← All tools

AudioBookmaker

From a narrator reading aloud to finished audiobook chapters, checked paragraph by paragraph against the book.

  • Windows
  • Android tablet

AudioBookmaker is the studio tool we built for our own audiobooks. It is not sold off the shelf. If you are an author or a narrator and want to know more, tell us about your book.

Contact us about AudioBookmaker

AudioBookmaker turns a narrator reading aloud into finished audiobook chapters, and shows, paragraph by paragraph, what has been recorded, checked, approved, and what is still missing. The engineer runs it on a Windows PC beside the microphone; the narrator holds an Android tablet with the page on it.

The book is the authority. Speech recognition listens to every take and lines it up with the manuscript, word by word. Where the reading and the page differ, AudioBookmaker lists the difference for the author to decide. It never rewrites the book to match the recording, and never edits the recording to match the book.

Every picture on this page is the shipped panel working on a demonstration book: the opening chapters of Pride and Prejudice, which is in the public domain, with stand-in audio in place of a narrator. Our own books stay private until they are published.

The panel in portrait: the book’s chapters with their progress bars, Chapter 2’s paragraphs each marked P, N and A, and paragraph 3 open with its waveform and approvals.
The recording desk in portrait: the chapter and its paragraphs, STARTS AT THE CHAPTER’S START, the input, the transmitter light, RECORD, RETAKE, RESTART, STOP and the meters.
FOLLOW in portrait during a take: the meters and level history across the top, the page below with the sentence being heard lit, and the quick notes.

The words decide the cut

A narrator can stop, go back and read a line again without touching anything. AudioBookmaker hears what was actually said, finds the best read of every sentence across the takes, and assembles the chapter from them. The buttons are hints; the words decide.

A recording is never changed

Every take is kept exactly as it was recorded, and written to disk as it comes in, so a crash loses at most a second. Cleaning, cutting and mastering are built from the takes, so any of it can be redone without losing a word of the performance.

No language model

The program’s check is plain code and speech recognition, run on our own machine. Nothing is written for the narrator, nothing is read for them, and nothing is approved for them.

The panel

The book, the chapter, the paragraph.

The panel reads left to right. On the left, every chapter of the book, recorded or not, with its length and a bar of its paragraphs’ states. In the middle, the chapter: its pipeline as a strip of stages from RECORDED to CHECKED, the master’s loudness numbers, and its paragraphs. On the right, the paragraph itself.

Each paragraph carries three marks. P is the program’s check, which we call Program. The second is the reading’s reviewer, and the third is the author, whose word is final. A paragraph is done when the author has approved the audio it has now.

  • The paragraph list filters to what needs someone: the reviewer, the author, the flagged, the missing.
  • The paragraph’s words are coloured by how they were read: violet where the narrator said another word, struck through where a word is not in the master at all.
  • Its waveform plays from wherever you click, and the word under the playhead is lit as it plays.
  • An approval names the exact audio it heard. Re-cut that audio, or change the paragraph in the manuscript, and the approval goes stale and asks to be heard again.
The panel in landscape: Pride and Prejudice’s chapters on the left, Chapter 2 in the middle with every paragraph marked P, N and A, and paragraph 3 on the right, where the page says “said” and the reading said “cried”, listed under READ VS PAGE.
Chapter 2: approved by the narrator, most of it by the author. Paragraph 3 was read with one word different.

Program’s check

The first listener is a program, and it tells you why.

Program listens to every master against the page. It passes a paragraph when every sentence of it is in the master, nothing in it needs cutting (no false start, no phrase read twice, no stretch out of step with the page), and nothing in its audio is severe.

When it doesn’t pass, it says what it heard and where, with the time in the master. A word or two read differently is not a fault: it is listed for the author to decide, not flagged.

  • The audio check listens for clicks, breaths, plosive pops, level jumps at a join and dropouts, and puts each one on the waveform as a tick you can click to hear.
  • Every master is measured against the audiobook stores’ numbers: loudness, peak and noise floor.
  • A person can approve over a red P, and the record says it was over Program’s flag.
Chapter 3, paragraph 9 flagged: PROGRAM’S CHECK: TO LISTEN TO lists a CUT and a REPEAT at 5:22, where the first words were read twice, and a pickup verdict has rejected it.
A false start, found and timed. The paragraph waits for a pickup.
Chapter 3, paragraph 18: a severe click marked on the waveform at 9:41.1, 70.2 dB over its surroundings, with a CLEAN verdict on it.
A click, on the waveform where it happened.

