No speaker labels in txt format with diarization enabled

[veenified]

I have been using WhisperX for transcribing multi-speaker audio files and I enabled diarization to distinguish between different speakers. However, I noticed that the TXT format output does not include speaker labels, which are crucial for my use case to identify who is speaking at any given time.

Could you provide some insights on why the speaker labels are missing in the TXT output when diarization is enabled? Is this an intended behavior or a potential oversight? Additionally, if this feature is not currently supported, are there any plans to include speaker labels in future updates of the TXT format output?

Thank you for your assistance and for the great work on this tool!

PS: Here's a sample command if it helps...
whisperx --hf_token <your_hf_token> --print_progress True --language en --diarize --compute_type int8 voice_chat.mp4 -o ~/transcriptions -f txt --min_speakers 4 --max_speakers 12

[veenified]

In case anyone is interested...
I put together some python that formats the "srt" format into something closer to what I am looking for from the "txt" format.

import re
import sys
import os

def reformat_srt(file_path):
    with open(file_path, 'r') as file:
        content = file.read()

    pattern = re.compile(r'\d+\n(\d{2}:\d{2}:\d{2},\d{3}) --> (\d{2}:\d{2}:\d{2},\d{3})\n(\[SPEAKER_\d+\]: .+?(?=\n\n|\Z))', re.DOTALL)
    matches = pattern.findall(content)

    # Remove underline markup
    matches = [(start, end, re.sub(r'<u>|</u>', '', text.strip())) for start, end, text in matches]

    # Keep messages in the original order
    unique_lines = []
    seen = set()
    for _, _, text in matches:
        if text not in seen:
            seen.add(text)
            unique_lines.append(text)

    reformatted = '\n'.join(unique_lines)

    return reformatted

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python clean_srt.py <srt_input_filename> [output_directory]")
        sys.exit(1)

    input_file_path = sys.argv[1]
    output_dir = sys.argv[2] if len(sys.argv) > 2 else os.getcwd()

    # Generate the output filename
    base_name = os.path.basename(input_file_path)
    name, _ = os.path.splitext(base_name)
    output_file_path = os.path.join(output_dir, f"{name}-clean.txt")

    reformatted_content = reformat_srt(input_file_path)

    with open(output_file_path, 'w') as file:
        file.write(reformatted_content)

[SeeknnDestroy]

I have been using WhisperX for transcribing multi-speaker audio files and I enabled diarization to distinguish between different speakers. However, I noticed that the TXT format output does not include speaker labels, which are crucial for my use case to identify who is speaking at any given time.

Could you provide some insights on why the speaker labels are missing in the TXT output when diarization is enabled? Is this an intended behavior or a potential oversight? Additionally, if this feature is not currently supported, are there any plans to include speaker labels in future updates of the TXT format output?

Thank you for your assistance and for the great work on this tool!

PS: Here's a sample command if it helps...

whisperx --hf_token <your_hf_token> --print_progress True --language en --diarize --compute_type int8 voice_chat.mp4 -o ~/transcriptions -f txt --min_speakers 4 --max_speakers 12

Can you please elaborate on text format? Are you using whisperx on command line or as python library? Could you share example snippet and what are your conclusions about this?

[veenified]

@SeeknnDestroy,
I am using WhisperX from the command line, as I included in the issue description and example command.
The text format that I would like to see when the diarization is enabled via the --diarize flag is something like this:

[SPEAKER_08]: Can you show me Jill's last email on that subject.
[SPEAKER_05]: Sure, let me share my screen. I don't know if there's a response to my questions, but we can review it together.

The python that I included above is the workaround I implemented for the time being, which take the "srt" format and simplifies it to a "txt" format that includes SPEAKER labels, like the example I included above.

[nkilm]

@veenified Currently WriteTXT class writes only the transcripts to the file.

We can modify it as follows,

class WriteTXT(ResultWriter):
    extension: str = "txt"

    def write_result(self, result: dict, file: TextIO, options: dict):
        for segment in result["segments"]:
            start = format_timestamp(segment["start"])
            end = format_timestamp(segment["end"])
            speaker = segment.get("speaker", "Unknown")
            text = segment["text"].strip()
            print(f"{start}\t{end}\t{speaker}\t{text}", file=file, flush=True)

The output .txt will be in this format, with start-end timestamps along with speaker labels.