DOCSLIB.ORG

Introducing Fmextra by Vaughan Taylor, Prosound

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Introducing Fmextra by Vaughan Taylor, Prosound Telecoms, networking & broadcasting Vaughan Taylor Introducing FMeXtra by Vaughan Taylor, Prosound It is estimated that there are over 100 000 radio stations ‘on-air’ around the world today. FM radio remains a commercially attractive means of delivering content to end listeners, albeit that it is a relatively ‘inefficient’ means of utilising valuable bandwidth, as one channel = one programme. In some countries (particularly the USA), it the FMeXtra signal is an example of a multicarrier remains customary to make use of ‘subcarriers’ modulation (MCM). Other MCM signals may also - subsidiary communications authority (SCA) to be described as OFDM signals. Other familiar broadcast separate audio and/or data along MCM systems include IEEE 802.11g (WiFi), DVB-T, with the main FM stereo broadcast programme. and Eureka-147 (DAB). Typical applications have included the following Each constituent component signal in the (but not limited to); FMeXtra MCM signal spans a time interval of • Foreign language programming 1 µs, so that the baud rate of the FMeXtra signal • Bus despatching is 1 kHz. The actual number of data carriers depends upon the transmission mode. The • Radio reading services for the disabled guard interval is approximately 100 µs. • Stock market reports ‘Out-the-box’, FMeXtra includes support for • Utility load management Fig. 2: A spectrum analysis plot displaying the AAC, aacPlus (also known as HE AAC), AMR-WB, • Point-to-point and/or point-to-multipoint FMeXtra subcarrier. and AMR-WB+ audio codecs, but this may be messaging systems, and extended for other audio codecs as required. • Background ‘muzak’ channels for public The FMeXtra encoder implements a RTSP/RTP buildings. transmit additional information to its end listeners, (RFC 2326) streaming client so that pre-encoded such as programme identification (PI), programme SCAs make use of the available ‘spectrum’, audio streams, such as those generated by the type (PT) and traffic announcement (TA). which is located above the main and sub- Orban Opticodec and transported by RTSP- channel information, which is ‘frequency division This article introduces FMeXtra to the South African compliant servers such as Apple’s Quicktime, multiplexed’ (or FDM) into the audio baseband. An broadcast industry, as it offers a number of Darwin Streaming Servers and RealNetworks Helix illustration of the baseband is presented in Fig. 1. succinct advantages above its former analogue server may be directly propagated through the Traditionally, the analogue subcarriers were band- counterparts. FMeXtra system to receivers without transcoding. limited to 7,5kHz and multiplexed to lie in the FMeXtra also supports AAC/aacPlus streaming range 59,5kHz to 74,5kHz. Technical description according to the SHOUTcast and ICYcast In South Africa, the use of subcarriers has been The FM spectrum has remained under-utilised protocols. Support for the H.264 video codec is confined to the radio data system (or RDS) which for many years because digital communication planned in a later system release. was introduced in the early 1990s. Essentially the technology was not advanced enough A spectrum analysis plot displaying the FMeXtra RDS signal is injected at 57 kHz (with a mean to embed a useful number of bits into the subcarrier is shown in Fig. 2. deviation of ±2 kHz) and allows a radio station to available space. FMeXtra technology makes use of the most advanced communication FMeXtra receivers theory principles available today. The developers of the FMeXtra system, as Digital The FMeXtra signal itself is composed of many Radio Express have elected to design a specific other digital signals which are linearly combined receiving system, based around state-of-art to form the composite FMeXtra signal and then technology. The present Aruba model is offered inserted into the baseband spectrum, along as a tabletop model for home usage, although with the main programme. The signal therefore there are plans to evolve receivers for mobile includes: applications. • A reference signal FMeXtra applications • Carriers conveying system configuration and Fig. 1: Composition of the FM stereo baseband. FMeXtra can be safely used to replace the The left-hand illustration shows an equivalent data frame synchronisation information, and, applications that were formally suited to throughput of 64 kbps, while still allowing the station • A plurality of data-bearing carriers for analogue subcarrier services. A list of these to retain its stereo programming (including RDS). services. The diagram on the right shows that an equivalent was provided at the beginning of this article. throughput of 156kbps may be achieved should the The data carriers are all mutually orthogonal so station opt to transmit in mono. that they do not interfere with each other. Thus, Continued on page 68... 66 October 2008 - EngineerIT Telecoms, networking & broadcasting News ... continued from page 66 The standard FMeXtra configuration permits two stereo channels (operating at 24 kbps, coded in AAC+) to be broadcast alongside the normal FM channel. It is also possible to broadcast four 12 kbps mono channels in the same channel occupancy. One of the greatest opportunities for FMeXtra remains that a low cost data network is realised by default. Whilst the platform allows a station to deliver additional content to a target market, a further opportunity exists in affording the delivery of data for display billboards and utility load management. Contact Vaughan Taylor, Prosound, Tel 011 675-7763, [email protected] 68 October 2008 - EngineerIT.