RECORD

A recording desk that knows the book.

The desk arms a chapter and cues the paragraph the narrator starts at. RECORD, PAUSE, RETAKE, RESTART and STOP are big, and a foot pedal or a presentation clicker can be the retake button. Nothing is modal, and only STOP ends a take.

The meters run the mic test’s checks on every sample as it is written: peak and RMS against their targets, clips, the noise floor against the stores’ limit, dropouts, elapsed time, and the disk space left in hours.

  • The transmitter’s noise-cancelling light is declared on the desk and checked against the room: a floor that sounds like the other setting puts a line on the desk.
  • MONITOR plays the microphone to the engineer’s headset, and TALK speaks to the narrator’s tablet. Neither ever touches the take.
  • Every take lands in its own session folder with its marks, and a long take rolls on into new files without a gap.
The RECORD desk on Chapter 6: STARTS AT THE CHAPTER’S START, the wireless microphone as input, the transmitter light GREEN, the CHECK row, the transport, and the PEAK and RMS meters with the CLIPS, FLOOR, DROPOUTS, ELAPSED, DISK FREE and MARKS tiles.
Armed on Chapter 6, ready to record.

FOLLOW

The engineer reads along while the program listens.

When a take opens, the panel turns into FOLLOW: the chapter’s page, with the sentence Program hears now lit and kept a third of the way down, and the meters beside it, big. Read sentences get a quiet green underline; a skipped one turns red; words heard differently turn violet as they come in.

Under the page runs a caption of the last words heard, so a slip can be caught without hunting for it. Tap any sentence to hear it straight out of the take that is still recording, or to suggest a retake.

  • Quick notes for the narrator, one tap each: closer to the mic, back off a bit, louder, softer, slow down, take a break, sounds great. Each fades from the narrator’s page after a few seconds and never moves it.
  • The level history shows the last minute, so a drift or a quiet passage is a shape, not a number.
  • A skipped sentence goes straight onto the pickup list.
FOLLOW during a take of Chapter 6: the page with read sentences underlined in green and the current sentence lit, lag 0.4 s, the PEAK and RMS meters, the level history, the tiles, the transport, one skipped sentence under PICKUPS, and the quick notes.
Thirty-seven seconds into a take, with the program 0.4 s behind the reader.

CHECK

Five by five before the first word.

Before a session, a short check proves the chain, and it is never a take. It measures the room with nobody speaking, has the narrator read the same two sentences every session, and asks for one loud line.

Each step is green, amber or red, with its number, and says what to do while it records. Everything green is 5 BY 5. The check never blocks RECORD; the desk just says how long ago the last one was.

  • CHAIN: the right microphone, its format, the transmitter light looked at, the tablet connected, hours of disk, and Program ready.
  • ROOM TONE: the floor, hum, rumble and any sound in the room.
  • THE PASSAGE: level, clicks, plosives and breaths, whether Program heard the words, and the voice compared with the reference check and last session’s, so a change of distance or angle shows.
  • THE SHOUT, and the TABLET seen both ways up.
The CHECK view: CHAIN amber (5 of 6 good, the tablet not connected), ROOM TONE green at -72.1 dBFS, THE PASSAGE green with Program hearing 23 of 23 words and the voice matching the reference and last session, THE SHOUT green at -8.0 dBFS, TABLET not yet seen.
Four steps green. The tablet isn’t connected yet.

CHARACTER

One character’s lines, all of them, in one voice.

CHARACTER lists everyone who speaks in the book with how many lines they have, from the page’s own speaker tags. Pick one and their lines come up in book order, each with the line before it as the cue and HEAR to play just that line out of the master.

RECORD RUN takes the narrator through that character’s lines one after another, so the voice holds from the first line to the last. The cut still comes from the words.

The CHARACTER view: Elizabeth (64 lines) picked from a row of characters, her lines listed with their chapter, paragraph, cue and HEAR, the VERDICT picker and RECORD RUN.
Elizabeth, 64 lines, each with its cue.

NAMES and PAGE

Every name, every time it is spoken.

