Wednesday, 24 October 2012 Written by Tim Goodyer
Algorithms to Measure Audio Programme Loudness and True-Peak Audio Level
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Tuesday, 13 March 2012 Written by Tim Goodyer
Monday, 05 November 2012 Written by Tim Goodyer
Building commercial and technical support for its growing base and realisation of our expansion plans, Netherlands-based loudspeaker manufacturing specialist Alcons Audio is invinting applications for the following positions:
Audio DSP developer
Sales Support Engineer, Germany
More information and application details are available from Alcons Audio.
Monday, 08 April 2013 Written by Tim Goodyer
Calrec Networking Primer
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Friday, 24 October 2014 Written by Tim Goodyer
Sound Devices has released Firmware 2.10 software for its 970 audio rack-mounted and PIX 250i, PIX 260i and PIX 270i video rack-mounted recorders.
New features and upgrades include enhanced metadata functionality, sound report creation and improved file/folder formats. In addition, Sound Devices now offers a Release Candidate Screening Program, which gives existing users of its rack-mounted recorders a preview of features and changes under development in the firmware.
Firmware 2.10 features a new Metadata screen that allows users recording audio to access and edit the Scene, Notes, Take and Circle status of Previous, Current and Next takes. It also provides the same metadata editing functionality from PIXNet, the Web browser interface. Additionally, the PIXNet clips tab now display information about recordings, including start time code, fps, user-bits, duration, codec and audio format.
With regard to reel folder formats, in previous iterations of the firmware, a Custom option enabled users to edit reel folder names with any alphanumeric value, whereas the 2.10 firmware offers a second Daily option. If set to Daily, new reel folders will automatically be named with the current system date in the YYMMDD format. These daily reel folders, which are containers for the recordings, are helpful in organising deliverables for projects that span multiple days. This latest firmware also features a new Phrase List Manager, which lets end users create a list of commonly used phrases and then use them to quickly edit the Notes field of recorded WAV files. Users can also now enter notes from either the File list or the new Metadata screen, for the next recording.
For those devices operating in Audio Only Mono mode, it is now possible to have the system append the actual audio track name to the end of the file name. While recording, track names can now be edited from the audio screen and from PIXNet. This assists those in postproduction in determining which audio file is associated with which member of the cast, a feature that is particularly useful in high-track-count reality shows. In addition, the new Sound Reports feature creates CSV files based on WAV-file metadata.
The Release Candidate Screening Program provides the company with direct customer input on the usability of its updates, ensuring the stability of firmware updates in real-world applications. Initially, the programme will target the Video Devices and Sound Devices rackmount products, with the company planning to expand it to other product lines over time.
‘The goal of our new screening program is to work together with end-users to identify and resolve any potential stability issues and get feedback on product performance in real-life workflows, so the best possible firmware makes it into upcoming official releases,’ says Dan Desjardins, Manager of Software Development & Quality Assurance ‘Sound Devices enjoys a highly regarded, open-door relationship with its customers worldwide, and this programme promises to expand on that bond.’
Each Release Candidate will come with a pre-determined expiration date and limited technical support. Firmware 2.10 is available as a free download for all existing rack-mount products.
Monday, 16 February 2015 Written by Tim Goodyer
Apex has announced an ‘all-in-one’ conference room control system, Liviau R, offering full control over presentations and complete room control – including lighting, video, audio and other automated services.
Liviau’s 10.1-inch touchscreen interface displays only the information required during meetings and presentations. The menu places all meeting/presentation funtions under fingertip control. This can also be mirrored to an external device, allowing control from anywhere in the room.
Liviau supports wireless presentations from a laptop, tablet or smartphone using the device’s Airplay, Chromecast or Miracast technology. Content that is regularly used may be stored in Liviau R’s internal memory for ready accessibility when required. A built-in web browser allows access to information stored on other servers, or for quick searches and sharing of information. Meetings can also be recorded and archived for later consultation.
Another feature of Liviau R is its high definition audio capabilities. The device offers a built-in audio mixer that incorporates a DSP processor with multiple EQ and limiting facilities and an integrated two-channel 50W amplifier. Earphones, MP3 players and wireless headphones may connected via Bluetooth and the internal music player or internet radio offer background music.
In terms of control, Liviau R offers simple control of audio and lighting levels at all times via two faders situated at the left and right of the touchscreen. Extensive automation features allow for events such as closing blinds, retracting screens to be triggered on demand. Conventional room lights are easily controlled and LED lighting colour can be selected via a colour wheel.