Load more

Recommended publications
  • Transmitter Site Operations Determining Fmextra Injection
    The Broadcasters’ Desktop Resource www.theBDR.net … edited by Barry Mishkind – the Eclectic Engineer Transmitter Site Operations Determining FMeXtra Injection By Lyle Henry [May 2011] Modern modulation, especially Wizard to the IF output of an appropriate RF digital modulation, has in some ways outrun the front end such as the Belar FMM-2, RFA-4, or capabilities of the traditional modulation mon- DC-4 and connect the SCA monitor to The itors. This is especially true in the case of high Wizard’s composite output. speed digital subcarriers. How can a station utilize digital subcarriers and yet have confi- Note: If you are running IBOC (HD Radio) or dence in meeting FCC requirements? Lyle another adjacent channel digital signal, turn it Henry shows the way. off, or obtain the RF input from only the analog transmission path. These monitors are wideband Getting the highest possible injection on the and not designed to ignore significant energy subcarriers without affecting the main channel above 100 kHz. audio has always required careful adjustments. What follows is information on how to measure Setting up these monitors may require a review the digital subcarriers, along with total modula- of The Wizard and SCMA-1 manuals as the tion, when using FMeXtra subcarrier generators. operation of the four buttons is not too obvious. Proper saving is especially important, or you We will use the the Belar FMMA-1 “The Wiz- will not have the parameters you selected after ard” and the Belar SCMA-1 SCA monitor for any changes or power cycling. If you need a this discussion.
    [Show full text]
  • Dspxtreme-FMHD
    DSPXtreme-FMHD Broadcast Audio Processor Operational Manual Version 1.30 www.bwbroadcast.com Table Of Contents Warranty 3 Safety 4 Introduction to the DSPX treme 6 DSPXtreme connections 7 DSPXtreme meters 8 Quickstart 10 An introduction to audio processing 11 Source material quality 12 Pre-emphasis 12 Low pass filtering and output levels 12 The DSPXtreme and its processing structure 13 The processing path 13 Processing block diagram 15 The DSPXtreme menu structure 16 Processing paramters 17 Setting up the processing on the DSPXtreme 24 Getting the sound that you want 34 Managing presets 37 Factory presets 38 Remote control of the DSPXtreme 39 Remote trigger port 45 Clock based control 46 Specifications 47 Preset Sheet Appendix A Table Of Contents WARRANTY BW Broadcast warrants the mechanical and electronic components of this product to be free of defects in mate- rial and workmanship for a period of one (1) year from the original date of purchase, in accordance with the war- ranty regulations described below. If the product shows any defects within the specified warranty period that are not due to normal wear and tear and/or improper handling by the user, BW Broadcast shall, at its sole discretion, either repair or replace the product. If the warranty claim proves to be justified, the product will be returned to the user freight prepaid. Warranty claims other than those indicated above are expressly excluded. Return authorisation number To obtain warranty service, the buyer (or his authorized dealer) must call BW Broadcast during normal business hours BEFORE returning the product. All inquiries must be accompanied by a description of the problem.
