Basic Manual Hookup Step1: Choose Your Speaker Layout
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Ts 103 190-2 V1.2.1 (2018-02)
ETSI TS 103 190-2 V1.2.1 (2018-02) TECHNICAL SPECIFICATION Digital Audio Compression (AC-4) Standard; Part 2: Immersive and personalized audio 2 ETSI TS 103 190-2 V1.2.1 (2018-02) Reference RTS/JTC-043-2 Keywords audio, broadcasting, codec, content, digital, distribution, object audio, personalization ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. -
Dolby AC-4, Please Visit Dolby.Com/AC-4
NEXT-GENERATION AUDIO Dolby ® AC-4 For more information on Dolby AC-4, please visit Dolby.com/AC-4. ® ® NEX T-GENERATION AUDIO ED2 OR Dolby AC-4 PCM & METADATA AC-3 AC-4 PCM Integrating Personalized and Immersive Programming into Broadcast Operations The diagram below outlines a representative end-to-end signal flow for live and post-produced content through the broadcast ecosystem. PRODUCTION OPEN STANDARDS OUTSIDE BROADCAST BROADCASTER PAY TV OPERATOR CONFIDENCE MONITOR OUTPUT LEGACY RENDERER/ OBJECT AUDIO PROCESSOR ENCODER CHANNEL AUDIO OBJECT METADATA AUDIO MONITORING METADATA ANALYSIS GENERATION DISTRIBUTION INTEGRATED ENCODER RECEIVER/ MASTER DECODER CONTROL CHANNEL METADATA & OBJECT CHANNEL / GROUPING EMISSION INTEGRATED EMISSION OBJECT ROUTER AND OBJECT AUDIO ENCODER RECEIVER/ ENCODER DEFINITION DECODER PASSTHROUGH ANALYSIS PCM RENDERING AND PROCESSING INGEST PLAYOUT AUDIO SERVER SERVER MONITORING METADATA PCM MEZZANINE CONTRIBUTION AD STREAMING TRANSPORT FORMAT ENCODER MODULATOR/ SERVER ENCODER ENCODING FIBER MUX MUX/ SPLICER STREAMING ENCODER POSTPRODUCTION CDN ANTENNA CDN CONFIDENCE MONITOR OUTPUT OBJECT AUDIO PROCESSOR IN THE HOME SET-TOP BOX CHANNEL METADATA OBJECT AUDIO METADATA ANALYSIS GENERATION DEMODULATOR CHANNEL METADATA & OBJECT CHANNEL / ® GROUPING OBJECT AC-4 HDMI AND OBJECT AUDIO DECODER FORMATTER DEFINITION ANALYSIS PCM RENDERING AND PROCESSING TABLET/SMARTPHONE TV TO AVR / SOUNDBAR METADATA TO HEADPHONES TO SPEAKERS PCM ITU-R BWAV ADM (MXF, IMF) PACKAGING OBJECT APP AC-4 HEADPHONE RECEIVER / AC-4 HDMI® & CHANNEL DECODER RENDERER PROCESSOR DECODER FORMATTER INTERCHANGE TO AVR / SOUND BAR METADATA ED2 ENCODER PCM AC-4 IMMERSIVENESS Dolby AC-4 natively supports immersive audio to move sound around the audience in three-dimensional space. Both channel-based and object-based immersive audio can be delivered to the home and played back on speakers or headphones. -
Avid Supported Video File Formats
Avid Supported Video File Formats 04.07.2021 Page 1 Avid Supported Video File Formats 4/7/2021 Table of Contents Common Industry Formats ............................................................................................................................................................................................................................................................................................................................................................................................... 4 Application & Device-Generated Formats .................................................................................................................................................................................................................................................................................................................................................................. 8 Stereoscopic 3D Video Formats ...................................................................................................................................................................................................................................................................................................................................................................................... 11 Quick Lookup of Common File Formats ARRI..............................................................................................................................................................................................................................................................................................................................................................4 -
Video Codec Requirements and Evaluation Methodology
