Testing device for vocoder

Abstract

The utility model relates to the technical field of vocoder testing, and discloses a testing device for a vocoder, which comprises a bottom plate, a support is fixed on the bottom plate, a motor is mounted on the support, a connecting rod is fixed on an output shaft of the motor, a movable frame is fixed at one end, far away from the motor, of the connecting rod, and the movable frame is fixed on the bottom plate. A telescopic assembly is arranged on the moving frame, and a driving assembly is arranged on the bottom plate and the moving frame jointly. Through the starting motor, the moving frame and mutually connected parts, the device can dynamically test the vocoder, the sound source rotates around the vocoder and reciprocates on the moving frame at the same time, the distance between the sound source and the vocoder is kept to be changed, and the sound source can be used for testing the vocoder. Therefore, the dynamic relationship between the sound source and the vocoder in a real scene can be simulated, and the authenticity and comprehensiveness of the test can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vocoder testing, in particular to a testing device for a vocoder. Background Art

[0002] A vocoder is a device used to convert sound signals into electrical signals or vice versa. Devices used to test vocoders are usually designed to verify their performance, accuracy, and reliability.

[0003] After searching, the Chinese patent with publication number CN217902725U discloses a test device for a vocoder, including a clamping mechanism, an angle adjustment mechanism, a first adjustment component, a rotating mechanism and a second adjustment component, wherein the clamping mechanism includes at least two groups of clamping components, one group of the clamping components is used to clamp one side of the vocoder, the angle adjustment mechanism is connected to the clamping mechanism, the first adjustment component is connected to the angle adjustment mechanism, and is used to control the accuracy of the angle adjustment mechanism to adjust the angle, the rotating mechanism is connected to the angle adjustment mechanism, and the second adjustment component is connected to the rotating mechanism, and is used to drive the rotating mechanism to rotate. The above technical solution can realize the influence of at least two physical parameters such as the angle and distance of the test sound source relative to the vocoder, which is conducive to further analysis of the use effect of the vocoder. However, the above technical solution still has the following shortcomings when used:

[0004] The above technical solution can only adjust the distance between the sound source and the vocoder, that is, the vocoder is tested when the sound source is fixed, and dynamic testing of the vocoder cannot be achieved. Many vocoders may face different acoustic environments, noise and vibrations in actual use. Static testing cannot capture these actual scenarios and therefore cannot provide a comprehensive performance evaluation.

[0005] Therefore, it is necessary to design a test device for a vocoder to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a testing device for a vocoder.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A testing device for a vocoder comprises a base plate, a bracket is fixed on the base plate, a motor is mounted on the bracket, a connecting rod is fixed on the output shaft of the motor, a movable frame is fixed on the end of the connecting rod away from the motor, a telescopic component is arranged on the movable frame, and a driving component is arranged on the base plate and the movable frame.

[0009] As a preferred technical solution of the utility model, the telescopic assembly includes an outer cylinder, an inner rod, two adjustment ports, two positioning ports and a positioning pin. The outer cylinder is rotatably mounted on a movable frame, the inner rod is slidably connected in the outer cylinder, and one end of the inner rod extends to the outside of the outer cylinder. The two adjustment ports are respectively opened at the upper and lower ends of the inner rod, the two positioning ports are both opened on the outer cylinder, and the two positioning ports are arranged opposite to each other, and the positioning pin passes through the two positioning ports and one of the adjustment ports.

[0010] As a preferred technical solution of the utility model, the driving assembly includes a gear, a gear ring, a reciprocating screw, two bevel gears, a moving seat and a sound source, the gear is fixedly sleeved on the end of the inner rod located outside the outer cylinder, the gear ring is fixed on the bottom plate, and the gear and the gear ring are meshed with each other, the reciprocating screw is rotatably assembled on the moving frame, one of the bevel gears is fixedly sleeved on the outer cylinder, and the other bevel gear is fixedly sleeved on the reciprocating screw, and the two bevel gears are meshed with each other, the moving seat is threadedly sleeved on the reciprocating screw, and the bottom surface of the moving seat and the side surface of the moving frame are in contact with each other, and the sound source is fixed on the moving seat.

[0011] As a preferred technical solution of the utility model, the inner surface of the outer cylinder and the outer surface of the inner rod are in contact with each other.

[0012] As a preferred technical solution of the utility model, a handle is fixed to the top end of the inner rod.

[0013] As a preferred technical solution of the present utility model, the motor and the gear ring are coaxially arranged.

