thanks to built- in interfaces, remote control of the operation is possible.
The CM115E equipment is a digital ciphering device that can be config- ured for voice or data applications. It can be used in conjunction with HF, VHF and UHF radios providing ei- ther narrow or wide band channels. The voice analogue signal is internal- ly converted to a digital signal, en- crypted through a high-grade securi- ty algorithm, modulated and sent to the external radios for transmission. The crypto algorithm is a propri- etary Marconi Selenia Communica- tions algorithm that can be cus- tomised by the end user.
The telecom operators today strive to provide seamless and high quality voice, data and multimedia services in a multi-device, mobile environment. Traditionally the principal revenue streams for telecom operators have been voice and messaging (SMS) with data coming in at a far third till recently. But while telcos had been quick to react to previous game changing developments such as the internet explosion and the emergence of cellular mobile communications in the 1990s, they seem to have been caught napping in the face of the newest challenge to their revenues, Over The Top (OTT) service providers. The OTT service providers deliver audio, video and other media over the internet and bypass the traditional operator‟s network. Since, the OTT players do not require any business or technology affiliations with network operators for providing such services, they are often known by the term "Over-The-Top" (OTT) applications. OTT players like Google, Facebook, Viber Media are enabled by technology advances such as open source platforms, smartphones, innovative services, cutting edge functionalities, super-fast IP networks and shift in consumer preferences towards their “freemium” based business models are seeing an increasing adoption rate. They do not contribute directly to telco‟s revenue but utilize the telecom operators‟ network and infrastructure. Internet is the heart and soul of these OTT applications, they cannot survive even a second with internet service providers and telecom operators. But the most worrying fact for the telcos is that these OTT players offer services that are close and almost free substitutes to their own offerings and a credible and measurable threat to their revenues. Thanks to the “freemium” based business models of these OTT players, consumer preferences have already moved from telcos‟ messaging(SMS) service to OTT players free messaging applications which again free surf on telecom operator‟s infrastructure. Now, the impact of OTT services on telcos‟ voice revenue is a recognized reality. Their impact on mobile data traffic and telcos data revenue are areas of key importance as this will tell whether impact on their voice revenue can be compensated by data revenue.
Voice over IP (VoIP) is one of the widely used protocols for transfer voicedata over Internet. More specifically, Voice over Internet Protocol (also called VoIP, IP Telephony, Internet telephony, Network Telephony and Digital Phone) is the routing of voice conversations over the Internet or any other IP-based network. The voicedata flows over a general-purpose packet-switched network, instead of traditional dedicated, circuit-switched voice transmission lines. While Voice over IP is often thought as little more than a method of obtaining free long-distance calling, the real value of VoIP is that it allows voice to become nothing more than another application in the data network. Thus allows all internet users to simple use VoIP for communicating each other without any additional charge. On the other hand VoIP does not only offer free long-distance call, but also a number of other services. VoIP makes easy some things that are difficult with traditional phone networks.
 Giuseppe Cattaneo, Luigi Catuogno, Fabio Petagna, Gianluca Roscigno (2015),” Reliable Voice-based Transactions over VoIP Communications” International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing,pp. 101-108
after completion. Alerting may be indicated at the destination. If both ringback and alerting are absent, check that the dialed digits are those of the destination DN. Redial, if necessary. If the call could not be established and the dialing was correct, record that an outgoing data call cannot be completed from this line and indicate the type of tone, if any, that was present at both ends.
According to the above-mentioned previous studies, the novelty of this case study that not all previous studies addressed the influence of using the DRX mechanism compared to the IDLE mechanism on the various types of multimedia and the overall network performance. In addition, the effect of DRX mechanisms short cycle timer and long cycle timer on the multimedia and the overall network performance under fading effects and signal attenuation due to the condition of user mobility. In this framework, a simulation developed to discuss two fundamental parts that have been investigated: Section one includes a detailed comparison between the two power-saving mechanisms the IDLE mechanism and the DRX mechanism with the employment of various sorts of multimedia such as voice, video, and HTTP traffic. The use of very critical QoS performance matrices could identify the influence of each mechanism on the total network performance. Section two concerns with the DRX mechanism and its timer modes; as there are several choices regarding the implementation of the
A device that connects any number of LANs. Uses standardized protocols to move packets efficiently to their destination. More sophisticated than bridges, connecting networks of different types (for example, star and token ring). Forwards data depending on the Network address (IP), not the Hardware (MAC) address. Routers are the only one of these four devices that will allow you to share a single IP address among multiple network clients. Resides on Network layer of the OSI model.
