FLAC and LOW BANDWIDTH
The plugin always sends IAMF (Immersive Audio Model and Formats, the open format behind Eclipsa Audio). The LOW BANDWIDTH button chooses the codec inside it. It is off by default, it is saved with your DAW session, and it is fixed while streaming.
Both are sent at 48 kHz. A session at another rate is resampled for the stream only, and the header says so (44.1 kHz HOST, SENT AT 48 kHz); your session’s own audio is untouched.
Lossless FLAC
FLAC is the default because the listener hears exactly the samples the plugin sent, at 24 bit. Its bitrate follows the material: a sparse click track or a single tone is far smaller than a dense mix, and a quiet room recording whose noise floor fills the low bits sits close to the top of its range. Plan your network for music, at about 1 Mbps a channel (see Network).LOW BANDWIDTH (Opus)
LOW BANDWIDTH sends Opus at a fixed 64 kbit/s a channel, which is 0.77 Mbps for the twelve channels of 7.1.4 (twelve channels of FLAC at the music rate above come to about 9.7 Mbps). We provide it for listeners on mobile or congested connections, and for rehearsals and reviews of structure and timing. The header line shows the stream’s total Opus rate (0.77 MBPS at 7.1.4) so you can check it against a listener’s connection before START.Switching between them
STOP, toggle LOW BANDWIDTH, and START again. Each START makes a new link, so send the new one. The listener page reads the codec from the stream itself, so listeners do nothing different for either.Cost
Relay is priced by channels, listeners and time for both codecs. See Pricing.Footnotes
- Measured on music at 24 bit. FLAC is variable rate; tones, silence and sparse material use less. ↩