when were the first CDs put on the market1963 1973 1983

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when were the first CDs put on the market1963 1973 1983

when were the first CDs put on the market1963 1973 1983
when were the first CDs put on the market
1963 1973 1983

when were the first CDs put on the market1963 1973 1983
1983,because
1976年,Sony开始与飞利浦合作进行激光视盘(LD)的商品化,这是一种直径同LP唱片一样的30cm大型光盘.同年,Sony在内部利用PCM-1数字磁带录音机的雏形在LD技术基础上制作了一张光盘,可能这也是世界上第一张“数字音频唱片”.但当时的播放效果非常差,Sony通过研究决定了数字音频光盘的开发战略,其中两项决策非常关键:不再借用视频格式,将数字音频信号直接记录在专用光盘中;引入纠错技术,改善光盘的播放质量.
1978年,与其他厂家纷纷在LP基础上开放数字音频唱片不同,飞利浦公司研制出了ALP(Audio Long Play)唱片,其直径只有11.5cm,可以轻松地放进口袋里或汽车音响中.
1977年8月开始,Sony与飞利浦开始共同开发全新的产品.随后,确定了16Bit量化、44.1kHz采样和12cm直径的规格,后一个规格的确定非常有趣,时任Sony公司副社长的大贺典雄是音乐家,他认为“如果一张唱片还难以放入贝多芬第九交响曲,用户是不会接受的”,因此,CD唱片74分42秒(12cm)的播放规格得以确认.
1980年6月,Sony与飞利浦向由29家公司成立的DAD(数字音频光盘)会议提交了CD(Compact Disk,小型产品数字音频)系统的方案.1981年4月,DAD会议决定CD系统和日本Victor公司提出的经典式并类为国际统一规格,卡拉杨对CD方案给予了全力支持.
为了迅速将CD产品化,研发人员列出了一个急待解决的问题清单,竟然有200多条.1981年秋季,Sony的CD试制机面世,采用了半导体激光光头、专用LSI,但体积相当庞大.1982年8月,两家公司才选定聚碳酸酯作为盘片材料,这时离正式上市只有两个月.
1982年8月31日,Sony、CBS Sony唱片、飞利浦和宝利金四家公司在东京联合展开新闻发布会,宣布CD系统及软件上市.同年10月1日,Sony推出了第一台CD播放机CDP-101,宣告了光盘时代的到来.到年底,一共有100多种CD唱片上市,CD成了数字音频唱片的事实标准.

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