Audio processing application for windows
An audio enhancement technique comprises an audio source. The audio source is split into at least two branches and each of the branches is processed by a filter bank. Outputs from the filer banks are summed up to create a summed output signal. The summed output signal is splitting into two or more segments to create a split summed output signal. The split summed output signal is processed by one or more audio processing modules. Audio processed by each of the audio processing modules is summed to create a summed audio processed signal. The summed audio processed signal is provided to a balance module to select a balance mix of the audio source and the summed audio processed signal to create a balanced mixed audio signal. The balanced mixed audio signal is fed to a stereo output gain module for gain adjustment to create a gain adjusted stereo signal. The phase of the gain adjusted stereo signal is optionally changed in an amount between zero and 180 degrees to create a final output signal, which is sent to a playback device selected by user.
1. An audio enhancement technique comprising:
an audio source;
splitting the source audio into at least two branches;
processing each of the branches by a filter bank;
summing output signals from each filter bank and creating a summed output signal;
splitting the summed output signal into two or more segments to create a split summed output signal;
processing the split summed output signal by at least two audio processing modules;
summing the audio processed by each of the audio processing modules to create a summed audio processed signal;
providing the summed audio processed signal to a balance module to select a balance mix of the audio source and the summed audio processed signal to create a balanced mixed audio signal;
providing the balanced mixed audio signal to a stereo output gain module for gain adjustment to create a gain adjusted stereo signal;
changing the phase of the gain adjusted stereo signal in an amount between zero and 180 degrees and creating a final output signal
feeding the final output signal to a playback device selected by user.
2. The audio enhancement technique of claim 1 , wherein the number of branches is four and the number of filter banks is four.
3. The audio enhancement technique of claim 2 , wherein the number of segments is six.
4. The audio enhancement technique of claim 1 wherein each filter block can be set to operate in different areas as well as different dynamics as the following controls 1) Mute; 2) BPF (digital Band Pass Filter); 2A BP Center—selects the harmonic content and center frequency for this filter; 2B BP (Band Pass) Width—selects the range of frequencies from the center out; 3) Phase—effects the phase of the BPF dynamically; 3A Amount—amount of phase shift will be applied to the audio; 3B Attack—how fast the phase shift starts; 3C Release—the time allowed for the phase shift to complete and restart when a change is detected; 4) LPF (digital Low Pass Filter)—sets the upper limit of frequency content that is allowed to pass on to the next module in this Filter Block; 4A LP (Low Pass) FC (Filter Calculator)—selects the upper frequency limit for this digital filter; 5) Dyn AP—dynamic digital All Pass Filter 1 and Envelope Follower—follows the center frequency set by the FC control dynamically; 5A Attack—how fast the envelope follower reacts to amplitude changes after the release time; 5B Release—how much time before the envelope follower can restart; 5C Amount—the total amount of phase shift (plus and minus) that is dynamically allowed to the audio passing through this section; FC—selects the center frequency for this filter; 6) AP2—digital All Pass Filter 2; 6A FC—selects the center frequency for this filter; 7) Invert—flips the phase to a negative 180 degrees for the output of this entire filter block; 8) FB (Feedback) # Gain—sets the final amplitude (master) for this entire filter block.
5. The audio enhancement technique of claim 1 , wherein the audio processing modules relate to one or more of the following modules: 1) Tube module is the amount of digitally simulated tube harmonics that are added into the audio path from the source, where there is a Threshold adjustment control which sets the initial level where the Tube will start processing and the level, or amount is on the main page; 2) The Expander module to dynamically add some user selected harmonic content back into the audio path; 3) Balance—a balance of the original audio that enters this module and the effected audio in the module for a blend of the two; 4) UMPH (bass enhancer) adds more bass content to the audio passed through this module; 5) X-FAD (Cross fader), which routes a small amount of audio from one side to the other; 6) EQ (Equalizer) this module has three settings, No Equalizer, 15 Band, or 31 Band, where the Equalizers are phase coherent and set to be ISO (International Organization for Standardization) compliant centers and the Equalizers both have a range of −50 dB or +25 dB of adjustment per frequency center.