It seems that on gTTS there is no option for changing the speech of the text-to-speech apart from the slow argument.
I would like to speed up the sound by 5%. Any suggestion on how I can do it?
Best.
tts_de = gTTS("Hallo, guten tag.", lang = 'de')
tts_de.save("s.mp3")
This isn't actually possible. According to the offical gTTS docs, the only arguments relating to speed gTTS accepts is slow, a boolean specifying whether or not to slow down the playback.
If you're playing the file through Python, however, I'm sure there is a module that supports sped-up playback.
1} Install sox
$ sudo apt-get update
$ sudo apt-get install sox
$ sudo apt-get install libsox-fmt-all
2} use the tempo 1.9 option in sox to play gTTS output 1.9 times faster
#! /usr/bin/python3.5
from gtts import gTTS
import os
mytext='hello'
language = 'en'
myobj = gTTS(text=mytext, lang=language, slow=False)
myobj.save(mytext+".mp3")
os.system("play " + mytext + ".mp3"+" tempo 1.9")
You can use pydub package to speed up your audio.
from pydub import AudioSegment
audio = AudioSegment.from_file("test.mp3", format="mp3")
# or
audio = AudioSegment.from_mp3("test.mp3")
audio.speedup(playback_speed=2.0) # speed up by 2x
# export to mp3
final.export("final.mp3", format="mp3")
