In the work of public broadcasting, we will encounter many equipment instructions in English. If you don't know the least professional English of some industries, you will encounter many difficulties in your engineering work! Here is a collection of professional English related to the industry to help you get through the difficulties easily!

 

Public address system (PA)

Oltage voltage

Amplifier

Voltage amplifier

Speaker, speaker

Ceiling Speaker

Aux. = auxiliary

Aux.return auxiliary return

Aux.send assisted delivery

Balance

Bus, common

Clip clipping

Cue prompt, monitor

Direct (output) Jack

Effect effect

EQ equalizer

Fader attenuator, pusher

Flowback

Gain, amplifier

Group group

HF = hightfrequency

HP = headset = phones

Ins. = insert, also known as out and in

Level

LF = low mid frequency

Limit limit

Line input socket

LMF = low frequency

Lowcut low cut (cut frequency components below 100Hz)

L-R = left right

Mainsum mixed mono

Master master

Matrix matrix

Meterasign header setting

MF = mid frequency

MHF = mid high frequency

Mic. = microphone jack (commonly known as microphone or microphone)

Mix mix

frequency response

It refers to the relationship between microphone output and frequency. It refers to the change value of output voltage measured by microphone at a fixed sound pressure of a frame and different frequencies.

Directivity

The directivity of microphone refers to the ratio of the sensitivity of microphone in a certain direction (2 angles) to the maximum sensitivity (o degree) at a specified frequency.

CD

CD is the abbreviation of compact disc: usually refers to a small digital audio record system that uses laser to pick up sound signals

CD -- ROM

It is to record the software of the computer to Cd in a specific format.

CD -- V disc

It is a CD-ROM with music and some still pictures, also known as a CD-ROM with pictures and texts.

Cd-v disc

In addition to recording the same audio signal as CD, there is also 5min image signal.

CD-I disc

Is an interactive or CD-ROM, or dialogue CD-ROM. The information recorded on the CD can be exchanged with users.

CD -- R CD

It is a one-time recording disc, also known as additional recording disc, which is a blank disc provided to users. Users can use CD to record audio-visual or graphic information. After one-time recording, they can't erase it as a permanent record.

MD disc

It is a kind of magnetic disc, which can record and play repeatedly. The straight longitude is 64mm. When recording, add a magnetic field above and a laser beam below. There are information reading windows at the top and bottom.

MPEG

Digital sound and image compression coding technology.

Peak music output power (PMPO)

It refers to the maximum music power that can be output by the power amplifier when the volume and tone of the power amplifier are maximized without calculating the distortion.

reverberation time

It is an important parameter to measure the quality of ten thousand tones. Its length has a great influence on the auditorium listening. It is defined as: stop making sound after reaching the steady-state sound field. The sound attenuation is 60dB. The time experienced is recorded as (60) in seconds.

Maximum pressure level

It refers to the highest steady-state quasi peak sound pressure level produced by the sound reinforcement system at the auditorium. The so-called quasi peak sound pressure level is the sound pressure level expressed by the effective value of the steady-state simple harmonic signal sound pressure with the same peak value for the non harmonic waveform sound.

Transmission frequency characteristics

When the amplification system reaches the highest gain, the average value of the steady-state sound pressure at each audience level in the hall is relative to the amplitude frequency response of the sound pressure or the input voltage of the amplification equipment at the microphone of the amplification system.

Maximum available gain

In the hall, the amplification system will generate the gain when the critical gain of per unit feedback self excitation minus 6dB.

Transmission gain

It refers to the difference between the average steady-state sound pressure level at each auditorium and the sound pressure level at microphone of sound reinforcement system when the maximum available gain of sound reinforcement system is achieved.

sound field normniformity

It is the difference of steady-state sound pressure level at each auditorium when there is sound reinforcement in the auditorium.

Haas effect

The listener only pays attention to the direction of the first arriving sound and ignores the direction of the successive short delay sound, that is, the sound arriving within 30ms will mix with the first sound, which is called "Haas effect"