speechSynthesizerClientExample.py

#!/usr/bin/env python3
 
 
 
import argparse
import time
import yarp
 
parser = argparse.ArgumentParser(description='speech synthesizer example')
parser.add_argument('--remote', default='/speechSynthesizer_nws', type=str, help='remote port')
 
args = parser.parse_args()
 
yarp.Network.init()
 
if not yarp.Network.checkNetwork():
    print('Please start a YARP name server first')
    raise SystemExit
 
options = yarp.Property()
options.put('device', 'speechSynthesizer_nwc_yarp')
options.put('local', '/speechSynthesizerExample/client')
options.put('remote', args.remote)
 
device = yarp.PolyDriver(options)
 
if not device.isValid():
    print('Remote device not available')
    raise SystemExit
 
synthesizer = device.viewISpeechSynthesizer()
 
if not synthesizer:
    print('Unable to get ISpeechSynthesizer interface')
    raise SystemExit
 
language = yarp.SVector(1)
 
if not synthesizer.getLanguage(language):
    print("Failed to get current language")
    raise SystemExit
 
print(f"Current language: {language[0]}")  # espeak: en-uk
 
voice = yarp.SVector(1)
 
if not synthesizer.getVoice(voice):
    print("Failed to get current voice")
    raise SystemExit
 
print(f"Current voice: {voice[0]}") # espeak: english-mb-en1
 
speed = yarp.DVector(1)
 
if not synthesizer.getSpeed(speed):
    print("Failed to get current speed")
    raise SystemExit
 
print(f"Current speed: {speed[0]}")
 
pitch = yarp.DVector(1)
 
if not synthesizer.getPitch(pitch):
    print("Failed to get current pitch")
    # not implemented in PiperSynthesizer
 
print(f"Current pitch: {pitch[0]}")
 
if not synthesizer.setLanguage("english"):
    print("Failed to set language to English")
    raise SystemExit
 
print("Language set to English")
 
if not synthesizer.setSpeed(1.0):
    print("Failed to set speed to 1.0")
    raise SystemExit
 
print("Speed set to 1.0")
 
text = "Hello, world! This is a test of the speech synthesizer."
sound = yarp.Sound()
 
if not synthesizer.synthesize(text, sound):
    print("Failed to synthesize speech")
    raise SystemExit
 
time.sleep(4.0) # Wait for synthesis to complete
 
if not synthesizer.setSpeed(0.5):
    print("Failed to set speed to 0.5")
    raise SystemExit
 
print("Speed set to 0.5")
 
if not synthesizer.synthesize(text, sound):
    print("Failed to synthesize speech after setting speed to 0.5")
    raise SystemExit
 
time.sleep(6.0) # Wait for synthesis to complete
 
if not synthesizer.setSpeed(2.0):
    print("Failed to set speed to 2.0")
    raise SystemExit
 
print("Speed set to 2.0")
 
if not synthesizer.synthesize(text, sound):
    print("Failed to synthesize speech after setting speed to 2.0")
    raise SystemExit
 
time.sleep(2.0) # Wait for synthesis to complete
 
if not synthesizer.setLanguage("spanish"):
    print("Failed to set language to Spanish")
    raise SystemExit
 
print("Language set to Spanish")
 
if not synthesizer.synthesize(text, sound):
    print("Failed to synthesize speech in Spanish")
    raise SystemExit
 
time.sleep(4.0) # Wait for synthesis to complete
 
if not synthesizer.setVoice("lessac"):
    print("Failed to set voice to lessac")
    raise SystemExit
 
print("Voice set to lessac")
 
if not synthesizer.synthesize("Oh hello there!", sound):
    print("Failed to synthesize speech with lessac voice")
    raise SystemExit
 
time.sleep(2.0) # Wait for synthesis to complete
 
device.close()