Search results
Results from the WOW.Com Content Network
This may be accomplished by time stretching and then resampling back to the original length. Alternatively, the frequency of the sinusoids in a sinusoidal model may be altered directly, and the signal reconstructed at the appropriate time scale. Transposing can be called frequency scaling or pitch shifting, depending on perspective.
The computer algorithm allows frequency-domain modifications to a digital sound file (typically time expansion/compression and pitch shifting). At the heart of the phase vocoder is the short-time Fourier transform (STFT), typically coded using fast Fourier transforms.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Time_stretching_(audio)&oldid=787142804"
Decoding of SBR requires transposing harmonics, a case of audio time stretching and pitch scaling. [10] A traditional approach starts with small intervals of discrete fourier transform (DFT), phase adjustments, IDFT, and ends with overlap-add. This method is sensitive to transient signals which can cause echos, requiring some padding (50% in ...
Time stretching may refer to: Audio time stretching and pitch scaling, in audio; Time stretching, in video; Time dilation, in physics (relativity theory) Time stretch analog-to-digital converter, in electronics
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
time stretching – the opposite of pitch shift, that is, the process of changing the speed of an audio signal without affecting its pitch. resonators – emphasize harmonic frequency content on specified frequencies. robotic voice effects are used to make an actor's voice sound like a synthesized human voice.
Researchers have produced conflicting results when it comes to the best pre-workout stretch. For example, a well-cited August 2003 study showed evidence of static stretching for warm-ups worsening ...