Need to make a clarification. In the early 70's Denon (NHK) showed and
used a 4 track digital recorder based on a Quad VTR. It was the size of
a Sub Zero. I think I have a picture of it somewhere in my computer.
בתאריך 08/08/12 6:20 PM, ציטוט Tom Fine:
> Sony's digital efforts were years after the NHK, first alone and then
> working with Denon, had developed PCM audio recording. NHK had a
> working mono PCM recorder that used videotape as its storage medium
> before 1970. By 1972, Denon was releasing commercial LPs made with its
> stereo PCM-to-video recorder. By 1974, they had dozens of LPs in the
> can. As I wrote in my ARSCJ article linked in a previous post, PCM
> concepts and technology were developed for telephony and dated from
> the 1940's (and earlier, actually the 1920's). But, the first use for
> professional audio recording was the NHK in Japan, and Denon quickly
> latched onto their developments and research. Sony was not a "digital
> first" by any means, but their R&D probably did as much or more than
> anyone in making digital audio (and video) recording and playback
> I didn't get into Sony very much in my ARSCJ article because the scope
> of it was to deal with "digital firsts" i.e. the dawn of things
> digital. Sony would be a lead subject in an article about "the day of
> digital" or "the digital takeover of mass media." I don't mean any of
> that in a pejorative sense, just stating facts.
> -- Tom Fine
> ----- Original Message ----- From: "Lou Judson" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, August 08, 2012 8:15 AM
> Subject: Re: [ARSCLIST] Digital History Query
> Just to save others time researching; The article says this:
> "Nevertheless, Takayama and Suzukawa toiled to build Sony's first PCM
> digital audio recording machine, the X-12DTC, was announced in 1974.
> It used 2-inch wide tape and a fixed head with 56 channels. Although
> it reproduced sound, the X-12DTC recorder was roughly the size of a
> refrigerator. The transport unit alone weighed approximately 250
> kilograms. Although overly bulky, the creation of the first machine
> marked the beginning of Sony's history in digital sound recording. The
> machine was transported to and from various venues to make test
> recordings of orchestral music. The recorder was also exhibited at the
> 1974 Audio Fair in Japan. Some audio specialists remarked on the
> clarity of the machine's sound. In the end, however, the recorder was
> not marketed, even though producing digital sound through a PCM system
> with fixed heads represented a revolution in recording technology."
> and Betamax is not describer further in the article. So there was a 2"
> digital recorder prototype, but it was not a Betamax... was it? Kind
> of like having an 18 wheeler Chevy; I never saw one!
> If one were looking for that specific CD how would one ID it - does it
> have a label number? Sounds interesting.
> Lou Judson
> Intuitive Audio
> On Aug 7, 2012, at 2:03 PM, David Lewis wrote:
>> Is it possible that digital was somewhere in the chain of "Cheap
>> Trick at
>> Budokan." Historically it is possible:
>> The PCM-1 was in use and already being marketed by April of 1978 when
>> the Budokan concerts were recorded. At that time, Sony was using 2"
>> the disc was being developed, but was not putting out acceptable results
>> yet as either a recording or playback format. However, April 1978 is
>> a bit
>> before the
>> fateful meeting with Karajan mentioned in this corporate history.
מומחה לשימור והמרה של אודיו וידאו וסרטים 8-35 ממ.