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2. 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 . Acoustic analog recording is achieved by a ...

3. Portable audio player - Wikipedia

   en.wikipedia.org/wiki/Portable_audio_player

   A personal mono device as science fiction (Albert Robida, 1894) A portable audio player is a personal mobile device that allows the user to listen to recorded audio while mobile. Sometimes a distinction is made between a portable player, battery-powered and with one or more small loudspeakers, and a personal player, listened to with earphones .

4. Portable media player - Wikipedia

   en.wikipedia.org/wiki/Portable_media_player

   A larger sized, hard disk memory type PMP: the Archos 605 (2000s) A small DAP: the SanDisk Clip Jam (2010s) A portable media player ( PMP) or digital audio player ( DAP) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files.

5. Walkman - Wikipedia

   en.wikipedia.org/wiki/Walkman

   July 1, 1979 [1] – present. Units sold. 385 million (all editions, as of March 31, 2009) [2] Related. List of Sony Walkman products. Walkman ( Japanese: ウォークマン, Hepburn: U~ōkuman), is a brand of portable audio players manufactured and marketed by Japanese company Sony since 1979.

6. Timeline of audio formats - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_audio_formats

   Timeline of audio formats. An audio format is a medium for sound recording and reproduction. The term is applied to both the physical recording media and the recording formats of the audio content —in computer science it is often limited to the audio file format, but its wider use usually refers to the physical method used to store the data.

7. History of sound recording - Wikipedia

   en.wikipedia.org/wiki/History_of_sound_recording

   Many pioneering attempts to record and reproduce sound were made during the latter half of the 19th century – notably Édouard-Léon Scott de Martinville 's phonautograph of 1857 – and these efforts culminated in the invention of the phonograph by Thomas Edison in 1877. Digital recording emerged in the late 20th century and has since ...