NAMES lists every name in the book with how often it is spoken. Pick one and every occurrence lists in listening order, with its time in the master and what the recognizer heard. Tap one and it opens at that word, playing from just before it. PLAY ALL plays them back to back, so a name said two ways stands out.

PAGE is a report on the manuscript itself, for the author: doubled words, likely typos, tables, numerals, quote tags, formatting. It never edits the manuscript.

The NAMES view with Bingley picked: 37 occurrences listed by chapter and paragraph, each with its time and what was heard.
Bingley, all 37 times.
The PAGE view: notes on the manuscript grouped as DOUBLED WORDS and FORMATTING, each with its chapter and paragraph.
Notes on the page, for the author.

The narrator’s tablet

The page, the session buttons, and nothing else.

The narrator holds an Android tablet. It shows the chapter’s page and the session’s controls, and nothing from the processor: no lit sentence, no meters, no red skips. The narrator reads; the engineer watches.

The type size is the narrator’s, by pinch or A− and A+, and the place on the page survives a turn of the tablet, a pause or a reconnect. During a take the controls fade back after a few seconds so the page is mostly words, and a resting thumb can’t stop it.

  • The tablet runs the session just as the desk does: arm, cue a paragraph by tapping it, record, pause, retake, restart, stop.
  • Small lights at the page’s edge stay quiet unless the narrator should look: too loud, a replay the engineer suggested, or the program lost on the page.
  • REVIEW plays any paragraph with its waveform and flags, and the author approves from there. The tablet never writes an approval itself: it asks the panel, which checks that the audio it names is still the audio it holds.
  • It finds the panel on the home network by itself. Nobody types an address.

What AudioBookmaker is for

The DELIVERY view: COVER found, CREDITS with one placeholder, SAMPLE not picked, and RECORDED: 8 of 14 sections not recorded, each a button that goes to it.

Every paragraph accounted for

Each paragraph of the book shows whether it has been recorded, whether the recording matches the page, and who has approved it. A gap is shown as missing, never as done, and DELIVERY lists what still stands between the book and the stores: the cover, the credits, the sample, the sections with no master.

Chapter 4, paragraph 1: Program found a restart and one word read differently, and a pickup verdict has rejected the paragraph until it is read again.

Three checks on every paragraph

The program checks the audio against the page first. Then the reading’s reviewer listens and approves, and the author has the final word. An approval names the exact audio it heard, so if that audio changes, the paragraph asks to be heard again.

The PICKUPS view: three to re-read in Chapters 3 and 4, one to re-cut, one click to clean, each with its reason, who filed it, HEAR, GO, RECORD and RESOLVE.

A pickup list that knows the line

Every judgement carries what to do next: re-read it, re-cut it, clean a click, look at the page, or a note for the author. PICKUPS gathers them by kind, each with the line before it as the cue and HEAR, and RECORD records them one at a time.

The CAST view of a cast reading on Chapter 6: Charlotte’s quotations confirmed and voiced by the Actor, each with REMOVE and CHARACTER.

More than one voice

A book can have more than one reading: a second narrator, or a cast where each character’s lines are read by the person cast for them. The CAST view proposes who speaks each quotation from the page; nothing is cast until someone confirms it. Each reading keeps its own takes and its own approvals.

FOLLOW with a sentence tapped: the bar over the page’s foot reads ¶8.1 with HEAR, SUGGEST RETAKE and CLOSE.

Notes from the desk, not interruptions

Tap a sentence in FOLLOW to hear it straight out of the take that is still recording, or to suggest a retake. The suggestion is one quiet line on the narrator’s page, and a row on the pickup list until it is done.

Changes to the book

The manuscript comes from the author’s own committed copy. When the author revises it, AudioBookmaker notices, and the paragraphs that changed are shown as needing a new read. Nothing recorded against the old page is passed off as matching the new one.

The 3D view

The same demonstration book on other screens: a chapter mastered and waiting for Program to listen, the credits read and approved, and the retail sample being picked.

The plain facts

Who it is for
Authors and narrators turning a finished manuscript into an audiobook.
How you get it
It is our own studio tool, not a product on a shelf. Nothing to download here.
Runs on
A Windows PC for the engineer, in portrait or landscape, and an Android tablet for the narrator, on the same local network.
Made by
Haunted Space Hotel Studios.
Talk to us
Contact us about AudioBookmaker. A person answers.

← All tools