Anupam Achhami

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PLASMA for Vision reference monitor : What and Why

PLASMA for Vision reference monitor : What and Why

In the context of events, a vision reference monitor is typically used to provide high-quality visual feedback to speakers or presenters. When a Plasma display is used as such a monitor, it means employing a Plasma Display Panel (PDP) to serve as a high-fidelity visual reference for critical tasks like monitoring video feeds, presentations, or live camera feeds.


Speaker Monitor: What and Why

Picture of speaker monitor


In Conferences and Corporate Events

**1. *Ensuring Clear Communication*:

  • What: In a conference or corporate setting, a speaker monitor is typically a speaker positioned facing the presenter or panelists. It allows the speaker to hear their own voice clearly, as well as any other audio cues or feedback from the event’s sound system.
  • Why: Clear communication is crucial in these settings. By using a speaker monitor, the presenter can adjust their volume, pace, and tone in real-time, ensuring that their message is conveyed effectively and engagingly. This is particularly important in large rooms or auditoriums where sound can be easily lost or distorted.

**2. *Facilitating Effective Q&A Sessions*:

  • What: During Q&A sessions, a speaker monitor helps the presenter hear audience questions clearly, even in a crowded or noisy room. It can also provide a way for the speaker to hear their responses and maintain control over the conversation flow.
  • Why: Effective Q&A sessions require clear and immediate communication. By using a speaker monitor, the presenter can ensure they hear each question clearly and respond appropriately, enhancing the overall interaction with the audience and ensuring that all questions are addressed.

In Musical Events

**1. *Maintaining Performance Quality*:

  • What: In musical events, a speaker monitor is typically a wedge-shaped speaker placed on the stage facing the performers. It provides the performers with a clear mix of their own voices and instruments, helping them to stay in tune and in rhythm.
  • Why: Musicians need to hear themselves and their fellow performers accurately to deliver a cohesive and polished performance. Without a speaker monitor, performers may struggle with timing, pitch, and harmony, which can negatively impact the quality of the performance.

**2. *Preventing Feedback and Distortion*:

  • What: A speaker monitor allows performers to hear the sound directly from the stage without relying on the main PA system, which helps to minimize the risk of feedback and audio distortion.
  • Why: Feedback and distortion can be problematic in live music settings, often leading to an unpleasant experience for both performers and the audience. By using a speaker monitor, performers can hear a clean, controlled mix of sound, reducing the likelihood of these issues and allowing for a smoother and more enjoyable performance.

In both conferences and musical events, speaker monitors play a vital role in ensuring that speakers and performers can deliver their best performances, maintain clear communication, and create a positive experience for their audiences.

If you have any queries or concern, please feel free to contact me.

Delay speaker used in sound system : What and Why

A delayed (time aligned) speaker system is usually neccesary to have a more evenly distributed sound in a large room. The “delayed” speakers are positioned halfway down the room and their signal is delayed to (conversely) reduce the echo effect when there is a significant distance between speakers.


If you have any queries or concern, please feel free to contact me.

DMX 512 भनेको के हो र कसरी काम गर्छ

DMX 512 भनेको (Digital Multiplex) बहु आायामीक तरिकाले काम गर्ने पद्द्ती हो ।
डिजिटल सञ्जाल सञ्चालनको लागि एक मानक (data value) घट बढ विधि हो जुन सामान्यतया प्रकाश (Light Intensity) र अवस्था नियन्त्रण (stage controlling) गर्न प्रयोग गरिन्छ। यो मूलत light नियन्त्रण को लागि मान (value) घट बढ विधि को तरीकामा बनाइएको थियो ।

DMX 512 मा 512 वटा च्यानल हरू हुन्छन् । हरेक च्यानलको मानहरू (Value) 0 देखी 255 सम्म हुन्छ । त्यस मध्य value 128 लाइ बिचको मानिन्छ । प्रत्यक channel को प्रत्यक value ले फरक किसिमको काम (Function) गर्दछ ।

DMX 512 मा एउटा XLR आउपुट बाट 32 वटा सम्म मात्र Link गर्न सकिन्छ । त्यो भन्दा बढी गरेमा signal loss हुने, control नहुने इत्यादी हुन सक्छ । त्यसमा पनी cable को quality 100% copper छ भने मात्र 32 वटा Link गर्न हुन्छ नत्र भने बिभिन्न समस्याहरू आउन सक्छ ।

Sound Console

In sound recording and reproduction, and sound reinforcement systems, a mixing console is an electronic device for combining sounds of many different audio signals. Inputs to the console include microphones being used by singers and for picking up acoustic instruments, signals from electric or electronic instruments, or recorded music. Depending on the type, a mixer is able to control analog or digital signals. The modified signals are summed to produce the combined output signals, which can then be broadcast, amplified through a sound reinforcement system or recorded.

Mixing consoles are used in many applications, including recording studiospublic address systems, sound reinforcement systems, nightclubsbroadcastingtelevision, and film post-production. A typical, simple application combines signals from microphones on stage into an amplifier that drives one set of loudspeakers for the audience. A DJ mixermay have only two channels, for mixing two record players. A coffeehouse‘s tiny stage might only have a six channel mixer, enough for two singer-guitarists and a percussionist. A nightclub stage’s mixer for rock music shows may have 24 channels for mixing the signals from a rhythm sectionlead guitar and several vocalists. A mixing console in a professional recording studio may have as many as 96 channels.[1]

In practice, mixers do more than simply mix signals. They can provide phantom power for condenser microphonespan control, which changes a sound’s apparent position in the stereo soundfield; filteringand equalization, which enables sound engineers to boost or cut selected frequencies to improve the sound; dynamic range compression, which allows engineers to increase the overall gain of the system or channel without exceeding the dynamic limits of the system; routing facilities, to send the signal from the mixer to another device, such as a sound recording system or a control room; and monitoring facilities, whereby one of a number of sources can be routed to loudspeakers or headphones for listening, often without affecting the mixer’s main output.[2]Some mixers have onboard electronic effects, such as reverb. Some mixers intended for small venue live performance applications may include an integrated power amplifier.