possum
possum
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Thanks Ben, It looks like we crossed posts. Yeah, I figured out the iPhone I/O share a common ground. It seems like the iPhone is not happy with inputs exceeding 1 Vrms, which also makes using a power amp dangerous if speaker impedance and sense resistor values are not carefully considered. Do you know of issues with the…
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here is how I understand the I/O block diagram for measuring loudspeaker impedance based on your video tutorial. I'm using the following equipment; iPod touch 5G with 30pin to lightning adapter Line 6 Mobile In one observation with this setup; I'm not seeing the option for (Ch2-Ch1) input, just Ch1 and Ch2 independently.…
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little bump for the new year. In regards to your original questions: Are you connecting/disconnecting any audio input devices (e.g. a headset mic or dock connector interface)? No Are any other apps running that might access audio inputs/outputs on your iPod? No Just wondering if I can provide any more info on the Matlab…
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Hi Ben, I just tried repeating the .mat file export with a speaker playing a 1kHz sine wave. SSPro reported the correct frequency on the graph. I exported a .mat file, and when I was returned to the FFT analyzer screen (which was still running), the sine wave frequency peak drifted down from 1kHz (presumably 44100/48000 *…
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Thanks Faber, the update works great! Possum