Important: If we did not sell it we will not support it! If the customer or dealer chooses to purchase his own PC equipment, he also purchases the obligation of configuring and supporting that system. A substantial service charge will be incurred if hardware setup assistance or hardware support is required from VoiceTrak. Please consider that a voice mail system must function 24 hours a day, 365 days a year. The equipment you choose must be of a very high quality. Low-cost, low-quality machines will incur much
Greeting Transfer mailboxes can be used as main greetings or as part of a V-Tree structure for directing callers. Voice Connection allows each transfer mailbox to have three greetings that may be controlled by time of day changes. Record the greetings referring to the section on Recording System Greetings. When you record a greeting you may either activate the new greeting or leave the old greeting active. The time of day will control which greeting is active. Enter the time of day (using a 24-hour clock) that the greeting will start playing and then enter the greeting number to play. If only one time of day is entered then that greeting will play at all times. A zero (0) is considered a blank field. GREETING NUMBER ONE (1) MUST BE RECORDED AND WILL ACT AS THE DEFAULT GREETING IF NO TIME OF DAY CHANGES ARE PROGRAMMED.
Welcome to VoiceTrak AVM6 (AVM6). Your new voice mail system has been designed to provide you with the latest features in call-processing technology in an easy-to-use format. AVM6 offers you enhanced connectivity in your business. The ability to easily tailor your mailbox for your own needs. Including convenience in retrieving your messages, and most of all, security and peace of mind that all of your messages are getting to you, no matter where in the world you are, and all with a minimum of effort. AVM6 has many user-friendly features, including:
Your system administrator can limit the number of digits you may dial during an outcall notification. Some pagers require 30 or 40 digits. Talk with your system administrator. Voice Announce Pagers are designed to play a voice message. It may be possible for VoiceTrak to call your voice pager, play the new message, save the new message as an old message, and not call you again until a new message has been received. Create a standard outcall dial sequence and add the letter "V" at the end:
1. MFCC – Mel Frequency Cepstrum Coefficients (MFCC) is the most important method used in the process of feature extraction in voice recognition. As it has frequency domain features, therefore it’s more accurate than time domain features .It represents the original cepstral of windowed short time signal which is expressed from Fast Fourier Transform (FFT). These coefficients are robust and dependable for the variations of speaker and the environment where operation is performed.
VoWi-Fi simply stands for voice over (EPC-integrated) Wi-Fiis the use of a wireless broadband network according to the IEEE 802.11 standards for the purpose of communication. it is a complementary technology to VoLTE and utilizes IMS technology to provide a packet voice service that is delivered over IP via a Wi-Fi network. The mobile user needs the same applications and services with the same accessibility, security, quality-of-service (QoS), and high availability delivered to wired users. The concept, and service, was introduced several years ago, but only in the last several years has the service started tobecome attractive as a result of the increasing possibility of roaming between Wi- Fi and mobile networks
In order to let multi-robots work cooperatively to retrieve a specified object from different areas, the tasks have been divided between the two robots. SIX is a scout for Roli, and Roli is the robot to actually pick up the object. The robots then start on opposite ends of a hallway and start scanning the room number on the wall. Overall, the objectives of this research include: make multiple robots navigate a series of areas; enable robots to transmit back the video signal to the system; provide voice control to users; develop algorithms for robots to retrieve specific objects from a random room; develop methods for communication between multiple robots; Wireless cell phone control.
If your company has voice mail, ask your system manager for details about using the voice mail system. For information about having your phone covered by the voice mail system, see Coverage, p. 20. If you frequently communicate with a small number of people (for example, as a receptionist for a few co-workers), there are two features you can use, both of which require programming a button. These are Signaling and Notify, described on p. 13.
The initial hardware and software of all Key Voice Technologies, Inc. (“Key Voice”) products accompanying this installation manual shall be referred to collectively herein as the “Product”. Non-Key Voice products are warranted solely by the manufacturer in accordance with the manufacturer’s warranty, and are sold by Key Voice “as is”. Key Voice warrants, to its purchaser, its authorized dealers and the end users of the Product, that, under normal operating conditions, (a) the Product hardware (except for fuses, lamps and other consumables) and the medium on which the Product software is contained will be free from defects in material and workmanship, and (b) the Product software will perform substantially in accordance with the specifications set out in the user guide accompanying the Product which is prepared by Key Voice, in each case for a period of one year, measured from the manufacturing date stamped on the Product hardware or software, as the case may be, provided however, development products, i.e., products which have not yet been approved by Key Voice for production, are sold pursuant to Key Voice’s field trial agreement and are warranted as set out therein. Key Voice’s sole obligation under this warranty or under any other legal obligation with respect to the Product is to repair or replace, at its option, the Product at its Sarasota, Florida, headquarters, free of charge, if the Product is deemed defective by Key Voice during the warranty period, with refurbished or new equipment or parts , at Key Voice’s option, when the Product is returned to Key Voice, freight or postage prepaid, during the warranty period, provided however, if Key Voice is not able, using reasonable efforts, to cure or correct a defect, Key Voice’s sole obligation shall then be to refund (or cause to be refunded) an equitable portion of the price Key Voice was paid for the Product. This warranty does not apply if, in the sole judgment of Key Voice, the Product, or any part(s