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The first device to visually record sound waves onto paper; however, it could not play back the sound.

Thomas Edison's invention that was the first to both record and reproduce sound using a tinfoil-coated cylinder and a stylus.

An improved version of the phonograph that used wax-coated cardboard cylinders and a floating stylus.

Emile Berliner's invention that used flat discs instead of cylinders, making mass production of recordings possible.

A method of audio recording in which sound is converted into electrical signals that magnetize a sensitive tape.

Introduction of multitrack recording techniques by musician and inventor Les Paul, enhancing recording possibilities.

Commercial introduction of two-channel stereo records, significantly improving the listening experience.

The shift from analog to digital recording, allowing for clearer sound quality and easier editing.

Introduction of the CD by Philips and Sony, providing a digital optical disc data storage format.

The development of the MP3 audio file format allowed for compressed digital audio without excessively reducing sound quality.

The release of the first digital audio workstation (DAW) to feature a non-linear editing system and multitrack recording.

Introduction of 5.1 surround sound in home cinema and DVDs, providing a multi-channel audio experience.

Development of Auto-Tune by Antares Audio Technologies, allowing for real-time pitch correction in music recordings.

Launch of the iTunes Store by Apple, revolutionizing the music industry by popularizing legal digital music downloads.

Launch of SoundCloud, providing a platform for artists to share and distribute their music online.

The Free Lossless Audio Codec (FLAC) enabled compression of audio without any loss in quality, important for archiving.

Introduction of digital radio broadcasting, offering listeners higher audio quality and more radio channels.

The release of Bluetooth technology allowed for the wireless transmission of audio between devices.

The rise of podcasting provided a new digital medium for audio storytelling and journalism.