Visit to the Great Hall of the National Father Memorial Hall of Taiwan

[Abstract]

This paper extracts the current situation of each stage performance system (stage hanging system, lighting system and sound system) for readers' reference.

Located in the fourth section of Ren'ai road in Taipei, Taiwan's National Father Memorial Hall integrates functions of commemoration, assembly, exhibition, performance and training, and is one of the most famous scenic spots in Taiwan. Among them, the Great Hall of the National Father's memorial hall is a "large-scale" and "multi-functional" performance space, which takes into account the diversified performances such as drama, music, dance and evening party. The 2500 seat auditorium is the first choice for many performing groups inside and outside the island. In order to provide better visual and auditory enjoyment for the audience, the museum is committed to improving the service quality of hardware and software of the city hall, and is trying to promote the cultural and art trend in the metropolitan area of Taipei through more intimate and comfortable service, so as to push the museum to another peak. This paper extracts the current situation of each stage performance system (stage hanging system, lighting system and sound system) for readers' reference.

General information of equipment in the city hall:

Total area: 2.844 square meters

Seats: 35 rows, 2.572 seats

· stage:

18.4 m (W) × 11.8 m (d)

· front desk 4m (deep)

The arc length of the abutment is 18.9 M

Frame 17.3 m (W) × 10.5 m (H)

· orchestra pit under the stage:

18.9 m (width) × 3.9 m (depth)

（5） Hanging system:

1. 25 electric lifting Suspenders

2. 5 electric light lifting Suspenders

3. Curtain: A. one red lifting curtain

B. One curtain closing in red

C. One black split back curtain

D. 1 electric sky screen

E. Red along curtain 6

F. Red wing screen 8 pairs

G. Black along the curtain 6

H. Black wing screen 7 pairs

4. 10 acoustic reflectors for concerts

5. Small movable acoustic reflector

1.8m (width) × 4m (height) 12 groups

（6） Lighting system:

1. Power supply: 750kva, 3 ∮ 4W, 220V / 380V, 60Hz

2. Auditorium lights: 200W × 212

(can be controlled by dimmer)

3. Various stage lamps: 288 sets

4. Dimmer circuit: 2.2kw × 288 circuit,

5KW × 60 circuit

5. Light controller:

A. Strand 550i 1

B. 60 loop, 1 manual control table

C. 1 spare insight 3

6. Rear light: 2 sets of storong Gladiator 3kw

7. Stage floor socket: 56 circuits

8. 10 sets of stage tower type side light frames, each group can be equipped with 4 lamps

（7） Sound system:

1. Power supply: 90KVA, 117V, 60Hz, voltage regulator

2. Total rated power output: 28680w (8 Ohm)

3. Maximum sound pressure: 108db to 118db (peak value)

4. Sound pressure distribution: ± 4dB

5. Frequency response: 40Hz ～ 16KHz ± 4dB

6. Stage microphone input socket: 114 xlr-3 type

7. High level input socket: 20 xlr-3 type

8. Audio control desk:

Department 1 of Euphonix system 5

One spare soundcraft europa72 input

One soundcraft 8000 32 input

One EMT 14 input unit

9. Playback equipment:

Three disc players for student A810

Three student a710 cassette players

10. Effect processor:

EMT 252 1

One lexicon 300

1 eventide h3000se

（8） Sound environment:

1. Static noise: (using air conditioner) ≥ 38dB (a)

2. Reverberation time: 1.3 seconds

（9） Accessory equipment:

1. Sound, lighting and tracking light room

2. Two stage supervision rooms

3. Seven dressing rooms and VIP rooms

4. Intercom equipment is available in each control room, stage supervision room, floodlight room, dressing room, catwalk and stages on both sides

5. All control rooms, stage supervision rooms, lighting rooms, dressing rooms, props rooms and excitation rooms are equipped with TV monitoring. In addition, there are two 46 inch large TV sets at the entrance of the coffee shop on the second floor for late viewers

6. Steinway & Kawai piano

7. The air conditioning capacity of the hall is 400 tons

（10） Stage standby power supply:

1. 100A, 3 ∮ 3W, 220V power board can be used if necessary

2. Additional use of 600A, 3 ∮ 4W, 220V with A.T.S

2、 Introduction to various systems and equipment of the stage:

（1） The VIP room, dressing room and stage used by the performing group.

1. VIP room: the decoration of the VIP room is full of national flavor, elegant and elegant, which can provide a place for rest and discussion for the VIPs who attend the performance or the evaluation of the competition performance. It is equipped with TV monitoring and intercom equipment, so that the indoor personnel can fully grasp the stage situation.

