Audio compensation with sound effect characteristic curve to adjust abnormal frequency points

An audio adjusting method, comprising:

• acquiring an audio signal to be adjusted;
• acquiring an actual sound effect characteristic curve of the audio signal to be adjusted, wherein the actual sound effect characteristic curve is a relation curve between actual values of sound effect parameters and frequency points of the audio signal to be adjusted, and the sound effect parameters comprise level values characterizing frequency response characteristics of the audio signal;
• determining, according to at least the actual sound effect characteristic curve, a set of abnormal frequency points in the actual sound effect characteristic curve;
• acquiring an audio compensation value corresponding to each abnormal frequency point in the set of abnormal frequency points, and adjusting the actual sound effect characteristic curve based on at least one audio compensation value to obtain an adjusted sound effect characteristic curve;
• and
• outputting an adjusted audio signal based on the adjusted sound effect characteristic curve,
• wherein the method further comprises:
• acquiring an audio attribute of the audio signal to be adjusted, and determining, according to the audio attribute, an audio type of the audio signal to be adjusted;
• and
• acquiring a target sound effect characteristic curve corresponding to a target audio type, wherein the target sound effect characteristic curve is a relation curve between target values of the sound effect parameters and frequency points;
• wherein the determining, according to at least the actual sound effect characteristic curve, the set of abnormal frequency points in the actual sound effect characteristic curve comprises:
• performing, for each frequency point corresponding to the actual sound effect characteristic curve, steps of:
• determining, according to the target sound effect characteristic curve and the actual sound effect characteristic curve, a difference between an actual value and a target value of a sound effect parameter corresponding to the frequency point;
• and
• determining, in a case that the difference between the actual value and the target value of the sound effect parameter corresponding to the frequency point is greater than a preset difference threshold, the frequency point as an abnormal frequency point in the set of abnormal frequency points,
• wherein the determining, according to the audio attribute, the audio type of the audio signal to be adjusted comprises:
• determining, according to the audio attribute, a voice time length in the audio signal to be adjusted;
• determining a difference between a playing time length of the audio signal to be adjusted and the voice time length as a music time length;
• determining, according to a relation among a first ratio, a second ratio and a first preset ratio, the audio type of the audio signal to be a first type or a second type;
• wherein the first ratio is a ratio of the voice time length to the playing time length, and the second ratio is a ratio of the music time length to the playing time length.