{"id":5418,"date":"2026-07-30T14:28:27","date_gmt":"2026-07-30T09:28:27","guid":{"rendered":"https:\/\/noisereducerai.com\/blogs\/?p=5418"},"modified":"2026-07-30T15:05:53","modified_gmt":"2026-07-30T10:05:53","slug":"best-free-tools-for-cleaning-up-podcast-audio","status":"publish","type":"post","link":"https:\/\/noisereducerai.com\/blogs\/best-free-tools-for-cleaning-up-podcast-audio\/","title":{"rendered":"Best Free Tools for Cleaning Up Podcast Audio"},"content":{"rendered":"<style>.kb-row-layout-id5271_7a3f47-2b > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id5271_7a3f47-2b > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id5271_7a3f47-2b > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:0px;padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:0px;grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id5271_7a3f47-2b > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id5271_7a3f47-2b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id5271_7a3f47-2b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id5271_7a3f47-2b alignnone has-theme-palette7-background-color kt-row-has-bg wp-block-kadence-rowlayout alignfull\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column5271_991985-fc > .kt-inside-inner-col,.kadence-column5271_991985-fc > .kt-inside-inner-col:before{border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-right-radius:10px;border-bottom-left-radius:10px;}.kadence-column5271_991985-fc > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column5271_991985-fc > .kt-inside-inner-col{flex-direction:column;}.kadence-column5271_991985-fc > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column5271_991985-fc > .kt-inside-inner-col{background-color:var(--global-palette8, #F7FAFC);}.kadence-column5271_991985-fc > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column5271_991985-fc{position:relative;}@media all and (max-width: 1024px){.kadence-column5271_991985-fc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column5271_991985-fc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column5271_991985-fc\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c, .wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c[data-kb-block=\"kb-adv-heading5271_265e80-6c\"]{text-align:center;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c[data-kb-block=\"kb-adv-heading5271_265e80-6c\"] mark.kt-highlight{font-style:normal;color:var(--global-palette2, #2B6CB0);-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading5271_265e80-6c[data-kb-block=\"kb-adv-heading5271_265e80-6c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h1 class=\"kt-adv-heading5271_265e80-6c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading5271_265e80-6c\">Best Free Tools for Cleaning Up Podcast Audio<\/h1>\n\n\n<style>.wp-block-kadence-advancedbtn.kb-btns5271_707a04-9e{gap:var(--global-kb-gap-xs, 0.5rem );justify-content:center;align-items:center;}.kt-btns5271_707a04-9e .kt-button{font-weight:normal;font-style:normal;}.kt-btns5271_707a04-9e .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns5271_707a04-9e .kt-btn-wrap-0 .kt-button:focus{background:#444444;}<\/style>\n<div class=\"wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns5271_707a04-9e\"><style>ul.menu .wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button{width:initial;}.wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button{color:var(--global-palette2, #2B6CB0);font-weight:bold;border-top-left-radius:7px;border-top-right-radius:7px;border-bottom-right-radius:7px;border-bottom-left-radius:7px;border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}.wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button:focus{color:var(--global-palette9, #ffffff);background:var(--global-palette2, #2B6CB0);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn5271_3f23b9-1e.kb-button{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}}<\/style><a class=\"kb-button kt-button button kb-btn5271_3f23b9-1e kt-btn-size-standard kt-btn-width-type-full kb-btn-global-outline kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"https:\/\/noisereducerai.com\/\"><span class=\"kt-btn-inner-text\">Try our Free Noise Reducer<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column5271_5b5c4a-55 > .kt-inside-inner-col,.kadence-column5271_5b5c4a-55 > .kt-inside-inner-col:before{border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-right-radius:10px;border-bottom-left-radius:10px;}.kadence-column5271_5b5c4a-55 > 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.kb-table-of-contents-list-sub{margin-top:7px;}<\/style><\/div><\/div>\n\n\n<style>.