    [Show full text]
  • (12) United States Patent (10) Patent No.: US 8,983,365 B2 Capparelli Et Al
    USOO898.3365B2 (12) United States Patent (10) Patent No.: US 8,983,365 B2 Capparelli et al. (45) Date of Patent: Mar. 17, 2015 (54) SYSTEMS AND METHODS FOR (52) U.S. Cl. COMMUNICATING AND RENDERING CPC ............... H04H 60/06 (2013.01); H04H 20/16 ELECTRONIC PROGRAM GUIDE (2013.01); H04H 60/07 (2013.01); H04H 60/72 INFORMATION VLADIGITAL RADIO (2013.01); H04H 220 1/183 (2013.01); H04H BROADCAST TRANSMISSION 220 1/186 (2013.01) USPC ................. 455/3.06; 725/62; 725/74; 725/32 (58) Field of Classification Search (75) Inventors: Armond R. Capparelli, Milltown, NJ USPC ........... 455/3.06, 121; 725/32, 80, 95, 39,90, (US); Joseph F. D'Angelo, Bedminster, 725/64; 370/514,473; 348/E7.071, 731, NJ (US); Joseph P. Haggerty, Madison, 348/E17.005, E5. 105, E7.061, E7.073, NJ (US); Steven A. Johnson, Ellicott 348/423.1, 429.1 City, MD (US); Bei Li, Clarksville, MD See application file for complete search history. (US); Lia Meller, Summit, NJ (US); Marek Milbar, Huntingdon Valley, PA (56) References Cited (US); Jordan Scott, Cranford, NJ (US); Chinmay M. Shah, Piscataway, NJ U.S. PATENT DOCUMENTS (US); Kun Wang, New Providence, NJ 5,134,709 A 7, 1992 Bi et al. (US); Girish K. Warrier, Edison, NJ 5,541,738 A 7/1996 Mankovitz (US); Christopher R. Gould, Epsom (GB) (Continued) OTHER PUBLICATIONS (73) Assignee: iBiquity Digital Corporation, NRSC-5-A IBOC Standard dated Sep. 2005 (Source: http://www. Columbia, MD (US) nirscstandards.org). (Continued) (*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 Primary Examiner — Golam Sorowar U.S.C.
    [Show full text]
  • Manual Para Radialistas Analfatécnicos; 2010
    EC/2010/CI/PI/14 Santiago García Gago www.analfatecnicos.net MANUAL PARA RADIALISTASEC/2010/CI/PI/14 ANALFATÉCNICOS Santiago García Gago MANUAL PARA RADIALISTAS ANALFATÉCNICOS Organización de las Naciones Unidas para la Educación, CAPITULOla Ciencia 3 y la Cultura COMPUTADORES Y SOFTWARE EN LA RADIO Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura 51 ¿CUÁLES SON LAS PARTES DE UNA COMPUTADORA? PC y MAC. Motherboard, procesador y tarjetas. Trabajamos con ellas todos los días. A veces, las amamos y otras, cuando se “cuelgan”, las odiamos. Son las computadoras, en otros lugares también llamadas computador u ordenador. La computadora es la parte “dura” de un sistema informático, lo que se conoce como hardware. Son componentes electrónicos que necesitan de la parte “blanda” o software para poder funcionar. DIFERENTES TIPOS Hay dos estándares de computadoras: 1. PC (Personal Computer) Trabajan con sistemas operativos (SO) de Software Libre (diferentes distribuciones de Linux como Ubuntu) o de Microsoft (Windows 7, Vista, XP y anteriores). Dentro de las PC podemos encontrar computadoras de marca o las llamadas clones, armadas con componentes de diferentes marcas. Fueron desarrolladas inicialmente por IBM. 2. MAC (Macintosh) Son las computadoras fabricadas por Apple, la marca de la manzanita. Actualmente, la mayoría de componentes son similares a la PC, pero nacieron con una construcción o arquitectura informática distinta. Funcionan con sistemas operativos de la misma marca. PARTES DEL SISTEMA Computadora Son todos los elementos que se encuentran dentro del case o caja, conocido también como CPU. Periféricos o dispositivos de entrada Son los encargados de suministrar los datos a la computadora: Entre ellos se encuentran, principalmen- te, el teclado y el ratón.
