import { Filter, FilterStreamRef } from '../../../Filter';
import { Stream } from '../../../Compiler';
/**
  * 9.7 sinc
  * Generate a sinc kaiser-windowed low-pass, high-pass, band-pass, or band-reject FIR coefficients.
  *
  * The resulting stream can be used with afir filter for filtering the audio signal.
  *
  * The filter accepts the following options:
  */
export declare class AudioSinc extends Filter<AudioSincParameters> {
    outputs: FilterStreamRef<AudioSincParameters, AudioSinc>[];
    constructor(inputs?: Stream | Stream[], parameters?: AudioSincParameters);
}
export interface AudioSincParameters {
    /**
      * Set sample rate, default is 44100.
      * @aliases r
      */
    sample_rate?: string | number;
    /**
      * Set sample rate, default is 44100.
      * @aliasof sample_rate
      */
    r?: string | number;
    /**
      * Set number of samples per each frame. Default is 1024.
      * @aliases n
      */
    nb_samples?: string | number;
    /**
      * Set number of samples per each frame. Default is 1024.
      * @aliasof nb_samples
      */
    n?: string | number;
    /** Set high-pass frequency. Default is 0. */
    hp?: string | number;
    /** Set low-pass frequency. Default is 0. If high-pass frequency is lower than low-pass frequency and low-pass frequency is higher than 0 then filter will create band-pass filter coefficients, otherwise band-reject filter coefficients. */
    lp?: string | number;
    /** Set filter phase response. Default is 50. Allowed range is from 0 to 100. */
    phase?: string | number;
    /** Set Kaiser window beta. */
    beta?: string | number;
    /** Set stop-band attenuation. Default is 120dB, allowed range is from 40 to 180 dB. */
    att?: string | number;
    /** Enable rounding, by default is disabled. */
    round?: string | number;
    /** Set number of taps for high-pass filter. */
    hptaps?: string | number;
    /** Set number of taps for low-pass filter. */
    lptaps?: string | number;
    [key: string]: string | number;
}
/**
  * 9.7 sinc
  * Generate a sinc kaiser-windowed low-pass, high-pass, band-pass, or band-reject FIR coefficients.
  *
  * The resulting stream can be used with afir filter for filtering the audio signal.
  *
  * The filter accepts the following options:
  */
export declare function audioSinc(inputs?: Stream | Stream[], parameters?: AudioSincParameters): AudioSinc;