Want to share a long voice recording, podcast, or audio message with friends on WhatsApp or Telegram? These apps have file size limits that can block your uploads. Here's how to split audio for WhatsApp and other messaging apps quickly and easily.
Messaging App Audio Limits
Each messaging app has different limits for audio files:
| App | Max File Size | Recommended Chunk |
|---|---|---|
| 16 MB (64 MB for some regions) | 3-5 minutes | |
| Telegram | 2 GB | Any size (but consider data usage) |
| Facebook Messenger | 25 MB | 5-10 minutes |
| iMessage | 100 MB | 15-20 minutes |
| Discord | 8 MB (free) / 50 MB (Nitro) | 2-3 minutes (free) |
| Slack | 1 GB | Any reasonable size |
WhatsApp Audio Limits Explained
- Standard limit: 16 MB per file
- Voice messages: Up to 15 minutes in-app recording
- At 128kbps MP3: ~16 MB = ~16 minutes of audio
- Recommendation: Split into 3-5 minute chunks for reliability
Telegram
- File limit: 2 GB (very generous!)
- Voice messages: No practical limit
- Why still split? Easier navigation, lower data usage for recipients
- Recommendation: 10-15 minute chunks for long content
How to Split Audio for WhatsApp
Follow these steps to prepare your long recording for WhatsApp sharing:
1 Open ChunkAudio
Go to chunkaudio.com on your phone or computer. No app download needed.
2 Upload Your Recording
Tap "Select Audio File" and choose your voice recording, podcast, or audio file.
3 Set Chunk Duration
For WhatsApp, enter 5:00 (5 minutes) to stay safely under the 16MB limit. This gives you a buffer for higher-quality recordings.
4 Split and Download
Tap "Split Audio" and download the ZIP file containing all your chunks.
5 Share on WhatsApp
Open WhatsApp, select a chat, tap the attachment icon, and send each chunk as a separate audio file.
Pro Tip: Number your files (Part 1, Part 2, etc.) so your recipient knows the listening order. ChunkAudio automatically numbers chunks for you!
Calculating the Right Chunk Size
File size depends on audio quality (bitrate). Here's a quick reference:
| Audio Quality | Size per Minute | Max Duration for 16MB |
|---|---|---|
| Voice (64 kbps) | ~0.5 MB | ~32 minutes |
| Standard (128 kbps) | ~1 MB | ~16 minutes |
| High Quality (256 kbps) | ~2 MB | ~8 minutes |
| CD Quality (320 kbps) | ~2.4 MB | ~6.5 minutes |
For voice recordings (lectures, conversations, podcasts), 5-minute chunks at standard quality work perfectly for WhatsApp.
Tips for Sharing Long Audio
For Voice Notes and Lectures
- Use 5-minute chunks for WhatsApp
- Enable silence detection to avoid cutting mid-sentence
- Consider compressing to 64kbps for even smaller files
For Music and Podcasts
- Use 10-15 minute chunks for Telegram
- Keep original quality (128-320 kbps) for music
- Label chunks clearly (Part 1 of 4, etc.)
For Group Sharing
- Warn the group that multiple parts are coming
- Send parts in quick succession so they stay together
- Consider creating a broadcast list for one-way sharing
Common Questions
Why not just use a cloud link?
You can share via Google Drive or Dropbox, but recipients prefer direct audio they can play in-app without leaving WhatsApp. Split files provide a better experience.
Will splitting reduce quality?
No! ChunkAudio preserves your original audio quality. Learn more about lossless splitting.
Can I do this on my phone?
Yes! ChunkAudio works in any mobile browser - no app needed. Just open chunkaudio.com on Safari or Chrome.
Platform-Specific Audio Limits (2026)
Each messaging platform has different restrictions for audio files. Here's what you need to know:
WhatsApp Audio Limits
WhatsApp allows audio files up to 16 MB per message. For a standard 128 kbps MP3, that translates to roughly 16 minutes of audio. Voice messages recorded within WhatsApp have no practical time limit, but forwarding pre-recorded files is capped at 16 MB. For longer recordings like lectures or meetings, splitting into 10-12 minute chunks ensures reliable delivery.
Telegram Audio Limits
Telegram is more generous, allowing files up to 2 GB. However, many recipients prefer shorter audio messages for convenient listening. For voice messages, Telegram supports unlimited duration but displays a progress bar — listeners appreciate segments under 10 minutes for easy navigation.
Signal, Discord, and Others
Signal supports attachments up to 100 MB. Discord limits free users to 25 MB (50 MB with Nitro). iMessage handles files up to 100 MB but compresses audio above certain thresholds. For cross-platform compatibility, keeping chunks under 15 MB is the safest approach.
Best Practices for Sharing Audio on Messaging Apps
Name Your Files Clearly
After splitting, rename your chunks descriptively. Instead of "audio_part1.mp3", use names like "Meeting-Notes-Jan15-Part1.mp3". This helps recipients know what they're downloading and makes it easier to listen in order.
Consider Compression vs. Quality
If your audio is a voice recording (meeting, lecture, voice note), you can safely use 64-96 kbps mono encoding without noticeable quality loss. This cuts file sizes in half compared to 128 kbps stereo, letting you fit more audio per chunk. For music, stick with 128-192 kbps to preserve quality.
Use ZIP for Multiple Chunks
When sending many chunks (5+), consider downloading ChunkAudio's ZIP output and sending the single ZIP file instead of individual audio files. Most messaging apps handle ZIP attachments well, and it keeps the conversation cleaner.
Timing Your Sends
When sharing split audio over messaging apps, send chunks sequentially with a brief pause between each. This ensures they appear in the correct order in the chat. Adding a quick text label like "Part 1/4" before each audio file helps recipients follow along.
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