JP2017063357A - Setting method and setting device of parameter value of acoustic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique which allows an operator to set a parameter value appropriately to a maximum value or a minimum value, even if the operator performs slightly rough setting operation, in the setting of various parameters in an acoustic apparatus, such as the setting of the volume level.SOLUTION: In a sound volume 200, when dead bands 241, 251 are provided on the counterclockwise limit position side and the clockwise limit position side of a knob, and then the knob is turned counterclockwise, the volume level is the minimum value when the position of a scale 230 is reached, and the knob can be turned up to the position of a scale 240. When the knob is between the scales 230 and 240, the volume level is maintained at the minimum value. When the knob is turned clockwise, the volume level is the maximum value when the position of a scale 201 is reached, and the knob can be turned up to the position of a scale 250. When the knob is between the scales 239 and 250, the volume level is maintained at the maximum value.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a method and apparatus for setting various parameter values of an audio device, and more particularly to a technique suitable for use in setting the volume level of an audio device.

  Conventionally, various acoustic devices (for example, a mixer, a preamplifier, a power amplifier, etc.) that input and process an acoustic signal are known. Many of these acoustic devices are provided with an operator for signal level setting or the like as a basic component. For example, a power amplifier that amplifies an acoustic signal and outputs it to a speaker has a volume setting volume. The following non-patent document 1 discloses a power amplifier having a volume setting volume on a front panel.

  FIG. 6A shows a partial appearance on the panel of a conventional power amplifier. Reference numeral 600 denotes a volume for setting the volume of the power amplifier. The volume 600 includes a knob 601 with an arrow 602 on the surface. A circle 603 is drawn on the panel around the knob 601, and scales 630, 631,..., 639 are drawn along the circle 603. Auxiliary lines 641 and 642 (not drawn on the panel) indicate limit positions of the movable range of the knob 601 respectively. The auxiliary line 641 corresponds to the scale 630, and the auxiliary line 642 corresponds to the scale 639. When the knob 601 is rotated counterclockwise and the tip position of the arrow 602 reaches the scale 630, the knob 601 cannot be further rotated counterclockwise from the limit position 641. At this time, the volume level is the minimum value. I take the. When the knob 601 is rotated clockwise from the scale 630, the volume level gradually increases. When the knob 601 is rotated clockwise and the tip position of the arrow 602 reaches the scale 639, the knob 601 cannot be further rotated clockwise from the limit position 642. At this time, the volume level is the maximum value. I take the.

  FIG. 6B is a graph showing the relationship between the volume setting position (that is, the position in the rotational direction of the tip of the arrow 602 of the knob 601) and the volume level. The horizontal axis indicates the set position, and the vertical axis indicates the volume level. As shown in the graph 651, the volume level takes the minimum value (min) when the knob 601 points to the scale 0 (630), and the volume level takes the maximum value (max) when the knob 601 points to the scale 9 (639). . Here, it is assumed that the volume level is expressed in decibels, and the graph 651 is expressed as a straight line.

Power Amplifier PS Series Specifications 2014 Yamaha Corporation http://www.yamahaproaudio.com/japan/en/products/poweramps/ps_series/index.jsp

  By the way, in the setting of various parameters in the audio equipment such as the volume level setting, the parameter value is often set to the minimum value or the maximum value. For example, when processing or mixing processing is performed on signals from multiple sound sources and amplified with a power amplifier and emitted, the volume of the power amplifier is set to the maximum value and each signal is finely tuned. Level adjustment may be performed by a mixer. In addition, once you want to turn off all the sounds, the volume of the power amplifier may be set to the minimum value. For this reason, for example, when the volume of the power amplifier is a rotary type as in the above-described prior art, the operator of the audio equipment operates to rotate the volume clockwise to the end or counterclockwise to the end. Will do.

