| |
|
|
| import wave |
| import subprocess |
| from contextlib import closing |
|
|
|
|
| def get_wavfile_length(path): |
| with closing(wave.open(path)) as reader: |
| nfr = reader.getnframes() |
| frate = reader.getframerate() |
| return nfr / frate |
|
|
|
|
| def get_labels(path, pos): |
| with open(path, "rt") as infh: |
| labels = [(pos, "silence")] |
| for spam in infh: |
| |
| start, _, label = spam.strip().split() |
| labels.append((pos + float(start), label)) |
| return labels |
|
|
|
|
| def make_single_track(): |
| labels = [] |
| soxcmd = ["sox"] |
| with open("fileids", "rt") as infh: |
| pos = 0.0 |
| for spam in infh: |
| fileid = spam.strip() |
| path = fileid + ".wav" |
| soxcmd.append(path) |
| nsec = get_wavfile_length(path) |
| path = fileid + ".lab" |
| labels.extend(get_labels(path, pos)) |
| pos += nsec |
| with open("single_track.lab", "wt") as outfh: |
| start_time, label = labels[0] |
| for end_time, next_label in labels[1:]: |
| if next_label != label: |
| outfh.write("%.3f\t%.3f\t%s\n" % (start_time, end_time, label)) |
| start_time = end_time |
| label = next_label |
| outfh.write("%.3f\t%.3f\t%s\n" % (start_time, pos, label)) |
| soxcmd.extend(["-r", "16000", "single_track.raw"]) |
| subprocess.run(soxcmd) |
|
|
|
|
| if __name__ == "__main__": |
| make_single_track() |
|
|
