Don't use setrate etc. in samples.

recordtest.py

@@ -1,4 +1,5 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
+# -*- mode: python; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*-
 
 ## recordtest.py
 ##
@@ -22,48 +23,42 @@ import getopt
 import alsaaudio
 
 def usage():
-    print('usage: recordtest.py [-d <device>] <file>', file=sys.stderr)
-    sys.exit(2)
+	print('usage: recordtest.py [-d <device>] <file>', file=sys.stderr)
+	sys.exit(2)
 
 if __name__ == '__main__':
 
-    device = 'default'
+	device = 'default'
 
-    opts, args = getopt.getopt(sys.argv[1:], 'd:')
-    for o, a in opts:
-        if o == '-d':
-            device = a
+	opts, args = getopt.getopt(sys.argv[1:], 'd:')
+	for o, a in opts:
+		if o == '-d':
+			device = a
 
-    if not args:
-        usage()
+	if not args:
+		usage()
 
-    f = open(args[0], 'wb')
+	f = open(args[0], 'wb')
 
-    # Open the device in nonblocking capture mode. The last argument could
-    # just as well have been zero for blocking mode. Then we could have
-    # left out the sleep call in the bottom of the loop
-    inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK, device=device)
+	# Open the device in nonblocking capture mode in mono, with a sampling rate of 44100 Hz 
+	# and 16 bit little endian samples
+	# The period size controls the internal number of frames per period.
+	# The significance of this parameter is documented in the ALSA api.
+	# For our purposes, it is suficcient to know that reads from the device
+	# will return this many frames. Each frame being 2 bytes long.
+	# This means that the reads below will return either 320 bytes of data
+	# or 0 bytes of data. The latter is possible because we are in nonblocking
+	# mode.
+	inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK, 
+		channels=1, rate=44100, format=alsaaudio.PCM_FORMAT_S16_LE, 
+		periodsize=160, device=device)
 
-    # Set attributes: Mono, 44100 Hz, 16 bit little endian samples
-    inp.setchannels(1)
-    inp.setrate(44100)
-    inp.setformat(alsaaudio.PCM_FORMAT_S16_LE)
-
-    # The period size controls the internal number of frames per period.
-    # The significance of this parameter is documented in the ALSA api.
-    # For our purposes, it is suficcient to know that reads from the device
-    # will return this many frames. Each frame being 2 bytes long.
-    # This means that the reads below will return either 320 bytes of data
-    # or 0 bytes of data. The latter is possible because we are in nonblocking
-    # mode.
-    inp.setperiodsize(160)
-    
-    loops = 1000000
-    while loops > 0:
-        loops -= 1
-        # Read data from device
-        l, data = inp.read()
-      
-        if l:
-            f.write(data)
-            time.sleep(.001)
+	loops = 1000000
+	while loops > 0:
+		loops -= 1
+		# Read data from device
+		l, data = inp.read()
+	  
+		if l:
+			f.write(data)
+			time.sleep(.001)