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HyperAudio – Preparing Audio for Compression and Streaming while Optimizing the User Experience

One of the overlooked aspects of streaming is the impact compression has on analog audio signals, especially when delivered to 2 channel devices such as internal Television Speakers.    With the release of HyperAudio processing by 4K Studios,  UltraFlix users will experience a best in class audio experience combined with award winning video streaming technology.

HyperAudio processing is a step during the mastering process when files are being encoded with compressed audio.  The process includes analysis of the entire soundtrack prior to processing allowing for the compression and encoding to take into account the entire movie.  Several of the issues with standard encoding and compression methods include an imbalance between scenes of volume levels, clipping of peaks in audio, and loss of overall warmth of the audio.

One of the issues during audio encoding and compression is that you can end up with a wide variation of contrast during quiet portions as compared to loud portions of the soundtrack.  Much like two pass video encoding techniques, by processing audio in a two pass method, the encoding and compression can take into account the variations in the audio track and make setting changes per scene accordingly.

Another issue that plagues digital audio encoding and compression is clipped peaks can often appear, distorting audio, particularly during loud scenes making it even more noticeable.  The problem by compressing with a single pass, or using a single band limiter you will often find that powerful highs will dull the sounds of the low frequencies, or powerful low frequencies will clip the high notes.  With multiband processing, and compressing each range of audio separately, then limiting them combined will provide for the maximum clarity even in loud scenes.  By processing the audio through a multi-band processor, HyperAudio ensures a much clearer and cleaner audio experience.

During processing HyperAudio implements the use of several filters using proprietary algorithms which allow for the optimized compression settings to ensure less distortion, better quality, consistent volume equal clarity and dynamic range between scenes.

 


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More Titles with Updated Surround Sound

Category : Uncategorized

several library files with updated surround sound

  • Jack Reacher
  • Rocky
  • Escape from Tomorrow
  • Red Obsession
  • Star Trek The Motion Picture
  • The Italian Job (2003)
  • Someone Marry Barry
  • Road Hard
  • Burt’s Buzz
  • Babel

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One Eyed Jacks

 

We are big fans of Criterion.  They have released some wonderful Blu-rays of classic movies.  The Criterion release of One Eyed Jacks was a great release and restoration came from the best possible sources.  Criterion has set the bar for film restoration DVD releases.

Our remastering of One Eyed Jacks started with an older copy and we didn’t have the luxury of the separate audio tracks.

We use the Lasergraphics Director to scan our film stock.  We scan masters in 16 bit color.  Our tools include After Effects, Neat, Red Giant, Infognition, Dark Energy, Davinci Resolve, Nugen Halo, Audition, and Lustre.

Below are comparisons of the Criterion Remastered Blu-ray and our Remastered 15mbit/s Stream.

 


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Hello world!

Category : Uncategorized

Setting up the new site.