Sound equipment is composed of a sound source (music playback device, pickup device, or microphone), control device (analog or digital mixer), audio processor (previously used peripheral devices such as effectors, equalizers, voltage limiters, frequency dividers, signal distributors, delay devices, and a digital system controller that integrates the above functions), power amplifier (power amplifier), and speaker. The above equipment is used in series with various types of wires and cables
System composition
1. Sound source (music playback device, pickup device, i.e. microphone)
2. Control equipment (analog mixer, digital mixer, digital audio media matrix, AV digital management center)
3. Peripheral equipment (processor, equalizer, voltage limiter, frequency divider, exciter, delayer, effector, feedback suppressor)
4. Restoration equipment (speaker or speaker system, power amplifier, i.e. power amplifier)
5. Connecting wires (The above devices are connected in series with various types of wires and cables to form a unified sound system for use.)
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China