Transference & Retrieval of Pulse-code modulation Audio over Short Messaging Service
This addresses a specific technical limitation in mobile communication for users needing voice transmission via SMS, but it is incremental as it builds on existing compression techniques.
The paper tackled the problem of transferring voice over SMS, which is text-based, by converting PCM audio to characters and compressing them with Huffman coding, achieving a method that enables voice transfer through SMS.
The paper presents the method of transferring PCM (Pulse-Code Modulation) based audio messages through SMS (Short Message Service) over GSM (Global System for Mobile Communications) network. As SMS is text based service, and could not send voice. Our method enables voice transferring through SMS, by converting PCM audio into characters. Than Huffman coding compression technique is applied in order to reduce numbers of characters which will latterly set as payload text of SMS. Testing the said method we develop an application using J2me platform