sound library
Stereo Test Record (LP)
Tracked express shipping from Italy, no customs or import VAT in the EU. Shipping costs
condition (record/cover): NM / EX
Gatefold sleeve.
Issued by the British magazine Hi-Fi Sound for its readers in the late sixties: a record of tones, sweeps, channel-identification announcements, tracking tests and a few musical excerpts, designed to let the home listener diagnose a turntable and a pair of speakers without instruments. The voice announcing "left channel" in received pronunciation is, half a century on, as evocative as any of the music in this sale.
Test records are the purest form of sound library, sound with no content but itself, and this one is a good, clean example from the golden age of the British hi-fi press. UK pressing, HFS series.
Release notes
Each complete test or group of test ends with a locked groove. Intensive notes are found on the sleeve for each test, care of records, about this record and Ambisonics. Although the sleeve states that 'The master disc was cut at Strawberry Mastering, London, on a Neumann lathe fitted with an Ortofon cutter head', Side A was in fact cut by Tape One, as evidenced by the runout etchings.
| Test 1: Channel Recognition And Phasing | |||
| A1a | Band A: Left And Right Channel Identification | ||
| A1b | Band B: Phasing Check, Signals In Phase | ||
| A1 | Band C: Phasing Check, Signals Out Of Phase | ||
| Test 2: Lateral Modulation For Determination Of Tracking Pressure In Conjunction With Bias Correction | |||
| A2a | Band A: +8dB Ref. Nominal 5cm/sec RMS | ||
| A2b | Band B: +11dB Ref. Nominal 5cm/sec RMS | ||
| A2c | Band C: +14dB Ref. Nominal 5cm/sec RMS | ||
| Test 3: Vertical Modulation For Determination Of Tracking Pressure In Conjunction With Bias Correction | |||
| A3a | Band A: +2dB Ref. Nominal 5cm/sec RMS | ||
| A3b | Band B: +5dB Ref. Nominal 5cm/sec RMS | ||
| A3c | Band C: +8dB Ref. Nominal 5cm/sec RMS | ||
| Test 4: Pickup Output, Channel Balance, Separation | |||
| A4a | Band A: Left Channel 1,000Hz, 5cm/sec Lateral | ||
| A4b | Band A: Right Channel 1,000Hz, 5cm/sec Lateral | ||
| A5 | Test 5: Determination Of Bias Correction Test At Inner Grooves Of The Disc | ||
| Test 1: Ambisonic Tests | |||
| B1a | Band A: Test For Determining The Accuracy Of Directional Information Resulting From Ambisonic UHJ Decoding | ||
| B1b | Band B: Setting-up Signal For Ambisonic Surround-sound Decoders | ||
| B2 | Test 2: Pink Noise | ||
| B3 | Test 3: White Noise | ||
| B4 | Test 4: Wow And Flutter - Test Tone | ||
| B5 | Test 5: Pickup Resonance Test | ||
| B6 | Test 6: Rumble Test - Unmodulated Grooves | ||
- Geoffrey Barton
- Engineer [Recording]
- Sean Davies
- Lacquer Cut By [Cutting Engineer]
- Clement Brown
- Producer
- John Wright
- Producer
- Pauline Hatfield
- Voice [Announcements]





























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