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col,.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column5271_e3aa39-f3{position:relative;}@media all and (max-width: 1024px){.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column5271_e3aa39-f3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column5271_e3aa39-f3\"><div class=\"kt-inside-inner-col\">\n<section class=\"nrai-section\">\n  <p>New podcasters often assume clean audio requires expensive plugins or a treated studio. It helps, but it&#8217;s not required. There&#8217;s a solid lineup of free tools that can take a rough recording, one with room noise, a hum in the background, or inconsistent volume between hosts, and turn it into something that sounds professional enough to publish. This post walks through the free options worth knowing about, what each one is actually good at, and how to combine them into a workflow that doesn&#8217;t cost anything.<\/p>\n\n  <div class=\"nrai-keypoints\">\n    <div><strong>Key Takeaways<\/strong><\/div>\n    <ul>\n      <li>AI-based noise reducers handle background noise and hum better than manual filtering in most free DAWs<\/li>\n      <li>Audacity remains the most flexible free option for full episode editing, just not the best at noise removal alone<\/li>\n      <li>Adobe Podcast Enhance and similar browser tools are built specifically for speech cleanup with minimal setup<\/li>\n      <li>The best results usually come from combining more than one free tool rather than relying on a single app for everything<\/li>\n    <\/ul>\n  <\/div>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>What &#8220;Free&#8221; Actually Means for These Tools<\/h2>\n  <p>Before comparing options, it&#8217;s worth knowing that free podcast tools generally fall into two categories. Some are genuinely free with no catch, usually because they&#8217;re open source or ad-supported. Others are free tiers of a larger paid product, meaning you get real functionality at no cost but with limits on file length, processing minutes, or export quality until you upgrade. Neither approach is inherently worse, but it affects which tool makes sense depending on how often you&#8217;re publishing and how long your episodes typically run.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>AI Noise Reduction Tools<\/h2>\n  <p>For the specific problem of background noise, hum, and echo, AI-based noise reducers are usually the fastest and most effective free option. You upload the raw episode, the model analyzes it in short frames and separates speech from unwanted sound, and you get back a cleaned file, usually within a minute or two for a typical episode length. This is the category our own tool falls into, and we cover the mechanics of how this actually works in our post on <a href=\"https:\/\/noisereducerai.com\/blogs\/noise-reduction\/\">how noise reduction works<\/a>.<\/p>\n  <p>What makes this category worth trying first is that it requires no editing skill and no manual adjustment of filters or thresholds. If your main issue is a fan hum, room echo, or general background noise rather than more advanced editing needs like leveling multiple speakers or adding music, an AI noise reducer alone can often get an episode publish-ready. Our broader roundup of <a href=\"https:\/\/noisereducerai.com\/blogs\/best-free-online-noise-reducers\/\">the best free online noise reducers<\/a> compares several tools in this category side by side if you want more detail than this post covers.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Audacity<\/h2>\n  <p>Audacity is free, open source, and has been a staple in podcast editing for years. Unlike a dedicated noise reducer, it&#8217;s a full digital audio workstation, meaning you can cut, splice, adjust levels, add music beds, and export your final file all in one place. It also includes a built-in noise reduction filter, which works by sampling a short section of pure background noise and then subtracting that noise profile from the rest of the track.<\/p>\n  <p>The tradeoff is that Audacity&#8217;s noise reduction is a more manual, rule-based process compared to AI-driven tools. It works reasonably well on very steady noise, like a consistent hum, but tends to struggle with inconsistent or complex background sound and can introduce a warbly, artificial quality if pushed too aggressively. Our comparison of <a href=\"https:\/\/noisereducerai.com\/blogs\/manual-vs-ai-noise-removal\/\">manual versus AI noise removal<\/a> covers this gap in more depth. For a lot of podcasters, the practical answer is using Audacity for the actual editing and assembly of the episode, while running noise cleanup through a dedicated AI tool first or last in the process.