The sound quality of a speaker is one of the key factors in judging its quality. Good speaker sound quality can provide clear, accurate, and natural sound effects, while poor speakers can cause distortion, noise, and other problems, affecting the user's experience. Therefore, it is very important to understand how to judge the quality of a speaker's sound.
1、 Related parameters of sound quality
The sound quality of a speaker is mainly related to the following parameters:
1. Frequency response
The frequency range that a speaker can play is one of the important indicators for judging the sound quality of a speaker. The higher the high-frequency response (referring to the highest frequency), the better the speaker can provide clear sound in the high frequency range; The lower the low-frequency response (referring to the lower lowest frequency), the more powerful the speaker can provide in the low-frequency range, making it more suitable for playing music.
2. Harmonic distortion
When a normal speaker produces sound, the information conveyed by the sound waves it produces may be lost, resulting in a decrease in sound quality. Harmonic distortion refers to a distortion situation in which a speaker's response to audio signals is not sensitive enough. After amplification, the volume difference between different frequencies is distorted, and the true and natural sound effect cannot be achieved. This distortion is related to the interference of sound wave resonance. The lower the distortion rate, the clearer the sound quality, which is closer to the original recording effect.
3. Signal to Noise Ratio
The signal-to-noise ratio refers to the ratio of the output signal of a speaker system to the noise of the system itself during operation. A higher signal-to-noise ratio means that the noise of the speaker itself is smaller, resulting in better output of clean sound. The higher the signal-to-noise ratio, the better the sound quality.
4. Input sensitivity
The relationship between the strength of the input signal and the strength of the output signal determines the sensitivity and output performance of the speaker. The higher the input sensitivity, the stronger the music expression and the better the playback effect.
The above parameters are important indicators for judging the sound quality of a speaker, and are also related to the channel design, power output, current amplification, and other aspects of the speaker chip.
2、 How to judge the sound quality of a speaker
1. Trial listening
The sound quality of a speaker cannot rely solely on its specifications. Only by truly listening to it can one judge its quality. It is best to hear familiar music and determine whether the speaker can accurately reproduce the details of the music, balance high, medium, and low frequencies, and other factors.
2. Measurement parameters
Before purchasing, you can look for some professional measuring equipment to test the frequency response range, harmonic distortion and other parameters of the speaker, and compare different models of speakers.
3. International standard analysis
By referring to the official audio websites and test reports of various brands, as well as international standard test data, the sound quality level and sound field positioning of each model of speaker can be referenced.
4. Pay attention to brand reputation
Comparing prices from three different sources is not a disadvantage. When making a purchase, one should pay attention to factors such as brand reputation, professionalism, and after-sales service to avoid being deceived by unscrupulous merchants.
In summary, the quality of a speaker is basically determined by its relevant parameters, and users' purchasing decisions should be based on reasonable comparisons and careful observation and practice in order to obtain high-quality music enjoyment.
