IntroductionHiérarchie de section : Modeling Sounds with Sinusoids > Partials Analysis > Partial Tracking and Chord Sequence SynthesisPartial Tracking and Chord Sequence Synthesis
Once the partial tracking or chord sequence analysis has been done, the resulting partials can be synthesized.
Real Time Partial Synthesis
The real time synthesis can be used as a preview before outputting the file resulting from the partials synthesis treatment.
Select
Processing/Synthesize Partials. If you selected a number of partials, the menu will be converted intoSynthesize Selected Partials.The resulting signal will be played automatically, just as a preview. This is the only means to get a preview of the synthesis.
You can synthesize all the partials, or a selection of partials to output them in an audio file.
Select
Processing/Synthesize from PartialsTo synthesize selected partials, check the Only Selected Partials option. The same menu used to synthesize all partials will be modified : select
Processing/Synthesize Selected Partials.Ctrlclick on a partial, or a group of preselected partials and chooseSynthesize Partialin the contextual menu.
The quality of the real time synthesis or synthesis output file depend on the same parameters. These parameters are accessed via two menus : Realtime Synthesis Settings or Synthesize Partials which actually open the same window.
The Real Time Processing Settings are only related to treatments, although they also include synthesis settings.
For more information, see the corresponding section.
Synthesis Parameters
Residual : the residual is the remaining part of the sound once the partials have been substracted. This option allows to output this residual of the signal as an audio file.
Mix-In Sinusoids : when selecting this option, the slider can be used to control the weight of the synthesized sinusoids in the sound. The lower the percentage, the closer we get to the residual alone, and the higher the lower the amplitude of the output sound is.
This enveloppe adds a fade in or fade out before and after a partial.
Smoothing Envelope Attack : enveloppe at the beginning of the partial. Default value : 10 ms.
Smoothing Envelope Release : enveloppe at the end of the partial. Default value : 10 ms.
Once an enveloppe is defined during the partial tracking analysis, it will affect the result permanently. If you use a smoothing envelope and then choose a smoothing envelope again for the partials synthesis, the second enveloppe will be added to the current partials envelope. It might be wiser not to use any envelope for the analysis, and to apply an envelope for the synthesis only, as a more flexible solution.
As the chord sequence analysis has no smoothing envelope, the parameters can be defined freely.
By default, the format is similar to that of the original signal. Three parameters can be modified via the Output Format settings of the dialogue window :
Sample rate
Sample size
File type
- Introduction
- About this Document
- Introduction
- Installation
- Going Through an AS Session
- The AudioSculpt Environment
- Signal Representation
- Signal Analysis
- Modeling Sounds with Sinusoids
- Introduction
- Partials Analysis
- Partial Tracking Analysis
- Chord Sequence Analysis
- Visualizing and Manipulating Partials
- Saving and Using Partial Files
- Partial Tracking and Chord Sequence Synthesis
- Noise Removal
- Other Analysis
- Signal Manipulation
- Managing Treatments
- Processing Sequencer
- Advanced Use
- Errors and Problems
- Basic Analysis/Synthesis Notions
