TTS example script for Coqui-AI https://github.com/coqui-ai/TTS which speaks-out a fortune, for testing models and vocoders

say-fortune.sh

#!/bin/bash

# requires https://github.com/coqui-ai/TTS

# Associative arrays for mapping IDs to model and vocoder names
declare -A model_ids=(
  [11]="tts_models/en/ljspeech/tacotron2-DDC"
  [12]="tts_models/en/ljspeech/tacotron2-DDC_ph"
  [15]="tts_models/en/ljspeech/tacotron2-DCA"
  [20]="tts_models/en/ljspeech/neural_hmm"
)

declare -A vocoder_ids=(
  [4]="vocoder_models/en/ljspeech/multiband-melgan"
  [6]="vocoder_models/en/ljspeech/univnet"
)

# Function to display help
usage() {
  cat <<EOF
Usage: $0 [-m <model_id>] [-v <vocoder_id>] [-f <output_file>] [-p] [-r]
Options:
  -m <model_id>   : Model ID (11, 12, 15, 20). Default: Random valid model.
  -v <vocoder_id> : Vocoder ID (4, 5). Default: Random valid vocoder.
  -f <output_file>: Path to save the output file. Default: /tmp/tts_m<model_id>_v<vocoder_id>-YYYYMMDD-HHMMSS.wav
  -p              : Pipe the output to aplay (for audio playback).
  -r              : Randomize valid numbers for model_id and vocoder_id.
  -h, --help      : Display this help message.
Examples:
  $0 -m 12 -v 4 -f /home/user/output.wav
  $0 -r -p
EOF
  exit 1
}

# Check if the provided IDs are valid
model_id=""
vocoder_id=""

while getopts "m:v:f:prh" opt; do
  case ${opt} in
    m )
      model_id=$OPTARG
      ;;
    v )
      vocoder_id=$OPTARG
      ;;
    f )
      out_path=$OPTARG
      ;;
    p )
      pipe_out=true
      ;;
    r )
      # Randomize valid numbers for the model_id and vocoder_id
      random_model_id=$((RANDOM % ${#model_ids[@]} + 10)) # Start from index 10 to avoid conflicts with custom IDs
      random_vocoder_id=$((RANDOM % ${#vocoder_ids[@]} + 3)) # Start from index 3 for vocoders
      model_id=$random_model_id
      vocoder_id=$random_vocoder_id
      ;;
    h )
      usage
      ;;
    \? )
      echo "Invalid option: -$OPTARG" 1>&2
      usage
      ;;
    : )
      echo "Invalid option: -$OPTARG requires an argument" 1>&2
      usage
      ;;
  esac
done

# Validate model_id and vocoder_id
if [[ -z "${model_ids[$model_id]}" ]]; then
  echo "Invalid model ID: $model_id. Valid models: ${!model_ids[@]}"
  usage
fi

if [[ -z "${vocoder_ids[$vocoder_id]}" ]]; then
  echo "Invalid vocoder ID: $vocoder_id. Valid vocoders: ${!vocoder_ids[@]}"
  usage
fi

# Assign out_path if not provided
if [[ -z "$out_path" ]]; then
  out_path="$TEMP/tts_m${model_id}_v${vocoder_id}-$(date "+%Y%m%d-%H%M%S").wav"
else
  # Ensure the provided path is writable
  out_dir=$(dirname "$out_path")
  if [ ! -d "$out_dir" ] || [ ! -w "$out_dir" ]; then
    echo "Invalid output directory: $out_dir"
    usage
  fi
fi

# Retrieve the corresponding model and vocoder names
model_name="${model_ids[$model_id]}"
vocoder_name="${vocoder_ids[$vocoder_id]}"

# Execute the TTS command
text="`fortune -a`"
tts_command="tts --text \"$text\" --model_name \"$model_name\" --vocoder_name \"$vocoder_name\" --out_path \"$out_path\""

if [ "$pipe_out" = true ]; then
  tts_command="$tts_command --pipe_out | aplay"
fi

echo "Executing: $tts_command"
eval "$tts_command"