Downloaded a FLAC album but your car stereo only reads MP3? Exported a voice note as M4A and the upload form rejects anything that is not WAV? The audio format converter on Itqan re-encodes your file between MP3, WAV, AAC, FLAC, OGG, M4A, AIFF, and WMA — with 128, 192, or 320 kbps quality for lossy output, and up to 150 MB per upload. This guide explains codecs versus containers, how to pick the right target format, and four real-world workflows with concrete file sizes — written specifically for Itqan users, not copied from a shared blog template.
What re-encoding actually does
An audio file is not just "sound" — it is a container (MP3, M4A, etc.) holding data compressed by a codec (MPEG Layer III, AAC, and others). Itqan's converter reads the source container, decodes the audio, and writes it into a new container with a new codec. Duration and playback speed stay the same; only the encoding changes.
That is fundamentally different from audio to text (speech transcription), noise reduction (cleaning the recording), and video audio extraction (pulling audio out of a video file). Here the sole goal is format change.
If your source is a video file, run the extractor first, then return to the converter for the final output format.
Choosing a target format — reference table
| Format | Compression | Best for | Rough size: 5 min speech |
|---|---|---|---|
| MP3 | Lossy | Universal sharing — email, messaging, old players | ~5 MB at 128 kbps |
| WAV | Uncompressed | DAW editing in Audacity, Premiere, Reaper | ~50 MB (stereo 44.1 kHz) |
| AAC / M4A | Lossy | Apple ecosystem, YouTube — efficient at low bitrates | ~4 MB at 128 kbps |
| FLAC | Lossless | Archiving music or long recordings without loss | ~25–35 MB |
| OGG | Lossy | Open-source projects, games, Linux tools | ~4 MB at 128 kbps |
| AIFF | Uncompressed | Pro Mac workflows — WAV equivalent | ~50 MB |
| WMA | Lossy | Legacy Windows Media Player rips — convert to MP3 | ~4 MB at 128 kbps |
The Itqan UI shows direct buttons for MP3, WAV, AAC, FLAC, OGG, and M4A; other formats are supported depending on what you upload.
Bitrate and quality — how to set the slider
For lossy formats (MP3, AAC, OGG, M4A), the converter offers 128 kbps (standard), 192 kbps (good), and 320 kbps (high — default). Practical rules:
- Speech and podcasts: 128 kbps is usually enough — a 45-minute file stays under 45 MB.
- Music with clear instruments: 192 kbps balances size and clarity.
- Dense mixes or final masters: 320 kbps, or FLAC when file size is not critical.
- WAV and FLAC: the lossless option preserves everything the source still contains.
Converting a 128 kbps MP3 to WAV does not restore frequencies removed during the original compression — it only inflates file size. Always keep your highest-quality source before any lossy export.
Walkthrough: FLAC album to MP3 for a 2012 car stereo
You ripped a 12-track album to FLAC — 380 MB total, roughly 32 MB per song. The factory USB player in a 2012 sedan reads MP3 and WMA only; FLAC shows "unsupported."
- Open the audio format converter and upload one track (under 150 MB each).
- Select MP3 as the target.
- Choose 192 kbps — each song drops to about 8 MB with listenable quality on car speakers.
- Download, copy to the USB stick, repeat for remaining tracks.
For a full-album workflow, convert tracks in batches. If you later want lyrics or chapter markers as text, convert first, then run audio to text on the MP3.
Walkthrough: 52-minute lecture WAV to AAC for mobile
A university lecture was recorded as stereo WAV: 534 MB — far above the 150 MB upload cap. You already trimmed silence in a local editor down to 48 minutes and 142 MB.
- Upload the trimmed WAV to Itqan.
- Target AAC (or M4A) at 128 kbps.
- Output lands near 46 MB — fits email and plays natively on iPhone.
If the recording has air-conditioner hiss, run noise reduction on the WAV before lossy conversion — cleaning uncompressed audio avoids encoding noise into the final AAC.
Walkthrough: cleaning a 200-song WMA library
An old PC holds 200 WMA files from Windows Media Player circa 2008 — 3–6 MB each. Modern phones and Spotify-local-import expect MP3 or M4A.
- Upload batches of 10–15 files (well under 150 MB combined if done one at a time).
- Convert each to MP3 192 kbps — file size stays similar, compatibility jumps to universal.
- Keep the WMA originals on an external drive until you verify playback on your phone.