Video Codec Requirements 47pt 30pt and Evaluation Methodology Color::white : LT Medium Font to be used by customers and : Arial www.huawei.com draft-filippov-netvc-requirements-01 Alexey Filippov, Huawei Technologies 35pt Contents Font to be used by customers and partners : • An overview of applications • Requirements 18pt • Evaluation methodology Font to be used by customers • Conclusions and partners : Slide 2 Page 2 35pt Applications Font to be used by customers and partners : • Internet Protocol Television (IPTV) • Video conferencing 18pt • Video sharing Font to be used by customers • Screencasting and partners : • Game streaming • Video monitoring / surveillance Slide 3 35pt Internet Protocol Television (IPTV) Font to be used by customers and partners : • Basic requirements: . Random access to pictures 18pt Random Access Period (RAP) should be kept small enough (approximately, 1-15 seconds); Font to be used by customers . Temporal (frame-rate) scalability; and partners : . Error robustness • Optional requirements: . resolution and quality (SNR) scalability Slide 4 35pt Internet Protocol Television (IPTV) Font to be used by customers and partners : Resolution Frame-rate, fps Picture access mode 2160p (4K),3840x2160 60 RA 18pt 1080p, 1920x1080 24, 50, 60 RA 1080i, 1920x1080 30 (60 fields per second) RA Font to be used by customers and partners : 720p, 1280x720 50, 60 RA 576p (EDTV), 720x576 25, 50 RA 576i (SDTV), 720x576 25, 30 RA 480p (EDTV), 720x480 50, 60 RA 480i (SDTV), 720x480 25, 30 RA Slide 5 35pt Video conferencing Font to be used by customers and partners : • Basic requirements: . Delay should be kept as low as possible 18pt The preferable and maximum delay values should be less than 100 ms and 350 ms, respectively Font to be used by customers . -
Frequently Asked Questions About Sound Blaster X7 Ver
Frequently Asked Questions about the Sound Blaster X7 General 1. Why is the Sound Blaster X7 so light? The Sound Blaster X7 was designed with an external power adapter, as opposed to regular amplifiers with internal transformers, which greatly takes away the bulk and weight from the product itself. The combined weight of the Sound Blaster X7 unit together with the power adapter is approximately 1.1 kg. The Sound Blaster X7 was engineered and designed for power efficiency, heat management and component synergy, resulting in reduced overall weight. We also wanted to create a product with a small footprint that can easily placed next to a desktop computer or in a living room home audio setup. 2. How is heat being managed on the Sound Blaster X7? The Sound Blaster X7 uses an efficient power amplifier that only requires a small heat sink for heat dissipation. The Sound Blaster X7 also complies with ErP, the latest European Union Directive for energy management. 3. Do I need to upgrade to the 24V, 6A high power adapter? The Sound Blaster X7 comes bundled with a 24V, 2.91A power adapter, which should give you 20+20W – 27+27W (into 8 ohms speakers) and 35+35W – 38+38W (into 4 ohms speakers) in normal usage scenarios. Such output power is sufficient in an average room setup. You will only need an upgrade to the higher power adapter if you require more audio power. Connectivity to Audio/Video (AV) Systems 1. I currently have an AV system at home. How do I connect the Sound Blaster X7 to it? You can connect the Sound Blaster X7 to your home AV system via TOSLINK*. -
Audio Coding for Digital Broadcasting
Recommendation ITU-R BS.1196-7 (01/2019) Audio coding for digital broadcasting BS Series Broadcasting service (sound) ii Rec. ITU-R BS.1196-7 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio- frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Recommendations (Also available online at http://www.itu.int/publ/R-REC/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management SNG Satellite news gathering TF Time signals and frequency standards emissions V Vocabulary and related subjects Note: This ITU-R Recommendation was approved in English under the procedure detailed in Resolution ITU-R 1. -
Bar 2.1 Deep Bass
BAR 2.1 DEEP BASS OWNER’S MANUAL JBL_SB_Bar 2.1_OM_V3.indd 1 7/4/2019 3:26:40 PM IMPORTANT SAFETY INSTRUCTIONS Verify Line Voltage Before Use The JBL Bar 2.1 Deep Bass (soundbar and subwoofer) has been designed for use with 100-240 volt, 50/60 Hz AC current. Connection to a line voltage other than that for which your product is intended can create a safety and fire hazard and may damage the unit. If you have any questions about the voltage requirements for your specific model or about the line voltage in your area, contact your retailer or customer service representative before plugging the unit into a wall outlet. Do Not Use Extension Cords To avoid safety hazards, use only the power cord supplied with your unit. We do not recommend that extension cords be used with this product. As with all electrical devices, do not run power cords under rugs or carpets, or place heavy objects on them. Damaged power cords should be replaced immediately by an authorized service center with a cord that meets factory specifications. Handle the AC Power Cord Gently When disconnecting the power cord from an AC outlet, always pull the plug; never pull the cord. If you do not intend to use this speaker for any considerable length of time, disconnect the plug from the AC outlet. Do Not Open the Cabinet There are no user-serviceable components inside this product. Opening the cabinet may present a shock hazard, and any modification to the product will void your warranty. -
