I've been playing around with the "Recorder.ino" example sketch from the audio library today when i ran into a weird glitch, which seems to happen only during the first 1-2 seconds of the recording, roughly at the same time, after which things proceed smoothly. i've attached two screen shots of a recorded sine wave, so it can be seen easily:
it kind of looks like as if recording stops intermittently; the glitchy part seems to be 512 samples long, invariably.
anyone else seeing this? it doesn't happen always, but in roughly ~ 60% of attempts (this is with a san disk ultra 16GB, which seems to behave nicely otherwise. i've tried with teensy both 1.23 and 1.25; and at 96MHz and 120MHz, doesn't seem to make a difference).
it kind of looks like as if recording stops intermittently; the glitchy part seems to be 512 samples long, invariably.
anyone else seeing this? it doesn't happen always, but in roughly ~ 60% of attempts (this is with a san disk ultra 16GB, which seems to behave nicely otherwise. i've tried with teensy both 1.23 and 1.25; and at 96MHz and 120MHz, doesn't seem to make a difference).