2. Dressing room: the dressing room is equipped with professional lighting dressing table and independent toilet, which can be provided for performers on site

A make-up and rest place is equipped with TV and walkie talkie equipment, so that indoor personnel can fully grasp the stage situation.

3. Reception room in the dressing room: the reception room in the dressing room is provided with sofa for rest, which can facilitate the performers to leave for rest, discuss the plot or accept interviews. It is equipped with TV monitoring and interphone equipment, which can make the indoor personnel fully grasp the stage situation.

4. Stage: the total area of the city hall is 2844 square meters, with 35 rows of audience seats and 2572 seats; the stage orchestra pit is 18.9 meters wide and 3.9 meters deep; the stage itself is 18.4 meters wide and the arc mouth length is 18.9 meters, plus the total width of the side platforms on both sides is about 43 meters; the stage depth is 11.8 meters, plus the front stage is 4 meters; the dance stage mirror frame is 17.3 meters wide and 10.5 meters high. The stage space is broad and moderate, and the stage hanging system, lighting system and sound system are perfect. It is very suitable for drama, music, dance, evening and other performances.

（2） Stage suspension system

1. Stage hanging system: the stage hanging system is supported by steel shed, and there are 33 electric suspenders above the stage. Among them, 14 are empty suspenders, which are used by performance groups as needed. The main suspension equipment is computer lights, performance curtain, performance props, etc.; other suspenders are fixed to hang sky curtain lamp, sound reflecting board, eyebrow screen, big screen, along screen, sky screen, National Father's statue and flag, etc. the lifting and lowering of the suspenders are controlled by the stage supervisor in the dance supervision control room by using the electric switch.

2. Operation diagram of stage hanging system:

3. All kinds of stage hanging equipment:

A. Rigid truss: the steel truss is mainly used to support the roof of the city hall, and the roof load will be transferred to the peripheral beams and columns along the steel truss. The roof part of the auditorium is a flat roof, and the part of the stage roof is a curved roof, which belong to two different structural systems.

B. Steel shed: the steel shed is supported by the roof steel truss. Although the steel shed can be used for hanging special props during the performance, it is not open to direct suspension at present in order to avoid damaging its structure and prolong its service life; the other purpose of the steel shed is to provide personnel to repair the equipment above the roof for stepping.

C. Winch and steel cable: the winch and cable are mainly operated by the winch, which is used to control the lifting and shifting of the suspender. There are 33 stage suspenders controlled by the winch (6 of which are used for other purposes). Each hoist is designed to bear 250 kg (the maximum allowable limit is 170 kg), including 5 lighting poles, 8 hanging curtains and 14 empty poles.

D. Boom and stage lamp: all kinds of props such as stage lamps, sound reflecting board, curtain and other props erected on the suspender can be lifted and moved to the appropriate position by using the suspender to provide the most appropriate demand for stage performance. At present, there are 33 stage suspenders, each designed to bear 250 kg (the upper limit is 170 kg).

E. Boom lifting console: the boom lifting console is used to control the action of the winch, so as to facilitate the lifting boom to drive various props such as curtain and lighting. The operation of the boom lifting console is controlled by the stage supervisor in the dance supervisor's control room by using a switch.

（3） Stage sound system:

1. Sound system

The sound system uses stage microphone, high-level and playback equipment to input the sound source signal, and then through the audio console, effect processor and power amplifier to complete the functions of mixing, echo, delay and signal amplification, and finally through the three channel system high-frequency loudspeaker 36 set above the front edge of the stage, on both sides and above the aisle in the first and second sections of the audience Through field measurement, the average sound pressure of the museum is 112dB, and the maximum peak value is 118db.

2. Audio system operation diagram:

3. All kinds of audio equipment:

A. Euhonix system5: the audio console has built-in automatic mixing function, variable channel echo, parametric channel assimilation device and high pass channel filter, which can smooth the sound of stage performance and provide the most beautiful three-dimensional mixing to meet the audience's hearing enjoyment.

B. Audio console (Europa 72): the audio console has built-in automatic mixing function, variable channel echo, parametric channel equalizer and channel high pass filter, which can smooth the sound of stage performance and provide the most beautiful three-dimensional mixing to meet the audience's hearing enjoyment.

C. Effect processor: the effect processor can reprocess the stereo mixing output from the audio console (front stage), provide echo, reverberation, delay and phase shift effects, and upgrade the output sound signal to a higher level.

D. Soundcraft 8000: the audio console has built-in automatic mixing function, variable channel echo, parametric channel assimilation device and high pass channel filter, which can smooth the sound of stage performance and provide the most beautiful three-dimensional mixing to meet the audience's hearing.

E. Power amplifier: the sound amplifier can amplify and polish the sound signal output from the effect processor (front stage), and then match with 36 high-frequency speakers, 64 10 inch intermediate frequency speakers and 40 18 inch low-frequency speakers of the three channel system in the city hall to output the most perfect and beautiful sound.

