import { Observable } from 'rxjs';
import { Easings } from '../utils/transitions/easings';
export interface FadeableChannel {
    /** Name of the channel */
    readonly name$: Observable<string>;
    readonly faderLevel$: Observable<number>;
    readonly faderLevelDB$: Observable<number>;
    fadeTo(targetValue: number, fadeTime: number, easing: Easings, fps?: number): Promise<void>;
    fadeToDB(targetValueDB: number, fadeTime: number, easing: Easings, fps?: number): Promise<void>;
    setFaderLevel(value: number): void;
    setFaderLevelDB(dbValue: number): void;
    changeFaderLevel(offset: number): void;
    changeFaderLevelDB(offsetDB: number): void;
}
export interface PannableChannel {
    readonly pan$: Observable<number>;
    setPan(value: number): void;
    changePan(offset: number): void;
}
export interface PostProcessableChannel {
    /** PRE/POST PROC state of the channel (`false` for PRE PROC, `true` for POST PROC) */
    readonly postProc$: Observable<boolean>;
    setPostProc(value: boolean): void;
    postProc(): void;
    preProc(): void;
}