There are different watermark embedding methods invented for digital media which contains lot of watermarking algorithms for text, image, audio, and video. In this paper focus is on audio watermarking part of digital media. Here we are describing a technique for embedding digital watermarks into digital audio signals. On audio wave signal apply quantization, LSB destruction, DCT and inverse of it. The key concept for proposed work is using the watermark from the original audio sample itself. The advantage of doing this is to avoid the excess raw data. The result of proposed work is compared with Noriega method, shows better performance for proposed work.