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Upload your audio file
Upload an MP3, WAV, M4A or OGG file up to 100 MB. Add a title, your logo and a line of intro text for the player page, or turn the page off so the scan goes straight to the audio file.
QR Cake generator
Audio QR Code Generator
Make an audio QR code from an MP3, WAV, M4A or OGG file. A phone scan opens a page where one tap plays your museum narration, tasting note, track preview or pronunciation drill. For a music QR code, upload your own song, or use a Website QR code for an album or playlist already on Spotify or Apple Music.
Loading the QR code maker
How it works
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Design and save the code
Pick colors or a gradient, dot and corner styles, a logo in the middle and a frame with a call to action such as "Scan to listen". Save the code to your free account to make it live, then download it as PNG or SVG for print.
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Place it and update freely
Print the code on packaging, hang tags, museum labels or flashcards. If you re-record the audio later, upload the new file to the same code from your dashboard, and the printed code plays the new version.
Common use cases
01
Museum stop narration: a 90-second curator commentary plays when visitors scan a label beside a painting.
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Vinyl record packaging: a sticker on the shrink-wrap plays a 60-second sampler of the album, so shoppers hear it before they buy.
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Hotel room guide: guests scan a code on the bedside card to hear a narrated walkthrough of in-room amenities and local recommendations.
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Language flashcard pronunciation: a native-speaker recording plays when students scan the back of a printed vocabulary card.
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Accessible signage: a QR code beside a printed notice plays the same information as audio for visitors with low vision or reading difficulties.
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Wine tasting note: a winemaker's voice describes the vintage, region, and food pairings directly from the bottle's back label.
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Podcast merch preview: a QR code on a branded tote bag plays a 60-second highlight reel from the latest episode.
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Audiobook packaging: a short sample chapter plays from a QR code on the book's back cover, helping shoppers decide before buying.
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Band merch and demo cards: a code on a sticker or flyer plays your demo track, and you can swap in the finished master when it is ready.
Industries that use it
MUSEUMS & GALLERIES
Audio stops replace bulky handheld audio-guide devices. A 2 cm code on a label plays a curator's 90-second commentary. Swap the narration for a translated version without touching the label.
MUSIC & VINYL
Labels, sleeves, and merch carry QR codes that stream 30-second track previews. A record shop customer hears the sound before committing to a purchase, with no Spotify account required.
HOTELS & SERVICED APARTMENTS
Hotels and serviced apartments put codes on printed room cards. Guests hear a narrated guide to the room: how to work the espresso machine, where the pool is, and the staff's favorite local restaurants. Print one code per language for international guests.
EDUCATION
Language teachers print QR codes on flashcards and worksheets. Students scan to hear a native-speaker pronunciation model or a short lecture segment, reinforcing what they read with what they hear.
ACCESSIBILITY
Printed menus, building directories and exhibition panels carry a QR code that plays a recorded reading of the content. Visitors who find small print difficult get the same information as audio without relying on staff.
WINE & SPIRITS
A neck tag or back label carries a code that plays the winemaker or distiller talking about the vintage, region and food pairings. It is more personal than printed tasting notes, and you can record a new note for each release.
What it is
The printed pattern holds a short QR Cake link, not the sound itself. Scanning it opens a lightweight page that loads your file: a 90-second museum stop, a 30-second preview on a record sleeve, or a three-minute tasting note recorded by the winemaker. The listener taps play and the browser streams the audio, so the phone needs an internet connection but no extra app.
Because the code points at a link QR Cake manages, you can upload a new recording to a saved code at any time: a translated narration, a re-recorded script, or next season's tasting note. The label on the gallery wall stays exactly as printed. A static QR code bakes its address into the pattern, so changing the audio behind it would mean printing new codes everywhere.
Audio QR codes make sense when the information is better heard than read: a native speaker pronouncing the word on a language flashcard, a sommelier's tasting note on a bottle's neck tag, or exhibit commentary too long for a printed caption. They also help with accessibility, since a code beside a printed sign can offer the same content as audio for visitors who find reading difficult.
Best practices
- Caption the code, for example "Scan to hear the guide (2 min)", or add a frame with a short call to action such as "Scan to listen". Visitors in a noisy gallery or busy shop need to know what will happen before they point their phone.
- Front-load the most important content. Listeners decide in the first few seconds whether to keep going, so put the exhibit name, key fact or track title at the very start.
- Encode speech as MP3 at 128 kbps, which is about 1 MB per minute, so a 3-minute narration is roughly 3 MB. On packaging and in shops, where people listen standing up, aim for under 60 seconds.
- Test playback on an iPhone (Safari) and an Android phone (Chrome) before you print. MP3 and M4A are the safest formats; WAV plays too, but at about 10 MB per minute it loads slowly on mobile data.
- Offer a transcript for people who cannot listen. The audio page shows a title and a short intro, so print the key points beside the code or publish the full text on your website and mention it in the intro.
- Plan for updates. When a vintage changes or you spot a mistake in the narration, upload a new file to the same code from your dashboard, and the 500 bottle labels already printed play the new version.
Limitations to know before you print
- Audio requires an internet connection to stream. A visitor with no signal in a basement gallery or underground venue will see an error rather than hear the guide.
