Sounds of Frequency: A Test Record

While some of the sounds on this album could be the noise produced by various electric equipment (fax machine buzz, phone busy tones etc.) this album is actually to provide “a standard by which record playing equipment can be checked for frequency response, and distortion, without equipment other than an oscilloscope and volume indicator.” Recorded and annotated by Peter Bartok. Liner notes include detailed information about each track (frequency) and method of testing.

Track Listing

101	1000, 4000, 15000 cps.	n/a	00:28
102	1000 cps. (0 db.) 1	n/a	00:06
103	22.5 kc., 16 kc., 11.5 kc. (0 db.)	n/a	00:29
104	8 kc., 5.66 kc., 4 kc. (0 db.)	n/a	00:26
105	2.83 kc., 2 kc., 1.4 kc. (0 db.)	n/a	00:25
106	1 kc. (0 db.)	n/a	00:06
107	707 cps., 500 cps., 354 cps. (0 db.)	n/a	00:25
108	250 cps., 177 cps., 125 cps. (0 db.)	n/a	00:24
109	83.3 cps., 62.5 cps., 44.2 cps. (0 db.)	n/a	00:25
110	31.3 cps., 22.1 cps., 15.6 cps. (0 db.)	n/a	00:29
111	1000 cps. (0 db.) 2	n/a	00:05
112	444 "A"	n/a	00:23
113	435 "A"	n/a	00:41
114	440 "A"	n/a	00:29
115	1000 cps., 5000 cps., 15000 cps. same level as Band 1.	n/a	00:27
201	100 cps. square wave (500 cps. turnover, no pre-emphasis)	n/a	00:33
202	1000 cps. square wave (500 cps. turnover, no pre-emphasis)	n/a	00:32
203	100 cps. square wave (500 cps. turnover, pre-emphasis from 2000 cps. on)	n/a	00:31
204	1000 cps. square wave (500 cps. turnover, pre-emphasis from 2000 cps. on)	n/a	00:31
205	16 kc. sine wave with 60 cps. amplitude modulation	n/a	00:26
206	8 kc. sine wave with 60 cps. amplitude modulation	n/a	00:35
207	16 kc., 8 kc., 4 kc., 2 kc., 1 kc., 500 cps., 250 cps., 125 cps., 63 cps., 31 cps. (at appr. -10 db.)	n/a	02:41
208	Mikrokosmos Suite, Piece No. 8 (500 cps. Turnover, No Pre-Emphasis)	Bartok-Serly	02:34
209	Mikrokosmos Suite, Piece No. 8 (500 cps. Turnover, Pre-Emphasis from 2000 cps. on)	Bartok-Serly	02:35
210	Mikrokosmos Suite, Piece No. 8 (630 cps. Turnover, Pre-Emphasis from 1600 cps. on)	Bartok-Serly	02:35