  When such a volume is turned clockwise and reaches a maximum value, its position is the limit in the clockwise direction, and beyond that, it cannot be turned to the right. Also, if the counterclockwise rotation reaches the minimum value, the position is the limit in the counterclockwise direction, and no further rotation is possible to the left. However, when the operator hurries up, it turns to the maximum value in the clockwise direction and then returns to the left slightly afterwards, or after turning to the minimum value in the counterclockwise direction. There were times when I went back clockwise. In this case, even if the operator sets the volume to the maximum value or actually sets the volume value to be slightly smaller than the maximum value, the operator actually sets the volume to 0 which is the minimum value. Was sometimes set to a slightly large volume value and sometimes sounded. Such a problem also occurs in a slide type operation element.

  The object of the present invention is to properly set the parameters even if the operator performs a slightly complicated setting operation when setting the parameter value to the maximum value or the minimum value in the setting of various parameters in the audio equipment such as the volume level setting. It is to provide a technique that allows a value to be set to a maximum value or a minimum value.

  In order to achieve the above object, the invention according to claim 1 is the method of setting a parameter value of an audio device, wherein the audio device is an operator for setting the parameter value, and the movable range is limited to a certain range. A dead zone is provided on at least one of the minimum value side or the maximum value side of the movable range of the operating element, and when the set position of the operating element enters the dead band, the minimum value or The maximum value is set.

  The invention according to claim 2 is a parameter value setting device for an audio device, and is an operator for setting the parameter value, wherein the movable range is limited to a certain range, and the minimum value side of the movable range or A dead zone is provided on at least one of the maximum value side, a means for detecting the setting position of the operating element, and a parameter setting means for outputting a parameter value based on the detected setting position of the operating element, When the detected setting position of the operating element falls within the dead zone, the minimum value or the maximum value of the range of values that the parameter can take is output as a parameter value.

  According to a third aspect of the present invention, in the parameter value setting device for an acoustic device according to the second aspect, the operation element is a rotation type or a slide type operation element.

  According to a fourth aspect of the present invention, in the parameter value setting device for an acoustic device according to the second or third aspect, the parameter value is a parameter value for designating a volume level of an acoustic signal.

  According to the present invention, in setting various parameters in an audio device such as volume level setting, even if the operator performs a slightly complicated setting operation when setting the parameter value to the maximum value or the minimum value, the parameter is appropriately set. The value can be set to the maximum value or the minimum value, and an operator's operation mistake can be compensated.

The whole block diagram of the sound system of the embodiment to which the present invention is applied Partial appearance diagram on the power amplifier panel and graph showing the relationship between setting position and volume level Figure showing a scale example on the panel Schematic configuration diagram of power amplifier A diagram showing another example of a control (slide type) Partial external view on the panel of a conventional power amplifier and a graph showing the relationship between setting position and volume level

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram of an acoustic system according to an embodiment to which the present invention is applied. The sound sources 101 to 103 are, for example, a microphone, a playback device for sound data stored in various storage media, or a musical instrument. The acoustic signals output from these sound sources 101 to 103 are input to the mixer 104. The mixer 104 performs a mixing process, an effect applying process, and the like on the input sound signal, and finally outputs an LR stereo 2ch sound signal. The L-side output signal is amplified by the power amplifier 105L and emitted by the speaker 106L. The R side output signal is amplified by the power amplifier 105R and emitted by the speaker 106R.

  FIG. 2 shows an appearance of a volume control provided on the panels of the power amplifiers 105L and 105R in FIG. The volume volume 200 includes a knob 201 with an arrow 202 on the surface. A circle 203 is drawn on the panel around the knob 201, and scales 230, 231,..., 239 are drawn along the circle 203. The scale 230 indicates the position where the volume level is set to the minimum, and the scale 239 indicates the position where the volume level is set to the maximum. Further, scales 240 and 250 indicate limit positions of the movable range of the knob 201. The scale 240 is a counterclockwise limit position of the knob 201, and the scale 250 is a clockwise limit position of the knob 201. Hereinafter, the position indicated by the tip of the arrow 202 of the knob 201 is simply referred to as “position of the knob 201”.

