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  2. Monaural sound - Wikipedia

    en.wikipedia.org/wiki/Monaural_sound

    A diagram of monaural sound. Monaural sound or monophonic sound (often shortened to mono) is sound intended to be heard as if it were emanating from one position. [1] This contrasts with stereophonic sound or stereo, which uses two separate audio channels to reproduce sound from two microphones on the right and left side, which is reproduced with two separate loudspeakers to give a sense of ...

  3. Stereophonic sound - Wikipedia

    en.wikipedia.org/wiki/Stereophonic_sound

    Japanese television began multiplex (stereo) sound broadcasts in 1978, [73] and regular transmissions with stereo sound came in 1982. [74] By 1984, about 12% of the programming, or about 14 or 15 hours per station per week, made use of the multiplex technology. West Germany's second television network, ZDF, began offering stereo programs in ...

  4. Haeco-CSG - Wikipedia

    en.wikipedia.org/wiki/Haeco-CSG

    His company, Holzer Audio Engineering, developed the system in the 1960s during the years of transition from mono to stereophonic sound in popular music recording. The process was used primarily from about 1968 until 1970 but still exists on a significant number of recordings made during the time.

  5. Optical sound - Wikipedia

    en.wikipedia.org/wiki/Optical_sound

    This continued until 1976, by which time optical sound recording had been converted to the Western Electric (dubbed "Westrex") stereo variable-area system. Due to film grain and possible dust on the sound track, optical sound could be noisy or have crackling sounds, especially when projecting worn release prints.

  6. Wave field synthesis - Wikipedia

    en.wikipedia.org/wiki/Wave_field_synthesis

    Wave field synthesis (WFS) is a spatial audio rendering technique, characterized by creation of virtual acoustic environments. It produces artificial wavefronts synthesized by a large number of individually driven loudspeakers from elementary waves. Such wavefronts seem to originate from a virtual starting point, the virtual sound source.

  7. Joint encoding - Wikipedia

    en.wikipedia.org/wiki/Joint_encoding

    One example of the use of M/S stereo is in FM stereo broadcasting, where + modulates the carrier wave and modulates a subcarrier. This enables backwards compatibility with mono equipment, which will only require the mid channel. [2] Another example of M/S stereo is the stereophonic microgroove record. Lateral motions of a stylus represent the ...

  8. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    The sound waves are generated by a sound source, such as the vibrating diaphragm of a stereo speaker. The sound source creates vibrations in the surrounding medium. As the source continues to vibrate the medium, the vibrations propagate away from the source at the speed of sound, thus forming the sound wave.

  9. Sound recording and reproduction - Wikipedia

    en.wikipedia.org/wiki/Sound_recording_and...

    Sound recording and reproduction is the electrical, mechanical, electronic, or digital inscription and re-creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording .