def hearing_test_audio(example_num):
"""
Retrieve audio for hearing test
Parameters
----------
example_num : str
The index of the example audio (1 or 2)
Return
------
flask.Response
"""
if example_num == '0':
# calibration
if app.config['TEST_TYPE'] == 'segmentation':
file_path = 'hearing_test_audio/seg_hearing.wav'
else:
file_path = 'hearing_test_audio/1000Hz.wav'
else:
hearing_test_audio_index = int(
utilities.decrypt_data(session['hearing_test_audio_index%s' %
example_num]))
num_tones = hearing_test_audio_index / configuration.HEARING_TEST_AUDIO_FILES_PER_TONES
file_num = hearing_test_audio_index % configuration.HEARING_TEST_AUDIO_FILES_PER_TONES
logger.info('hearing_test %s - %d %d' %
(example_num, num_tones, file_num))
file_path = 'hearing_test_audio/tones%d_%d.wav' % (num_tones, file_num)
with open(file_path, 'rb') as f:
response = make_response(f.read())
response.headers['Content-Type'] = 'audio/wav'
response.headers['Accept-Ranges'] = 'bytes'
return response
def audio(audio_file_key):
"""
Return audio from audio file URL in `audio_file_key`
Parameters
----------
audio_file_key: str
The encrypted key that contains a dictionary that included an item keyed by 'path' which is the location of the
audio file
Returns
-------
flask.Response
"""
if app.config['ENCRYPT_AUDIO_STIMULI_URLS']:
try:
audio_file_dict = utilities.decrypt_data(str(audio_file_key))
# can also assert that this file is for this specific participant and condition
assert (audio_file_dict['p_id'] == session['participant_id'])
assert (audio_file_dict['g_id'] in session['condition_group_ids'])
filename = audio_file_dict['URL']
except (ValueError, TypeError):
filename = audio_file_key + '.wav'
else:
filename = audio_file_key + '.wav'
return send_file_partial(
safe_join(safe_join(app.root_path, app.config['AUDIO_FILE_DIRECTORY']),
filename))
def hearing_test_audio(example_num):
"""
Retrieve audio for hearing test
Parameters
----------
example_num : str
The index of the example audio (1 or 2)
Return
------
flask.Response
"""
if example_num == '0':
# calibration
if app.config['TEST_TYPE'] == 'segmentation':
file_path = 'hearing_test_audio/seg_hearing.wav'
else:
file_path = 'hearing_test_audio/1000Hz.wav'
else:
hearing_test_audio_index = int(utilities.decrypt_data(session['hearing_test_audio_index%s' % example_num]))
num_tones = hearing_test_audio_index / configuration.HEARING_TEST_AUDIO_FILES_PER_TONES
file_num = hearing_test_audio_index % configuration.HEARING_TEST_AUDIO_FILES_PER_TONES
logger.info('hearing_test %s - %d %d' % (example_num, num_tones, file_num))
file_path = 'hearing_test_audio/tones%d_%d.wav' % (num_tones, file_num)
with open(file_path, 'rb') as f:
response = make_response(f.read())
response.headers['Content-Type'] = 'audio/wav'
response.headers['Accept-Ranges'] = 'bytes'
return response
def audio(audio_file_key):
"""
Return audio from audio file URL in `audio_file_key`
Parameters
----------
audio_file_key: str
The encrypted key that contains a dictionary that included an item keyed by 'path' which is the location of the
audio file
Returns
-------
flask.Response
"""
if app.config['AUDIO_CODEC'] == 'wav':
file_format = '.wav'
elif app.config['AUDIO_CODEC'] == 'mp3':
file_format = '.mp3'
if app.config['ENCRYPT_AUDIO_STIMULI_URLS']:
try:
audio_file_dict = utilities.decrypt_data(str(audio_file_key))
# can also assert that this file is for this specific participant and condition
assert (audio_file_dict['p_id'] == session['participant_id'])
assert (audio_file_dict['g_id'] in session['condition_group_ids'])
filename = audio_file_dict['URL']
except (ValueError, TypeError):
filename = audio_file_key + file_format
else:
filename = audio_file_key + file_format
if app.config['EXTERNAL_FILE_HOST']:
# return send_file_partial(app.config['AUDIO_FILE_DIRECTORY']+filename)
return send_file_partial_hack(safe_join(app.config['AUDIO_FILE_DIRECTORY'], filename))
else:
return send_file_partial(safe_join(safe_join(app.root_path, app.config['AUDIO_FILE_DIRECTORY']), filename))
def hearing_test():
"""
Determines if the user is eligible to take the hearing test (i.e. has not exceeded `MAX_HEARING_TEST_ATTEMPTS`, and
then renders the hearing test, which consists of the assessor counting the tones in two audio files.
