if(options.isWithoutSound()) {
    channel.setSound(null, null);
} else {
    AudioAttributes audioAttributes = new AudioAttributes.Builder()
        .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
        .setUsage(AudioAttributes.USAGE_NOTIFICATION).build();
    if(options.isWithDefaultSound()) {
        channel.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION), audioAttributes);
    } else {
        channel.setSound(options.getSound(), audioAttributes);
    }
}