I think with good equipment and young ears it should be audible. In the +/- 32767 range of wave file data, that would be about 32, 2^5, maybe in the 5th bit of a 16 bit number, maybe 60 dB down. The purple curve's error appears to be about 1 part in 1000 I'm not sure if that will be audible or not. The solid orange curve is the original sine wave multiplied by the orange envelope to scale it down. The dotted orange curve is a spline interpolation of the points in the dotted purple curve. The dotted purple decay curve is falling, but about to become flat (sustain.) The solid sine curve is rising, but slowing. Zoom in a bit at the corner between the decay and sustain curves: The orange spline-based curves are hiding behind the purple curves at this zoom they are nearly identical. (This is simplified data, not the data you heard above and further below.) As long as the spline's tension is high enough, the glitch is too subtle to notice. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. To fix it, I fit a spline to the ADSR curve. Subscription Information AudioNote 2 offers the AudioNote 2 Pro subscription for 9.99 / year along with a 1 month free trial. I built a data table to make a simplified version and eventually realized the glitch is caused by the sharp corners in the ADSR curve. The attack was set for 0.001 seconds and the decay for 0.003 at 44,100 samples per second the attack ends at sample 44 and the decay ends around sample 176. While you are recording you can pause with the Pause button, or add a bookmark (or index mark) with the Bookmark button. Since I was writing the code, I assumed I'd made an error zooming it makes it look like a significant error that might impact the sound a bit. Click on the Record into audio file button and you can then record using your default audio device (see the Windows Control Panel to configure your audio devices). Sign up for an account and grab mobile apps for your Android, iPhone, iPad, BlackBerry, Windows Phone, and Kindle Fire.If you look at the top of the first cycle in the graph, you'll see a small glitch. Keep all of your most important files effortlessly synced across every device, thanks to Dropbox.ĭropbox makes sharing files easy too-the other people in your study group don’t even need to be Dropbox users to send you files over the service, but if they’re smart enough to get into college, they probably have Dropbox too. You’ll get 2GB of cloud storage for free, and it’s probably the most versatile service out there for syncing data between your desktop, mobile, and dozens of compatible apps. 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