Version 3.2.2: in-memory replacements fill their slots exactly (padded ones played as silence)

tests/synth.py

@@ -25,6 +25,16 @@ def wem(seconds, freq, rate=24000, ch=1):
     return encoder.encode(x, sr, rate, ch)[0]
 
 
+def fitting_wem(ws, s, seconds, freq):
+    """A tone WEM that `ws` accepts for `s` (Workspace.fits: in-memory slots are filled exactly, which needs
+    an even number of spare bytes): the tone is shortened a little until the size allows it."""
+    for k in range(40):
+        w = wem(seconds * (1 - 0.01 * k), freq)
+        if ws.fits(s, w):
+            return w
+    raise AssertionError("no fitting WEM for %s" % s.key)
+
+
 def _a(x, n):
     return (x + n - 1) // n * n