Doug Johnson Productions

Broadcast Monitor ยท Audio

Hear the signal. See its behavior.

From a quiet presenter to a loud music cue, keep useful audio measurements beside the picture.

Six channel meters with channel-level and loudness history from a 5.1 audio sample
Watch six source channels independently and look back at level and loudness changes. Speaker-role labels identify left, right, center, LFE, and the rear channels. This example uses Professional audio-file playback.
Six channel meters beside the selected audio mix frequency spectrum and waterfall
Keep all six source meters visible while analyzing the selected audio mix. Professional spectrum and waterfall views show its frequency content now and how that content changes over time.

Audio monitoring: see what you should also be hearing.

Express and Professional let you route source channels into a stereo listening mix independently of the channels used for phase analysis. Enable Listen to hear that mix through the default Windows playback device. Routing changes take effect without reopening the device, so you can investigate a channel while keeping your monitoring session running.

Loudness readings add momentary, short-term, and integrated measurements to the channel-level displays. They help you compare brief changes with the average loudness over longer periods. Professional also adds spectrum and waterfall analysis, plus audio-only file playback for reviewing music, voiceovers, and cues. When sources report speaker roles, channel labels identify positions such as left, right, center, and LFE; unspecified channels remain numbered.

Level meters

See whether audio is present and how close it gets to the top of the available range. Compare a quiet speaker with a loud musical cue and leave room for unexpected peaks.

Included in Express and Professional.

Stereo phase

Inspect the relationship between the left and right channels. Unusual phase behavior can prompt a mono listening check, where some material may weaken or cancel.

Included in Express and Professional. Always listen as well as watch.

Per-channel audio waveform

See each source channel's changing amplitude across a rolling 20 ms window, independently of your listening mix. Compare channel activity and inspect waveform shape when meters alone do not explain what you hear.

Included in Express and Professional. This is a rolling display without trigger stabilization.

Level and loudness history

Keep up to five minutes of channel levels and momentary, short-term, and integrated loudness in view. The latest 30 seconds have the most space; older history is compressed into the left side of the graph.

Included in Express and Professional. Look back at a quiet introduction or a loud cue to understand a change you just heard. Display suspension leaves gaps in history.

Real-time spectrum analysis

See how audio energy is distributed across frequencies. It can help you investigate a low-frequency rumble or a persistent tonal sound and give you a clearer direction for further listening.

Included in Professional.

Generated stereo test tone with channel meters, phase trace, and correlation scale
Learn the phase display with a known signal. The built-in stereo test tone sweeps its phase relationship, changing the trace and correlation reading. This is generated test audio, separate from the sample scene.

Next: Advanced Monitoring

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