parsers.wav_parser.WavParser Class Reference

This class manipulates and plays WAV audio files. More...

Inheritance diagram for parsers.wav_parser.WavParser:

Public Member Functions
def	__init__
	Constructor. More...
def	get_sound_len
	Returns a sound's length, in seconds. More...
def	play_seg
	Plays a segment's corresponding audio clip. More...
def	play_utter
	Plays an utterance's corresponding audio clip. More...
def	extract_clip
def	play_clip
	Extracts a specified chunk of audio from the wav file and plays it through the default audio device. More...
def	close
	Closes any files or other resources used by this parser. More...

Public Attributes
	logger
	total_sec
	wav_in

Detailed Description

This class manipulates and plays WAV audio files.

This class requires the PyAudio library.

Definition at line 10 of file wav_parser.py.

Constructor & Destructor Documentation

def parsers.wav_parser.WavParser.__init__	(		self,
			filename
	)

Constructor.

Parameters

self
filename	(string) full path to a WAV file

Definition at line 14 of file wav_parser.py.

Member Function Documentation

def parsers.wav_parser.WavParser.close

(

self

)

Closes any files or other resources used by this parser.

This should always be called after you're done with the parser!

Parameters

self

Definition at line 118 of file wav_parser.py.

def parsers.wav_parser.WavParser.extract_clip	(		self,
			start_time,
			end_time,
			filename
	)

Definition at line 66 of file wav_parser.py.

def parsers.wav_parser.WavParser.get_sound_len

(

self

)

Returns a sound's length, in seconds.

Parameters

self

Returns

(float) The length of the sound in seconds, or zero if there was an error opening the WAV file.

Definition at line 28 of file wav_parser.py.

def parsers.wav_parser.WavParser.play_clip	(		self,
			start_time,
			end_time
	)

Extracts a specified chunk of audio from the wav file and plays it through the default audio device.

Parameters

self
start_time	(float) absolute start time of the clip to play, in seconds
end_time	(float) absolute end time of the clip to play, in seconds

Definition at line 89 of file wav_parser.py.

def parsers.wav_parser.WavParser.play_seg	(		self,
			seg,
			context_len = 0
	)

Plays a segment's corresponding audio clip.

Audio is played from (seg.start - context_len) to (seg.end + context_len).

Parameters

self
seg	(Segment) The Segment object for which to play a clip
context_len	(int=0) the padding length, in seconds, to be applied to both sides.

Definition at line 39 of file wav_parser.py.

def parsers.wav_parser.WavParser.play_utter	(		self,
			utter,
			context_len = 0,
			play_linked = False
	)

Plays an utterance's corresponding audio clip.

Audio is played from (utter.start - context_len) to (utter.end + context_len).

Parameters

self
utter	(Utterance) The Utterance object for which to play a clip
context_len	(int=0) the padding length, in seconds, to be applied to both sides
play_linked	(boolean=False) If true, the entire Utterance chain will be played. Otherwise only a single utternace will be played.

Definition at line 51 of file wav_parser.py.

Member Data Documentation

parsers.wav_parser.WavParser.logger

Definition at line 15 of file wav_parser.py.

parsers.wav_parser.WavParser.total_sec

Definition at line 16 of file wav_parser.py.

parsers.wav_parser.WavParser.wav_in

Definition at line 20 of file wav_parser.py.

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The documentation for this class was generated from the following file:

• C:/Users/Wayne/Documents/baby-lab/bll_app/parsers/wav_parser.py