185:
82:
so the video programming may be calibrated as well. It is sometimes played in sequence between a 100 Hz and 10 kHz tone to ensure an accurate response from the equipment at varying audio frequencies. This is also the
189:
119:. Some specialized tuners offer pitches used commonly on a particular instrument (standard guitar tuning, fifth intervals for string instruments, the open tones for various brass instruments).
58:
256:
155:
200:
194:
159:
246:
251:
70:. It is meant to be used by audio engineers in order to adjust the playback equipment so that the accompanying
231:
115:(A4). More sophisticated tuners offer a choice of other reference pitches to account for differences in
104:
140:
39:
128:
51:
100:
75:
71:
227:
116:
240:
108:
204:
84:
210:
151:
17:
88:
136:
79:
35:
112:
163:
67:
144:
38:
corresponding to a known frequency, and produced at a stable
150:
For standardized test signal levels and frequencies, see
74:is at a comfortable volume for the audience. In
27:Pure audio tone at stable frequency and volume
139:with a standardized level generally used for
8:
42:(volume), usually by specialized equipment.
78:, this tone is usually accompanied by a
175:
7:
91:obscene or sensitive audio content.
156:United States Department of Defense
50:The most common reference tone in
25:
103:used by musicians emit a tone of
188: This article incorporates
183:
143:of single links and of links in
201:General Services Administration
166:for other Government agencies.
1:
257:Telecommunications standards
228:Downloadable reference tones
160:Code of Federal Regulations
273:
196:Federal Standard 1037C
190:public domain material
232:The Freesound Project
209: (in support of
123:In telecommunications
107:, corresponding to a
40:sound pressure level
158:(DOD) use, and the
133:standard test tone
247:Audio engineering
129:telecommunication
101:electronic tuners
87:commonly used to
52:audio engineering
16:(Redirected from
264:
252:Music production
215:
214:
208:
203:. Archived from
187:
186:
180:
76:video production
65:
64:
63:
61:
21:
18:Calibration tone
272:
271:
267:
266:
265:
263:
262:
261:
237:
236:
224:
219:
218:
193:
184:
182:
181:
177:
172:
141:level alignment
125:
97:
59:
57:
56:
55:
48:
28:
23:
22:
15:
12:
11:
5:
270:
268:
260:
259:
254:
249:
239:
238:
235:
234:
223:
222:External links
220:
217:
216:
207:on 2022-01-22.
174:
173:
171:
168:
124:
121:
96:
93:
47:
44:
32:reference tone
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
269:
258:
255:
253:
250:
248:
245:
244:
242:
233:
229:
226:
225:
221:
212:
206:
202:
198:
197:
191:
179:
176:
169:
167:
165:
161:
157:
153:
148:
146:
142:
138:
134:
130:
122:
120:
118:
114:
110:
106:
102:
94:
92:
90:
86:
81:
77:
73:
69:
62:
53:
45:
43:
41:
37:
33:
19:
205:the original
195:
178:
149:
132:
126:
98:
85:"bleep" tone
66:at −20
60:1000 Hz tone
49:
31:
29:
211:MIL-STD-188
152:MIL-STD-188
111:of A above
241:Categories
170:References
162:Title 47,
154:-100 for
137:pure tone
80:test card
36:pure tone
113:Middle C
95:In music
46:In media
230:, from
164:part 68
145:tandem
117:tuning
89:censor
192:from
135:is a
109:pitch
105:440Hz
99:Many
72:media
54:is a
34:is a
147:.
131:, a
127:In
243::
213:).
199:.
68:dB
30:A
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.