tests/earnings21/README.md

whisper.cpp/tests/earnings21

Earnings-21 is a real-world benchmark dataset that contains 39-hours of long-form English speech, sourced from public earning calls.

This directory contains a set of scripts to evaluate the performance of whisper.cpp on Earnings-21 corpus.

Quick Start

1. (Pre-requirement) Compile whisper-cli and prepare the Whisper model in ggml format.

   $ # Execute the commands below in the project root dir.
   $ cmake -B build
   $ cmake --build build --config Release
   $ ./models/download-ggml-model.sh tiny
   

   Consult whisper.cpp/README.md for more details.

2. Download the audio files.

   $ make get-audio
   

3. Set up the environment to compute WER score.

   $ pip install -r requirements.txt
   

   For example, if you use virtualenv, you can set up it as follows:

   $ python3 -m venv venv
   $ . venv/bin/activate
   $ pip install -r requirements.txt
   

4. Run the benchmark test.

   $ make
   

How-to guides

How to change the inference parameters

Create eval.conf and override variables.

WHISPER_MODEL = large-v3-turbo
WHISPER_FLAGS = --no-prints --threads 8 --language en --output-txt

Check out eval.mk for more details.

How to perform the benchmark test on a 10-hour subset

Earnings-21 provides a small but representative subset (approximately 10-hour audio data) to evaluate ASR systems quickly.

To switch to the subset, create eval.conf and add the following line:

EARNINGS21_EVAL10 = yes

How to run the benchmark test using VAD

First, you need to download a VAD model:

$ # Execute the commands below in the project root dir.
$ ./models/download-vad-model.sh silero-v5.1.2

Create eval.conf with the following content:

WHISPER_FLAGS = --no-prints --language en --output-txt --vad --vad-model ../../models/ggml-silero-v5.1.2.bin