- Noisy places such as trade-show floors, outdoor markets and loud restaurants make audio hard to hear through a phone speaker, and not every visitor has earphones with them.
- Phone browsers block autoplay with sound, so the visitor has to tap play. Word the caption to match, for example "Scan, then tap play", so nobody waits for audio that has not started.
- Uploads are capped at 100 MB, and high-bitrate files such as WAV (about 10 MB per minute) can stall on a weak mobile connection. For long recordings, export an MP3 at 128 kbps, which is about 1 MB per minute and streams far more easily.
- Audio cannot be skimmed or searched like text. A visitor looking for one detail, such as step 3 of a set of instructions, has to scrub through the recording, so split long content across several codes or pair it with printed text.
How it compares
| Audio QR | Video QR | Link List QR | |
|---|---|---|---|
| File type delivered | Audio (MP3, WAV, M4A, OGG) | Video (MP4, MOV) | Several links on one page |
| Works without screen focus | Yes, listen while looking at the exhibit | No, needs eyes on the screen | No, needs a tap on a link |
| Bandwidth demand | Low (1-2 MB typical) | High (20-100 MB+ typical) | Minimal (a light web page) |
| Ideal for | Narration, pronunciation, tasting notes, previews | Demonstrations, performance clips, brand films | Multi-destination: menu, booking, social, site |
| Update without reprint | Yes (dynamic, via QR Cake) | Yes (dynamic, via QR Cake) | Yes (dynamic, via QR Cake) |
| Accessibility aid | Yes, audio version of printed text | Partly, needs sight and hearing | Depends on the linked pages |
What it is
An audio QR code is a QR code that opens a sound file, such as an MP3, in the phone's browser when scanned. On QR Cake you upload an MP3, WAV, M4A or OGG file up to 100 MB, and the scan opens a mobile page showing your title, logo, a short intro and an audio player. No app is needed. You can also turn the page off so the scan goes straight to the audio file, which plays in the browser's built-in player.
Start with the generator
The QR type is already selected. Add your content, style the code, then save it to a free account to get a dynamic QR code you can update anytime.
Make an audio QR codeFrequently asked questions
Which audio formats can I turn into a QR code?+
QR Cake accepts MP3, WAV, M4A and OGG files, up to 100 MB each. QR Cake hosts the file and the phone's browser plays it, so MP3 at 128 kbps is the safest choice: every phone browser supports it. Other files, such as FLAC, AIFF or a bare .aac file, cannot be uploaded, so export them to MP3 first (AAC audio saved as .m4a is fine).
Does the audio play automatically when someone scans the code?+
No. On QR Cake, the scan opens a page with an audio player and the visitor taps play. Phone browsers on iPhone and Android block sound that starts on its own, so word your caption to match, for example "Scan to listen to the guide", rather than implying the audio starts by itself.
How do I make my audio QR code accessible?+
Pair the recording with text. QR Cake's audio page shows a title and a short intro above the player, so use them to say what the recording covers, and print a transcript nearby or publish it on your website for people who cannot listen. In noisy spots, add "earphones recommended" to the caption, and record without background music, which competes with speech.
Is the audio QR code generator free?+
Yes. QR Cake's free plan lets you create up to 5 dynamic QR codes, audio codes included, with unlimited scans and no credit card, and the codes never expire. On the free plan, each scan shows a short QR Cake page with a brief ad and a few-second countdown before the player opens. Paid plans start at $2.99 a month and remove that page, and Basic and higher plans also raise the code limit.
Does scanning use mobile data?+
Yes, a little. The page and the audio load over the visitor's mobile data or Wi-Fi when they scan and press play. A 90-second narration saved as MP3 at 128 kbps is about 1.4 MB, which few people notice on 4G or 5G. If coverage in your venue is poor, offer guest Wi-Fi and print the network name on the label.
Can I change the audio file after printing the QR code?+
Yes. Every audio QR code on QR Cake is saved to your account, so you can open it in the dashboard, upload a new recording and save. The printed code stays the same, and every scan after that plays the new file. Use it for a seasonal tasting note, a translated narration or a corrected take.
What is the maximum file size for an audio QR code?+
QR Cake accepts audio files up to 100 MB. For smooth playback on mobile data, aim far lower: most packaging previews, museum stops and tasting notes fit in under 5 MB, which is about 5 minutes of MP3 at 128 kbps. For longer content, split it across several codes or point a Website QR code at your podcast page.
How do I turn an MP3 into a QR code?+
Upload the MP3 to QR Cake's audio QR code generator, save the code to a free account, and download it as PNG or SVG. Before saving, you can add a title, logo and intro for the player page and style the code with colors, a logo in the middle and a frame. Scanning works from the iPhone Camera app (iOS 11 and later) and from the camera or Google Lens on most Android phones, and the audio plays in the browser with no app to install.
How do I make a music QR code for a song or playlist?+
Upload the song as an MP3 if you own it, or make a Website QR code that points at the Spotify, Apple Music or YouTube Music link for an album or playlist. The upload route plays the track in the browser and suits original music, demos, band merch and wedding or event songs. The streaming link opens in the app listeners already use and is the safer route for released tracks, because uploading music you do not hold the rights to is a licensing problem, not a technical one.
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