Nate_Fritz
New member
Hello all,
I am planning on doing a music reactive lighting project using the Teensy 4.0 and audio shield. However, I am having trouble figuring out what exactly the audio shield is capable of, as the SGTL5000 datasheet does not provide any information regarding FFT. I would like to send the incoming audio signals to the audio shield via the line in terminals, then use a low pass filter to cut off any frequencies above 22.5kHz. After the signal is filtered, I would like to sample it (ADC) at a rate of 44.1kHz and then perform an FFT function to group the incoming frequencies into various bands that I can then use to generate lighting control signals. Anyways, my question is regarding the audio shield. Is the audio shield capable of performing the filtering, ADC, and FFT? And if so where can I find additional information about this? As I stated earlier, I have already looked through the SGTL5000 datasheet and was not able to find what I was looking for.
Thank you!
I am planning on doing a music reactive lighting project using the Teensy 4.0 and audio shield. However, I am having trouble figuring out what exactly the audio shield is capable of, as the SGTL5000 datasheet does not provide any information regarding FFT. I would like to send the incoming audio signals to the audio shield via the line in terminals, then use a low pass filter to cut off any frequencies above 22.5kHz. After the signal is filtered, I would like to sample it (ADC) at a rate of 44.1kHz and then perform an FFT function to group the incoming frequencies into various bands that I can then use to generate lighting control signals. Anyways, my question is regarding the audio shield. Is the audio shield capable of performing the filtering, ADC, and FFT? And if so where can I find additional information about this? As I stated earlier, I have already looked through the SGTL5000 datasheet and was not able to find what I was looking for.
Thank you!