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demo pydub normalisation

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This commit is contained in:
Matthew Stratford 2021-07-16 23:56:58 +01:00
parent e821df5585
commit 8d98410a6a
1 changed files with 22 additions and 2 deletions
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24
player.py
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@ -34,6 +34,7 @@ from pygame import mixer
from mutagen.mp3 import MP3 from mutagen.mp3 import MP3
from syncer import sync from syncer import sync
from threading import Timer from threading import Timer
from pydub import AudioSegment, effects # Audio leveling!
from helpers.myradio_api import MyRadioAPI from helpers.myradio_api import MyRadioAPI
from helpers.state_manager import StateManager from helpers.state_manager import StateManager
@ -436,12 +437,30 @@ class Player:
# TODO: Update the show plan filenames??? # TODO: Update the show plan filenames???
load_attempt = 0 load_attempt = 0
if not isinstance(loaded_item.filename, str):
return False
while load_attempt < 5: while load_attempt < 5:
load_attempt += 1 load_attempt += 1
try: try:
self.logger.log.info("Loading file: " + self.logger.log.info("Loading file: " +
str(loaded_item.filename)) str(loaded_item.filename))
mixer.music.load(loaded_item.filename)
def match_target_amplitude(sound, target_dBFS):
change_in_dBFS = target_dBFS - sound.dBFS
return sound.apply_gain(change_in_dBFS)
sound = AudioSegment.from_file(loaded_item.filename, "mp3")
normalized_sound = effects.normalize(sound) #match_target_amplitude(sound, -10)
normalized_sound.export("{}-normalised.mp3".format(loaded_item.filename), bitrate="320k", format="mp3")
mixer.music.load("{}-normalised.mp3".format(loaded_item.filename))
except Exception: except Exception:
# We couldn't load that file. # We couldn't load that file.
self.logger.log.exception( self.logger.log.exception(
@ -456,10 +475,11 @@ class Player:
continue # Try loading again. continue # Try loading again.
try: try:
if ".mp3" in loaded_item.filename: if loaded_item.filename.endswith(".mp3"):
song = MP3(loaded_item.filename) song = MP3(loaded_item.filename)
self.state.update("length", song.info.length) self.state.update("length", song.info.length)
else: else:
# WARNING! Pygame / SDL can't seek .wav files :/
self.state.update( self.state.update(
"length", mixer.Sound( "length", mixer.Sound(
loaded_item.filename).get_length() / 1000 loaded_item.filename).get_length() / 1000