Surround Sound Processed by Opus Codec: a Perceptual Quality Assessment
28. Konferenz Elektronische Sprachsignalverarbeitung 2017, Saarbrücken SURROUND SOUND PROCESSED BY OPUS CODEC: APERCEPTUAL QUALITY ASSESSMENT Franziska Trojahn, Martin Meszaros, Michael Maruschke and Oliver Jokisch Hochschule für Telekommunikation Leipzig, Germany [email protected] Abstract: The article describes the first perceptual quality study of 5.1 surround sound that has been processed by the Opus codec standardised by the Internet Engineering Task Force (IETF). All listening sessions with up to five subjects took place in a slightly sound absorbing laboratory – simulating living room conditions. For the assessment we conducted a Degradation Category Rating (DCR) listening- opinion test according to ITU-T P.800 recommendation with stimuli for six channels at total bitrates between 96 kbit/s and 192 kbit/s as well as hidden references. A group of 27 naive listeners compared a total of 20 sound samples. The differences between uncompressed and degraded sound samples were rated on a five-point degradation category scale resulting in Degradation Mean Opinion Score (DMOS). The overall results show that the average quality correlates with the bitrates. The quality diverges for the individual test stimuli depending on the music characteristics. Under most circumstances, a bitrate of 128 kbit/s is sufficient to achieve acceptable quality. 1 Introduction Nowadays, a high number of different speech and audio codecs are implemented in several kinds of multimedia applications; including audio / video entertainment, broadcasting and gaming. In recent years the demand for low delay and high quality audio applications, such as remote real-time jamming and cloud gaming, has been increasing. Therefore, current research objectives do not only include close to natural speech or audio quality, but also the requirements of low bitrates and a minimum latency. -
Lecture 11 : Discrete Cosine Transform Moving Into the Frequency Domain
Lecture 11 : Discrete Cosine Transform Moving into the Frequency Domain Frequency domains can be obtained through the transformation from one (time or spatial) domain to the other (frequency) via Fourier Transform (FT) (see Lecture 3) — MPEG Audio. Discrete Cosine Transform (DCT) (new ) — Heart of JPEG and MPEG Video, MPEG Audio. Note : We mention some image (and video) examples in this section with DCT (in particular) but also the FT is commonly applied to filter multimedia data. External Link: MIT OCW 8.03 Lecture 11 Fourier Analysis Video Recap: Fourier Transform The tool which converts a spatial (real space) description of audio/image data into one in terms of its frequency components is called the Fourier transform. The new version is usually referred to as the Fourier space description of the data. We then essentially process the data: E.g . for filtering basically this means attenuating or setting certain frequencies to zero We then need to convert data back to real audio/imagery to use in our applications. The corresponding inverse transformation which turns a Fourier space description back into a real space one is called the inverse Fourier transform. What do Frequencies Mean in an Image? Large values at high frequency components mean the data is changing rapidly on a short distance scale. E.g .: a page of small font text, brick wall, vegetation. Large low frequency components then the large scale features of the picture are more important. E.g . a single fairly simple object which occupies most of the image. The Road to Compression How do we achieve compression? Low pass filter — ignore high frequency noise components Only store lower frequency components High pass filter — spot gradual changes If changes are too low/slow — eye does not respond so ignore? Low Pass Image Compression Example MATLAB demo, dctdemo.m, (uses DCT) to Load an image Low pass filter in frequency (DCT) space Tune compression via a single slider value n to select coefficients Inverse DCT, subtract input and filtered image to see compression artefacts. -
(A/V Codecs) REDCODE RAW (.R3D) ARRIRAW
