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Valhalla Delay is a plugin which simulates the sounds of a number of vintage delays, including tape based delays (such as the sound of Roland Space Echo, Maestro Echoplex, or reel to reel based tape delay units), "bucket brigade" delays, 1980s digital delays, and delays with pitch shifting. [31]
Formant frequencies, in their acoustic definition, can be estimated from the frequency spectrum of the sound, using a spectrogram (in the figure) or a spectrum analyzer. However, to estimate the acoustic resonances of the vocal tract (i.e. the speech definition of formants) from a speech recording, one can use linear predictive coding .
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.
For example, one could move the pitch of every note up by a perfect fifth, keeping the tempo the same. One can view this transposition as "pitch shifting", "shifting" each note up 7 keys on a piano keyboard, or adding a fixed amount on the Mel scale, or adding a fixed amount in linear pitch space. One can view the same transposition as ...
Applying a formant sequence to a sound allows a complex, evolving sound to be programmed in a relatively short time. 90 formant sequences were supplied with the FS1R. The 'formant' controls exclusive to the FS1R unlike other FM synthesizers. Yamaha FS1R Front Panel Yamaha FS1R Control Screen Sakura Free FS1R Editor
Format shifting is the conversion of media files into different file format or data compression (video coding format and audio coding format). This may be required to play the media on different devices, for example when converting or ripping audio files on CDs into digital formats such as MP3 .
Pitch correction is a form of pitch shifting and is found in software such as Auto-Tune and Melodyne to correct intonation inaccuracies in a recording or performance. Pitch shifting may raise or lower all sounds in a recording by the same amount, whereas in practice, pitch correction may make different changes from note to note. [5]
Modern time-stretching and pitch-shifting algorithms; Folder watching for automatic offline processing; Full integration of external effects hardware; Master Section with effect slots, re-sampling, master level, final effects/dithering, playback processing and speaker configuration; Direct exchange and ASIO driver sharing with Cubase and Nuendo