Classification of Mixers in Audio Systems

THE ROLE OF THE MIXER IN A SOUND SYSTEM

In professional sound systems, a mixer is an indispensable piece of equipment. The mixer receives signals from various audio sources, allowing technicians or users to process and adjust them for optimal sound output. For example, in professional recording studios, after recording vocals and music, the mixer blends and adjusts them to create a great song. For home karaoke systems, a mixer helps to harmonize vocals and make them more appealing to listeners.

PRINCIPLES OF OPERATION OF A MIXER SYSTEM

Basically, the operating principle of a mixer is as follows:

• The receiver picks up signals from microphones, musical instruments, or other audio sources. These signals are then transmitted to the mixer for processing.
• The mixer receives the signals and begins adjusting, increasing or decreasing the volume to produce the desired sound for the listener.
• These signals, after processing, are transmitted to other adjustment devices for editing. Then they are sent to the power amplifier and then to the speakers.

CLASSIFICATION OF MIXERS IN AUDIO SYSTEMS

Each type of mixer has different operating methods and intended uses. Therefore, here are two ways to classify mixers:

1. Classification based on operating technique

- Analog mixer: This type is commonly used in professional recording studios. Analog mixers are large and bulky, but in return, they offer excellent sound processing quality.

- Analog mixers operate using digital technology: this type of mixer combines digital signals, which are used to modify audio signals, with the principles of analog technology to process the signal path.

- Digital mixer: The signal paths of this mixer are completely digitized, including signals from microphones and electric instruments using analog signals, using digital technology and DSP principles (similar to a computer program or software) to compose audio signals. This mixer has a compact design and processes signals quickly and simply.

2. Classification based on usage needs

Mixers can also be classified according to their intended use, such as: mixers for karaoke, studio mixers, and mixers specifically for live performances. In reality, the prices of these types will vary, but they all share the same operating principle.

NOTES ON USING A MIXER

When buying or renting a mixer, it's essential to clearly define your intended use to choose the right type, as each type has different audio processing capabilities and price points. For example:

• Mixer for karaoke system: most mixers for karaoke systems have fairly simple requirements.
• Mixers for weddings: these have higher requirements, needing careful selection in terms of technical specifications and price.
• Stage sound system: You should choose a digital mixer equipped with all the modern features to effectively handle performances on stage.
• Studio sound system: you should consider choosing an analog mixer to improve sound quality.

REFER TO THE BEST MIXER BRANDS CURRENTLY ON THE MARKET

- Yamaha Mixers: Yamaha mixers are affordable yet offer guaranteed quality and are a trusted choice for many. Some notable models from the brand include: Yamaha MG24/14FX mixer, Yamaha MG82CX mixer, Yamaha MG20XU mixer, etc.

- Soundcraft Mixers: Soundcraft mixers are more expensive than Yamaha mixers, but their mixing and amplification capabilities are quite professional, making them suitable for karaoke systems and auditorium sound systems. Some notable models from the brand include: Soundcraft GB8/24 Mixer, Soundcraft MFXi12 Mixer, Soundcraft FX16ii Mixer, etc.

- Dynacord Mixers: This is one of the high-end mixer brands with many outstanding features and highly rated sound processing and reproduction capabilities. The control knobs are flexible and robust, and the mixer design is modern and easy to use. Some notable mixers from the brand include: Dynacord CMS 2200, Dynacord CMS 1600, Dynacord CMS 1000, etc.

- Peavey Mixers: This type of mixer integrates multiple inputs, offers crisp, smooth, and clear sound adjustment, and effectively filters out background noise and interference. That's why mixers from this brand are loved and used by many. Some notable mixers from the brand include: Peavey PV 14 USB Mixer, Peavey FX2-16 Mixer, Peavey 16FX Mixer, Peavey F4-USB Mixer, etc.

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