Hi Josh,
So far I have been generating different auditory tones (e.g., 8 and 14 kHz) using the analog output module. I do this by connecting it directly with a speaker using an audio-jack/BNC converter and then playing the sine waves that I have loaded to the module. This way is easy to set up but the sound quality is not so ideal. It seems like the tones are not "pure" occasionally, especially when the tones are played at high sound intensity (85-90 dB). Therefore, I am currently thinking of replacing my setup with the HiFi module.
For my usage, will the HD or SD version be more suitable? Would you anticipate that the issue I described above will be solved after the replacement? Also, do you have any speaker that you recommend using with the HiFi module? Something that can produce clean and loud sound up to 20 kHz will be ideal for me. I am now using a cheap speaker that costs ~$10 so this might be part of the issue...
Thank you very much!
Tin
