diff --git a/audio-scripts/fetch_test_data.py b/audio-scripts/fetch_test_data.py
deleted file mode 100755
index d300541..0000000
--- a/audio-scripts/fetch_test_data.py
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-# Copyright 2014 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-'''Fetch autotest results and parse perf data for further analysis.
-
-We need to download job tag names from cautotest for this script to download
-test data. Here is how we fetch the data for recent audio tests.
-
-Open http://cautotest/new_tko/#tab_id=spreadsheet_view
-
-Use the following query:
-
-test_name in (
-  'audio_AlsaLoopback',
-  'audio_CrasLoopback')
-AND platform not in ('mario')
-AND test_started_time > '2014-08-01'
-
-Choose "Job tag" as Rows and "Status" as Columns.
-
-Download the result as CSV file by clicking on "Export to CSV".
-'''
-
-import argparse
-import logging
-import re
-import sys
-import threading
-import utils
-
-
-# Regexp for matching test job tag.
-RE_TEST_TAG = re.compile('\d+-chromeos-test/[\w-]+')
-
-# Regexp for matching label keyval from test output. Example label format:
-#   butterfly-release/R34-5120.0.0/audio/audiovideo_LineOutToMicInLoopback
-RE_LABEL = re.compile('([\w-]+)-\w+/R(\d+)-(\d+\.\d+\.\d+)/\w+/(\w+)')
-
-# Regexp for matching perf data from test output.
-RE_PERF_KEYVAL = re.compile('(.+){perf}=(.*)')
-
-# Lock used to prevent output messages get interlaced.
-_output_lock = threading.Lock()
-
-
-def test_tag_iter(input_file):
-  for line in input_file:
-    m = RE_TEST_TAG.search(line)
-    if m is not None:
-      yield m.group(0)
-
-
-def parse_keyval(content):
-  keyval = {}
-  for line in content.splitlines():
-    key, value = line.split('=', 1)
-    keyval[key.strip()] = value.strip()
-  return keyval
-
-
-def parse_test_info_keyval(test):
-  # Get information from label keyval.
-  label = parse_keyval(utils.autotest_cat(test.tag, 'keyval'))['label']
-  match = RE_LABEL.match(label)
-  if match is None:
-    raise RuntimeError('failed to parse label: %s' % label)
-  test.platform, test.release, test.build, test.test_name = match.groups()
-
-
-def parse_perf_result_keyval(test):
-  try:
-    content = utils.autotest_cat(test.tag, '%s/results/keyval' % test.test_name)
-  except IOError:  # File not found on autotest GS storage.
-    return
-
-  for line in content.splitlines():
-    m = RE_PERF_KEYVAL.match(line)
-    if m is not None:
-      test.perf_dict[m.group(1)] = m.group(2)
-
-
-def fetch_and_print_test(tag, output):
-  try:
-    test = utils.TestObject(tag)
-    parse_test_info_keyval(test)
-    parse_perf_result_keyval(test)
-    with _output_lock:
-      output.write('%s\n' % str(test))
-  except Exception:
-    # Log the exception and continue.
-    logging.exception('failed to extract data: %s', tag)
-
-
-def parse_arguments():
-  parser = argparse.ArgumentParser(
-      description='Fetch the test results of specified tests.')
-  parser.add_argument(
-      'input', type=argparse.FileType('r'), nargs='?', default=sys.stdin,
-      help='input file, a list of tests\' tags. (default stdin)')
-  parser.add_argument(
-      '--jobs', '-j', type=int, nargs='?', default=32,
-      help='tests to fetch simultaneously (default 32)')
-  parser.add_argument(
-      '--output', '-o', type=argparse.FileType('w'), nargs='?',
-      default=sys.stdout, help='the output file. (default stdout)')
-  return parser.parse_args()
-
-
-def main():
-  args = parse_arguments()
-  job_iter = (lambda: fetch_and_print_test(t, args.output)
-              for t in test_tag_iter(args.input))
-
-  utils.run_in_pool(job_iter, pool_size=args.jobs)
-
-
-if __name__ == '__main__':
-  main()
diff --git a/audio-scripts/filter_test_data.py b/audio-scripts/filter_test_data.py
deleted file mode 100755
index 2fd7e63..0000000
--- a/audio-scripts/filter_test_data.py
+++ /dev/null
@@ -1,63 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-# Copyright 2014 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-'''Filter test data.
-
-Test results without rms perf data are filtered out.
-Test specific filter logic could also be added into filter_test.
