/**
 * Audio effects applied to generated speech: a filter preset, perceived distance, a reverb
 * environment, a background noise bed, and stereo panning. Leave every field at its default
 * to get unprocessed audio.
 */
export interface EffectsSpecInput {
    /** ID of a filter preset that colors the voice, such as `phone` or `old_radio`. List valid IDs with `GET /v1/audio-effects/catalog`. */
    filterPresetId?: string;
    /** How far the speaker sounds from the microphone, from 0 (close, unchanged) to 1 (far). Higher values roll off low and high frequencies and, when an environment is set, shift the balance from the dry voice toward the reverb. */
    distance?: number;
    /** ID of a reverb environment that places the voice in a space, such as `small_room` or `hall`. List valid IDs with `GET /v1/audio-effects/catalog`. Reverb is rendered in stereo and adds a tail of up to several seconds after the speech ends. */
    environmentId?: string;
    /** ID of a background noise bed looped under the voice, such as `cafe` or `keyboard`. List valid IDs with `GET /v1/audio-effects/catalog`. */
    backgroundNoiseId?: string;
    /** How much of the voice feeds the reverb, from 0 (none) to 1 (full). Only applies when `environment_id` is set; 0 turns the reverb off. */
    sendLevel?: number;
    /** Stereo position of the voice, from -1 (hard left) through 0 (center) to 1 (hard right). Only the voice is panned; reverb and background noise stay centered. */
    pan?: number;
}