Sometimes you need to check the sound quality on the speakers. However, not everyone knows how to understand exactly how to do this. Therefore, it is worth more carefully understanding this issue.
Ways to check speaker sound quality
Sound quality testing is relevant for any speaker system. It can be done in two main ways:
- Online tests
- test audio track.
The first option is suitable for a quick check of the performance of the system speakers. The border of low, medium and high frequencies is checked using a test disk that reproduces different types of frequencies. If the system consists of two columns, then one of the simple right-left tests is used.
For example, the “knock on door” test allows you to determine which speaker does not work by knocking alternately on each speaker. The “sound signal” test is based on a signal in the increasing frequency range from 20 Hz to 10,000 Hz in both speakers. If they work properly, the sound will be the same in both speakers.
Reference! The human ear perceives frequencies in the range of 20-20000 Hz.
The second option involves listening to a test audio track to analyze the entire range. When the system is turned on at 60% of the declared power level, all instruments should be heard without distortion. The best are the tracks with the recording of instrumental music in a wide range with maximum bitrate quality.
How to choose the right track for verification
There is no single correct track for verification. Everyone can choose their own, following the basic rules. The test track should have the highest quality sound version, at least Flac.
The best ones to check are:
- classical music performed by a symphony orchestra, which leads in frequency characteristics and perception;
- albums of instrumental groups (for example, the Swiss group "Yello", working in the genre of electronic music);
- sound design records;
- classic rock bands (Led Zeppelin, Queen, The Beatles).
Tracks with the recording of such music allow you to check the dynamic range and the amplitude-frequency response (AFC).
Attention! Significant quality criteria for the speakers are the width of the range and clear detail of all sounds.
Verification can be done using the FSQ professional test disc. Sound assessment is based on the subjective-statistical method. The disc is intended for professional experts, but also accessible to experienced listeners. The method includes 15 criteria for evaluating sound quality.
Checking the sound quality of the speakers: step by step
Analysis of the sound quality of the speakers includes a sequential check of all the speakers:
Step 1. Check the bass reflex, improving the sound of low frequencies. Turn on the test track, cover the speaker with a book or hand. During normal operation, the sound of bass instruments (bass, bass trumpet) will become quieter.
Step 2. Testing the woofer using the "Sound Track" with an increasing frequency range of 20-2000 Hz. At a low frequency range of 20-30 Hz, the working speaker begins to vibrate. If this does not happen, the frequency is gradually increased to the value at which vibration begins. Determine the actual operating value of the bass.
Step 3. Check the midrange speaker by turning on the test with instrumental or classical music. Mid frequencies are responsible for the volume and purity of sound. The performance of the speaker is evaluated by an individual assessment of listening. The speaker should reliably transmit the sound of all musical instruments (from violin to drum).
Step 4. Checking the treble speaker. Use the same test track with classical music. Cover the column with a book or hand. During normal operation, sound quality deteriorates.
Reference! The high frequency range is in the range of 5000-20000 Hz.
Step 5. Check the power of the entire system. Depending on the manufacturer, the peak PMPO or nominal RMS may be indicated. In the first case, the sound will distort at maximum load, and in the second, the system will work without distortion even at maximum load.
Checking sound quality is not so difficult. It is important to follow all the rules and recommendations.
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