export namespace AMR {
    function decode(amr: any): Float32Array | null;
    function _decode(amr: any): Int16Array | null;
    function Decoder_Interface_init(): number;
    function Decoder_Interface_exit(state: any): void;
    function Decoder_Interface_Decode(state: any, inBuffer: any, outBuffer: any, bfi: any): void;
    namespace Mode {
        const MR475: number;
        const MR515: number;
        const MR59: number;
        const MR67: number;
        const MR74: number;
        const MR795: number;
        const MR102: number;
        const MR122: number;
        const MRDTX: number;
    }
    const SIZES: number[];
    const AMR_BUFFER_COUNT: number;
    const PCM_BUFFER_COUNT: number;
    const AMR_HEADER: string;
    const WAV_HEADER_SIZE: number;
}