* Deimos ( Doctor Who audio ), an audio drama

* Phobos ( audio drama ), a 2007 audio drama based on Doctor Who

* In the Big Finish audio drama Pier Pressure, Evelyn Smythe mentions that although the Sixth Doctor didn't possess a sonic screwdriver, he fondly remembered it as his " door key ".

His companions Ace and Hex use the device in the Doctorless audio drama, The Veiled Leopard.

Big Finish Productions first used the Sontarans for their audio drama Heroes of Sontar-a 2011 Fifth Doctor story.

* The Sandman ( Doctor Who audio ) ( 2002 ), a 2002 audio drama

* Sweeney Todd and the String of Pearls: an Audio Melodrama in Three Despicable Acts ( 2007 ), an audio play by Yuri Rasovsky, won three 2008 Audie Awards for best audio drama, best original work and for achievement in production.

In the Seventh Doctor audio drama " Colditz ," a character was killed by being halfway inside the TARDIS when it dematerialised.

* The Doctor Who audio drama The Church and the Crown takes place during the year 1626.

* Jubilee ( audio drama ), based on the British television series Doctor Who

With the approval of his widow, Ingeborg, his voice was utilised as part of the plot of the Big Finish Productions ' 40th Anniversary Doctor Who audio drama, Zagreus, appearing as messages from the Doctor's TARDIS as it attempted to help the currently corrupted Eighth Doctor ( voiced by Paul McGann ).

Radio drama ( or audio drama, audio play, radio play, radio theater ) is a dramatized, purely acoustic performance, broadcast on radio or published on audio media, such as tape or CD.

The terms " audio drama " or " audio theatre " are sometimes used synonymously with " radio drama " with one notable distinction: audio drama or audio theatre is not intended specifically for broadcast on radio.

Beginning with Reginald Fessenden's audio demonstrations in 1906, it was also the original method used for audio radio transmissions, and remains in use today by many forms of communication —" AM " is often used to refer to the mediumwave broadcast band ( see AM radio ).

The well-known " Ranz des Vaches " ( score ; audio ) is a traditional Swiss melody often heard on the alphorn.

* 1888 – An audio recording of English composer Arthur Sullivan's " The Lost Chord ", one of the first recordings of music ever made, is played during a press conference introducing Thomas Edison's phonograph in London, England.

The PowerPC CPU on PowerUP boards is usually used as a coprocessor for heavy computations ( a powerful CPU is needed to run MAME for example, but even decoding JPEG pictures and MP3 audio was considered heavy computation at the time ).

An audio file format is a file format for storing digital audio data on a computer system.

It can be a raw bitstream, but it is usually a container format or an audio data format with defined storage layer.

It is important to distinguish between a file format and an audio codec.

A codec performs the encoding and decoding of the raw audio data while the data itself is stored in a file with a specific audio file format.

There is one major uncompressed audio format, PCM, which is usually stored in a. wav file on Windows or in a. aiff file on Mac OS.

BWF ( Broadcast Wave Format ) is a standard audio format created by the European Broadcasting Union as a successor to WAV.

This is the primary recording format used in many professional audio workstations in the television and film industry.

* act-ACT is a lossy ADPCM 8 kbit / s compressed audio format recorded by most Chinese MP3 and MP4 players with a recording function, and voice recorders

* iklax – An iKlax Media proprietary format, the iKlax format is a multi-track digital audio format allowing various actions on musical data, for instance on mixing and volumes arrangements.

* mmf-a Samsung audio format that is used in ringtones.

* mpc-Musepack or MPC ( formerly known as MPEGplus, MPEG + or MP +) is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160 – 180 kbit / s.

* ogg – a free, open source container format supporting a variety of formats, the most popular of which is the audio format Vorbis.

* raw – a raw file can contain audio in any format but is usually used with PCM audio data.

Audio signal processing, sometimes referred to as audio processing, is the intentional alteration of auditory signals, or sound, often through an audio effect or effects unit.