What is a Codec? Codec is a portmanteau of either "Compressor-Decompressor" or "Coder-Decoder," which describes a device or program capable of performing transformations on a data stream or signal. Codecs encode a stream or signal for transmission, storage or encryption and decode it for viewing or editing. Codecs are often used in videoconferencing and streaming media solutions. A video codec converts analog video signals from a video camera into digital signals for transmission. It then converts the digital signals back to analog for display. An audio codec converts analog audio signals from a microphone into digital signals for transmission. It then converts the digital signals back to analog for playing. The raw encoded form of audio and video data is often called essence, to distinguish it from the metadata information that together make up the information content of the stream and any "wrapper" data that is then added to aid access to or improve the robustness of the stream. Most codecs are lossy, in order to get a reasonably small file size. There are lossless codecs as well, but for most purposes the almost imperceptible increase in quality is not worth the considerable increase in data size. The main exception is if the data will undergo more processing in the future, in which case the repeated lossy encoding would damage the eventual quality too much. Many multimedia data streams need to contain both audio and video data, and often some form of metadata that permits synchronization of the audio and video. Each of these three streams may be handled by different programs, processes, or hardware; but for the multimedia data stream to be useful in stored or transmitted form, they must be encapsulated together in a container format. -
Single Product Page
Wireless Portable Karaoke Speaker with Disco Dome Light NDS-1208 Features Specifications Drivers: 1.5'' tweeter + 12'' subwoofer Number of Speakers: 1 tweeter + 1 subwoofer Domed Multicolor LED disco room light + Woofer with Disco Light and Dual Side Input Sources: Karaoke 6.3 mm MIC, 3.5 mm AUX Bar Flashing Lights Tuners: FM Peak Music Power Output (PMPO): 3,000W Inputs: Karaoke 6.3 mm MIC, 3.5 mm AUX Audio Format Support: MP3 5 Control Levels including Master Volume, Treble, Bass, Echo, MIC Vol. Removable Memory Support: USB / Micro SD Card Stream music wirelessly from Bluetooth® devices Wireless Source: Bluetooth® Built-in MP3 player supports USB and MicroSD memory cards Peak Music Power Output (PMPO): 3000 W FM radio tuner LED display Subwoofer weight: 100 oz. Easy-to-use telescoping handle and trolley wheels Subwoofer driver size: 12.0 in Power: Built-in Rechargeable battery (12V, 4.5A), AC power adapter Speaker Driver Size: 1.5 in Accessories included: 1 pc. Corded microphone, remote control, AC power adapter, AUX cable Light effects: Woofer with Disco Light, Top Dome and 2x side Flashing Lights Level controls: Master Volume, Treble, Bass, Echo, MIC Power Source: AC power cord with rechargeable battery Product Details Power Adapter 1 In: 100 - 240VAC, 50/60 Hz Battery Type: Built-in rechargeable Li-ion Model Battery capacity: 4500 mAh (3 hrs. at Max Vol.) NDS-1208 Unit Battery, voltage: 12V - 4.5A Dimensions (in): 15 x 11.91 x 27.5 [ L x W x H ] Accessories included: 1pc. Wired Mic, Remote Control, AC power cord, Weight (lbs): 26 Warranty Card, User's Manual Giftbox/Clamshell Dimensions (in): 17 x 13.8 x 29 [ L x W x H ] Weight (lbs): 30.93 Master Carton # Of Units/per: 1 Dimensions (in): 17 X 13.8 X 29 [ L x W x H ] Weight (lbs): 30.93 Loading Qty/Container 20: 232 40: 502 40HQ: 610 PRODUCT URL:https://naxa.com/product/wireless-portable-karaoke-speaker-with-disco-dome-light-3/ Features, specifications, measurements and weights may be subject to change without prior notice.. -
Configure Surround Sound on an Intel NUC Or Comptue Stick
Surround Sound Setup Guide for NUC This guide will show the recommend method to setup surround sound through bitstreaming. Bitstreaming is the process whereby the NUC sends an un-encoded digital signal to an A/V receiver, to which the receiver will decode the signal, not the NUC, and often produces better quality sound, depending on the receiver. What is Needed: AV Receiver with HDMI or TOSLINK (SPDIF), if using optical audio Surround speakers (5.1 or 7.1) 2 HDMI cables or a TOSLINK cable (a mini DisplayPort to HDMI cable can also be used from the NUC to the Receiver) HDMI display, keyboard, mouse NUC running Windows* Media Player Classic* (https://mpc-hc.org/) 1. Download and install the latest Intel® graphics drivers (https://downloadcenter.intel.com/) 2. Connect the HDMI or mini DisplayPort cable from the NUC to an HDMI input of the AV receiver. If using TOSLINK on the NUC, connect the NUC’s TOSLINK output to a TOSLINK input on the receiver. 3. Start Windows* and download and install Media Player Classic* (MPC-HC) (http://mpc-hc.org/downloads/) 4. Open MPC-HC. On the Menu bar, click View, then Options. 5. On the left side menu tree, click on Internal Filters, then click on Video Decoder (on the bottom of the screen). 6. It’s suggested that Hardware Acceleration be used, especially if 4K content is played, choose a Hardware Acceleration option, then click OK. 7. If 4K or HEVC (h.265) content is going to be played, also select, HEVC, and UHD (4K).