-'''
-
-import argparse
-import re
-import sys
-import utils
-
-
-RE_FORMAT_CONVERSION_RMS = re.compile(r'rms_value_\d+_\d+')
-
-
-def average(numbers):
-  total = 0
-  count = 0
-  for v in numbers:
-    total += v
-    count += 1
-  return total / count
-
-
-def filter_test(test):
-  if len(test.perf_dict) == 0:
-    return None
-  if test.test_name == 'audio_CRASFormatConversion':
-    value = average(float(v) for k, v in test.perf_dict.iteritems()
-                    if RE_FORMAT_CONVERSION_RMS.match(k))
-    test.perf_dict = {'average_rms_value': value}
-  return test
-
-
-def parse_arguments():
-  parser = argparse.ArgumentParser(description='Filter the test data.')
-  parser.add_argument(
-      'input', type=argparse.FileType('r'), nargs='?', default=sys.stdin,
-      help='input file, a list of tests\' tags. (default stdin)')
-  parser.add_argument(
-      '--output', '-o', type=argparse.FileType('w'), nargs='?',
-      default=sys.stdout, help='the output file. (default stdout)')
-  return parser.parse_args()
-
-
-def main():
-  args = parse_arguments()
-  for line in args.input:
-    test = utils.TestObject.parse(line)
-    if test is not None:
-      test = filter_test(test)
-    if test is not None:
-      args.output.write('%s\n' % str(test))
-
-
-if __name__ == '__main__':
-  main()
diff --git a/audio-scripts/utils.py b/audio-scripts/utils.py
deleted file mode 100644
index 3d88fd5..0000000
--- a/audio-scripts/utils.py
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-# Copyright 2014 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-'''Utility functions for audio scripts.'''
-
-import copy
-import logging
-import subprocess
-import threading
-
-
-AUTOTEST_GS_URL_FORMAT = 'gs://chromeos-autotest-results/%s/%s'
-
-_popen_lock = threading.Lock()
-
-
-class TestObject(object):
-  '''Object for holding test data.'''
-
-  def __init__(self, tag):
-    self.tag = tag
-    self.hostname = tag.split('/')[1]
-    self.test_name = ''
-    self.platform = ''
-    self.release = ''
-    self.build = ''
-    self.perf_dict = {}
-
-  @classmethod
-  def parse(cls, line):
-    '''Parse string of comma-separated fields into TestObject.
-
-    The string to be parsed should be in comma-separated format:
-      tag, platform, test_name, hostname, release, build, perf_dict
-
-    Example:
-      11932127-chromeos-test/chromeos4-row2-rack10-host6, link,
-      audio_CrasLoopback, chromeos4-row2-rack10-host6, 37, 5914.0.0,
-      rms_value: 0.668121
-    '''
-    values = [x.strip() for x in line.split(',')]
-    test = cls(values[0])
-    (test.platform, test.test_name, test.hostname, test.release,
-     test.build) = values[1:6]
-    test.perf_dict = dict(x.split(': ', 1) for x in values[6:])
-    return test
-
-  def __str__(self):
-    return ', '.join(str(x) for x in (
-        [self.tag, self.platform, self.test_name, self.hostname, self.release,
-         self.build] +
-        ['%s: %s' % item for item in self.perf_dict.iteritems()]))
-
-  def __repr__(self):
-    return str(self)
-
-  def clone(self):
-    return copy.copy(self)
-
-
-def run_in_pool(functions, pool_size=8):
-  lock = threading.Lock()
-
-  def next_task():
-    try:
-      with lock:
-        return next(functions)
-    except StopIteration:
-      return None
-
-  def work():
-    task = next_task()
-    while task:
-      task()
-      task = next_task()
-
-  threads = [threading.Thread(target=work) for _ in xrange(pool_size)]
-
-  for t in threads:
-    t.start()
-
-  for t in threads:
-    t.join()
-
-
-def execute(args):
-  with _popen_lock:
-    p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-  out, err = p.communicate()
-  return out, err, p.wait()
-
-
-def autotest_cat(job_tag, file_path):
-  gs_url = AUTOTEST_GS_URL_FORMAT % (job_tag, file_path)
-  out, err, ret = execute(['gsutil', 'cat', gs_url])
-  if ret != 0:
-    if 'InvalidUriError' in err:
-      raise IOError(err)
-    else:
-      logging.error('command failed, return code: %d', ret)
-      raise RuntimeError(err)
-  return out