    [Show full text]
  • Bibliography
    Bibliography [ALAMOUTI] Alamouti, S.: A Simple Transmit Diversity Technique for Wireless Communications, IEEE Journal, October 1998 [ARIB] Association of Radio Business and Industries, Arib Std.-B10 Ver- sion 3.2, Service Information for Digital Broadcasting System, 2001 [ATSC-MH] ATSC-M/H Standard, Part 1, A/153, 2009 [AVHE100] Rohde&Schwarz AVHE100, Headend Solution for Encoding and Multiplexing, 2015 [A53] ATSC Doc. A53, ATSC Digital Television Standard, September 1995 [A65] ATSC Doc. A65, Program and System Information Protocol for Terrestrial Broadcast and Cable, December 1997 [A133] Implementation Guidelines for a Second Generation Digital Ter- restrial Television Broadcasting System (DVB-T2), DVB Document A133, February 2009 [A138] Digital Video Broadcasting (DVB), Frame Structure Channel Cod- ing and Modulation for a Second Generation Digital Transmission System for Cable Systems (DVB-C2), April 2009 [A/300] ATSC3.0: ATSC3.0 System Overview [A/322] ATSC3.0: Physical Layer Protocol [A/324] ATSC3.0: Scheduler/Studio to Transmitter Link [BEST] Best, R.: Handbuch der analogen und digitalen Filterungstechnik. AT Verlag, Aarau, 1982 [BOSSERT] Bossert, M.: Kanalcodierung. Teubner, Stuttgart, 1998 [BRIGHAM] Brigham, E. O.: FFT, Schnelle Fouriertransformation. Oldenbourg, München 1987 [BRINKLEY] Brinkley, J.: Defining Vision - The Battle for the Future of Television. Harcourt Brace, New York, 1997 [BTC] Rohde&Schwarz, Broadcast Test Center BTC, Handbuch [KWS_VAROS109] KWS Electronic VAROS109, Digitaler Satelliten- Messempfänger [BUROW] Burow, R., Mühlbauer, O., Progrzeba, P.: Feld- und Labormes- sungen zum Mobilempfang von DVB-T. Fernseh- und Kinotechnik 54, Jahrgang Nr. 3/2000 © Springer Nature Switzerland AG 2020 1003 W. Fischer, Digital Video and Audio Broadcasting Technology, Signals and Communication Technology, https://doi.org/10.1007/978-3-030-32185-7 1004 Bibliography [CHANG] Robert W.
    [Show full text]
  • La Era Digital De La Radio
    La era digital de la radio Carlos Rivadeneyra Olcese Universidad de Lima, Perú [email protected] Resumen La radio, el primer medio eléctrico de comunicación masiva, atraviesa actuales momentos de cambio tecnológico ante la digitalización en su producción y distribución de contenidos, en el acceso y consumo por parte de sus usuarios y las estrategias para elaboración de contenidos sonoros. Las sensibilidades y prácticas sociales de la radio en el escenario digital son diferentes a las originadas y asumidas por el medio sonoro en momentos precedentes, por ende proponemos entender al actual como un momento, de mutación de este medio, en el cual se inicia la edad digital de la radio. Abstract The radio, the very first electric mean of massive communication goes through technological changes facing new digital production processes and distribution of contents. These changes can be highlighted throughout the strategy used on the creation of audible content as well as on how it is accessed and consumed by users. Social sensitivity and practices on the digital radio scene are much different to the ones used on an earlier era. Thus, we propose understanding today as a moment of mutation for this media, a moment in which the digital era of the radio begins. Palabras clave: Radio, digital, nuevos medios 1. Nuevos medios, crisis y convergencia Para los historiadores Gitelman y Pingree (2003) hablar de nuevos medios es referirse a varios momentos de la historia de la comunicación y de la sociedad, según sus observaciones del siglo XVIII y XIX cada que surgen nuevos medios pasan por una fase de crisis de identidad, una crisis precipitada por la situación incierta del nuevo medio en relación a los medios establecidos.
