Continuous Replay and Filter

Continuous Replay and Filter. Added a test main for people to easily test their filters.

src/Main_test.m

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+%Basic Example test 
+%Written by Darell
+amplitude = 1;
+frequency = 200;
+phase = 0;
+fs = 44800;
+duration = 1;
+duty = 0;
+
+%example Sine Generation
+x = generate_sine(amplitude, frequency, phase, fs, duration, duty);
+x = x + generate_sine(amplitude, (frequency+5), phase, fs, duration, duty);
+
+%play over 5 counts, should hear both frequencies, 5 beats between the 2 frequencies
+playtime = 5;
+play_continuous(x, fs, playtime)
+
+LOW = 0;
+HIGH = frequency + 1;
+MED = "unused";
+x = DarellbandpassFilter(x,fs,LOW,MED,HIGH);
+
+%play over 5 counts, should only hear 200hz
+playtime = 5;
+play_continuous(x, fs, playtime)

src/play_continuous.m

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+function play_continuous(wave, fs, time)
+%play_continuous: Darell Continuously Playing
+    soundfile = audioplayer(wave,fs);
+    countmax = time / (length(wave) / fs);
+    for count = 0:1:countmax %change to counts/while play button active
+        playblocking(soundfile);
+    end
+end
+