If caqe.settings.HEARING_TEST_REJECTION_ENABLED is set to False, then pass them through after they had their 2
attempts.
Returns
-------
flask.Response
"""
participant = get_current_participant(session)
if request.method == 'GET':
if participant.hearing_test_attempts >= app.config[
'MAX_HEARING_TEST_ATTEMPTS']:
logger.info('Max hearing test attempts reached - %r' % participant)
return render_template(
'sorry.html',
message='Sorry. You have exceed the number of allowed attempts. '
'Please try again tomorrow.')
while True:
hearing_test_audio_index1 = random.randint(
configuration.MIN_HEARING_TEST_AUDIO_INDEX,
configuration.MAX_HEARING_TEST_AUDIO_INDEX)
hearing_test_audio_index2 = random.randint(
configuration.MIN_HEARING_TEST_AUDIO_INDEX,
configuration.MAX_HEARING_TEST_AUDIO_INDEX)
if hearing_test_audio_index1 != hearing_test_audio_index2:
# encrypt the data so that someone can't figure out the pattern on the client side
logger.info('Hearing test indices %d and %d assigned to %r' %
(hearing_test_audio_index1,
hearing_test_audio_index2, participant))
session['hearing_test_audio_index1'] = utilities.encrypt_data(
hearing_test_audio_index1)
session['hearing_test_audio_index2'] = utilities.encrypt_data(
hearing_test_audio_index2)
break
return render_template('hearing_screening.html')
elif request.method == 'POST':
try:
hearing_test_audio_index1 = session['hearing_test_audio_index1']
hearing_test_audio_index2 = session['hearing_test_audio_index2']
except KeyError as e:
hearing_test_audio_index1 = None
hearing_test_audio_index2 = None
logger.error("Invalid state - %r" % e)
if (int(request.form['audiofile1_tones']) ==
int(int(utilities.decrypt_data(hearing_test_audio_index1)) /
configuration.HEARING_TEST_AUDIO_FILES_PER_TONES)) \
and (int(request.form['audiofile2_tones']) ==
int(int(utilities.decrypt_data(hearing_test_audio_index2)) /
configuration.HEARING_TEST_AUDIO_FILES_PER_TONES)):
logger.info('Hearing test passed - %r' % participant)
participant.set_passed_hearing_test(True)
db.session.commit()
return pre_evaluation_tasks()
else:
logger.info('Hearing test failed - %r' % participant)
participant.set_passed_hearing_test(False)
db.session.commit()
if participant.hearing_test_attempts < app.config[
'MAX_HEARING_TEST_ATTEMPTS']:
flash(
'You answered incorrectly. If you are unable to pass this test, it is likely that your output '
'device (e.g. your headphones) is not producing the full range of frequencies required for this '
'task. Try using better headphones.', 'danger')
else:
if not app.config['HEARING_TEST_REJECTION_ENABLED']:
# They attempted, but they failed, but pass them through since rejection is not enabled
logger.info(
'Hearing test rejection enabled. Passing failed participant to evaluation.'