  The volume volume 200 of the present embodiment is provided with dead zones 241 and 251 on the counterclockwise limit position side and the clockwise limit position side of the knob 210. That is, when the knob 201 is rotated counterclockwise, the volume level becomes the minimum value when the knob 201 reaches the position of the scale 230, but the knob 201 can be further rotated counterclockwise to the position of the scale 240. When the knob 201 is between the scales 230 and 240 (that is, the dead zone 241), the volume level is kept at the minimum value. Similarly, when the knob 201 is rotated clockwise, the volume level becomes the maximum value when the knob 201 reaches the position of the scale 239, but the knob 201 can be further rotated clockwise to the position of the scale 250. . When the knob 201 is between the scales 239 and 250 (that is, the dead zone 251), the maximum volume level is maintained.

  Auxiliary lines 242 and 243 (not drawn on the panel) indicate rotational positions a0 and a1 of knobs 201 on scales 240 and 230, respectively. Between the scales 240 and 230, a line connecting the scales 240 and 230 is written on the panel to indicate that the dead zone 241 is present. Auxiliary lines 252 and 253 (not drawn on the panel) indicate rotational positions a2 and a3 of knobs 201 on scales 239 and 250, respectively. Between the scales 239 and 250, a line connecting the scales 239 and 250 is drawn on the panel to indicate that the dead zone 251 is present.

  FIG. 2B is a graph showing the relationship between the setting position of the volume knob and the volume level. The horizontal axis indicates the setting position of the knob 201, and the vertical axis indicates the volume level. As illustrated in FIG. 2A, a0, a1, a2, and a3 indicate positions in the rotation direction of the knob 201 corresponding to the auxiliary lines 242, 243, 252, and 253 in order. When the knob 201 is located between positions a0 and a1 261 (corresponding to the dead zone 241), the volume level is maintained at the minimum value (min). When the knob 201 is located between positions a1 and a2, the volume level is set to a value corresponding to the setting position of the knob 201. When the knob 201 is located between positions a2 and a3 262 (corresponding to the dead zone 251), the maximum volume level (max) is maintained.

  FIG. 3 shows an example of the scale on the panel. A knob 201 to which an arrow 202 is attached is the same as that shown in FIG. Reference numeral 301 denotes a scale written on the panel around the knob. Here, the decibel expression is adopted, and “−dB” 302 is written on the lower panel of the knob 201 to indicate it.

  In the example of FIG. 3A, 311 indicates a counterclockwise limit position, 312 indicates a position where the volume level is −∞ dB, which is the minimum value, and 313 indicates a dead zone. When the position of the knob 201 is in the dead zone 313, the volume level is maintained at −∞ dB. Similarly, 314 is a clockwise limit position, 315 is a position where the volume level is 0 dB, which is the maximum value, and 316 indicates a dead zone. When the position of the knob 201 is in the dead zone 316, the volume level is maintained at 0 dB. In this example, the dead zone 313 is represented by a line connecting the positions 311 and 312, and the dead zone 316 is represented by a line connecting the positions 314 and 315. Since the dead zone is marked on the panel with a clear line, the operator can set the volume level to the minimum value or the maximum value simply by positioning the knob 201 so as to cover the dead zone marked with these lines. Therefore, even if a miscellaneous operation is performed, a setting error when setting the volume level to the minimum value or the maximum value hardly occurs. Also, from the viewpoint of visibility, if the position of the knob 201 is in the dead zone, it can be recognized at a glance that the minimum value or the maximum value is set, and it is very easy to see.

