Tag: Program Transcription

2022/10/17

Things I learned on Phono EQ curves, Pt. 4

前回 は、大恐慌時代の1930年代前半、WE特許使用料回避のため生まれたBlumleinシステムや、当時のRCA VictorやColumbiaの状況など、あれこれについて調べました。

On the previous part, I studied on the history of the improvement of disc recording technology for commercial discs, including the Blumlein system, situations of RCA Victor and Columbia in the 1930s (during the Great Depression), etc.

今回は、民生用ではなく、映画用・放送局向けのレコード技術 の話、そして初めてS/N比向上の目的で 意識的に高域プリエンファシスが用いられた録音技術 について学んでいきます。

This time, I am going to continue learning the history, from the disc recording technology for professional talking motion pictures and broadcast stations (not regular records for consumer market), and the very important technology that consiously used treble pre-emphasis for the first time in history, to increase S/N ratio.

Vertical cutting vs Lateral cutting (Read, 1952)

source: “The Recording and Reproduction of Sound”, Oliver Read, 2nd Edition, 1952, p.21, Fig. 3-3B.
縦振動記録（左）と横振動記録（右）の比較

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2022/10/10

Things I learned on Phono EQ curves, Pt. 3

前回 は、電気録音黎明期のあれこれについて調べました。今回は、その後発展していく電気録音、そして 1930年前後の各レーベルの状況 について引き続き調べていきます。

On the previous part, I studied on more of the history of Electrical Recording in its very early years, along with several digressions… This time, I am going to continue learning the evolution of the electrical recording, as well as the situation of record labels around the 1930s.

American Epic; Recording The {Twenties, Thirties} Continue reading →
2022/10/03

Things I learned on Phono EQ curves, Pt. 2

「Pt.0 (はじめに)」、そして「Pt.1 (定速度と定振幅、電気録音黎明期)」の続きです。

This article is a sequel to “Things I learned on Phono EQ curves, Pt.0” and “Things I learned on Phono EQ curves, Pt.1”.

前回 は、いろいろ脱線しながら（笑）レコードに記録される2つの特性と、電気録音黎明期のあれこれについて調べました。今回は、EQカーブの話を離れて、電気録音黎明期のあれこれ についてもう少し調べていきます。

On the previous part, I studied on two recording characteristics (constant velocity and constant amplitude), as well as the history of Electrical Recording in its very early years, along with several digressions… This time, I am going to continue learning other things during the early days of electrical recording, apart from EQ curves.

Brunswick Panatrope Ad, The Talking Machine World, Feb. 15, 1927, p.5

source: Brunswick Panatrope Ad on “The Talking Machine World, February 15, 1927”, p.5.

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2011/05/01

Feb. 3, 1932: The First Stereo Sound Recording Known To Exist

時は1932年2月3日。現存する最古のステレオ録音（とみなすことができるもの）が記録されました（ただし、意図的にステレオ録音されたものではなかった、とされてはいますが）。デューク・エリントン (Duke Ellington) オーケストラによるメドレー録音です。その6日後にも、別のメドレーが録音されました。

It was on February 3, 1932 when the oldest stereo recording known to exist was waxed (although it was not an “intended stereo recording” but an “accidental stereo recording”) – a seven minute medley by Duke Ellington and His Orchestra.

何種類か CD化 されているほか、「First stereo sound recording」(Benjamin S. Beck) で紹介されている以下のリンクでもその有名な音源を聴くことができます。

You can listen to the two “accidental stereo recordings” on several CD releases (such as “The Best Of The Duke Ellington Centennial Edition”) as well as with the following links (as appeared on the “First stereo sound recording” webpage by Benjamin S. Beck):

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