Merge pull request #27 from EMCP/master

getting a warning when executing regarding abs()

examples/audiometer.jl

@@ -9,7 +9,7 @@ function micmeter(metersize)
     println("Press Ctrl-C to quit")
     while true
         block = read(mic, 512)
-        blockmax = maximum(abs(block)) # find the maximum value in the block
+        blockmax = maximum(abs.(block)) # find the maximum value in the block
         signalmax = max(signalmax, blockmax) # keep the maximum value ever
         print("\r") # reset the cursor to the beginning of the line
         printmeter(metersize, blockmax, signalmax)

examples/spectrum.jl

@@ -14,7 +14,7 @@ const fs = Float32[float(f) for f in domain(fft(buf)[fmin..fmax])]
 
 while true
     read!(stream, buf)
-    plot(fs, abs(fft(buf)[fmin..fmax]), xlim=(fs[1],fs[end]), ylim=(0,100))
+    plot(fs, abs.(fft(buf)[fmin..fmax]), xlim=(fs[1],fs[end]), ylim=(0,100))
 end
 
 end