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Web radio audio processing

Web radio audio processing.
Keep levels steady.

Web radio listeners are on headphones, laptops and phone speakers, often with the volume already set. OptiLive sits between your mixer or playout and your stream encoder, and keeps tracks and voice at a level they will not have to fix themselves.

Windows 10/11 · macOS 10.15+ · Basic €30/year · Pro €120/year · 12-month licences with periodic updates

OptiLive Pro interface used for web radio audio processing
Mixer / playoutOptiLiveStream encoder
Stage 01 · AGC
Two-speed AGC
Stage 02 · 5B
Five-band compression
Stage 03 · CLP
Clipper with distortion control
Stage 04 · TPL
True-peak limiter

A presenter speaks softly, the next track is a brick-wall master, the one after is from 1974. On headphones, every jump is right in the listener’s ear. OptiLive smooths it out before the stream is encoded.

01Between tracks and voice

The levels your playout never agreed on.

Most web stations run from a playout library assembled over years, plus live voice from a microphone that is set once and forgotten. The two-speed AGC handles both cases: the slow speed evens out differences between tracks, the fast speed catches a voice that suddenly gets loud, without pumping the music in between.

Five-band compression then keeps the tonal balance steady, so a thin old record and a bass-heavy new release sit together on the same stream.

  • Track-to-track levelling with two-speed AGC
  • Voice and music held at a similar perceived level
  • Five bands for an even colour across the playlist
02Before encoding

Process first. Encode second.

The encoder is where your stream is compressed for delivery, so it should receive a signal that is already finished. Put OptiLive before the encoder in your signal path and let it level, shape and peak-limit the audio, then let your existing encoder do its job unchanged.

The true-peak limiter at the end of the chain keeps intersample peaks under your ceiling. Leaving a little room below full scale gives the encoder a cleaner input than a signal that is hitting 0 dBFS.

  • Runs live on Windows and Mac, before your encoder
  • True-peak limiter with a ceiling you set
  • Clipper with distortion control for density without harshness
03Judge the output

Listen to what listeners actually hear.

The result listeners hear depends on the encoder, codec and bitrate you use after processing. Evaluate the encoded stream itself: open your public stream on a phone, in a browser and on headphones, and listen there. Check audio routing with your own setup rather than assuming a built-in integration.

If heavy processing sounds fine on the studio monitors but gritty on the stream, back off the drive or pick a softer factory sound. Lower-bitrate streams often prefer a little less density.

04Bench checklist

How to evaluate it on your stream.

  1. 01Install the free trial (Basic or Pro) on the computer that feeds your stream encoder.
  2. 02Route mixer or playout into OptiLive, and OptiLive into the encoder input you already use.
  3. 03Start with the Radio factory sound and a moderate drive; leave a little headroom below full scale.
  4. 04Play a real mix: a voice link, an old track, a loud modern master, a jingle, back to back.
  5. 05Listen to the public encoded stream on phone, laptop and headphones, not only to the local output.
  6. 06In Pro, refine the five bands and crossovers to suit your format, then save your own tuning.

Evaluate OptiLive before your encoder in your own audio chain. No particular encoder, codec or streaming service compatibility is claimed here; the encoded result depends on your routing and encoder settings.

EDSBasic & Pro

Same engine. Pick how deep you go.

BasicFree trial
€30€90/ year · until 31 Dec 2026

Three factory sounds (Soft, Radio, Loud) and the core controls. Pick a sound, set the drive, go on air.

ProFree trial
€120€180/ year · until 31 Dec 2026

Everything in Basic, plus individual controls for all five bands, draggable crossovers and your own saved tunings.

The new downloads are awaiting publication. Direct download links will become active once the files are added to the latest release. No GitHub account is needed.

Mac .pkg or Windows Setup .exe: choose Desktop, Plugin, or both inside the installer. Basic and Pro are Desktop editions. Player is a separate free download. Full edition comparison.

Try it on your own feed.