Phase Shift AV — spoken word post production, near Bristol, UK
Phase Shift AV
Titles What we do Clients Get in touch

We edit the extraordinary and master the incredible.

Spoken word post production near Bristol, UK. Send us the raw recording; we send back a proofed, mastered set of files that passes your publisher's QC first time.

Send us your audio
Twenty plus years of jackets — a slice of what has come through our rooms.
Recent work — a few years of it. We've been at this for twenty plus years. Podcasts have their own section.
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Cover art and recorded content remain the property of the respective publishers and rights holders, and are shown here to credit work delivered. No endorsement or affiliation is implied. Any title will be removed on request — get in touch.

Hear the difference.

Same recording, before and after. Switch between them and press play.

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Recent work.

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Podcasts, every week

Fiction shows on a standing schedule — episodes in, mastered, out on release day.
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Episodes delivered — {{ s.title }}
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Titles we've worked on have won awards, charted and made critics' lists.
APA
Audie Awards
AudioFile
Earphones Award
SOVAS
Voice Arts Awards
IWFF
Best sound effects
Audible
Best sellers
The Times
Best audiobooks

What we do.

Take any stage or the whole chain. If you want audiobooks or podcasts professionally edited, we can help.

The chain
De-Noise & Pre-processing Full Edit & Master External Proofing Pickups & Corrections Mastering & Remastering Metadata & Contents
Formats
Solo & Dual Readers Multicast & Duet Parallel Session Editing Restoration Multi-voice, FX & Music Placement Podcasts
What each stage involves →

Who sends us audio.

Publishers and facilities houses. When the schedule is fuller than the rooms are. Overflow editing and post, masters delivered to your spec, in your naming, on your date. We fit into your pipeline rather than asking you to learn ours.

Freelance narrators. De-noised, edited, spec'd and handed back to you, ready to upload wherever it's going. You keep the client; we do the hours.

Independent authors. You've recorded your book, possibly more than once. We make it sound like a studio release and give you files that pass QC first time.

Podcast producers. Episode editing, FX and supplied music placed, loudness-compliant masters, at a turnaround that survives a weekly release.

Boutique and first-time publishers. A small list, or a first one. We'll help you set the spec, tell you what QC will reject before it does, and stay consistent across the catalogue as it grows.

New in Aug 2026

Faster turnaround. Your audio never leaves the building.

Synthetic voices are getting faster and cheaper. Keeping real narrators competitive is why we built any of this.

Custom tools and state-of-the-art workflows, built to take the bottlenecks out of post — the parts of the job that are rules rather than craft. They do the finding; an editor still makes every call.

Twenty years of doing it by hand is long enough to know which parts are judgement and which are just time. Catching things at the edit rather than at the proof means less slips through and far less gets done twice — on a book with a lot of restarts, that's hours back. The proofer still hears the book. They just aren't hunting.

No generative AI, and nothing is used to train anything.
We archive your edits and masters, so pickups years later are easy. Everything else is deleted when the job closes.
Embargoed and NDA titles handled the same way. Happy to sign yours.

Same editors, same master. You just get it sooner.

Tell us what you've got and when you need it.

We'll tell you straight whether we can help. Small team based near Bristol in the UK, working internationally.

Email us +44 (0)7824 904333
Phaseshift AV — spoken-word post production, near Bristol, UK Voice-to-text, text-to-voice and AI-assisted production on request No cookies, no tracking — privacy