You can absolutely ruin a podcast with sound effects.
Too many. Too loud. Too obvious. Dropped into places where they have no business being. Suddenly, instead of pulling a listener deeper into the story, you’re reminding them that somebody is sitting behind a computer adding noises to it.
That’s the opposite of what good sound design is supposed to do.
The best podcast sound effects, music and sound design don’t fight for attention. They shape what the listener feels without constantly announcing themselves.
A footstep can put someone on a gravel road. A low musical bed can make a perfectly ordinary sentence feel ominous. A strange, almost-recognizable sound can make something feel slightly wrong before the listener has any idea why.
And sometimes the most powerful thing you can add is absolutely nothing.
After decades of producing audio, we’ve learned that the hard part isn’t finding another sound. It’s knowing what each moment needs.
Podcast Sound Effects, Sound Design and Music Aren’t the Same Thing
These terms tend to get tossed around interchangeably, but when we’re producing a show, they serve different purposes.
Sound Effects for Podcasts
Sound effects (SFX) are usually recognizable sounds from the real world: footsteps, traffic, dogs barking, machinery, a baseball hitting a bat, a door closing or gravel crunching under a shoe.
They help establish what is happening and where.
Podcast Sound Design
Sound design goes further. It can involve manipulating, combining, layering or creating sounds to produce a particular effect. Some are generated through synthesizers, plugins and other tools. Others may start with recordings from the real world and become something else entirely by the time we’re done with them.
A sweep into a transition. A strange mechanical texture beneath a reveal. A subtle low-frequency sound that makes a scene feel uneasy.
Those sounds aren’t necessarily there to represent something literal. They’re there to make you feel something.
Podcast Music
Then there’s podcast music.
Tempo. Instrumentation. Texture. Melody. Dissonance. Space.
Music can establish the identity of an entire show or change the emotional temperature of a scene in seconds.
And there’s one more tool we use constantly, although nobody is downloading it from a sound effects library.
Silence. We’ll get to that.
SFX Can Put the Listener Somewhere Without Saying a Word
Say a narrator is talking about a woman known for being an avid jogger.
We could simply tell you she ran every morning. Or, far behind the narration, we could introduce the subtle sound of running shoes hitting a gravel road.
Now your brain has a picture.
But even something as simple as footsteps involves choices.
How heavy should they sound? How quickly is she running? What surface is underneath her? How close should the footsteps feel? Would this particular person have a brisk stride or a slower one?
And perhaps most importantly: how loud should they be? Usually, not very. The listener doesn’t need to think, Oh, I hear running sound effects. They should simply find themselves on that road.
That’s world-building.
Well-placed podcast sound effects can bring physical details into a story without making the narrator explain every one of them. Traffic can establish a city. Crickets can move us outside at night. A distant crowd can put us inside a stadium before anybody says where we are.
The effect serves the story. The story should never feel like it was written just to give us somewhere to put an effect.
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Good Sound Design Can Start With Some Pretty Weird Stuff
My co-founder and sound designer, Joe Edwards, records sounds constantly — and not necessarily the ones you’d expect.
Real-world sounds are great. Generated sounds from synths, plugins and samples are great too. But some of the most interesting sound design happens when those worlds collide.
Joe will record something, then notice the supposedly useless parts — moving the recorder, shifting his hands, scraping something unintentionally or creating some strange little noise between the sounds he was actually trying to capture.
That’s often where the good stuff is hiding. Perfect on their own sometimes. But reverse it, stretch it, pitch it, layer it underneath something synthetic. Now you may have a sound that feels vaguely familiar to the listener but isn’t quite right.
Joe describes it as the “audio uncanny valley” feeling: familiar, but off.
That can be incredibly effective, especially when you’re producing true crime, fiction, suspense or any story where you want the listener to feel that something isn’t right before you tell them something isn’t right.
That’s sound design doing emotional work.
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Music Can Tell You How to Feel Before the Story Does
Music does far more than fill space behind a voice. Its mood, tempo, instruments, grit, grace and movement can establish a place, a time or a feeling before the story gets there.
Imagine this:
Dark woods.
Middle of the night.
Someone was murdered here.
Under the narration, a low ambient rumble begins.
Then a light piano note. Lots of space around it. Heavy echo.
A low bass hit.
Then a cello starts to rise.
Slowly.
Nothing has jumped out. Nobody has screamed. There hasn’t been some enormous cinematic crash, but you already know this place isn’t safe. That’s what good scoring can do.
Joe has another trick he likes for pivotal or distressing moments: very subtly pitch a music bed downward while it plays.
And subtle is the important word.
The listener shouldn’t consciously notice the pitch changing. They should feel it.
Want to mess with them a little more? Do it before the disturbing moment happens. Now you’ve unsettled the listener before they even know there’s something to be unsettled about.
That’s the difference between simply putting music under narration and actually producing the experience.
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Sometimes the Best Podcast Sound Effect Is Silence
This is one of the biggest lessons inexperienced producers miss. They want to fill everything.
Every transition gets a whoosh. Every pause gets tightened. Every empty spot gets music. Every important statement gets a hit.
But silence is one of the greatest sound design tools we have.
The late voiceover artist Nick Michaels used to say: “In an over-communicated world, a whisper becomes a scream.”