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Adobe Podcast Enhance<\/h2>\n  <p>Adobe offers a free browser-based tool built specifically for cleaning up speech recordings, often referred to as Podcast Enhance. It&#8217;s designed around a single use case: taking a rough voice recording, one made on a phone, laptop mic, or in a noisy room, and making it sound closer to studio quality. You upload a file, it processes automatically with no manual settings to configure, and you download the result.<\/p>\n  <p>Because it&#8217;s purpose-built for speech, it tends to produce a noticeably polished sound on voice-only recordings, though it isn&#8217;t designed for full episode editing, mixing multiple tracks, or handling music beds. It&#8217;s best thought of as a single-purpose cleanup step rather than a full production tool, which makes it a natural pairing with something like Audacity for the rest of the editing work.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Descript<\/h2>\n  <p>Descript takes a different approach by editing audio through a text transcript. You can delete filler words, remove sections, and clean up a recording by literally deleting the corresponding text, which the software then removes from the audio automatically. Its free tier includes real editing functionality along with a set amount of transcription each month before limits kick in.<\/p>\n  <p>Descript also includes noise reduction and audio enhancement features aimed at removing background sound and improving overall clarity, though these tend to work best on shorter files given the free tier&#8217;s processing constraints. It&#8217;s a strong option if you also want an easier way to trim filler words and awkward pauses, not just clean up background noise. Since transcript accuracy matters a lot here, cleaner input audio helps, which ties back to our guide on <a href=\"https:\/\/noisereducerai.com\/blogs\/transcribe-audio-to-text\/\">transcribing audio to text<\/a>.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Krisp<\/h2>\n  <p>Krisp is primarily known as a real-time noise cancellation tool for calls, working as a virtual microphone that filters your audio live during a Zoom call, recorded interview, or livestream. Its free tier applies real-time suppression with some daily limits before hitting a cap. Because it works live rather than as a post-processing step, it&#8217;s most useful if you&#8217;re recording an interview or co-host conversation over a call and want cleaner audio captured from the start, rather than fixing a file after the fact.<\/p>\n  <p>If you&#8217;re weighing Krisp against a dedicated post-processing AI tool, it helps to know they&#8217;re solving slightly different problems, one working in real time during capture and the other cleaning up a file afterward. Our direct comparison of <a href=\"https:\/\/noisereducerai.com\/blogs\/noise-reducer-ai-vs-krisp\/\">Noise Reducer AI versus Krisp<\/a> breaks down where each one fits best.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Putting Together a Free Workflow<\/h2>\n  <p>Most podcasters get the best results from combining tools rather than relying on just one. A practical free workflow looks something like this:<\/p>\n  <ol class=\"nrai-steps\">\n    <li>Record with Krisp active if you&#8217;re capturing a call or remote interview, to reduce noise going in<\/li>\n    <li>Run the raw recording through an AI noise reducer to strip out remaining hum, echo, or background sound<\/li>\n    <li>Import the cleaned file into Audacity to trim, arrange segments, and balance levels between speakers<\/li>\n    <li>Use Descript if you want to cut filler words and awkward pauses using the transcript-based editor<\/li>\n    <li>Export the final mix and, if needed, run it through transcription for show notes or captions<\/li>\n  <\/ol>\n  <p>Not every episode needs all five steps. A solo voice memo with minor background hum might only need step two. A multi-guest interview recorded over a call benefits from most or all of them. If echo from a bare room is part of the problem, our guide on <a href=\"https:\/\/noisereducerai.com\/blogs\/remove-echo-from-audio\/\">removing echo from audio<\/a> covers that specific issue in more depth than a general workflow can.