Getting Started

What do I need to sign up?

Onecast uses Twitter for authentication, so you'll need a Twitter account to log in. You can signup or log in from the homepage.

What browser do I need to use in order to record with Onecast?

Onecast requires a recent version of Google's Chrome browser. Chrome is available as a free download from Google.

What hardware do I need to record?

To use Onecast, you'll need a laptop or desktop computer, a pair of headphones, and, ideally, a microphone. Recording using a mobile device or tablet is not supported at this time.

Do I really need headphones to use Onecast?

Yes, not using headphones causes far too much echo. We recommend over-the-ear headphones because they tend to be the best at preventing sound from escaping the ear cups and reentering the microphone, but simple earbuds will work okay.

Setting Up Calls

How do I set up a new call?

From the dashboard, select 'New Recording.' Enter a title, and then save the new recording. Select the down arrow next to 'Join' for the newly created call and select 'Copy Link.' The link is now copied to the clipboard.

How do I invite other people to join the call?

Participants can join a call by following the call link.

How many people can join a call recording?

The default limit for new accounts is 10 total call participants. You may request an increase in this number by sending an email to Onecast support with your use case.

I'm having trouble joining or connecting to a call.

First, please restart your browser and ensure that it is updated to the latest version. Then, try joining the call again.

In rare cases, Onecast may fail to negotiate a connection on some corporate networks or on some corporate computers with more advanced security software. In this case, you may want to ask your network administrator if WebRTC traffic is permitted. WebRTC is the protocol over which we send audio and signaling data, and it's required for Onecast to work as designed. You may want to try a different device, or move the device onto a different network, such as a 4G mobile hotspot or public wifi point.

If you continue to experience connection problems, please reach out to us via email and we'd be happy to assist you.

I hear a lot of echo during the call.

First, ensure that all call participants are wearing headphones.

Echo is caused by audio signal leakage from a speaker (your headphones) back into the microphone. If you hear echo on a call, first try to identify whose hardware is causing the problem. We often do this by muting some call participants until we find the problem. Once the hardware causing the echo is found, the issue can be fixed by that call participant lowering their system volume.

Earbuds (like those that come with Apple's iPhone) are prone to echo problems. Turning the volume lower should fix the problem temporarily, but we recommend an investment in better equipment if the problem persists.

Can I rejoin a call, or join a call late that has already started?

Yes. When joining a call that has already started, Onecast will simply offset your final audio files by the correct amount of time during processing.

Can I restart a call that has ended?

No. Once Onecast marks the call as completed, it is not possible to rejoin the call. Please create a new recording.

What happens if my internet connection stops working during the call?

If your connection drops during the call, Onecast will attempt to reconnect for you. If your connection drops for long enough or Onecast does not reconnect, you can simply refresh the page and rejoin the call.

If you are recording and all participants on the call have their connections drop, Onecast will automatically end the call and begin processing your audio without your needing to manually end the call.

I can only connect for a short period of time, or I believe that my connection is slow.

If you can only connect to the call for a short period of time, your connection is likely slow. You can test your connection with freely available speed test tools; we recommend, which is run by Netflix. If your connection speed is okay and you experience problems, please reach out to Onecast support so we can look into the issue.

Do I need to wait for my audio to upload when the call is complete?

Not unless you see an alert to do so. Onecast is only a few seconds delayed in saving your audio, so the process is normally completed immediately upon ending the call. If the connection has been slow and Onecast is behind on the audio uploads, you may see an alert to not leave the page until the upload finishes.

Is it possible to hear yourself during the call?

Yes. From the calling screen, select the audio settings menu from the top right, and click on 'Enable Loopback'.


How long after my recording will my files be available to download?

Processing takes anywhere from ten seconds to a few minutes depending on the length of the recording and how many participants were on the call. For very long recordings (well over an hour) with many participants, processing times can be longer. Processing times may also be slower during peak usage times.

If you believe your recordings should already be available, please reach out to Onecast support and we will be happy to look into the issue.

How many recordings can I make?

Onecast gives you 10GB of storage to use, and we count all tracks made on your recordings against that cap. Only MP3 files count against the cap, as these files are saved permanently. WAV files are available for a limited amount of time following the end of the call, and do not affect the total amount of storage available to you.

Can I download uncompressed WAV files for my recordings?

Yes. WAV files are available via the down arrow next to the 'Download' button on the dashboard. Note that WAV files are only available for two weeks following the call.