I am building a patch which is basically a loopsampler using phasor~ and tabread4~.

When I loaded a 1-second long 400hz sinewave, I got a click each time the sample looped. Strangely, when I set the loop point at 43659 samples instead of 44100, there was no click. The point 43659 is a zero-crossing point, but so is the last point at 44100.

Finally I discovered that if I add 3 to the table-size, the patch will loop the whole 1-second sinewave without clicks. This appears to work for all waveforms I have tested.

So, are my observations correct? Is it necessary to add 3 to the table size when using tabread4~ with a phasor~? If yes, can someone explain me why?

Thanks!