Python wave.openfp() Examples
The following are 7
code examples of wave.openfp().
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Example #1
Source File: sndhdr.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
def test_wav(h, f): import wave # 'RIFF' <len> 'WAVE' 'fmt ' <len> if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': return None f.seek(0) try: w = wave.openfp(f, 'r') except (EOFError, wave.Error): return None return ('wav', w.getframerate(), w.getnchannels(), w.getnframes(), 8*w.getsampwidth())
Example #2
Source File: sndhdr.py From ironpython3 with Apache License 2.0 | 5 votes |
def test_wav(h, f): import wave # 'RIFF' <len> 'WAVE' 'fmt ' <len> if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': return None f.seek(0) try: w = wave.openfp(f, 'r') except (EOFError, wave.Error): return None return ('wav', w.getframerate(), w.getnchannels(), w.getnframes(), 8*w.getsampwidth())
Example #3
Source File: _common.py From pytorch-asr with GNU General Public License v3.0 | 5 votes |
def rebuild(self, mode): import wave logger.info(f"rebuilding \"{mode}\" ...") wav_manifest, txt_manifest = dict(), dict() for wav_file in self.target_path.joinpath(mode).rglob("*.wav"): uttid = wav_file.stem with wave.openfp(str(wav_file), "rb") as wav: samples = wav.getnframes() wav_manifest[uttid] = (str(wav_file), samples) txt_file = str(wav_file).replace('wav', 'txt') if Path(txt_file).exists(): txt_manifest[uttid] = (str(txt_file), '-') self.make_manifest(mode, wav_manifest, txt_manifest)
Example #4
Source File: _common.py From pytorch-asr with GNU General Public License v3.0 | 5 votes |
def process_text_only(self, mode): import wave logger.info(f"processing text only from \"{mode}\" ...") wav_manifest = dict() for wav_file in self.target_path.joinpath(mode).rglob("*.wav"): uttid = wav_file.stem with wave.openfp(str(wav_file), "rb") as wav: samples = wav.getnframes() wav_manifest[uttid] = (str(wav_file), samples) txt_manifest = self.get_transcripts(mode) self.make_manifest(mode, wav_manifest, txt_manifest)
Example #5
Source File: sndhdr.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 5 votes |
def test_wav(h, f): import wave # 'RIFF' <len> 'WAVE' 'fmt ' <len> if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': return None f.seek(0) try: w = wave.openfp(f, 'r') except (EOFError, wave.Error): return None return ('wav', w.getframerate(), w.getnchannels(), w.getnframes(), 8*w.getsampwidth())
Example #6
Source File: audioread.py From pb_chime5 with MIT License | 5 votes |
def read_from_byte_string(byte_string, dtype=np.dtype('<i2')): """ Parses a bytes string, i.e. a raw read of a wav file :param byte_string: input bytes string :param dtype: dtype used to decode the audio data :return: np.ndarray with audio data with channels x samples """ wav_file = wave.openfp(BytesIO(byte_string)) channels = wav_file.getnchannels() interleaved_audio_data = np.frombuffer( wav_file.readframes(wav_file.getnframes()), dtype=dtype) audio_data = np.array( [interleaved_audio_data[ch::channels] for ch in range(channels)]) audio_data = audio_data.astype(np.float32) / np.max(audio_data) return audio_data
Example #7
Source File: _common.py From pytorch-asr with GNU General Public License v3.0 | 4 votes |
def split_wav(self, mode): import io import wave segments_file = self.recipe_path.joinpath("data", mode, "segments") logger.info(f"processing {str(segments_file)} file ...") segments = dict() with smart_open(segments_file, "r") as f: for line in tqdm(f, total=get_num_lines(segments_file), ncols=params.NCOLS): split = line.strip().split() uttid, wavid, start, end = split[0], split[1], float(split[2]), float(split[3]) if wavid in segments: segments[wavid].append((uttid, start, end)) else: segments[wavid] = [(uttid, start, end)] wav_scp = self.recipe_path.joinpath("data", mode, "wav.scp") logger.info(f"processing {str(wav_scp)} file ...") manifest = dict() with smart_open(wav_scp, "r") as rf: for line in tqdm(rf, total=get_num_lines(wav_scp), ncols=params.NCOLS): wavid, cmd = line.strip().split(" ", 1) if not wavid in segments: continue cmd = cmd.strip().rstrip(' |').split() if cmd[0] == 'sph2pipe': cmd[0] = str(SPH2PIPE_PATH) p = sp.run(cmd, stdout=sp.PIPE, stderr=sp.PIPE) fp = io.BytesIO(p.stdout) with wave.openfp(fp, "rb") as wav: fr = wav.getframerate() nf = wav.getnframes() for uttid, start, end in segments[wavid]: fs, fe = int(fr * start - SAMPLE_MARGIN), int(fr * end + SAMPLE_MARGIN) if fs < 0 or fe > nf: continue wav.rewind() wav.setpos(fs) signal = wav.readframes(fe - fs) p = uttid.find('-') if p != -1: tar_path = self.target_path.joinpath(mode, uttid[:p]) else: tar_path = self.target_path.joinpath(mode) tar_path.mkdir(mode=0o755, parents=True, exist_ok=True) wav_file = tar_path.joinpath(uttid + ".wav") with wave.open(str(wav_file), "wb") as wf: wf.setparams(wav.getparams()) wf.writeframes(signal) manifest[uttid] = (str(wav_file), fe - fs) return manifest