My co-founder here at Redrum, Paul Bahr, has carried that idea with him for years.
The same thing happens with silence. When listeners have been hearing voices, music and sound, then suddenly get nothing, their attention changes.
Joe describes it as an internal, noiseless jump scare. Leave the void just a little longer than feels comfortable. The listener’s brain starts filling it.
What happened? Is something coming? Why did everything stop?
Then introduce the slightest sound.
Depending on what you’re producing, that sound can create subconscious relief. Or absolute dread.
Paul puts it another way: take the silence just to the point where the listener becomes uncomfortable. It grabs them by the shirt and says: Pay attention.
You don’t always need another sound. Sometimes you need to get everything else out of its way.
The Hard Part Isn’t Finding a Sound. It’s Knowing Where It Belongs.
There are endless libraries of podcast sound effects, music tracks, plugins and production tools available now. Access isn’t the problem. Judgment is.
Sound design can lightly accent a transition between ideas. It can signal that the speaker just said something worth remembering. It can smooth an odd pacing issue or bridge two pieces of music that don’t naturally meet.
It can establish an environment, create tension, give a scene room to breathe or quietly prepare a listener for what’s about to happen.
The real skill is knowing what kind of sound belongs in that particular moment — and how to use it.
When we’re producing an episode, we’re constantly listening for what the story needs. Maybe that’s a real-world sound tucked subtly beneath the narration. Maybe it’s a designed effect, a shift in the music or an effect moved half a second earlier to change how the moment lands.
And sometimes, the most effective choice is a stretch of silence before the sound comes back in.
That’s production.
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How Podcast Sound Effects Go Very, Very Wrong
You can have a giant sound library and still make a podcast sound terrible. Here are a few of the easiest ways:
Using Too Many Podcast Sound Effects
Not every thought needs audio punctuation. If there’s a stinger, swoosh, hit or effect every few seconds, none of them mean anything anymore. Worse, they become exhausting.
Making Them Too Loud
Your sound effect should rarely walk into the room and punch the listener in the face. Unless punching the listener in the face is precisely the effect we’re going for.
Most of the time, SFX used for world-building should sit lightly behind the narration. If the audience stops following the story because they’re suddenly paying attention to the effect, it may be too loud.
Getting Too Literal
Someone says “dog.”
WOOF.
Someone says “telephone.”
RING! RING!
Someone mentions driving.
HONK!
Congratulations. Your podcast now sounds like a soundboard.
Real sound design asks what the moment actually needs instead of illustrating every noun.
Using the Wrong Sound Emotionally
A sound can technically fit the scene and still feel completely wrong. Maybe it’s too playful. Too aggressive. Too cinematic. Too polished. Too creepy. Too cliché.
The right sound isn’t simply the one that matches what’s happening. It has to match what the listener should be feeling.
Getting the Timing Wrong
Sound is incredibly sensitive to timing. Move a podcast sound effect slightly earlier and it can build anticipation. Move it later and it can punctuate what just happened. Put it directly on top of the moment and you may flatten the whole thing.
Tiny choices matter.
Where Does Podcast Music Come From?
Not every podcast uses music the same way, and not every track comes from the same place.
Sometimes we license music from professional music libraries. That gives us access to a huge range of styles, moods and instrumentation, with licensing that allows the music to be used in the podcast. The tradeoff? That music isn’t exclusive. The same track could potentially turn up somewhere else.
For shows that want something uniquely their own, we can create custom music specifically for the podcast. Joe and his crew create original music using musicians, licensed samples and sample kits, while Paul and I are also creating music with AI tools under subscriptions that provide usage rights for the resulting tracks.
That opens up another possibility: podcast music created specifically for the identity of one show rather than selected from a catalog. Depending on how the music is produced and the rights involved, that can mean a podcast has music that isn’t being licensed out to other shows.
Think intro and outro music, recurring themes, music for specific segments or original scoring built around the tone of the podcast itself.
However the music is sourced, one thing matters before it ever makes it into an episode: you need the right to use it.
Finding a track online doesn’t automatically make it podcast-safe. Music libraries, samples, AI platforms and commissioned original music can all come with different licensing or usage terms. Those details need to be understood before the track becomes part of the show.
For podcasters, that’s another advantage of having music handled as part of professional production: you’re not just trying to find something that sounds good. You’re making sure the music you build your show around is actually yours to use.
Great Podcast Sound Design Is in the Details
Anyone can download a whoosh, drop footsteps beneath a voice or put ominous music under a scary story. The craft is in what happens next.
- Which footsteps actually fit the person and the scene?
- How far away should they feel?
- What kind of surface are they running on?
- Does the music enter here — or five seconds earlier to start building tension?
- Should an effect sit quietly in the background or command attention?
- Could layering a real-world recording with a generated sound create something more interesting?
- Would shifting the pitch change how the listener experiences the moment?
- Is this the place where silence creates anticipation before the sound returns?
Those decisions are what turn individual audio elements into a story the listener can step inside.
At Redrum Creative, our podcast production services can include original or licensed music, custom sound design and podcast sound effects alongside the podcast editing, mixing and production that bring the entire episode together.
Because great sound design isn’t just about adding effects. It’s about building an experience with sound.
Explore Redrum Creative’s podcast production services >>
