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Audio time stretching and pitch scaling - Wikipedia
https://en.wikipedia.org/wiki/Audio_time_stretching_and_pitch_scaling#:~:text=Time%20stretching%20is%20the%20process%20of%20changing%20the,an%20effects%20unit%20and%20intended%20for%20live%20performance.
AES E-Library » Time and Pitch Scaling of Audio Signals
https://www.aes.org/e-lib/browse.cfm?elib=5739
abstract={an algorithm to time-scale audio signals in real-time based on pitch-shifting is presented. the pitch-shifter is based on the …
Time and Pitch Scale Modification of Audio Signals ...
https://link.springer.com/chapter/10.1007/0-306-47042-X_7
Abstract. The independent control over the time evolution and the pitch contour of audio signals has always stood very high on the wish-list of the audio community because it breaks the traditional tie between pitch and rate of playback. Rudimentary solutions to that problem date back to the analog days, but the recent advent of fast digital audio processors has made it …
Time and Pitch Scale Modification of Audio Signals using ...
https://research.ijcaonline.org/ccsn2012/number3/ccsn1025.pdf
that (a) original voice, (b) pitch scaled with σ =2. In pitch scaling the time domain speech signals are same but the spectrums are altered. The corresponding psds are given at the right side. -0.2 0 1 2 3 4 5 6 7 8 x 10 4-0.4-0.2 0 0.2 0.4 Original wave file 0 2 4 6 8 10-120-100-80-60-40 Frequency (kHz)) PSD of Original wave file 1 23 45 67
Time and Pitch Scale Modification of Audio Signals
https://www.researchgate.net/publication/226135596_Time_and_Pitch_Scale_Modification_of_Audio_Signals
The authors focus mainly on pitch-scale modifications of speech and audio signals and discuss the drawbacks of the standard time-scaling and resampling technique. Two alternative techniques are ...
Time and pitch scaling in audio processing - Surina.net
https://www.surina.net/article/time-and-pitch-scaling.html
Luckily signal processing techniques exist for modifying the time and pitch scales independently of each other, these techniques being known as time/pitch scaling, time/pitch shifting or time stretching. Applications. Time scaling that reduces the music playback speed or tempo ease practicing playing musical instruments and dancing. Slowing down recorded speech helps …
ELEN E4896 MUSIC SIGNAL PROCESSING Lecture 9: Time & …
https://www.ee.columbia.edu/~dpwe/e4896/lectures/E4896-L09.pdf
1. Time Scale Modification (TSM) • The basic problem in time scaling: Modify a sound to make it “quicker/slower”? to examine “detail” in speech/performance to synchronize tracks 2 x s(t)=x(t/r) • Why not just change the sampling rate? “slowing the tape” e.g. for r times longer (slower), 2.35 2.4 2.45 2.5 2.55 2.6-0.1-0.05 0 0.05 0.1
Time Stretching And Pitch Shifting of Audio Signals – An ...
http://blogs.zynaptiq.com/bernsee/time-pitch-overview/
Typically, good algorithms allow pitch shifting up to 5 semitones on average or stretching the length by 130%. When time stretching and pitch shifting single instrument recordings you might even be able to achieve a 200% time stretch, or a one-octave pitch shift with no audible loss in quality. 2.
High quality time-scaling and pitch-scaling of audio signals
https://www.freepatentsonline.com/8195472.html
In one alternative, an audio signal is analyzed using multiple psychoacoustic criteria to identify a region of the signal in which time scaling and/or pitch shifting processing would be inaudible or m
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