Important Notes
Sonix’s multitrack transcription feature supports up to 5 separate audio tracks per transcription.
This limit cannot currently be increased.
If your file has more than 5 tracks, you will need to trim or combine tracks before uploading.
Step-by-Step Instructions
Check the number of tracks in your recording
Ensure your file has no more than 5 separate tracks before uploading.
If it has more than 5, trim or combine tracks using an audio editing tool.
Upload your recording to Sonix
Log in to your Sonix account.
Go to the Upload section and select multitrack
Select your file and upload it for transcription.
Common Issues and Troubleshooting
What if I have a large conference call with many participants?
We recommend recording participants on fewer tracks by grouping them together. For example, all remote participants on one track and in-room participants on another.
My recording has more than 5 tracks, what should I do?
Use an audio editor (such as Audacity, GarageBand, or Adobe Audition) to merge tracks. Grouping participants logically (remote vs. in-room) helps maintain clarity.
Why does the upload fail after trimming tracks?
Ensure the file format is supported by Sonix (e.g., MP3, M4A, WAV, MP4). Try exporting again with standard settings.
Why did the audio quality drop after combining tracks?
Check your export settings when merging. Use a lossless format (WAV) if possible, or choose high-quality MP3 settings. Avoid compressing the audio multiple times.
Frequently Asked Questions
Can I upload more than 5 tracks for transcription?
No. The multitrack transcription feature currently supports a maximum of 5 tracks. This limit cannot be increased.
Why is there a 5-track limit?
The limit helps maintain transcription quality and system performance. Most common use cases—such as meetings, interviews, and podcasts—fit within this range.
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For further assistance, please contact Sonix support at [email protected] or through the chatbox located in the bottom right corner of our website.