What is Pure Audio

About Hi-Res Surround Sound

Undoubtedly in general, the audition through the speakers and especially through the headphones at home, in the car, on the street or even in the club, is stereophonic. The appearance of stereo recordings was, with years before, as the appearance of color television. The same happened with Audio CD. You probably remember the badly recorded audio compact cassettes or even the original ones played on a poor quality cassette player. Then the new dimensions of sound and music have been rediscovered.

The vinyl, despite its relative exceptional quality, remains a quite retro music environment. Recordings made on professional studio reel tape recorders, which are still used today to remix some famous albums along with the quadrophonic experiments of the ’70s, have been an attempt to bring the space sensation into the musical sphere. But the true evolution has been through 5.1 surround sound technologies proposed by Dolby Digital and DTS Surround, and lately through lossless Dolby TrueHD updated with Atmos extension, DTS-HD Master Audio with DTS:X and three layers immersive spatial field of Auro-3D.

You don’t need golden ears to hear the difference, you just need an open mind. When the Audio CD standard was established 40 years ago, we thought that we’d cracked it, but science and technology have moved on. Back then, we were watching VHS, now the 8K video is on the horizon! We knew that CD quality would capture the frequency range of human hearing, but we were oblivious to our hearings true potential. Recent studies have revealed our sensitivity to timing information in audio, this makes sense when you think of how we can pinpoint an audio source with our eyes closed.

For sure the surround sound combined with the lossless high-resolution audition introduces you into a world of perfection, it reveals a realistic acoustic experience that will change your way of perceiving music. If you have a well-equipped high quality Home Theater system, acoustically calibrated, this is your chance to be part of the future of music and to hear the sound of the technological revolution, to listen my music as I have imagined, to close your eyes and leave you totally immersed into the PURE AUDIO.

The happiness of the future is hidden in your present day.
The tear-drop on the cheek of love in space and time.

Love of Future Remastered

"Impressive production quality and intelligent atmospherics, one of the most exciting high-tech
affair that perfectly captures the diverse and cultivated pure audio in hi-res surround sound."

All tracks composed and mastered by Răzvan Horia Cristea. Copyright Ⓒ & Ⓟ 2016 - . All rights reserved. Remastered in 2018. Download from SoundCloud for free in lossless 96kHz 24bit 5.1 Surround FLAC format.

Hi-Res Audio Discs

Lossless 96kHz 24bit 5.1 Surround

5.1 Blu-ray ISO image

Love of Future Remastered

FREE DOWNLOAD
  • Blu-ray BD5 format specification
5.1 AVCHD ISO image

Love of Future Remastered

FREE DOWNLOAD
  • AVCHD 2.0 format specification
5.1 DVD AV ISO image

Love of Future Remastered

FREE DOWNLOAD
  • DVD-Audio format specification

You can mount the ISO image on any computer and use it like a virtual driver or burn on DVD±R/RW (mini BD-R/RE for Blu-ray images) and play the disc on the home theatre system with 5.1 surround speakers without display or TV set. ISO images contain minimal video stream which can be ignored. Blu-ray discs are compliant with BD5 and AVCHD specification and can be playing on compatible Blu-ray or Universal player and Sony Playstation 3. DVD Audio disc can be played on compatible DVD Audio/Video, Blu-ray or Universal player with Dolby Pro Logic II processor for stereo PCM stream.

There are many secrets in us, in the depths of our souls…
The music is a deception that creates real emotions.

Time Warp Remastered

"A very intimate but mature album, is a must-have of forward-thinking electronica.
Simple and hypnotic. A spectacular overview of past, present and future from beginning to end."

All tracks composed and mastered by Răzvan Horia Cristea. Copyright Ⓒ & Ⓟ 2014 - . All rights reserved. Remastered in 2018. Download from SoundCloud for free in lossless 96kHz 24bit 5.1 Surround FLAC format.

Hi-Res Audio Discs

Lossless 96kHz 24bit 5.1 Surround

5.1 Blu-ray ISO image

Time Warp Remastered

FREE DOWNLOAD
  • Blu-ray BD5 format specification
5.1 AVCHD ISO image

Time Warp Remastered

FREE DOWNLOAD
  • AVCHD 2.0 format specification
5.1 DVD AV ISO image

Time Warp Remastered

FREE DOWNLOAD
  • DVD-Audio format specification

You can mount the ISO image on any computer and use it like a virtual driver or burn on DVD±R/RW (mini BD-R/RE for Blu-ray images) and play the disc on the home theatre system with 5.1 surround speakers without display or TV set. ISO images contain minimal video stream which can be ignored. Blu-ray discs are compliant with BD5 and AVCHD specification and can be playing on compatible Blu-ray or Universal player and Sony Playstation 3. DVD Audio disc can be played on compatible DVD Audio/Video, Blu-ray or Universal player with Dolby Pro Logic II processor for stereo PCM stream.

The sweetest of sounds is that voice of the being we love.
You can have it all. Just not all at once.

Absolute Love Remastered

"Seductive, sexy and full of originality, brilliant stuff. This will leave a lasting impression on anyone
with a penchant for emotions. Extremely clever, you really can't afford to miss out."

All tracks composed and mastered by Răzvan Horia Cristea. Copyright Ⓒ & Ⓟ 2013 - . All rights reserved. Remastered in 2018. Download from SoundCloud for free in lossless 96kHz 24bit 5.1 Surround FLAC format.

