Outside of the Prophets we have absolutely no indication that the authors wrote what they audibly heard God tell them to write. It was inspiration, not dictation.
I understand what you are saying, and I kind of agree, though not entirely!
We do read in the Bible something about opening our mouth and God filling it and also something about finding the Word of God on our lips, so we should have some understanding the God can control what comes out even if we don't actually hear "dictation" from Him!
That being said, I still can hear a small voice speaking to me in words, and we also see where specific words are written and credited to God in the Bible. Also, when I do hear from Him those specific words coming from Him often come as little sayings and such. So if I write something like say,
HOW MANY BIRDS SING IN THE FOREST? ANSWER: ALL OF THEM WHEN THEY’RE IN THE RIGHT MOOD.
And I don't actually quote God, it can still be from God. That is to say, we don't actually have to know God said something to for it to be from Him!!!
Yet - there are things said in the Bible that we know are not from God!!! Satan is quoted in the Bible, and if we actually call the Bible the Word of God, then we have credited God with Satan's words! And we can find lots of other examples of that. A discourse between Job and few others make up the majority of the words written in the book of Job. And at the end we read where God comes down and seem fairly upset with them and their discourse. So are we fine with saying the Book of Job, for the most part, can be thought of as "The Word of God"?
I believe there is a lot to learn from the book of Job, but much of it is what not to do and say. Yet I have read Christian books using things said by Job as if they were said by God. If what Job said was from God, as in the Word of God, then why was God upset with what was said?
The writing and recording of it could still be inspired and even control by God, yet the words might not and are not actually His words!! They are words of Job and a some others!
So should we actually call the Bible the Word of God or should we instead referred to it as Holy or Sacred writings? I feel the we should keep the Scriptures as the Scriptures or perhaps Holy Scriptures. They are that!
Now, if we get zealous for the Scriptures, as opposed to being zealous for God, what might we be do? Could we start making the Scriptures God instead of writings pointing us to God? I think that has happened! Certainly people in the past have started ignoring the importance of the Scriptures, and Paul talks about the importance of reading and studying them, and that I am in full agreement with. Yet writings are ink on pages and God is spirit. Writings are records, and God is a being. Writing don't think, but who can fully understand the depths of God?
The Lord once told me,
"They say, 'I KNOW, I KNOW, BUT WHO DO THEY KNOW?'"
It is a who that we are trying to know! Ok, we need to know the book also, but knowing a book is not like knowing a person, and we absolutely need to know a person, Jesus Christ, whose name is called the Word of God!
Isn't that what we are trying to figure out?