AHI (Amiga)
Encyclopedia
AHI is a retargetable audio subsystem for AmigaOS
, MorphOS
and AROS
. It was created by Martin Blom in the mid 1990s to allow standardized operating system support for audio hardware other than just the native Amiga sound chip, for example, 16-bit sound cards.
AHI offers improved functionality not available through the AmigaOS audio device driver, such as, seamless audio playback from a user selected audio device (in applications which supported AHI), standardized functionality for audio recording and efficient software mixing routines for combining multiple sound channels thus overcoming the four channel hardware limit of the original Amiga chipset. It also incorporated a unique mode that produced 14-bit playback using the Amiga chipset by combining two 8-bit channels set at different volumes. The first official release of AHI was in 1996 . AHI became a widely supported standard for audio hardware and audio software on Amiga
systems and was officially included in later operating system releases.
The author has stated that when referring to this software the correct term is 'AHI audio system' or just 'AHI' and not 'Audio Hardware Interface'.
AmigaOS
AmigaOS is the default native operating system of the Amiga personal computer. It was developed first by Commodore International, and initially introduced in 1985 with the Amiga 1000...
, MorphOS
MorphOS
MorphOS is an Amiga-compatible computer operating system. It is a mixed proprietary and open source OS produced for the Pegasos PowerPC processor based computer, PowerUP accelerator equipped Amiga computers, and a series of Freescale development boards that use the Genesi firmware, including the...
and AROS
Aros
Aros may refer to:*Aros , a river in J. R. R. Tolkien's Middle-earth legendarium*AROS Research Operating System, a free software implementation of AmigaOS* Aros, the original Viking name of Aarhus, the second largest city in Denmark...
. It was created by Martin Blom in the mid 1990s to allow standardized operating system support for audio hardware other than just the native Amiga sound chip, for example, 16-bit sound cards.
AHI offers improved functionality not available through the AmigaOS audio device driver, such as, seamless audio playback from a user selected audio device (in applications which supported AHI), standardized functionality for audio recording and efficient software mixing routines for combining multiple sound channels thus overcoming the four channel hardware limit of the original Amiga chipset. It also incorporated a unique mode that produced 14-bit playback using the Amiga chipset by combining two 8-bit channels set at different volumes. The first official release of AHI was in 1996 . AHI became a widely supported standard for audio hardware and audio software on Amiga
Amiga
The Amiga is a family of personal computers that was sold by Commodore in the 1980s and 1990s. The first model was launched in 1985 as a high-end home computer and became popular for its graphical, audio and multi-tasking abilities...
systems and was officially included in later operating system releases.
The author has stated that when referring to this software the correct term is 'AHI audio system' or just 'AHI' and not 'Audio Hardware Interface'.