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lab recording, 25/10/1995, 22°C, position-detection lamp (Racal with B & K 1/2", tape no. KG95-1, microphone distance of ECDU9501 ca. 1 m) lab recording, 24/4/1995, 20.5°C, darkness (Kenwood KX880HX with Sennheiser BlackFire541, tape: TDK MA-X90, tape no. KW81:04.00-04.40) lab recording, 6/5/1995 at 3:30 h, 23°C, darkness (Sony D7 with small Sennheiser stereo, tape: Sony DT-60, tape no. D31:57.00-58.25, microphone filter below 100 Hz) |