| #!env/bin/python3 |
| |
| # Copyright (c) 2021 Arm Limited. All rights reserved. |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| """ |
| Utility script to convert an audio clip into eval platform desired spec. |
| """ |
| import soundfile as sf |
| |
| from argparse import ArgumentParser |
| from os import path |
| |
| from gen_utils import AudioUtils |
| |
| parser = ArgumentParser() |
| parser.add_argument("--audio_path", help="Audio file path", required=True) |
| parser.add_argument("--output_dir", help="Output directory", required=True) |
| parser.add_argument("--sampling_rate", type=int, help="target sampling rate.", default=16000) |
| parser.add_argument("--mono", type=bool, help="convert signal to mono.", default=True) |
| parser.add_argument("--offset", type=float, help="start reading after this time (in seconds).", default=0) |
| parser.add_argument("--duration", type=float, help="only load up to this much audio (in seconds).", default=0) |
| parser.add_argument("--res_type", type=AudioUtils.res_data_type, help=f"Resample type: {AudioUtils.res_type_list()}.", default='kaiser_best') |
| parser.add_argument("--min_samples", type=int, help="Minimum sample number.", default=16000) |
| parser.add_argument("-v", "--verbosity", action="store_true") |
| args = parser.parse_args() |
| |
| def main(args): |
| audio_data, samplerate = AudioUtils.load_resample_audio_clip(args.audio_path, |
| args.sampling_rate, |
| args.mono, args.offset, |
| args.duration, args.res_type, |
| args.min_samples) |
| sf.write(path.join(args.output_dir, path.basename(args.audio_path)), audio_data, samplerate) |
| |
| if __name__ == '__main__': |
| main(args) |