[0014] The utility model has the following beneficial effects:

[0015] 1. By starting the motor, the mobile frame and the interconnected parts, the device can realize dynamic testing of the vocoder. While the sound source rotates around the vocoder, it also reciprocates on the mobile frame, so that the distance between the sound source and the vocoder keeps changing. This helps to simulate the dynamic relationship between the sound source and the vocoder in the real scene and improve the authenticity and comprehensiveness of the test.

[0016] 2. The device also has the ability to fix the position of the sound source. By pulling out the positioning pin, the inner rod can slide freely. The staff can choose to fix the position of the sound source to achieve traditional fixed testing. This flexibility makes the test device suitable for different testing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a test device for a vocoder proposed by the utility model;

[0018] Figure 2 for Figure 1A magnified view of the structure at A;

[0019] Figure 3 It is a structural schematic diagram of the telescopic component;

[0020] Figure 4 for Figure 3 Enlarged view of the structure at B.

[0021] In the figure: 1 base plate, 2 bracket, 3 motor, 4 connecting rod, 5 moving frame, 61 outer cylinder, 62 inner rod, 63 adjustment port, 64 positioning port, 65 positioning pin, 71 gear, 72 ring gear, 73 reciprocating screw rod, 74 bevel gear, 75 moving seat, 76 sound source. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A testing device for a vocoder includes a base plate 1, a bracket 2 is fixed on the base plate 1, a motor 3 is installed on the bracket 2, a connecting rod 4 is fixed on the output shaft of the motor 3, and a moving frame 5 is fixed on the end of the connecting rod 4 away from the motor 3.

[0024] The mobile frame 5 is provided with a telescopic assembly, which includes an outer cylinder 61, an inner rod 62, two adjustment ports 63, two positioning ports 64 and a positioning pin 65. The outer cylinder 61 is rotatably mounted on the mobile frame 5, the inner rod 62 is slidably connected in the outer cylinder 61, and one end of the inner rod 62 extends to the outside of the outer cylinder 61. A handle is fixed to the top of the inner rod 62. The inner surface of the outer cylinder 61 and the outer surface of the inner rod 62 fit each other. The two adjustment ports 63 are respectively provided at the upper and lower ends of the inner rod 62. The two positioning ports 64 are both provided on the outer cylinder 61, and the two positioning ports 64 are arranged opposite to each other. The positioning pin 65 passes through the two positioning ports 64. With one of the adjustment ports 63, the staff can adjust the position of the inner rod 62 through the positioning pin 65. When the inner rod 62 moves up, the gear 71 is no longer meshed with the ring gear 72. In this case, during the process of the motor 3 driving the movable frame 5 to rotate through the connecting rod 4, since the gear 71 is no longer meshed with the ring gear 72, the outer cylinder 61 will not rotate, the reciprocating screw rod 73 will not rotate, and the movable seat 75 will not move. This allows the sound source 76 to rotate around the vocoder, and the distance between the sound source 76 and the vocoder is always in a constant state during the rotation, thereby realizing the traditional fixed testing method.

[0025] The bottom plate 1 and the movable frame 5 are provided with a driving assembly, which includes a gear 71, a gear ring 72, a reciprocating screw rod 73, two bevel gears 74, a movable seat 75 and a sound source 76. The gear 71 is fixedly sleeved on one end of the inner rod 62 located outside the outer cylinder 61, the gear ring 72 is fixed on the bottom plate 1, and the gear 71 and the gear ring 72 are meshed with each other. The motor 3 and the gear ring 72 are coaxially arranged. The reciprocating screw rod 73 is rotatably assembled on the movable frame 5, one of the bevel gears 74 is fixedly sleeved on the outer cylinder 61, and the other bevel gear 74 is fixedly sleeved on the reciprocating screw rod 73. The two bevel gears 74 are meshed with each other, the moving seat 75 is threadedly sleeved on the reciprocating screw rod 73, and the bottom surface of the moving seat 75 and the side surface of the moving frame 5 are in contact with each other, and the sound source 76 is fixed on the moving seat 75. In the initial state, the positioning pin 65 is inserted into the adjustment port 63 at the upper end. At this time, the gear 71 and the ring gear 72 are meshed with each other. In this case, the sound source 76 can also reciprocate on the moving frame 5 while rotating around the vocoder, which makes the distance between the sound source 76 and the vocoder always in a changing state, thereby performing a dynamic test on the vocoder.