Hi-Res Audio Discs

Lossless 96kHz 24bit 5.1 Surround

5.1 Blu-ray ISO image

Absolute Love Remastered

FREE DOWNLOAD
  • Blu-ray BD5 format specification
5.1 AVCHD ISO image

Absolute Love Remastered

FREE DOWNLOAD
  • AVCHD 2.0 format specification
5.1 DVD AV ISO image

Absolute Love Remastered

FREE DOWNLOAD
  • DVD-Audio format specification

You can mount the ISO image on any computer and use it like a virtual driver or burn on DVD±R/RW (mini BD-R/RE for Blu-ray images) and play the disc on the home theatre system with 5.1 surround speakers without display or TV set. ISO images contain minimal video stream which can be ignored. Blu-ray discs are compliant with BD5 and AVCHD specification and can be playing on compatible Blu-ray or Universal player and Sony Playstation 3. DVD Audio disc can be played on compatible DVD Audio/Video, Blu-ray or Universal player with Dolby Pro Logic II processor for stereo PCM stream.

Original Albums

"Mastered for iTunes" from Hi-Res Digital Master

The concept of what sounds "good" can be very subjective. Lossy compression is a compromise between sound quality and the file size limitations of digital music distribution platforms. Apple's Advanced Audio Coding methodology is a two-step process. The first step in the encoding path is to use state-of-the-art, mastering-quality Sample Rate Conversion (SRC) to resample the 24bit master file from 192kHz or 96kHz to a sample rate of 44.1kHz, but outputs it in a 32bit floating file. Because this SRC outputs a 32bit floating file, it can preserve values that might otherwise fall outside of the permitted amplitude range. Using a 32bit floating file prevents from happening any aliasing or clipping that could otherwise occur in SRC.

Step two is to take that 32bit floating file and encode it into 256 kbps AAC format without any additional dithering. This means that the encoder uses every bit of resolution available, preserving almost all dynamic range of a 24bit source file and eliminating the need for dithering. The advantage of this is twofold. Not only does it obviate the need of adding dither noise, it also lets the encoders work more efficiently as they don’t need to waste resources encoding this unwanted and unnecessary noise. By using this highly accurate file directly from SRC and taking advantage of its clean signal, the encoder can deliver the final product nearly as the artist intended it to sound. However lossy is not lossless. These original albums are no more available on iTunes or any other platform due to lack of Hi-Res quality distribution, despite high fidelity mastering conversion, just on Audiomack for the audition.

In addition to use of the latest Hi-Res Audio like Dolby TrueHD and DTS-HD Master Audio and now the classic DVD-Audio with Meridian Lossless Packing which is mathematical compression basis for Dolby TrueHD, I also experienced other formats in the past like MP3 5.1 Surround, MP3 SX (Stereo eXtended), MP3 HD (Audio CD quality), Dolby Surround Audio CD, Dolby Digital 5.1 CD, DTS Surround 5.1 CD and recently 2.8224MHz 1bit "DSD Disc Format" used for Super Audio CD mastering and professional recorders from Korg, Tascam and others. Such DVD±R/RW disc can be stereo played back native only on certain Sony VAIO notebooks, Playstation 3, some SACD and Universal player or through ASIO software plugin. Download ISO image from here.

All albums composed and mastered by Răzvan Horia Cristea. Copyright Ⓒ & Ⓟ 1997 - . All rights reserved. "Trancemix" produced on Impulse Tracker 2.14 and Modplug Tracker (OpenMPT), "Recursive deception" and "Secrets" on Apple Logic Pro 9, "Absolute Love" on Mixcraft Studio 7 remastered on Mixcraft Pro Studio 8, "Time Warp" and "Love of Future" on Logic Pro X. Dolby Surround and 5.1 mastering on Adobe Audition with following ITU-R recommendations for High Resolution, Advanced Dynamic Processing and Digitally Mastered such as: BS.1771-1/2012, BS.775-3/2012, BS.1423/1999, BS.1284-2/2019, BS.1909/2012, BS.2051-2/2018.

What is not Hi-Res Audio

Studio Master Quality Audio

The music industry is struggling to define High-Resolution Audio or "HRA". In doing so, most have focused on the delivery formats - analog vs. digital, 24bits vs. 16bits, PCM vs. DSD, uncompressed vs. compressed. But, High-Resolution Audio is much more than the delivery format. Delivery formats may limit resolution, but they do not define the resolution delivered to your ears. To understand this, it may be easier to define what is NOT High-Resolution Audio.

A 24bit recording played through the headphones, native 352.8kHz DXD played through laptop speakers and high-quality SACD playing through a typical car stereo are not HRA. These examples are limited by the quality of the playback system. It is nearly impossible to build a low-power portable device that achieves much more than 16bit performance. 24bit audio provides little value when played through low-power, low-voltage portable devices. Likewise, the bandwidth provided by a 192kHz sample rate is of no use when played through the speakers on a laptop computer. The 44.1kHz CD sample rate is more than sufficient when the sound will be delivered by the laptop speakers or headphones.

A 768kHz up-sampled version of CD, a "restored" version of an MP3 and hi-res digital copy of vinyl or an analog reel tape are not HRA. These examples are limited by the quality of the source. A 768kHz up-sampled conversion of a CD will never be better than the original CD. MP3 processing it cannot recover the details that were lost when compression was applied. HRA is all about details. Vinyl records are not hi-res recordings having very specific performance limitations. They contain noise levels that are much higher than a CD, limited stereo separation, and impose constraints of the audio spectrum. Studio analog tape may exceed the frequency response of the CD, but without professional dynamic processing, it cannot achieve the noise performance of the 16bit PCM encoding used on the CD.

Today we have 192kHz and 96kHz 24bit digital releases of classics and we rediscovered our favorite tunes when we purchased albums and upgraded our stereo systems. With the improved audition components, we discovered details that we had never heard while listening to the same song hundreds of times on a cheap radio. These digital releases may or may not fully meet the definition of High-Resolution Audio, but they capture more detail than the original analog releases.