audio-intl

CELIA

Celia Records are made by Burwen Studios unique Indirect Disc process. The master disc for these records was cut from a high accuracy, low distortion, 100 dB dynamic range tape.

The first original tapes were recorded at Burwen Studios during late 1973 and January 1974. Using 14 low noise capacitor microphones, the sound was live mixed to four channels and recorded through Burwen Model 2000 companding Audio Processors onto a specially redesigned 3M tape machine. All the signal processing equipment and the low noise microphones used are the products of many years of development by sound specialist Richard S. Burwen.

After playback of the four channels through the Audio Processors, the signals were equalized, remixed to two channels, processed again through a Model 2000 Audio Processor, and recorded onto a two channel master tape. The original issue of The East Bay City Jazz Band record has been sold out. With the installation of new 120 dB dynamic range equalizing equipment, additional panels of signal processors, and 159 woofers, tweeters, and mid-range speakers, it became possible to make some improvements in the remixed sound.

Using the original four track tapes, which have over 105 dB dynamic range, the sound has been remixed with some room reverberation added to the trumpets and trombone to produce a smoother sound and a somewhat higher level on the master disc. The new two track tape encoded through the Burwen Audio Processor was then brought to Mastering Lab in New York for disc cutting on a Neumann lathe. A special equalizer was used to flatten the response through the tape player within a fraction of a dB and then the signal was decoded by the the Model 2000 Audio Processor to produce a 100 dB dynamic range signal. The entire process delivers to the disc cutter a signal essentially as clean and undistorted as the original microphone outputs with the advantages of tape editing, and microphones and mixing equipment that are unequalled.

The limited number of pressings made from each pair stampers maintains uniform state-of-the-art quality.

CELIA

Celia Records are made by Burwen Studios unique Indirect Disc process. The master disc for these records was cut from a high accuracy, low distortion, 100 dB dynamic range tape.

The first original tapes were recorded at Burwen Studios during late 1973 and January 1974. Using 14 low noise capacitor microphones, the sound was live mixed to four channels and recorded through Burwen Model 2000 companding Audio Processors onto a specially redesigned 3M tape machine. All the signal processing equipment and the low noise microphones used are the products of many years of development by sound specialist Richard S. Burwen.

After playback of the four channels through the Audio Processors, the signals were equalized, remixed to two channels, processed again through a Model 2000 Audio Processor, and recorded onto a two channel master tape. The original issue of The East Bay City Jazz Band record has been sold out. With the installation of new 120 dB dynamic range equalizing equipment, additional panels of signal processors, and 159 woofers, tweeters, and mid-range speakers, it became possible to make some improvements in the remixed sound.

Using the original four track tapes, which have over 105 dB dynamic range, the sound has been remixed with some room reverberation added to the trumpets and trombone to produce a smoother sound and a somewhat higher level on the master disc. The new two track tape encoded through the Burwen Audio Processor was then brought to Mastering Lab in New York for disc cutting on a Neumann lathe. A special equalizer was used to flatten the response through the tape player within a fraction of a dB and then the signal was decoded by the the Model 2000 Audio Processor to produce a 100 dB dynamic range signal. The entire process delivers to the disc cutter a signal essentially as clean and undistorted as the original microphone outputs with the advantages of tape editing, and microphones and mixing equipment that are unequalled.

The limited number of pressings made from each pair stampers maintains uniform state-of-the-art quality.

LP-Katalog