declare module 'lamejs' { export class Mp3Encoder { constructor(channels: number, sampleRate: number, bitRate: number) encodeBuffer(left: Int16Array, right?: Int16Array | null): Int8Array flush(): Int8Array } export class WavHeader { static readHeader(data: DataView): { channels: number sampleRate: number } } const lamejs: { Mp3Encoder: typeof Mp3Encoder WavHeader: typeof WavHeader } export default lamejs } declare module 'lamejs/src/js/MPEGMode' { const MPEGMode: any export default MPEGMode } declare module 'lamejs/src/js/Lame' { const Lame: any export default Lame } declare module 'lamejs/src/js/BitStream' { const BitStream: any export default BitStream }