    [Show full text]
  • OPTIMOD-Pcn Can Increase the Density and Loudness of the Program Material
    www.orban.com Advanced Optimod audio processing runs natively on Intel x86/Windows platform overview Orban’s Model 1600 OPTIMOD-PCn is audio From the ground up, OPTIMOD-PCn 1600 was processing software that is available both as designed for professionals. It offers broadcast- a software-only product for Orban-approved quality digital signal processing that is Windows® 7 (and higher) computers and pre- suitable for both live streaming and on- installed on a host Windows computer. The host demand programming. OPTIMOD-PCn uses computer can be configured at the factory to run the power of Intel’s x86 architecture provide advanced audio processing software (called a consistent, well-produced sound to the OPTIMOD-PCn) and MPEG-4 AAC/HE-AACv2/ consumer by performing phase skew correction, MP3 streaming audio codecs (from Orban’s stereo enhancement, automatic gain control partner Modulation Index) software natively on (AGC), equalization, multiband gain control, its Intel processor. Depending on its ordered stereo-to-surround upmixing, peak-level configuration, the 1600 can run multiples control, and automatic loudness control. instances of monophonic or stereo processing, and these can be mixed and matched as OPTIMOD-PCn’s setup, metering, and subjective required. Orban’s exclusive Optimix® stereo loudness control incorporate contemporary 5.0 surround upmixer can be applied to stereo concepts of “target loudness” based on the ITU-R source material to create “instant surround” BS.1770 loudness measurement algorithm and with excellent downmix compatibility. The on Orban’s third-generation refinements to the 1600 is equally suited for mastering, netcasts CBS (Jones & Torick) loudness controller and and digital radio broadcasting.
    [Show full text]
  • Optimod-PC 1101 Manual V
    Operating Manual Optimod-PC 1101 Digital Audio Processor PCI Sound Card Software Version 1.0 IMPORTANT NOTE: Refer to the unit’s rear panel for your Model #. Model Number: Description: 1101 OPTIMOD-PC Digital Audio Processor on a PCI Sound Card. OPTIMOD-PC is a broadcast-quality audio processor offering gain-riding AGC, para- metric equalization, multiband compressor, and look-ahead peak limiting. 1101/CBLXLR Pre-wired cable option for 1101 I/O Interface, terminated in XLR connectors. 1101/CBLRCA Pre-wired cable option for 1101 I/O Interface, terminated in RCA connectors. 1101/CBL Pre-wired cable option for 1101 I/O Interface, unterminated. CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. This symbol, wherever it appears, alerts you to This symbol, wherever it appears, alerts you to important the presence of uninsulated dangerous voltage operating and maintenance instructions in the accompa- inside the enclosure ⎯ voltage that may be nying literature. Read the manual. sufficient to constitute a risk of shock. In accordance to the WEEE (waste electrical and electronic equipment) direc- tive of the European Parliament, this product must not be discarded into the municipal waste stream in any of the Member States. This product may be sent back to your Orban dealer at end of life where it will be reused or recycled at no cost to you. If this product is discarded into an approved municipal WEEE collection site or turned over to an approved WEEE recycler at end of life, your Orban dealer must be notified and supplied with model, serial number and the name and location of site/facility.
    [Show full text]
  • The Future of Radio Broadcasting in Europe Replies to Questionnaires
    Rapportnummer Datum RSPG10-349 bis 2010-09-23 The future of radio broadcasting in Europe Replies to questionnaires Working Group RSPG10-316 Future of Radio Broadcasting Post- och telestyrelsen Box 5398 102 49 Stockholm 08-678 55 00 [email protected] www.pts.se Kommunikationsmyndigheten PTS Post- och telestyrelsen 2 Introduction At its meeting on the 11th February 2010 the Radio Spectrum Policy Group (RSPG) decided that there was a need to study in more detail the future of radio broadcasting in Europe with a view to understand possible spectrum implications. A working group was formed to undertake the work, chaired by Sweden. Two questionnaires were sent out by the group to both member states and industry – asking for the view on strategic challenges and opportunities of the radio broadcasting sector today. The questionnaire to member states was comprised of four parts – public policy objectives, market issues, European initiatives and usage of spectrum. In the case of the industry the questionnaire was comprised of four questions covering both market and technical aspects. However, not all replies covered all questions. The conclusions by the Working Group based on these replies can be found in a separate report presented to RSPG in November 2010. In this document the replies from member states are presented as is – the replies from industry have been sorted in the order of reasoning that the fore mentioned report has been put together. There is however a great value just in having all the replies being put together as in this document – for everyone to take part of and gain knowledge of the status of Radio Broadcasting in Europe today.
