The Web Audio API provides a convenient set of RampToValue methods to gradually change the value of a parameter, such as linearRampToValueAtTime and exponentialRampToValueAtTime.While the transition timing function can be picked from built-in linear and exponential ones (as above), you can also specify your own value curve via an array of values using the setValueCurveAtTime function.Applying a simple filter effect to a sound #An audio graph with a BiquadFilterNodeThe Web Audio API lets you pipe sound from one audio node into another, creating a potentially complex chain of processors to add complex effects to your soundforms.One way to do this is to place BiquadFilterNodes between your sound source and destination. This type of audio node can do a variety of low-order filters which can be used to build graphic equalizers and even more complex effects, mostly to do with selecting which parts of the frequency spectrum of a sound to emphasize and which to subdue.Supported types of filters include:Low pass filterHigh pass filterBand pass filterLow shelf filterHigh shelf filterPeaking filterNotch filterAll pass filterAnd all of the filters include parameters to specify some amount of gain, the frequency at which to apply the filter, and a quality factor. The low-pass filter keeps the lower frequency range, but discards high frequencies. The break-off point is determined by the frequency value, and the Q factor is unitless, and determines the shape of the graph. The gain only affects certain filters, such as the low-shelf and peaking filters, and not this low-pass filter.Let's setup a simple low-pass filter to extract only the bases from a sound sample:
Graphic Equalizer Studio Crack.epub
2ff7e9595c
コメント