METHOD AND DEVICE FOR OPTIMIZING AUDIO QUALITY
A computer-implemented method is disclosed for enhancing quality of an audio source. The method comprises receiving control information; receiving an initial signal from the audio source; and generating a dynamic control signal based on the control information. The control information includes attack, release, length, and gain parameters.
1 . A computer-implemented method for enhancing quality of an audio source, the method comprising:
receiving control information;
receiving an initial signal from the audio source; and
generating a dynamic control signal based on the control information, wherein the control information includes attack, release, length, and gain.
2 . The method of claim 1 , further comprising:
duplicating the initial signal into a plurality of signals, each dedicated to be processed in a specific frequency range different from that of the other signals.
3 . The method of claim 2 , wherein the plurality of signals comprises four duplicated signals.
4 . The method of claim 1 , further comprising:
monitoring the amplitude of the initial signal; and
modifying the amplitude of the initial signal according to the gain control information.
5 . The method of claim 4 , further comprising:
shifting the phase in the control signal according to the control signal itself.
6 . The method of claim 5 , wherein the magnitude of the dynamic phase shift is determined proportionally within a range.
7 . The method of claim 5 , further comprising:
flipping the dynamically phase-shifted signal in phase by 180 degree.
8 . The method of claim 1 , further comprising:
changing the phase relationship among various frequencies of the initial signal to compensate for phase anomaly.
9 . The method of claim 5 , further comprising:
adding gain to the amplitude of the dynamically phase-shifted signal, wherein the gain varies from zero to the full amplitude thereof.
10 . The method of any of claims 2 and 5 , further comprising:
mixing the dynamically phase-shifted signal with the plurality of signals that have dynamically shifted phases.
11 . The method of claim 1 , further comprising:
filtering out frequencies of the initial signal above a high frequency figure.
12 . The method of claim 1 , further comprising:
filtering out frequencies of the initial signal below a low frequency figure.
13 . The method of any of claims 11 and 12 , further comprising:
receiving user input to determine the high and low frequency figures.
14 . The method of claim 5 , further comprising:
changing the phase relationship among various frequencies of the dynamically phase-shifted signal to compensate for phase anomaly.
15 . The method of claim 5 , further comprising:
displaying the amplitude of the dynamically phase-shifted signal.
16 . The method of claim 5 , further comprising:
controlling threshold of the dynamically phase-shifted signal for simulating tube harmonics at different levels; and
controlling gain to the dynamically phase-shifted signal.
17 . The method of claim 16 , further comprising:
receiving user input to determine whether to bypass tube simulating of the dynamically phase-shifted signal.
18 . The method of claim 16 , further comprising:
feeding back output level of the dynamically phase-shifted signal to adjust gain for its input.
19 . The method of claim 18 , further comprising:
adding gain to the amplitude of the gain-adjusted, phase-shifted signal.
20 . The method of claim 5 , further comprising:
setting a center frequency of the dynamically phase-shifted signal for processing; and
further shifting the phase of the dynamically phase-shifted signal according thereto.
21 . The method of claim 20 , wherein the center frequency includes 50 Hz and 110 Hz.
22 . The method of claim 5 , further comprising:
selecting an amount of delay to create a special effect on the dynamically phase-shifted signal.
23 . The method of claim 5 , further comprising:
dividing an audio signal from the audio source into two identical initial signals; and
blending one of the initial signals with two dynamically phase-shifted signals that result from dynamically phase-shifting of the two initial signals.
24 . The method of claim 23 , further comprising:
controlling the output magnitude of the dynamically phase-shifted signals according to their input amplitude, respectively; and
adding gain to the output magnitude to create harmonic effect.
25 . The method of claim 24 , wherein the gain is predetermined as 3% of the input amplitude.
26 . The method of claim 1 , further comprising:
adjusting a range of frequencies symmetrically centering a central frequency of the control signal.
27 . The method of claim 26 , wherein the central frequency includes:
60 Hz, 170 Hz, 310 Hz, 600 Hz, 1 kHz, 3 kHz, 6 kHz, 12 kHz, 14 kHz, and 16 kHz.
28 . The method of claim 1 , further comprising:
adjusting gain up or down to the control signal to generate the final output.