  In the example of FIG. 3B, 321 is a counterclockwise limit position, 322 is a position where the volume level is −∞ dB, which is the minimum value, and 323 indicates a dead zone. However, the scale line indicating the position of the counterclockwise limit position 321 is omitted. When the position of the knob 201 is in the dead zone 323, the volume level is maintained at −∞ dB. Similarly, 324 is a clockwise limit position, 325 is a position where the volume level is 0 dB which is the maximum value, and 326 indicates a dead zone. However, the scale line indicating the position of the clockwise limit position 324 is omitted. When the position of the knob 201 is in the dead zone 326, the volume level is maintained at 0 dB.

  In this example, the dead zone 323 is represented by a line connecting the positions 321 and 322, and the dead zone 326 is represented by a line connecting the positions 324 and 325. Although the scale lines indicating the limit positions 321 and 324 are omitted, even if the limit positions 321 and 324 are not clearly shown, the example of FIG. 3B has the same effect as the example of FIG. Play. The end position of the line indicating the dead zone 323 may be matched with the limit position 321, but it is not always necessary to match. The end of the line indicating the dead band 323 may extend beyond the limit position 321, or the line indicating the dead band 323 may be stopped before reaching the limit position 321. If there is a certain length of the line indicating the dead zone 323, the setting error of the operator can be reduced because the dead zone 323 is present beyond the position 322 when turning counterclockwise, and the knob 201 is changed to the dead zone 323. You can see at a glance. The same applies to the dead zone 326 side.

  FIG. 3C shows an example in which the dead zone is expressed by color bands 331 and 332. Of course, in the example of FIGS. 3A and 3B, the color of the dead zone may be different from the background color or scale color of the panel. In FIG. 3C, the dead zone is expressed by simple bands 331 and 332 having colors different from the background color and scale color of the panel.

  FIG. 4 shows a schematic configuration of a power amplifier (105L and 105R in FIG. 1) having the sound volume described in FIGS. The power amplifier includes a level control unit 401 that performs level control of an input signal, and a signal amplification unit 402 that amplifies an acoustic signal from the level control unit 401 and outputs the amplified acoustic signal to a speaker. The level control unit 401 controls the level of the input signal according to the level value (voltage) that is a parameter output from the parameter setting unit 410.

  The parameter setting unit 410 includes a variable resistor 411, an A / D conversion unit 412, a table conversion unit 413, and a D / A conversion unit 414. The variable resistor 411 is a volume that is an operation element that can be rotated as described with reference to FIGS. The movable range of the variable resistor 411 corresponds to, for example, the range of positions a0 to a3 in FIG. The variable resistor 411 outputs a voltage corresponding to the setting position of the knob. The A / D conversion unit 412 converts the voltage into a digital value, normalizes it to an integer value of 0 to 110, for example, and outputs it. This output corresponds to the range from the horizontal axis a0 to a3 in FIG.

  The table conversion unit 413 determines and outputs an output value corresponding to the input value so as to be in the relationship of the graph of FIG. For example, when the input value IN to the table conversion unit 413 is 0-5, the output value OUT = 0, when the input value IN is 6-104, the output value OUT = IN-5, and the input value IN is 105- When 110, the output value OUT = 100. As a result, the table conversion unit 413 outputs a parameter value OUT (level value digital representation data) in the range of 0 to 100 according to the knob position of the variable resistor 411.

  The D / A conversion unit 414 outputs a control voltage corresponding to the output value OUT in the range of 0 to 100 from the table conversion unit 413 to the level control unit 401 as a level value. This control voltage is such that when the output value OUT = 0, the level control unit 401 controls the input signal to the minimum level, and when the output value OUT = 100, the level control unit 401 controls the input signal to the maximum level. Value.

  In the above description, the rotary type operation element has been described as an example, but the same applies to a slide type operation element. FIG. 5 shows an example in which the present invention is applied to a slide type operation element. The volume 500 is an operator that moves the knob 501 up and down. Reference numeral 511 denotes the minimum position of the movement range of the knob 501 and 512 denotes the maximum position. The minimum position 511 corresponds to the position a0 in FIG. 2, and the maximum position 512 corresponds to the position a3. Reference numeral 521 denotes a position where the set value takes the minimum value, and 522 denotes a position where the set value takes the maximum value. The position 521 corresponds to the position a1 in FIG. 2, and the position 522 corresponds to the position a2. Between the positions 511 and 521 is a dead zone, and when the knob 501 is within this range, the set value maintains the minimum value. Between the positions 512 and 522 is a dead zone, and when the knob 501 is within this range, the set value maintains the maximum value.

