High Fidelity Pure Audio
Digital audio medium
 HFPA Blu-ray logo | |
| Media type | Blu-ray |
|---|---|
| Encoding | Menu screen H.264/MPEG-4 AVC Audio 2.0 or 5.1 Surround Dolby TrueHD DTS-HD Master Audio LPCM[1] |
| Capacity | 25 GB (single-layer) 50 GB (dual-layer) |
| Read mechanism | 405 nm diode laser |
| Developed by | Sony Pictures Entertainment, Sony Music Entertainment, Universal Pictures, Universal Music |
High Fidelity Pure Audio, occasionally abbreviated as HFPA, is a marketing initiative, spearheaded by Sony Music Universal Music Group, for audio-only Blu-ray optical discs.[2] Launched in 2013[3] as a potential successor to the compact disc (CD), it has been compared with DVD-Audio and SACD, which had similar aims.[4][2]
HFPA is encoded as 24-bit/96 kHz or 24-bit/192 kHz linear PCM ("high-resolution audio"), optionally losslessly compressed with Dolby TrueHD or DTS-HD Master Audio.[1]
HFPA discs are compatible with existing Blu-ray players.[5]
Pure Audio Blu-ray refers to a different initiative (but with some goals in common) launched by msm-studios in Germany in 2009.[4]
As of November 2019, Deutsche Grammophon is the most prolific publisher on the format, with Beethoven 250 having three Blu-ray audio discs.
References
- ^ a b Hill, Brad. "Editorial: High Fidelity Pure Audio starting a noble but losing battle". Engadget. AOL Inc. Retrieved 4 January 2014.
- ^ a b Guttenberg, Steve. "Deja vu: Yet another high-resolution audio 'format'". CNET. CBS Interactive Inc. Retrieved 4 January 2014.
- ^ "Universal Music, Dolby & QOL Support Pure Audio Group Launch". MESA Europe. Media & Entertainment Services Alliance. Retrieved 4 January 2014.
- ^ a b "Universal Music bets on consumer longing for quality with hi-fi Pure Audio". DVD & Beyond. Globalcom Limited. Retrieved 4 January 2014.
- ^ "High Fidelity Pure Audio format brings hi-res audio to Blu-ray". 21 June 2013. Archived from the original on 22 May 2015. Retrieved 18 December 2016.
Compatibility with any existing Blu-ray player or PS3 obviously gives HFPA an advantage over previous high-definition standards such as SACD.
External links
- "Universal Music Details First 36 Blu-ray Audio Titles". Blu-ray.com. Retrieved 4 August 2014.
- "Second Wave of HFPA Blu-ray Audio Titles Announced". Blu-ray.com. Retrieved 4 August 2014.
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Physical audio recording formats
- Music box cylinder or disc (9th century)
- Mechanical cuckoo (early 17th century)
- Punched card (1881)
- Music roll (1883)
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| Grooved cylinder |
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| Sound-on-film |
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| Loose magnetic wire |
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| Magnetic wire cartridge |
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| Loose (reel-to-reel) magnetic tape |
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| Magnetic tape cartridge |
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- Soundstream (1976)
- X80/ProDigi (1980)
- DASH (1982)
- PCM adaptor (1982)
- DA-88/DTRS (1993)
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| Optical disc |
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- Mini-cassette (1967)
- U-matic (1971)
- Pioneer Artists Compact LaserDisc (1986)
- CD Video (1987)
- ADAT (1991)
- Timecode vinyl (2001)
- VinylDisc (2007)
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