Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)
Tags: digital audio watermarking methods results sol, digital audio watermarking methods results and solutions, digital audio watermarking software, digital audio watermarking wavelet domain, digital audio watermarking wikipedia, digital audio watermarking and its application in multimedia database, digital audio watermarking techniques and technologies, digital audio watermarking techniques technologies, digital audio watermarking ppt, digital audio watermarking techniques technologies applications benchmarks,
Ask More Info Of  A Seminar Ask More Info Of A Project Post Reply  Follow us on Twitter
10-03-2010, 08:30 PM
Post: #1
digital audio watermarking
please send me seminar report on DIGITAL DUDIO WATERMARKING to email:hsyesh[at]

Please Use Search wisely To Get More Information About A Seminar Or Project Topic
11-03-2010, 03:33 PM
Post: #2
RE: digital audio watermarking
Digital Audio Watermarking
Digital watermarking is a technology which allows a secret message to be hidden in a computer file, without the detection of the user.Digital audio watermarking involves the concealment of data within a discrete audio file. Intellectual property protection is currently the main driving force behind research in this area though there are a lot of other applications. To combat online music piracy, a digital watermark could be added to all recording prior to release, signifying not only the author of the work, but the user who has purchased a legitimate copy. The DRM software will ensure that the user has paid for the song by comparing the watermark to the existing purchased licences on the system.

DC Watermarking Scheme

The DC watermarking scheme hides watermark data in lower frequency components of the audio signal, which are below the perceptual threshold of the human auditory system.

Watermark Insertion
The process of inserting a digital watermark into an audio file can be divided into four main processes which are:
1)Framing,:Here, The audio file is portioned into frames which are 90 milliseconds in duration. This frame size is chosen so that the embedded watermark does not introduce any audible distortion into the file.
2)spectral analysis(FFT):
we perform spectral analysis on the signal, consisting of a fast Fourier transform (FFT), which allows us to calculate the low frequency components of each frame, as well as the overall frame power.

3)DC carrier removal
4)Watermark signal addition.From the spectral analysis completed previously, we calculated the spectral power for each frame, which allows us to examine the low frequency power in each frame and subsequently extract the watermark,


robustness and data density causes the limitations. The robustness of the scheme can be increased somewhat with longer audio files, by inserting the watermark signal multiple times, which will aid in extraction. higher hidden data density in the watermarked signal can be achieved by more advanced techniques such as spread spectrum, phase encoding, or echo hiding .

[b]Other Watermarking Techniques
Phase Encoding[/b]
This watermarking technique exploits the human auditory systemâ„¢s lack of sensitivity to absolute phase changes by encoding the watermark data in an artificial phase signal.The the audio signal is broken down into into frames, and performing spectral analysis on each frame.

Spread Spectrum Watermarking
This watermarking technique relies on direct sequence spread spectrum (DSSS) to spread the watermarked signal over the entire audible frequency spectrum such that it approximates white noise, at a power level as to be inaudible. a carrier wave which creates the spread signal watermark code modulates the signal using the pseudorandom sequence (chip).

Echo Watermarking

It relies on distorting an audio signal in a way which is perceptually dismissed by the human auditory system as environmental distortion.The original audio signal is copied into two segments called kernels -one which leads the original signal in time, and one which lags.

For more details, visit:

Please Use Search wisely To Get More Information About A Seminar Or Project Topic
08-02-2012, 09:36 AM
Post: #3
RE: digital audio watermarking
to get information about the topic watermarking digital audio full report,ppt and related topic refer the link bellow
Rating digital audio watermarking Options
Share digital audio watermarking To Your Friends :- Seminar Topics Bookmark
Post Reply 

Marked Categories : audio fft watermarking, digital water marking, report onseminar audio watermarking system, study on strength behaviour of concrete using foundry dust in fine aggregate, audio watermarking seminar, audio watermarking ppt, audio watermarking applications ppt, watermarking digital audio ppt, digital audio watermarking ppt, digital audio watermarking, ppt on digital audio watermarking system, 2 study on strength behaviour of concrete using foundry dust in fine aggregate, audio watermarking, digital watermark audio system, 2 study on strength behaviour of concrete using foundry dust in fine aggregat, water marking, presentation ppt of audio watermarking,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  steganography in audio files ppt nannulwin 1 77 Today 09:46 AM
Last Post: mkaasees
  free download pdf for digital ammeter 8051 controller based Guest 1 271 22-01-2015 09:34 AM
Last Post: Guest
  project report on digital parking system ppt Guest 1 125 21-01-2015 10:07 AM
Last Post: mkaasees
  seminar report on digital twin spark ignition engine ppt Guest 1 111 16-01-2015 11:19 AM
Last Post: mkaasees
  digital underwater communication using electric current method seminar report Guest 1 113 14-01-2015 09:49 AM
Last Post: mkaasees
  algorithm for digital jewellery Guest 0 104 11-01-2015 09:52 AM
Last Post: Guest
Tongue local author text books for 7th sem vtu ece digital image processing Guest 0 91 03-01-2015 08:50 PM
Last Post: Guest
  remote circuit diagram to stop digital power meter Guest 0 75 03-01-2015 02:14 PM
Last Post: Guest
  extracting spread spectrum hidden data from digital media ppt Guest 1 101 02-01-2015 10:07 AM
Last Post: mkaasees
  digital jewellery ieee paper Guest 1 92 31-12-2014 09:34 AM
Last Post: mkaasees
This Page May Contain What is digital audio watermarking And Latest Information/News About digital audio watermarking,If Not ...Use Search to get more info about digital audio watermarking Or Ask Here