    [Show full text]
  • Introduction to the Dspxtra-FM
    DSPXtraincorporating the RMS Leveller Broadcast Audio Processor Operational Manual Version 2.30 www.bwbroadcast.com Table Of Contents Warranty 3 Safety 4 Forward 6 Introduction to the DSPX tra-FM 7 DSPXtra-FM connections 8 DSPXtra-FM meters 9 DSPXtra-FM status LEDs 10 Quickstart 11 An introduction to audio processing 12 Ariane multiband leveller 13 Source material quality 16 Pre-emphasis 16 The DSPXtra-FM and its processing structure 17 The processing path 17 Processing block diagram 19 User levels 20 The DSPXtra-FM menu system overview 21 The menu structure 22 Processing parameters 23 Setting up the processing on the DSPXtra-FM 30 Getting the sound that you want 38 Managing presets 42 Factory presets 43 Remote control of the DSPXtra-FM 45 Remote trigger port 52 Security code locks 53 Clock based control 54 Specifications 55 USB drivers Appendix A Preset Sheet Appendix B Table Of Contents 2 WARRANTY BW Broadcast warrants the mechanical and electronic components of this product to be free of defects in mate- rial and workmanship for a period of one (1) year from the original date of purchase, in accordance with the war- ranty regulations described below. If the product shows any defects within the specified warranty period that are not due to normal wear and tear and/or improper handling by the user, BW Broadcast shall, at its sole discretion, either repair or replace the product. If the warranty claim proves to be justified, the product will be returned to the user freight prepaid. Warranty claims other than those indicated above are expressly excluded.
    [Show full text]
  • Documentation G771/00593/07
    Federal Network Agency FMeXtra Compatibility Measurements September 07 Radio Monitoring Station Munich Documentation G771/00593/07 Compatibility Measurements FMeXtra interfering with Aeronautical Radionavigation Thomas Hasenpusch BNetzA Station Munich P.O. Box 65 00 10 D-81213 München Germany Phone: (+49) 89 386 06 216 Fax: (+49) 89 386 06 183 e-mail: [email protected] Roland Effinger BNetzA Station Konstanz P.O. Box 5466 D-78433 Konstanz Germany Phone: (+49) 7531 935 205 Fax: (+49) 7531 935 183 e-mail: [email protected] Felix Schad Fachhochschule Kaiserslautern Morlautererstrasse 31 D-67657 Kaiserslautern Germany Phone: (+49) 631 3724 226 e-mail: [email protected] September 2007 page 1 Federal Network Agency FMeXtra Compatibility Measurements September 07 ________________________________________________________________________ Contents 0 Executive Summary .............................................................................................................. 3 1 Introduction, aim of measurements .................................................................................. 4 2 Receiver selection ................................................................................................................ 4 3 Wanted signals...................................................................................................................... 5 3.1 Description........................................................................................................................ 5 3.2 Failure criteria..................................................................................................................
    [Show full text]
  • PC-1101E-A3-Brochure.Pdf
    DAB+/HD Radio/Streaming OPTIMOD-PC OPTIMOD-PC DAB+/HD Radio/Streaming Audio Processing PC Card 1101e 1101e Audio Processing PC Card TECHNICAL DETAILS (continued from page 3) The OPTIMOD-PC 1101e audio processing card is appropriate for all Analog Audio Inputs/Outputs Stereo digital transmission media and channels. Nominal Input level: –10.0 to +4.0 dBu (VU) or -2 dBu to +21 dBu (PPM) It tailors your audio signal to help you Output level: +4dBu nominal; Clip level +18dBu unbalanced, +24dBu compete in audio netcasting, HD Radio, balanced DAB, DAB+, DRM, and other dedicated Digital Audio Inputs/Outputs 2 x Stereo input AES3 or S/PDIF, 24 bits resolution digital radio services, FMExtra™ and Input Reference Level: Variable within the range of –30 dBFS to –7 dBFS other digital subcarriers, mastering, (VU) or -23 dBFS to 0dBFS (PPM) audio production, and many others. Video-oriented presets use OPTIMOD-PC’s built-in CBS 2 x Stereo outputs AES3 or S/PDIF Loudness Controller™ to make OPTIMOD-PC an unsurpassed choice for mono or stereo sound-for- Output Level (100% peak modulation): –20.0 to 0.0 dBFS software controlled picture applications, including HDTV, DVB-x digital television, and audio/video netcasting. Input/Output Sample Rate For AES3 I/O: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz, OPTIMOD-PC is useful for users with multiple streams because you can load one computer with as automatically detected (input) and user-selected (output). Input and output many OPTIMOD-PC cards as you have free PCI slots, each card handling one stereo program.
    [Show full text]