One of my customers is reviewing the application of sigmaDSP to new projects.
The part under review is one of ADAU1401A and ADAU1452, and following questions.
1. she wants pitch control, Is it possible to vary the pitch control to an exponential or logarithmic function instead of a linear one?
2. If the MCU sends 5 sound sources, does it have the ability to mix 5 sound sources after individually controlling the pitch?
3. Is it possible to raise or lower the sound pressure level at a certain frequency (eg 200Hz, 500Hz, 1kHz) through FFT conversion?
I have checked the FFT function of Sigma Studio, it seems that the parameter can not be modified. If there is a method, let me know.
4. Is it possible to import sound sources directly from the external Flash Memory (sound source storage) to the SPI and tune them on the ADAU1401A?