Do not chain WMA → MP3 → AAC → MP3; one hop from the best available source is enough.
Walkthrough: MP3 UI sounds to OGG for a Godot project
A hobby game project uses short button-click MP3s (40–120 KB each). Godot's audio bus handles OGG Vorbis more efficiently for looping ambient tracks you exported at 320 kbps MP3 (2.1 MB for 90 seconds).
- Upload the ambient loop MP3.
- Select OGG at 192 kbps.
- Output shrinks to about 1.3 MB with acceptable loop seams in-engine.
For spectrum checks after conversion, open the result in audio analyzer to confirm no unexpected clipping.
Converter vs other Itqan audio tools
| Your need | Tool |
|---|---|
| Change format of an existing audio file | Audio format converter |
| Pull audio from a video file | Video audio extractor |
| Remove hiss or background noise | Noise reduction |
| Transcribe speech to text | Audio to text |
| Trim, split, or merge clips | Audio editor |
| Inspect frequency spectrum | Audio analyzer |
Step-by-step conversion on Itqan
- Open the audio format converter in desktop or mobile browser.
- Upload via drag-and-drop, device picker, Google Drive, or Dropbox.
- Check the stats panel: filename, size, current format.
- Click the target format button: MP3, WAV, AAC, FLAC, OGG, or M4A.
- From the quality dropdown, pick 128, 192, or 320 kbps — or lossless for WAV/FLAC.
- Click Start conversion and wait; large files may take a minute or more.
- Download the result or save to cloud storage.
Pre-conversion checklist
- Is the file under 150 MB? If not, split it in the audio editor or trim at the source.
- Do you need maximum quality later? Archive FLAC or WAV before exporting MP3.
- Sharing or editing? Sharing → MP3/AAC; editing → WAV/FLAC.
- Is the source a video? Extract audio first with the video extractor.
- Noisy recording? Clean it before the final lossy pass.
Common mistakes — and how to avoid them
Converting low-bitrate MP3 to WAV "for quality"
Lost data does not come back. WAV only multiplies file size with no audible benefit.
Re-compressing the same file repeatedly
Each MP3 → AAC → MP3 cycle adds cumulative artifacts. Convert once from the best source you have.
Defaulting to 320 kbps for everything
For spoken-word podcasts, 128 kbps saves space with no perceptible difference on most earbuds.
Ignoring the 150 MB cap
One hour of stereo WAV can exceed 600 MB — split the file or record at a lower sample rate upstream.
Expecting transcription from the converter
Format conversion does not produce text — use audio to text after you unify formats.
What happens to your upload
When you upload audio, it is stored temporarily on Itqan servers solely to run the conversion — we do not use it to train models or sell it to third parties. After processing completes, server copies are deleted automatically within a short window. Connections use HTTPS. For platform-wide practices see our Privacy Policy, Security page, and Cookie Policy. Avoid uploading confidential legal or medical recordings without explicit clearance; use test clips when trying the tool for the first time.
FAQ
Is the converter free?
Yes — no account or subscription. Open the tool and convert.
Which formats are supported?
MP3, WAV, AAC, FLAC, OGG, M4A, AIFF, WMA — convert from and to depending on the file.
Can I convert video directly?
The converter expects audio files. For video, use video audio extractor first.
Does conversion change playback speed or channels?
No — re-encoding keeps the same duration. Speed and channel changes belong in the audio editor.
Does it work on mobile?
Yes — the UI is responsive on Android, iPhone, and tablets.
What is the size limit?
150 MB per file per conversion.
Do I need to install software?
No — everything runs in the browser. No local FFmpeg or plugins required.
Wrap-up
Itqan's audio format converter solves everyday compatibility friction: M4A from iPhones, FLAC for archiving, WAV for editing, MP3 for sharing. Pick the target format by destination, set bitrate deliberately, and keep your original before any lossy step. Upload from device or cloud, convert, download — free and without signup. For longer pipelines: extract from video, denoise, convert format, then transcribe or edit as needed.
Related tools
- Video audio extractor — when the source is video.
- Noise reduction — before the final lossy export.
- Audio to text — after you standardize format.
- Audio editor — trim and merge after conversion.
Pick a format that matches the next step
Convert with the audio converter to WAV before heavy editing in the audio editor, or to compact MP3 before sharing. If the source is video, extract first with the video audio extractor, then convert.
Export delivery copies from one master through the audio converter, and include bitrate plus date in each filename so archives stay unambiguous for the client.