Acoustic enhancementwikipedia
Acoustic enhancement is a subtle type of sound reinforcement system used to augment direct, reflected, or reverberant sound.
acoustic enhancement

VRAS

Feedback acoustic enhancement systems include Meyer Constellation (formerly VRAS) (Variable Room Acoustics System) which uses "...different algorithms based on microphones placed around the room."
The Variable Room Acoustics System is an acoustic enhancement system for controlling room acoustics electronically.

Sound reinforcement system

sound reinforcement systemsound systemsound reinforcement
Acoustic enhancement is a subtle type of sound reinforcement system used to augment direct, reflected, or reverberant sound.
A subtle type of sound reinforcement called acoustic enhancement is used in some concert halls where classical music such as symphonies and opera is performed.

Opera

operaopera singeroperas
These systems are often associated with acoustic sound sources like a chamber orchestra, symphony orchestra, or opera, but have also found acceptance in a variety of applications and venues that include rehearsal rooms, recording facilities conference rooms, sound stages, sports arenas, and outdoor venues.
A subtle type of sound electronic reinforcement called acoustic enhancement is used in some modern concert halls and theatres where operas are performed.

Double bass

bassdouble bassupright bass
While amplification is rarely used in classical music, in some cases where a bass soloist performs a concerto with a full orchestra, subtle amplification called acoustic enhancement may be used.

Orchestral enhancement

pre-recorded music
Since the 1980s, some opera companies have been experimenting with acoustic enhancement, a subtle type of sound reinforcement system.

Money note

To ease the pressure on classical vocalists' voices, major opera halls of the 2000s are increasingly using electronic acoustic enhancement, a subtle type of sound reinforcement system.

Opera house

opera houseopera houseshouse
Since the 1990s, however, some opera houses have begun using a subtle form of sound reinforcement called acoustic enhancement (see below).

Orchestra

orchestrasymphony orchestraorchestral
These systems are often associated with acoustic sound sources like a chamber orchestra, symphony orchestra, or opera, but have also found acceptance in a variety of applications and venues that include rehearsal rooms, recording facilities conference rooms, sound stages, sports arenas, and outdoor venues.

Sound stage

sound stagesoundstagesound stages
These systems are often associated with acoustic sound sources like a chamber orchestra, symphony orchestra, or opera, but have also found acceptance in a variety of applications and venues that include rehearsal rooms, recording facilities conference rooms, sound stages, sports arenas, and outdoor venues.

Arena

arenaindoor arenaindoor sporting arena
These systems are often associated with acoustic sound sources like a chamber orchestra, symphony orchestra, or opera, but have also found acceptance in a variety of applications and venues that include rehearsal rooms, recording facilities conference rooms, sound stages, sports arenas, and outdoor venues.

Microphone

microphonemicrophonescondenser microphone
Acoustic enhancement systems use microphones, amplifiers, and loudspeakers interconnected with some form of processing.

Loudspeaker

loudspeakerspeakerloudspeakers
Acoustic enhancement systems use microphones, amplifiers, and loudspeakers interconnected with some form of processing.

Vienna Festival

Wiener FestwochenViennaVienna Festival
At the Vienna Festival in May, 1995, a LARES system was used outdoors to augment the Vienna Philharmonic's performance of Beethoven's Symphony No. 9 conducted by Zubin Mehta.

LARES

At the Vienna Festival in May, 1995, a LARES system was used outdoors to augment the Vienna Philharmonic's performance of Beethoven's Symphony No. 9 conducted by Zubin Mehta.

Tosca

CavaradossiScarpiaTOSCA
Instead, most opera houses use the sound reinforcement system for subtle boosting of offstage voices, onstage dialogue, and sound effects (e.g., church bells in Tosca or thunder in Wagnerian operas).

Michael Kennedy (music critic)

Michael KennedyKennedy, MichaelGeorge Michael Sinclair Kennedy
In a review of the State Opera of South Australia's performance of Wagners' Ring cycle at the Adelaide Festival Center Theatre, Michael Kennedy of The Sunday Telegraph, London, wrote: “The balance between the orchestra and the voices has been ideal.” The live recording of "Wagner: Die Walküre", the world's first 6 channel SACD "blitzed the 2005 Helpmann Awards, winning ten of its eleven nominations and earning critical accolades."

Ahmanson Theatre

Ahmanson TheatreAhmansonLos Angeles
The Ahmanson Theatre in Los Angeles, the Royal National Theatre in London, and the Vivian Beaumont Theater in New York City use the SIAP system.

Royal National Theatre

National TheatreThe National TheatreNational Theatre Company
The Ahmanson Theatre in Los Angeles, the Royal National Theatre in London, and the Vivian Beaumont Theater in New York City use the SIAP system.

Vivian Beaumont Theater

Lincoln Center TheaterLincoln Center TheatreMitzi E. Newhouse Theater
The Ahmanson Theatre in Los Angeles, the Royal National Theatre in London, and the Vivian Beaumont Theater in New York City use the SIAP system.