Stand-alone, file based, multi-track recorders from Sound Devices, This of course results in a reduction in audio quality, but a variety of techniques are used, mainly by exploiting psychoacoustics, to remove the data that has least effect on perceived quality.

CD-R recording systems available in 1990 were similar to the washing machine-sized Meridian CD Publisher, based on the two-piece rack mount Yamaha PDS audio recorder costing $ 35, 000, not including the required external ECC circuitry for data encoding, SCSI hard drive subsystem, and MS-DOS control computer.

Computer controlled music is also found in the performance pieces by the Canadian composer Udo Kasemets such as the Marce ( ntennia ) l Circus C ( ag ) elebrating Duchamp ( 1987 ), a realization of the Marcel Duchamp process piece Erratum Musical using an electric model train to collect a hopper-car of stones to be deposited on a drum wired to an Analog: Digital converter, mapping the stone impacts to a score display ( performed in Toronto by pianist Gordon Monahan during the 1987 Duchamp Centennial ), or his installations and performance works ( e. g. Spectrascapes ) based on his Geo ( sono ) scope ( 1986 ) 15x4-channel computer-controlled audio mixer.

DSP processor ICs are found in every type of modern electronic systems and products including, SDTV | HDTV sets, radios and mobile communication devices, Hi-Fi audio equipments, Dolby noise reduction algorithms, GSM mobile phones, mp3 multimedia players, camcorders and digital cameras, automobile control systems, noise cancelling headphones, digital spectrum analyzers, intelligent missile guidance, radar, GPS based cruise control systems and all kinds of image processing, video processing, audio processing and speech processing systems.

* Hex ( Doctor Who ), a character in the Big Finish Productions audio plays based on the television series Doctor Who

Due to cartridge storage limitations, the Nintendo 64 version is based on the original PC floppy version and lacks the FMV scenes and Redbook audio music introduced in the CD-ROM version, although it has new narrative introductions to the levels.

* Reel-to-reel audio tape recording, based on technology found in Germany after the war, helped musical artists such as Bing Crosby make and distribute recordings with better fidelity.

This includes the ISO Dist10 audio encoder code, which LAME and TooLAME were originally based upon.

* Musepack A format originally based on MPEG-1 Layer II audio, but now incompatible.

** Does not waste much space ( audio is saved uncompressed, but even uncompressed audio is tiny compared to the video part of DV ), but Windows applications based on the VfW API do not support it.

While not purely a hardware synth, the DS-XG sound cards based on the Yamaha YMF-7 # 4 family of audio chipsets ( including 724, 744, 754, and 764 ), including the Yamaha WaveForce 192 ( SW192XG ) as well as many from other manufacturers and even some PC motherboards with such an audio chipset, included hardware-assisted software VL physical modelling ( like a VL70m or PLG-VL, and compatible with same ) along with the Yamaha XG, wave audio, and 3D gaming sound capabilities of the chipset.

The music format was originally based exclusively on ATRAC audio data compression, but the option of linear PCM digital recording was later introduced to attain audio quality comparable to that of a compact disc.

The memory buffer concept introduced by MiniDisc was soon incorporated into portable CD players as well, and in hard drive based digital audio players.

Magnetostrictive transducers, based on magnetostriction, have been predominantly used as sonar ultrasonic sound wave radiators, but their usage has spread also to audio speaker systems.

In addition to launching audio and video services, they also led the specification of an industry-wide advanced interactive engine ( based on MHEG-5 ).

High-end commercial audio processing packages either combine the two techniques ( for example by separating the signal into sinusoid and transient waveforms ), or use other techniques based on the wavelet transform, or artificial neural network processing, producing the highest-quality time stretching.

They are usually highly structured ; automated or human supported ; based on effective face-to-face treatment ; personalized to the user ; interactive ; enhanced by graphics, animations, audio, and possibly video ; and tailored to provide follow-up and feedback.