[0026] The specific working principle of the utility model is as follows:

[0027] When the test device for the vocoder proposed by the utility model is used, the staff places the vocoder in the middle of the top surface of the bottom plate 1, and then starts the motor 3. When the motor 3 is running, it can drive the movable frame 5 to rotate around the vocoder through the connecting rod 4. In the initial state, the positioning pin 65 is inserted into the adjustment port 63 at the upper end. At this time, the gear 71 and the ring gear 72 are meshed with each other. In this case, the movable frame 5 can drive the gear 71 to rotate when rotating. The gear 71 will rotate under the action of the ring gear 72, which makes the inner rod 62 and the outer cylinder 61 rotate. The outer cylinder 61 rotates. At the same time, the two mutually meshing bevel gears 74 can drive the reciprocating screw rod 73 to rotate. Since the bottom surface of the moving seat 75 fits with the side surface of the moving frame 5, the moving seat 75 cannot rotate with the reciprocating screw rod 73, but will reciprocate on the moving frame 5 under the action of the reciprocating screw rod 73, and the sound source 76 will also move accordingly. Based on the above process, the sound source 76 can also reciprocate on the moving frame 5 while rotating around the vocoder, which makes the distance between the sound source 76 and the vocoder always in a changing state, thereby performing a dynamic test on the vocoder.

[0028] The device can also fix the position of the sound source 76, and can also realize the traditional fixed test method. Specifically, the staff first pulls out the positioning pin 65 from the adjustment port 63. Without the limit of the positioning pin 65, the inner rod 62 can slide freely in the outer cylinder 61. At this time, the staff pulls the inner rod 62 upward until the adjustment port 63 at the lower end is directly opposite to the two positioning ports 64. The staff inserts the positioning pin 65 into the positioning port 64 and the corresponding adjustment port 63 again, and uses the positioning pin 65 to fix the position of the inner rod 62. When the inner rod 62 moves up, the gear 71 will also move up and no longer mesh with the ring gear 72. In this case, during the process of the motor 3 driving the moving frame 5 to rotate through the connecting rod 4, since the gear 71 is no longer meshed with the ring gear 72, the outer cylinder 61 will not rotate, the reciprocating screw rod 73 will not rotate, and the moving seat 75 will not move. This allows the sound source 76 to rotate around the vocoder, and the distance between the sound source 76 and the vocoder during the rotation is always in a constant state, thereby realizing the traditional fixed test method.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A test device for a vocoder, characterized in that: The invention comprises a base plate (1), a bracket (2) being fixed on the base plate (1), a motor (3) being mounted on the bracket (2), a connecting rod (4) being fixed on the output shaft of the motor (3), a moving frame (5) being fixed on one end of the connecting rod (4) away from the motor (3), a telescopic component being arranged on the moving frame (5), and a driving component being arranged on both the base plate (1) and the moving frame (5).

2. A test device for a vocoder according to claim 1, characterized in that: The telescopic assembly comprises an outer cylinder (61), an inner rod (62), two adjustment openings (63), two positioning openings (64) and a positioning pin (65); the outer cylinder (61) is rotatably mounted on the movable frame (5); the inner rod (62) is slidably connected in the outer cylinder (61), and one end of the inner rod (62) extends to the outside of the outer cylinder (61); the two adjustment openings (63) are respectively arranged at the upper and lower ends of the inner rod (62); the two positioning openings (64) are both arranged on the outer cylinder (61), and the two positioning openings (64) are arranged opposite to each other; and the positioning pin (65) passes through the two positioning openings (64) and one of the adjustment openings (63).

3. A test device for a vocoder according to claim 2, characterized in that: The driving assembly comprises a gear (71), a gear ring (72), a reciprocating screw rod (73), two bevel gears (74), a moving seat (75) and a sound source (76); the gear (71) is fixedly sleeved on one end of the inner rod (62) located outside the outer cylinder (61); the gear ring (72) is fixed on the bottom plate (1), and the gear (71) and the gear ring (72) are meshed with each other; the reciprocating screw rod (73) is rotatably assembled on the moving frame (5); one of the bevel gears (74) is fixedly sleeved on the outer cylinder (61), and the other bevel gear (74) is fixedly sleeved on the reciprocating screw rod (73), and the two bevel gears (74) are meshed with each other; the moving seat (75) is threadedly sleeved on the reciprocating screw rod (73), and the bottom surface of the moving seat (75) and the side surface of the moving frame (5) are in contact with each other; and the sound source (76) is fixed on the moving seat (75).

4. A test device for a vocoder according to claim 2, characterized in that: The inner surface of the outer cylinder (61) and the outer surface of the inner rod (62) are in contact with each other.

5. A test device for a vocoder according to claim 2, characterized in that: A handle is fixed to the top end of the inner rod (62).

6. A test device for a vocoder according to claim 3, characterized in that: The motor (3) and the gear ring (72) are coaxially arranged.

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