Update to allow the output file to have a different sample rate

[minghia]

I wanted to have a 16000 kHz sample rate so I modified play.py so that it can take a different sample rate if the -r flag is used. Use if you want:
diff --git a/play.py b/play.py
index b622d50..3db736d 100755
--- a/play.py
+++ b/play.py
@@ -18,13 +18,13 @@ AUDIO_PADDING = 0.5 # Seconds
CLICK_SMOOTH = 2 # Tone periods

-def main(message, freq, wpm, fs, prompt, outFile):
+def main(message, freq, wpm, fs, rate, prompt, outFile):
if prompt:
# Load spoken letter WAV files
letterNames = loadLetterNames()
sps = letterNames[LETTERS[0]][0]
else:

• sps = SPS

• sps = rate
  print('Audio samples per second =', sps)
  print('Tone period =', round(1000/freq, 1), 'ms')

@@ -138,6 +138,7 @@ if name == 'main':
parser.add_argument('--fs', type=float, default=FS, help='Farnsworth speed')
parser.add_argument('-p', action='store_true', default=False, help='Say letters along with morse code')
parser.add_argument('-o', type=str, default='', help='Output to given WAV file instead of playing sound')

• parser.add_argument('-r', type=int, default=SPS, help='Sample Rate')
  parser.add_argument('message', nargs='*', help='Text to translate or blank to take from stdin')
  args = parser.parse_args()

@@ -149,5 +150,5 @@ if name == 'main':
if not message:
print('Specify a message through the command line or stdin.')
message = 'Specify a message.'

• main(message, args.f, args.wpm, args.fs, args.p, args.o)

• main(message, args.f, args.wpm, args.fs, args.r, args.p, args.o)