Description
CANFORD QUICK CHECK TEST TAPES AND DISCS
The introduction of digital recording media has seen the decline in use of test tapes and tones, although correct alignment of equipment and recordings is still essential to get the best out of any audio system and for when material is passed to other facilities, for example when submitting broadcast tapes, field recordings, or CD pre-masters.
These new tapes and discs contain 12 tracks of essential technical signals and reference speech recordings to allow operators and technicians to perform basic alignment and quality checks on audio systems. Ideal for a quick check of unfamiliar equipment and acoustics, as well as a source of regular tune-up material.
The test signals used on these discs were specially prepared for Canford Audio by BBC Research and Development Department. Speech recordings were recorded for these discs under carefully controlled conditions by BBC Radio Production Resources with announcer Peter Donaldson in Studio B15, Broadcasting House, London.
Available on Compact Disc and Mini Disc, each in a jewel case, and 48kHz DAT in a library case. All are supplied with explanatory notes and usage tips.
Contents
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Dual level track: | For record and replay level alignment, including portable recorders |
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440Hz Concert ‘A’: | For tuning and speed checks |
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100Hz, 1kHz, 10kHz tones: | For distortion and crosstalk checks |
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Slow sweep: | For checking frequency response, honks, rattles and resonances |
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Pink noise: | For speaker, crossover and acoustic checks |
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CD line-up tone: | For playback of commercial CDS e.g. radio station CD players |
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Phase check: | For checking phase and chanel identification |
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Speech recordings: | Reference text and shipping forecast for subjective assessment |
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Digital peak level: | For headroom check |