A frequency response curve is used by stereo component manufacturers to determine the quality of sound reproduction. It shows the amplitude over frequency, with the vertical axis representing sound level in decibels and the horizontal axis representing frequency in hertz. Bandwidth is the highest to lowest frequency signal output demonstrated by a component, and the fo is the peak of the curve where the actual bandwidth is noted. A high fidelity amplifier usually has a frequency response of 20Hz to 20,000Hz within about one dB. The specific numbers indicated by the frequency response curve are not as important as the variation of the response from frequency to frequency.
To get the most enjoyment out of your stereo speakers, amplifier and microphone, they must accurately reproduce the frequency of sound. The stereo component manufacturer will often use a frequency response curve to determine the bandwidth and upper and lower frequency limits of specific components to ensure sound reproduction quality based on the visual results of a system’s response to input in frequency.
The frequency response curve is a visual representation of the quality of the amplitude over frequency generated by specific components. The graph representing this curve will have a vertical axis and a horizontal axis. The vertical axis is usually labeled the level of sound, also called the amplitude, in decibels (dB), while the horizontal axis is labeled the frequency, the vibration that is captured by the ear and measured in hertz (Hz).
Frequency is the number of sound waves that pass through a fixed receptor, such as the ear, in a given period of time. This can also be called a loop. A loop response is also a measurement represented by a frequency response curve. It is a determination of how well individual component circuits handle constant frequency changes at specific, constantly maintained amplitudes.
Bandwidth is the boundary or band that marks the highest to lowest frequency signal output demonstrated by a particular component. The fo in a frequency response curve is the peak of the curve, where the actual bandwidth is noted and compared to the designed bandwidth of the component. If the effective bandwidth is not up to the design, the frequency response of the component can be improved by using a digital or analog filter.
A high fidelity amplifier usually has a frequency response of 20Hz to 20,000Hz within about one dB. The human ear can normally detect audio frequencies in that specific range with a dB representing loudness or amplitude. The system should be able to amplify all frequencies in that range.
The specific numbers indicated by the frequency response curve are not as important as the variation of the response from frequency to frequency (eg high frequency to low frequency and vice versa). Acceptable frequency response does not mean accurate sound reproduction, only that the tested component meets basic frequency response requirements. This response tells the tester that the component will accept an input signal and generate a response. The frequency response curve, however, does not define actual audio quality.
Protect your devices with Threat Protection by NordVPN