29 . A computer program product for enhancing quality of an audio source, encoded on a computer-readable medium, operable to cause one or more processors to perform operations comprising:
receiving control information;
receiving an initial signal from the audio source; and
generating a control signal based on the control information, wherein the control information includes attack, release, length, and gain.
30 . The product of claim 29 , wherein the operations further comprise:
duplicating the initial signal into a plurality of signals, each dedicated to be processed in a specific frequency range different from that of the other signals.
31 . The product of claim 30 , wherein the plurality of signals include four duplicated signals.
32 . The product of claim 29 , wherein the operations further comprise:
monitoring the amplitude of the initial signal; and
modifying the amplitude of the initial signal according to the gain control information.
33 . The product of claim 32 , wherein the operations further comprise:
shifting the phase in the control signal according to the control signal itself.
34 . The product of claim 33 , wherein the magnitude of the dynamic phase shift is determined proportionally within a range.
35 . The product of claim 33 , wherein the operations further comprise:
flipping the dynamically phase-shifted signal in phase by 180 degree.
36 . The product of claim 29 , wherein the operations further comprise:
changing the phase relationship among various frequencies of the initial signal to compensate for phase anomaly.
37 . The product of claim 33 , wherein the operations further comprise:
adding gain to the amplitude of the dynamically phase-shifted signal, wherein the gain varies from zero to the full amplitude thereof.
38 . The product of any of claims 30 and 33 , wherein the operations further comprise:
mixing the dynamically phase-shifted signal with the plurality of signals that have dynamically shifted phases.
39 . The product of claim 29 , wherein the operations further comprise:
filtering out frequencies of the initial signal above a high frequency figure.
40 . The product of claim 29 , wherein the operations further comprise:
filtering out frequencies of the initial signal below a low frequency figure.
41 . The product of any of claims 39 and 40 , wherein the operations further comprise:
receiving user input to determine the high and low frequency figures.
42 . The product of claim 33 , wherein the operations further comprise:
changing the phase relationship among various frequencies of the dynamically phase-shifted signal to compensate for phase anomaly.
43 . The product of claim 33 , wherein the operations further comprise:
displaying the amplitude of the dynamically phase-shifted signal.
44 . The product of claim 33 , wherein the operations further comprise:
controlling threshold of the dynamically phase-shifted signal for simulating tube harmonics at different levels; and
controlling gain to the dynamically phase-shifted signal.
45 . The product of claim 44 , wherein the operations further comprise:
receiving user input to determine whether to bypass tube simulating of the dynamically phase-shifted signal.
46 . The product of claim 44 , wherein the operations further comprise:
feeding back output level of the dynamically phase-shifted signal to adjust gain for its input.
47 . The product of claim 46 , wherein the operations further comprise:
adding gain to the amplitude of the gain-adjusted, phase-shifted signal.
48 . The product of claim 33 , wherein the operations further comprise:
setting a center frequency of the dynamically phase-shifted signal for processing; and
further shifting the phase of the dynamically phase-shifted signal according thereto.
49 . The product of claim 48 , wherein the center frequency includes 50 Hz and 110 Hz.
50 . The product of claim 33 , wherein the operations further comprise:
selecting an amount of delay to create a special effect on the dynamically phase-shifted signal.
51 . The product of claim 33 , wherein the operations further comprise:
dividing an audio signal from the audio source into two identical initial signals; and
blending one of the initial signals with two dynamically phase-shifted signals that result from dynamically phase-shifting of the two initial signals.
52 . The product of claim 51 , wherein the operations further comprise:
controlling the output magnitude of the dynamically phase-shifted signals according to their input amplitude, respectively; and
adding gain to the output magnitude to create harmonic effect.
53 . The product of claim 52 , wherein the gain is predetermined as 3% of the input amplitude.
54 . The product of claim 29 , wherein the operations further comprise:
adjusting a range of frequencies symmetrically centering a central frequency of the control signal.
55 . The product of claim 54 , wherein the central frequency includes:
60 Hz, 170 Hz, 310 Hz, 600 Hz, 1 kHz, 3 kHz, 6 kHz, 12 kHz, 14 kHz, and 16 kHz.
56 . The product of claim 29 , wherein the operations further comprise:
adjusting gain up or down to the control signal to generate the final output.