)
return pre_evaluation_tasks()
return redirect(
url_for('hearing_test',
_method='GET',
_external=True,
_scheme=app.config['PREFERRED_URL_SCHEME']))
def _decode_url(encrypted_url):
# remove /audio/
encrypted_data = encrypted_url[7:]
# remove .wav
encrypted_data = encrypted_data[:-4]
return utilities.decrypt_data(str(encrypted_data))
def hearing_test():
"""
Determines if the user is eligible to take the hearing test (i.e. has not exceeded `MAX_HEARING_TEST_ATTEMPTS`, and
then renders the hearing test, which consists of the assessor counting the tones in two audio files.
If caqe.settings.HEARING_TEST_REJECTION_ENABLED is set to False, then pass them through after they had their 2
attempts.
Returns
-------
flask.Response
"""
participant = get_current_participant(session)
if request.method == 'GET':
if participant.hearing_test_attempts >= app.config['MAX_HEARING_TEST_ATTEMPTS']:
logger.info('Max hearing test attempts reached - %r' % participant)
return render_template('sorry.html', message='Sorry. You have exceed the number of allowed attempts. '
'Please try again tomorrow.')
while True:
hearing_test_audio_index1 = random.randint(configuration.MIN_HEARING_TEST_AUDIO_INDEX,
configuration.MAX_HEARING_TEST_AUDIO_INDEX)
hearing_test_audio_index2 = random.randint(configuration.MIN_HEARING_TEST_AUDIO_INDEX,
configuration.MAX_HEARING_TEST_AUDIO_INDEX)
if hearing_test_audio_index1 != hearing_test_audio_index2:
# encrypt the data so that someone can't figure out the pattern on the client side
logger.info('Hearing test indices %d and %d assigned to %r' %
(hearing_test_audio_index1, hearing_test_audio_index2, participant))
session['hearing_test_audio_index1'] = utilities.encrypt_data(hearing_test_audio_index1)
session['hearing_test_audio_index2'] = utilities.encrypt_data(hearing_test_audio_index2)
break
return render_template('hearing_screening.html')
elif request.method == 'POST':
try:
hearing_test_audio_index1 = session['hearing_test_audio_index1']
hearing_test_audio_index2 = session['hearing_test_audio_index2']
except KeyError as e:
hearing_test_audio_index1 = None
hearing_test_audio_index2 = None
logger.error("Invalid state - %r" % e)
if (int(request.form['audiofile1_tones']) ==
(int(utilities.decrypt_data(hearing_test_audio_index1)) /
configuration.HEARING_TEST_AUDIO_FILES_PER_TONES)) \
and (int(request.form['audiofile2_tones']) ==
(int(utilities.decrypt_data(hearing_test_audio_index2)) /
configuration.HEARING_TEST_AUDIO_FILES_PER_TONES)):
logger.info('Hearing test passed - %r' % participant)
participant.set_passed_hearing_test(True)
db.session.commit()
return pre_evaluation_tasks()
else:
logger.info('Hearing test failed - %r' % participant)
participant.set_passed_hearing_test(False)
db.session.commit()
if participant.hearing_test_attempts < app.config['MAX_HEARING_TEST_ATTEMPTS']:
flash('You answered incorrectly. If you are unable to pass this test, it is likely that your output '
'device (e.g. your headphones) is not producing the full range of frequencies required for this '
'task. Try using better headphones.', 'danger')
else:
if not app.config['HEARING_TEST_REJECTION_ENABLED']:
# They attempted, but they failed, but pass them through since rejection is not enabled
logger.info('Hearing test rejection enabled. Passing failed participant to evaluation.')
return pre_evaluation_tasks()
return redirect(url_for('hearing_test', _method='GET', _external=True, _scheme=app.config['PREFERRED_URL_SCHEME']))
def _decode_url(encrypted_url):
# remove /audio/
encrypted_data = encrypted_url[7:]
# remove .wav
encrypted_data = encrypted_data[:-4]
return utilities.decrypt_data(str(encrypted_data))