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section\">\n  <h2>Choosing Based on Your Actual Problem<\/h2>\n  <p>If your main issue is background noise, hum, or echo, start with an AI noise reducer since it solves that specific problem with the least effort. If you need to actually assemble an episode from multiple segments or speakers, Audacity is worth learning even though it has a steeper curve than the other tools here. If your workflow depends heavily on cutting filler words and tightening pacing, Descript&#8217;s transcript-based editing saves real time. And if you&#8217;re recording live interviews over a call, Krisp addresses the problem before it ever reaches the recording, which our post on <a href=\"https:\/\/noisereducerai.com\/blogs\/sound-quality-issues-voice-actors\/\">sound quality issues for voice actors<\/a> also touches on from the recording setup side.<\/p>\n<\/section>\n\n<hr class=\"nrai-sep\">\n\n<section class=\"nrai-section nrai-faq\">\n  <h2>Frequently Asked Questions<\/h2>\n\n  <details>\n    <summary>Do I need to pay for anything to clean up a podcast episode?<\/summary>\n    <div class=\"faq-body\">Not necessarily. Free AI noise reducers, Audacity, and free tiers of tools like Descript and Krisp can handle most common issues, including background noise, echo, and basic editing, without a paid plan.<\/div>\n  <\/details>\n\n  <details>\n    <summary>Is Audacity&#8217;s built-in noise reduction as good as AI noise reduction tools?<\/summary>\n    <div class=\"faq-body\">Generally no. Audacity&#8217;s noise reduction works by subtracting a sampled noise profile, which handles steady, predictable noise reasonably well but struggles with inconsistent or complex background sound compared to AI-based models.<\/div>\n  <\/details>\n\n  <details>\n    <summary>Should I use noise reduction before or after editing my episode in Audacity?<\/summary>\n    <div class=\"faq-body\">Many podcasters clean up noise first, then edit the already-clean file in Audacity, since it&#8217;s easier to judge pacing and trim decisions once the background noise is no longer distracting.<\/div>\n  <\/details>\n\n  <details>\n    <summary>Can free tools handle a multi-guest interview recorded over a call?<\/summary>\n    <div class=\"faq-body\">Yes, though it usually takes combining more than one tool, such as using real-time noise suppression during the call and then running the recording through post-processing cleanup and editing afterward.<\/div>\n  <\/details>\n\n  <details>\n    <summary>What&#8217;s the biggest limitation of free tiers compared to paid plans?<\/summary>\n    <div class=\"faq-body\">Most free tiers cap either file length, monthly processing minutes, or export quality. Occasional podcasters usually stay within those limits comfortably, while frequent or long-form shows may eventually need a paid plan for one or more tools.<\/div>\n  <\/details>\n<\/section>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need to pay for anything to clean up a podcast episode?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Not necessarily. Free AI noise reducers, Audacity, and free tiers of tools like Descript and Krisp can handle most common issues, including background noise, echo, and basic editing, without a paid plan.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is Audacity's built-in noise reduction as good as AI noise reduction tools?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Generally no. 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There&#8217;s a solid lineup of free tools that can take a rough recording, one with room noise, a hum in the background, or inconsistent volume between hosts, and&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[142,150,154],"tags":[191,176,190,192,193],"class_list":["post-5418","post","type-post","status-publish","format-standard","hentry","category-ai-blogs","category-audio-enhancement","category-creator-guides","tag-free-audio-tools","tag-noise-reduction","tag-podcast-audio","tag-podcast-editing","tag-podcast-production"],"taxonomy_info":{"category":[{"value":142,"label":"AI Blogs"},{"value":150,"label":"Audio Enhancement"},{"value":154,"label":"Creator Guides"}],"post_tag":[{"value":191,"label":"free audio tools"},{"value":176,"label":"noise reduction"},{"value":190,"label":"podcast audio"},{"value":192,"label":"podcast editing"},{"value":193,"label":"podcast production"}]},"featured_image_src_large":false,"author_info":{"display_name":"Zak Robinson","author_link":"https:\/\/noisereducerai.com\/blogs\/author\/zak-robinson\/"},"comment_info":0,"category_info":[{"term_id":142,"name":"AI Blogs","slug":"ai-blogs","term_group":0,"term_taxonomy_id":142,"taxonomy":"category","description":"<p style=\"text-align: center\">Everything happening at the intersection of AI and audio \u2014 explained in plain English. 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