DVBViewer is a commercial DVB software used for watching, recording and organizing TV and Radio broadcasts. It supports multiple DVB adapters with EPG support as well as Teletext capabilities. Furthermore, this solution offers DiSEqC support as well as CI+ modules (for Hauppauge devices).
This software can display various EPG displays, as well as stream live television and recordings to other devices.
DVB-T2
DVB-T2 stands for Digital Video Broadcasting – Second Generation Terrestrial and is the newest broadcast transmission standard from the DVB consortium. It provides higher bitrate transmission of HDTV channels compared to its predecessor DVB-T, plus other advanced features like Time Frequency Slicing (TFS). TFS allows multiple radio-frequency channels to be combined together into a virtual channel for more efficient statistical multiplexing.
DVB-T2 protocol contains four nationwide multiplexes that broadcast in the UHF band 470-790MHz, and can be used for HDTV programming as well as various TV services. Furthermore, this technology frees up spectrum that was once dedicated for analog broadcasting which can now be utilized for other uses like 5G mobile broadband networks.
DVB-T2 and ATSC 3.0 broadcasts utilize OFDM modulation, which employs many subcarriers to ensure robust signal in noisy and interference-prone environments. Both technologies use low density parity check (LDPC) coding as error correction mechanisms while both standards support Bose-Chaudhuri-Hocquengham (BCH) error correction as error mitigation strategies. Furthermore, both technologies support HEVC for advanced video coding technology which reduces bandwidth requirements when transmitting high resolution videos while decreasing equipment costs due to minimal patent licensing fees.
DVB-T2 uses metadata, similar to other DVB protocols, that identifies programs as they air by providing their source, title, broadcaster and channel number. This metadata is transmitted within a ‘Service Information Frame’ sent over broadcast streams with other vital details; its encoded in XML makes integration easy with other systems.
DVBViewer is software developed specifically for DVB-T2 tuner cards and servers to record television and radio content, featuring an intuitive user-friendly interface. DVBViewer works seamlessly with this digital terrestrial television platform to record TV, radio, HD video, music files as well as user guides. It works on PCs equipped with modern graphics adapters as well as supporting many popular features like electronic Program Guide support, remote control support, on-screen display support as well as Teletext. DVBViewer can record/playback HD videos/music files as well.
DVBViewer is currently available for Windows, Linux, and Mac OS X computers and offers unique features such as decoding and transcoding HEVC video streams with Lanczos-Mitchinnetravali algorithms; Nearest Neighbor can even utilize CPU processing power to more efficiently record and process video footage.
DVBViewer client software is compatible with most DVB-T2 tuners, providing it with access to advanced capabilities of this new technology. It can decode and transmit HEVC video clips which can be four times more efficient than MPEG-2 and can record HDTV shows as well. NTSC/PAL TV formats are supported as well.
DVB-S2
DVB-S2 is a satellite transmission standard designed to support television, audio and data services. It offers features designed to improve system performance such as higher symbol rates, improved forward error correction and support for different modulation types. Additionally, this specification is backward compatible with existing DVB-S standards and DVB-DSNG specifications.
DVB-S2’s transmission modulation schemes enable an exponential increase in available data capacity on transponders. This is achieved by transmitting multiple transport streams on one digital carrier, using different multiplexes with differing levels of protection – enabling different combinations of HD and SD channels within a single transponder or supporting advanced encoding techniques to fit more HD channels into a single transponder.
DVB-S2, in addition to improving existing satellite transmission systems, can bring additional benefits in new applications. For instance, this standard can be utilized to provide interactive services for Direct-to-Home (DTH) viewers or collective antenna systems (Satellite Master Antenna Television (SMATV). Furthermore, it supports return channel functionality.
DVB-S2 can be configured either with single carrier per transponder (SCPT) or with multiple-carriers per transponder (FDM), both providing for optimal system performance. By matching transmission symbol rates to specific transponder characteristics, maximum system performance can be attained while FDM systems allow users to accommodate for various signal degradation levels.
DVB-S2 also boasts support for multiple symbol constellations, or mappings of data bits to symbols in the RF domain, that provide more efficient use of available bandwidth on transponders. For instance, one can configure their system so as only part of each frame is transmitted; this reduces transmission data rates while increasing signal-to-noise ratio (SNR).
DVB-S2 also supports IP-based input data interfaces into its modulators, representing a major advancement, as it allows the modulator to transmit pure data streams such as gigabit Ethernet connections. This opens the door for professional applications like satellite news gathering and large scale content distribution.
DVB-C
DVB-C is a cable transmission system designed to distribute digital television signals without replacing existing analogue channels. DVB-C makes use of existing 8 (or 7 or 6) MHz channels used for analogue TV distribution, but fills them instead with MPEG-2 compressed video, audio and data streams; multiplexed HDTV can also use one channel at once. Widely deployed throughout Europe and Australia – except Japan where another format exists on satellites at 110deg and 124deg east – this format is widely deployed across Europe and Australia while Japan uses different format on satellites at 110deg and 124deg east for DVB-C deployment;
DVB-C systems form the cornerstone of Digital Terrestrial Broadcasting – Digital Multimedia Broadcasting (DVB-DMB), an innovative transmission system able to offer HD broadcasts over terrestrial networks. DVB-DMB has quickly become an established service worldwide; especially popular among countries in central and eastern Europe as well as Australia and South Africa.
DVB-C requires only an ordinary television set to decode and display digital signals, making deployment more cost-effective for local operators than DVB-T.
DVB-C’s transmission technology is flexible enough to meet a range of service providers and network architectures, supporting Ethernet as well as SONET networks with greater resilience against packet loss and latency than Ethernet can. DVB-C also supports various service layers including IPTV, VoIP and data services.
To harness all of DVB-C’s capabilities, a software application must understand and process its signal. This application is known as a DVB-C client or encoder and must be compatible with hardware found within DVB-C receivers; additionally it should support multiplexing, error correction and transmission timings.
DVBViewer is an effective DVB-C client for Windows that works with BDA adapters from Hauppauge. This program enables users to watch and record digital TV and radio programming using features such as an Electronic Program Guide (EPG), remote control support, on-screen display with time shifting support and picture-in-picture. DVBViewer can be purchased worldwide for 15 euro or 22 US Dollars with an extended 30-day trial period included.
DVBViewer can connect to a DVB-C server running in a home network, providing it with all of the information it needs for streaming media over the Internet. This service can be especially beneficial to those with limited bandwidth as it reduces data transfer requirements while still delivering high-quality audio and video streams. In addition, recordings stored on DVB-C servers eliminate the need for separate recorders; additionally it displays favorites files to speed up startup time; it can even use remote servers provided they run on the same machine as DVBViewer!