F. Sound reflecting board: the concert sound reflecting board or small movable sound reflecting board can be used timely to meet the needs of stage performance, and combined with the curved fixed sound reflecting board at the front edge of the stage, it can reflect the perfect sound of stage performers to every corner of the hall to meet the audience's hearing needs.

（4） Stage lighting system

1. Lighting system: there are 5 light hangers on the stage, 2 in the front stage and 3 in the rear stage. Each lamp pole is hung with 24 lamps. In addition, there is a sky curtain lamp (36 lamps suspended). The inside and outside sides of the stage are equipped with side lighting equipment. There are three surface lights above the first stage, each of which is 16, 20 and 20 lamps, which can be 47.5-50 The above lamps can be controlled by the dimmer or light console in the lighting control room to present the scene effect and atmosphere required for stage performance.

3. Various lighting equipment:

High efficiency control dimmer (strand 550 I): it can control the dimmer with multiple specification selection operation mode, the ability to adjust the changes of multiple sets of lamps, the integrated computer lamp control ability and the full tracking and backup ability of two control console (main / auxiliary) data, so as to control the lighting effect, and create the desired scene effect and atmosphere according to different scenes.

Light console (insight3): the light console has the ability to adjust the changes of multiple sets of lamps and the integrated control ability of computer lights. It can fully master the brightness, direction, color, pattern transformation and lighting effects of computer lights. It can create the desired scene effect and atmosphere according to different scenes.

Module dimming vertical cabinet system (strand gd80): modular dimming vertical cabinet, 96 groups of 2.4 kW for each vertical cabinet. The vertical cabinet system is plug-in type. This design enhances the flexibility of the system and can be expanded and upgraded. Its main purpose is to adjust the brightness of stage lighting.

· spotlight (strand alto2k): the spotlight is suitable for a short distance, and the brightness within the aperture is uniform. The size of the projection surface can be adjusted by the knob, which is suitable for large area illumination with uniform and full illumination.

Spotlight (etc series): the spotlight has a clear and sharp aperture, and the applicable distance varies according to the focus of the plano convex lens. The lamp has four shutters, up, down, left and right, which can cover the aperture according to the required shape. It is usually placed outside the stage, and the projection beam is pure and the effect is clear.

Spotlight (etc series): the spotlight has a clear and sharp aperture, and the applicable distance varies according to the focus of the plano convex lens. It has four shutters, up, down, left and right, which can cover the aperture according to the required shape. It is usually placed outside the stage, and the projection beam is pure and the effect is clear.

· strand leko: the side lampholder spotlight has a clear and sharp aperture, and the applicable distance varies according to the focus of the plano convex lens. There are four shutters on the top, bottom, left and right, which can cover the aperture according to the required shape, which is usually used to supplement the shortage of light sources on both sides.

· Spotlight: the tracking lamp is usually placed behind the auditorium and is mainly used to illuminate stressed characters or special highlighted subject matters. The opening angle of the rear light is usually smaller than that of the general spotlight, so it can project a longer distance. It is also equipped with an aperture amplifier and a variety of color filters, which can be adjusted to change the size and color at any time.

（5） Control room:

At present, each control room, stage supervision room and light tracing room are equipped with walkie talkie equipment and TV monitoring. Among them, the stage supervision room is set on the left stage to facilitate the performance control of the performance group's equipment during the performance; while the sound and light control rooms are respectively located on both sides of the auditorium. In addition to the equipment space, the control room also has special personnel stationed in the museum. The main sound control is operated in the central control room directly behind the audience, and the rear lighting room is located on both sides of the central control room.

The stage supervision room: the stage supervision room is responsible for the stage performance safety. The stage special personnel can use the boom lifting console to cooperate with the performance, and can use the indoor interphone equipment and monitoring TV to contact with the control rooms, dressing rooms and catwalks to make the performance more perfect.

Sound control room: the sound control room is responsible for the post-processing of the sound. After finishing and amplifying the front level sound signal through the sound console and amplifier, the sound signal output to the high-frequency speaker, intermediate frequency speaker and low-frequency horn of the three channel system of the city hall is the most perfect.

Central control room (main sound control room): the central control room is the main sound control hub of the stage of the city hall. The sound signals are mixed, echoed and delayed through the sound console and effect processor, providing the most beautiful three-dimensional mixing to meet the audience's hearing enjoyment.

Lighting control room: the lighting control room is the lighting control hub of the stage and auditorium of the city hall. All kinds of lamps and lanterns can be controlled by the indoor dimmer or light console. The lighting color, pattern and brightness can be timely changed to present the scene effect and atmosphere required for stage performance.