Steinberg WAVELAB 8.5 RETAIL SOFTWARE 45370 数据表

Auto/Preview: Automatically selects the best time/frequency trade-off for 
real-time/preview performance. This is the fastest setting, but might not 
provide optimal results in all cases.

Time localization ++ (instruments, voices): Selects full time localization. 
This is a good setting for single instruments and solo voices.

Time localization +: Time/frequency localization with the emphasis on time 
localization. If the previous mode produces echo artifacts, try this option.

Average Time/Frequency localization: Sets the time/frequency localization 
halfway between the time and frequency domains. It is the best setting for all 
general purpose signals.

Frequency localization +: Time/Frequency localization with the emphasis on 
frequency localization. Good setting for classical music.

Frequency localization ++ (complex mixes): Highest possible frequency 
localization. This setting might not work well on material with many sharp 
attack transients, but it can produce good results with less 
transient/percussive material.

Transcribe mode (for large changes): This uses a content aware algorithm 
to time stretch and pitch shift music by up to 4x the original length without 
losing information critical to transcription, such as attack transients.

The High quality and Best (very slow) modes provide high quality time 
stretching, but the processing takes longer. For most uses, the Standard 
quality mode is sufficient.

Modulates the stretch factor over time.

Time stretch is a complicated Digital Signal Processing (DSP) operation, that 
always affects the sound quality to some extent.

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For speech, stretch factors within a ±30 % limit provide good results.

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For composite music, try to limit the range to ±10 %.

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For sensitive material, like solo piano, try to limit the range to ±3 %.