This doesn't seem right but I welcome anyone to correct me.
You're talking about liaisons. This occurs when the final letter is a consonant, and if silent, is pronounced with the next word if the next word begins with a vowel or silent h.
Parle ends in a vowel and not a consonant, likewise, francais does not begin with a verb or silent h.
I think the robo reader is over emphasizing the "l" or is incorrectly reading the "e" at the end of the parle.
Be careful! “lire” is the infinitive form of the verb “to read”.
“I read” = “je lis” So, “Je lis le français.”, but I would more likely say “I read in French.” https://dictionary.reverso.net/english-french/I+read+French
Pronouns take verbs with different endings. In French more of the pronouns have their own verb endings then in English. We just have to memorize the verb conjugations.
je parle = I speak
tu parles = you speak (singular familiar form)
il parle = he speaks, elle parle = she speaks
nous parlons = we speak
vous parlez = you speak ( plural or formal singular)
ils parlent or elles parlent = they speak
All the tts voices read all the sentences as though reading a book. The sentence is about the writer and not the reader, so no, the female voice could say “Je suis français.” because it was reading a sentence written by a male. Here, the word “français” refers to the language and not the person in the sentence “Je parle français.” Scroll to the top of the page to listen again. She says it correctly without the e ending.
The word "francais" does NOT describe girl so it does not need to match the gender of girl. I don't believe it has anything to do with who wrote it. francais it the. name of a language so it is its own noun with its own gender. That is, it is NOT used to make the girl a French girl but is totally separate from the word girl as it is the name of a language.