Housed in a robust streamlined aluminium casing, Liviau R may be desk- or wall-mounted. It offers an integrated solution to all A/V conferencing at under €3,000.
Thursday, 02 October 2014 Written by Tim Goodyer
Tascam has announced the DR-60D MkII four-track recorder for video production.
Designed to be mounted to a camera, the updated recorder is equipped with new microphone preamps with up to 64dB of gain, and its two XLR mic inputs and two stereo inputs can be recorded individually. A Dual Recording mode captures an additional safety track.
The HDDA mic preamplifiers (High Definition Discrete Architecture) employ discrete circuitry and premium parts, and achieve a high EIN (-120dBu) using Cirrus Logic AD converters. It can record up to four tracks simultaneously, allowing multiple microphones to be used while filming. Inputs 1/L & 2/R can be selected for mono or stereo link operation.
Three sets of stereo outputs are provided. A Camera Out sends a reference track recording to the camera. The Line Out can feed a mixer or recorder. A Headphone Out is available for direct monitoring. Each of these outputs has its own level control, and the Camera Out can be attenuated to microphone level without the need for an attenuating cable.
The DR-60D MkII has an internal digital mixer fowith pan and level control. It is also equipped with a limiter or high-pass filter (40/80/120Hz), and set individual channel delay.
A variety of recording modes are supported:
· Mono/Dual Mono mode for single source microphones.
The Channel 3/4 input connector supports a high-level maximum input – up to +10dBV. Many microphones designed for use with video cameras have a high-level output and a 3.5mm output connector. Plug-in power is also available for microphones.
The keys of the unit are designed for quiet operation to eliminate handling noise and the Slate feature is designed to mark tracks while in production.
Monday, 20 July 2015 Written by Tim Goodyer
Monitoring specialist Bel Digital has announced the world’s first Dante audio monitor, the BM-A1-64Dante for the broadcast, live sound, recording and fixed installation markets.
Housed in a rugged 1U-high rack chassis, the BM-A1-64Dante features a redundant power supply as standard and offers full audio redundancy over a Gigabit Ethernet network. Designed to provide a simple and effective way of monitoring audio in Dante networks, the unit provides a visual indication of signal strength on all 64 selected Dante channels. Each individual channel can also be audibly monitored, or the operator can combine up to 16 channels to provide a unique stereo monitor mix.
An onboard matrix enables access to 512 audio sources using Dante Controller software, with the audio present at the front panel mounted speakers also available via balanced analogue (on two XLRs) and AES/EBU (1on a single XLR) outputs.
In addition, Audinate has announced that Dante is to be compliant with AES67, which specifies interoperability with other compliant systems, such as Ravenna, QSC’s Q-Lan and Telos Systems’ Livewire.
Tuesday, 02 April 2013 Written by Tim Goodyer
Power and Grounding for Audio and Video Systems: A White Paper for the Real World - International Edition
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Friday, 12 September 2014 Written by Tim Goodyer
Clear-Com has released the Linq series of comms interfaces, enabling connection of two-wire partyline with call signalling and four-wire audio over LAN, WAN or Internet IP infrastructures.
Based on Clear-Com’s IV-Core technology, Linq is available in two-wire (Linq-2W2) or four-wire (Linq-4W2) options. The Linq-2W2 is both Clear-Com and RTS TW compatible. The Linq-4W2 can interconnect with devices, such as analogue ports of any matrix intercom system, analog telephone circuits, two-way radio gateways and audio consoles. A maximum of six Linq IP interfaces can be linked together in any 2-wire or 4-wire combination.
Linq uses the Opus high-quality audio codec, allowing bitrate, bandwidth and delay to be changed quickly without introducing distortion or discontinuity in the audio. As a low audio latency communication link, Linq can be used for natural intercom conversation, networked music performances and for audio signals that are transported via different facilities (transmission sync).
The creation of virtual partylines within a linked group is an exclusive feature. Channels from any of the six devices in the network can be linked to create common virtual partylines. At least two channels must be associated to each other. Linq uses a touch-friendly web-based user interface to configure, control and monitor any device within a linked group.
‘Linq is a simple yet significant development that enables users to expand their remote communications quickly and easily,’ says Clear-Com Product Manager, Stephen Sandford.
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