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A Dolby Digital Penthouse Soundhead mounted on a mid-1950s vintage Kalee model 20 projector
A Dolby Digital Penthouse Soundhead mounted on a mid-1950s vintage Kalee model 20 projector
A photo of a 35 mm film print featuring all four audio formats (or quad track) - from left to right: Sony Dynamic Digital Sound (SDDS) (blue area to t
A photo of a 35 mm film print featuring all four audio formats (or quad track) - from left to right: Sony Dynamic Digital Sound (SDDS) (blue area to the left of the sprocket holes), Dolby Digital (grey area between the sprocket holes labelled with the Dolby Double-D logo in the middle), analog optical sound (the two white lines to the right of the sprocket holes), and the DTS time code (the dashed line to the far right)
A Dolby home theater badge on a laptop computer
A Dolby home theater badge on a laptop computer
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MP3, an example of a lossy file format compared to WAV.
MP3, an example of a lossy file format compared to WAV.
Comparison of spectrograms of audio in an uncompressed format and several lossy formats. The lossy spectrograms show bandlimiting of higher frequencie
Comparison of spectrograms of audio in an uncompressed format and several lossy formats. The lossy spectrograms show bandlimiting of higher frequencies, a common technique associated with lossy audio compression.
Solidyne 922: The world's first commercial audio bit compression sound card for PC, 1990
Solidyne 922: The world's first commercial audio bit compression sound card for PC, 1990