Jnger Audio delivers audio quality for ?e Voice of China?

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J nger Audio delivers audio quality for The Voice of China --

Thu, 07 Jan 2016 16:36

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The audio production team behind the The Voice of China, has been using J nger Audio loudness control and audio processing equipment to ensure the quality of broadcasts transmitted in 5.1 surround sound.

Chief audio engineer for the shows 5.1 surround sound production was Lou Wei from CTPC Studio, a division of CCTV. Working on behalf of Dolby China and the production company responsible for The Voice of China, Wei has been looking after 5.1 surround sound and broadcasting since the first series.

In China, the format most widely used for surround sound production is Dolby E. However, Dolby Labs decision to stop making hardware products to monitor this format left a gap in the market that J nger Audio with the backing of Dolby - was only too happy to fill. Its D*AP8 Codec Edition units now incorporate a Dolby decoder as standard, along with a choice of optional encoders, so that broadcast engineers in post-production, DVD and DTV facilities can check the quality of Dolby E, Dolby Digital or Dolby Digital-encoded audio prior to transmission.

Zhang Yan, technical director of Dolby International Services (Beijing) Co., Ltd, says: After a long period of evaluation and testing, we discovered that the features and specifications of J nger Audios D*AP8 processors, in particular the D*AP8 MAP Monitoring Processors, matched Dolby E productions very well. They support HDSDI embedding and de-embedding, as well as Dolby codecs, which is important because most of video equipment that works with Dolby E also supports HD-SDI, rather than the AES interface.

Yan adds that J nger Audio s products provided various interface options, routing and features. Also, thanks to the ability to customise settings, one J nger Audio processor can work for many different requirements, he says.

For The Voice of China, Yan and Wei specified a selection of J nger Audio equipment, including two D*AP8 TAP EDITION audio processors, which were installed in the transmission chain and used for Dolby E encoding. Also chosen were two D*AP8 MAP EDITION audio devices incorporating a comprehensive Dolby toolkit including metadata emulation, along with full loudness metering and logging capabilities. These multichannel monitoring units were installed in the programme chain and used for Dolby decoding and metadata emulation. A third D*AP8 MAP was used for Dolby metadata emulation during the music pre-mix sessions, and a 2-channel D*AP4 VAP Voice Audio Processor was used for all vocal balancing and processing, including commentary from the judges and hosts and the singers speeches.

Although the finale of The Voice of China is broadcast live from the Beijing Olympic Centre (The Birds Nest), all earlier episodes are pre-recorded and post produced by Zhejiang TVs production staff in conjunction with Wei and his team. A J nger Audio Level Magic Plug-In was used at this stage to guarantee overall audio quality and ensure consistent loudness values across the entire 5.1 audio chain.

Commenting on the choice of J nger Audio technology, Wei says: The leveller feature on the Level Magic Plug In is very useful. It processes loudness and dynamic range for vocal signals to ensure the quality of the live shows, while still keeping the workflow moving at a fast pace.

J nger Audio is a manufactures that supports all Dolby codec hardware solutions, along with specific voice processing and auto up/down mix features, Wu Xiao Dong, director of the Audio Department at the Zhejiang TV Group Production Centre says. The real benefit these units bring to our productions is the ability to tackle Dolby E encoding, Dolby metadata emulation, loudness and vocal voice processing.

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