Gradle FLAML Plugin

A utility plugin for Gradle, allowing lightweight management of speech data in FLAC format and corresponding metadata in YAML format (see below).

Prerequisites

Java (8 or newer) and SoX must be installed. FLAC must be installed for testing.

Plugin Usage

See https://plugins.gradle.org/plugin/org.m2ci.msp.flaml

Configuration

This plugin adds a flaml extension, which is configured with the (relative) paths to a FLAC and YAML file like this:

flaml {
  flacFile = 'foobar.flac'
  yamlFile = 'foobar.yaml'
}

FLAML Tasks

Applying this plugin to a project adds several tasks, which are configured as follows.

extractLabFiles - Extracts XWaves lab files from YAML

Inputs

• yamlFile, default: flaml.yamlFile

Outputs

• destDir, default: layout.buildDirectory.dir('lab')

extractTextFiles - Extracts text files from YAML

Inputs

• yamlFile, default: flaml.yamlFile

Outputs

• destDir, default: layout.buildDirectory.dir('text')

extractTextGrid - Converts YAML to single Praat TextGrid file

Inputs

• flacFile, default: flaml.flacFile
• yamlFile, default: flaml.yamlFile

Outputs

• textGridFile, default: layout.buildDirectory.file("${project.name}.TextGrid")

extractWavFiles - Extracts WAV files from FLAC+YAML

Inputs

• flacFile, default: flaml.flacFile
• yamlFile, default: flaml.yamlFile

Outputs

• destDir, default: layout.buildDirectory.dir('wav')

generateComments - Generates comments as Properties file

Inputs

• properties, default: (empty)

Outputs

• destFile, default: layout.buildDirectory.file('comments.properties')

generateFlac - Generates FLAC from WAV file collection

Inputs

• srcFiles, default: layout.buildDirectory.dir('wav')
• commentsFile, default: generateComments.destFile

Outputs

• flacFile, default: layout.buildDirectory.file("${project.name}.flac")

generateYaml - Generates YAML from WAV file collection

Inputs

• srcFiles, default: generateFlac.srcFiles
• commentsFile, default: generateComments.destFile

Outputs

• yamlFile, default: layout.buildDirectory.file("${project.name}.yaml")

generateYamlFromTextGrid - Generates YAML from TextGrid

Inputs

• srcFile, default: extractTextGrid.textGridFile

Outputs

• yamlFile, default: layout.buildDirectory.file("${project.name}.yaml")

injectSegments - Injects lab files into YAML

Inputs

• labDir, default: extractLabFiles.destDir
• yamlSrcFile, default: flaml.yamlFile

Outputs

• yamlDestFile, default: layout.buildDirectory.file("${project.name}.yaml")

injectText - Injects text files into YAML

Inputs

• textDir, default:, extractTextFiles.destDir
• yamlSrcFile, default: flaml.yamlFile

Outputs

• yamlDestFile, default: layout.buildDirectory.file("${project.name}.yaml")

FLAML (FLAC+YAML) Convention

The FLAML convention assumes a FLAC file and corresponding YAML file describing its contents.

The YAML file is expected to contain a list of utterances, each of which is a map that must have

• a prompt key, where the prompt is used as the basename for individual utterance files
• a text key, containing the orthographic text contents of the utterance
• a start key providing the start time (in seconds) of the utterance in the FLAC file
• an end key, providing the end time (in seconds) of the utterance in the FLAC file
• optionally a segments key, providing a list of segments in the utterance, where each segment is a map that must have
  • a lab key, providing the label of the segment
  • a dur key, providing the duration (in seconds) of the segment

Below is an example:

- prompt: foo
  text: Foo.
  start: 0.1
  end: 0.4
  segments:
  - lab: f
    dur: 0.1
  - lab: u
    dur: 0.2
- prompt: bar
  text: Bar.
  start: 0.6
  end: 0.9
  segments:
  - lab: b
    dur: 0.1
  - lab: a
    dur: 0.1
  - lab: r
    dur: 0.1