While circumstances can vary from network to network the general rule of thumb is as follows:

Have twice the amount of upload bandwidth available as you will need for your stream. Go to speedtest.net to determine your upload speed.

Example: If you want to stream a video at 1.5mb you would want (at the minimum) 3mb of upload and more will only help.

The BoxCaster, BoxCaster Pro, and Broadcaster App can automatically set the bitrate for your broadcast depending on the network's available bandwidth at the start time of your live stream.

The tables below indicate the minimum and maximum bitrates each device will send, as well as the target bitrate BoxCast would like to see, in order to achieve that specific quality level (or resolution and frame rates). Keep in mind, these are the speeds the encoding medium itself will send. So as stated in the example above, multiply by 2 for minimum recommended upload speeds on your network itself (e.g., if you would like to send 720p using a BoxCaster, we would like to be able to send that signal at 3.5 Mbps, and your network would need to have at least 7 Mbps in available bandwidth to safely achieve that).

Minimum Upload Speed Recommendations

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

480p

700 kbps

1.5 Mbps

N/A

720p

1.5 Mbps

3.0 Mbps

N/A

1080p

3.0 Mbps

4.0 Mbps

N/A

BoxCaster (HDSD2):

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

480p

700 kbps

2.5 Mbps

*4.8 Mbps

720p

1.5 Mbps

3.5 Mbps

*4.8 Mbps

1080p

3.0 Mbps

4.0 Mbps

*4.8 Mbps

* The BoxCaster's maximum streaming bitrate.

BoxCaster Pro:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30 (HEVC)

500 kbps

4.0 Mbps

6.0 Mbps

720p60 (HEVC)

800 kbps

6.0 Mbps

9.0 Mbps

1080p30 (HEVC)

1.0 Mbps

8.0 Mpbs

12.0 Mbps

1080p60 (HEVC)

1.5 Mbps

12.0 Mbps

*18.0 Mbps

* The BoxCaster Pro's maximum streaming bitrate.

RTMP:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30

1.0 Mbps

4.0 Mbps

6.0 Mbps

720p60

1.5 Mbps

6.0 Mbps

9.0 Mbps

1080p30

2.0 Mbps

8.0 Mbps

12.0 Mbps

1080p60

3.0 Mbps

12.0 Mbps

18.0 Mbps

Broadcaster App:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30 (HEVC)

1.0 Mbps

4.0 Mbps

6.0 Mbps

720p60 (HEVC)

1.5 Mbps

6.0 Mbps

9.0 Mbps

1080p30 (HEVC)

2.0 Mbps

8.0 Mbps

12.0 Mbps

1080p60 (HEVC)

3.0 Mbps

12.0 Mbps

18.0 Mbps

Again, the target bitrates are simply general recommendations, while the optimal upload speed and bitrate depend on the type of content that you are streaming. Other considerations include the BoxCaster's optimal settings for HD broadcasts, and the HEVC compatibility of iOS devices with the Broadcaster app.

Keep in mind that while your upload speed is the most important factor in streaming video, it is not the ONLY factor. The equipment in your network setup (ethernet cables, switches, routers, modems, etc.) all play an important part in reliably delivering video data.

Check out this video for more information:

Did this answer your question?