  In the above-described embodiment, an example in which the present invention is applied to an operator that sets a volume level has been described. However, the present invention can also be applied to parameter settings other than the volume level. However, the present invention is suitable for application to parameter settings in which operations such as setting the minimum value or the maximum value are frequently performed, such as the volume level of the power amplifier.

  In the above embodiment, the relationship between the setting position and the volume level (parameter value) shown in FIG. 2B is realized by the configuration like the parameter setting unit in FIG. 4, but the relationship as shown in FIG. As long as the above can be realized, another configuration may be used. For example, instead of the variable resistor 411 and the A / D converter 412, an encoder that can directly generate the input value IN described above may be used. However, it is assumed that the operator setting the parameter value has a limited movable range, that is, an operator having a movement limit position on both the minimum value side and the maximum value side. According to the present invention, when the operator performs an operation to set the operating element to the limit position, the operator's intention is maintained even when the operating element is actually set at a position slightly deviated from the limit position because of the rough operation. This is because the parameter value is automatically set to a value (minimum value or maximum value) corresponding to the limit position.

  In the above-described embodiment, an example in which the dead zone is provided on both the minimum value side and the maximum value side of the sound volume level (parameter value) has been described. However, the dead zone may be provided on only one of them. Moreover, the length of the dead zone within the movable range of the operation element is arbitrary. In the above embodiment, the length of the dead zone is a predetermined fixed length, but the operator may be able to set the length of the dead zone according to his / her preference.

  Some of the controls can be set with different parameter values depending on whether they are operated without pressing a predetermined shift switch or the like and when operated while pressing the shift switch. Some parameters can be set according to the specified mode. In such an operator, the first parameter changes as shown in FIG. 6B and the second parameter changes as shown in FIG. 2B according to the parameter type. Good.

  101-103 ... Sound source, 104 ... Mixer, 105L, 105R ... Power amplifier, 106L, 106R ... Speaker, 201 ... Knob, 230-239 ... Scale, 241, 251 ... Dead band, 240, 250 ... Limit position of the operator, 401 ... Level control section 402... Signal amplification section 410. Parameter setting section 411. Variable resistor 412 A / D conversion section 413 Table conversion section 414 D / A conversion section

Claims (4)

In the setting method of the parameter value of the audio equipment,
The acoustic device is an operator for setting the parameter value, and has a movable range limited to a certain range,
A dead zone is provided on at least one of the minimum value side or the maximum value side of the movable range of the operating element, and when the setting position of the operating element enters the dead band, a minimum value or a maximum value is set as a parameter value. To set the parameter value of the audio equipment to be used. A parameter value setting device for audio equipment,
An operator for setting the parameter value, wherein the movable range is limited to a certain range, and a dead zone is provided on at least one of the minimum value side or the maximum value side of the movable range;
Means for detecting a set position of the manipulator;
Parameter setting means for outputting a parameter value based on the detected setting position of the operating element, and when the detected setting position of the operating element falls within the dead zone, the minimum value of the range of values that the parameter can take or A device for setting a parameter value of an audio device, comprising: a device that outputs a maximum value as a parameter value. In the setting apparatus of the parameter value of the audio equipment according to claim 2,
The apparatus for setting parameter values of an acoustic device, wherein the operation element is a rotation type or a slide type operation element. In the setting apparatus of the parameter value of the audio equipment according to claim 2 or 3,
The parameter value setting device for an acoustic device, wherein the parameter value is a parameter value that specifies a volume level of an acoustic signal.

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