M3Recorder: a MP3 encoding based recorder
نویسندگان
چکیده
This paper presents the design of the prototype of a MP3 based recorder: the M3Recorder. In this device, the MP3 standard encoding technique is used to compress the registered data. Data compression is the way to reduce storing requirements while preserving audio quality. MP3 encoded data can be fitted into an affordable amount of memory, and makes possible the real time wireless transmission of recorded data. The M3Recorder is conceived as a portable device. Hence, integration and low power consumption become strong design constraints.
منابع مشابه
Parallelizing MPEG Video Encoding using Multiprocessors
Many computer applications are currently using digital video. Recent advances in digital imaging and faster networking infrastructure made this technology very popular, not only for entertainment, but also in health and education applications. However, high quality video requires more storage space and communication bandwidth than traditional data. To deal with this problem, most of the digital...
متن کاملA Multimedia Offline Cell Phone System For English Language Learning
Among mobile computing devices, cell phones are the most wide spread devices and are available in the hands of almost every university student. Other than being portable phones, many are equipped with functionalities including internet access, mp3/mp4 player, digital camera video recorder etc. and can run multimedia content. These features make them attractive as educational tools as well. In t...
متن کاملImprovement to the Data Logging Capability of a Cough Monitoring System
Data logging capability of a previously developed self contained cough recorder using an accelerometer as the sensing element is improved by using a secure digital memory card for later retrieval on a computer. Firmware is developed to enhance the fimctionality of the cough recorder. Existing libraries are modified for increased write rates. Increased writing speed allows 8-bit sampling at rate...
متن کاملRobust Audio Watermarking for Copyright Protection
This paper introduces an audio watermark encoding system that is robust to commonly used audio compression techniques such as MP3, AAC and OGG. The watermark is embedded by applying MPEG Layer 2 Model 2 psychoacoustic masking in an iterative way. The decoding is performed by using a correlation based blind decoding algorithm supported via a wavelet denoising module. Unlike most of the existing ...
متن کاملA Shift-Recompression-Based Approach to AAC Audio Forgery Detection
Advanced Audio Coding (AAC), a standardized lossy compression scheme for digital audio, which was designed to be the successor of the MP3 format, generally achieves better sound quality than MP3 at similar bit rates. While AAC is also the default or standard audio format for many devices and AAC audio files may be presented as important digital evidences, the authentication of the audio files i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001