Room Reference

Room Reference app icon

Direct Sound Records

Room Reference

Know your room.
Improve your listening.

Measure how your loudspeakers and room work together, investigate what is shaping the response and make changes based on evidence rather than guesswork.

Room Reference reveals the system first, then corrects only what the room is clearly imposing.
Room Reference home screen on iPhone

Start measuring

Works with your iPhone’s built-in microphone.

You can begin exploring your listening room without an audio interface or dedicated measurement microphone. Room Reference can use the microphone already in your iPhone to make room analysis accessible and immediate.

For measurements requiring greater accuracy, Room Reference also supports external measurement microphones and microphone calibration data.

Room Reference calibrated microphone support on iPhone

Measure the listening area,
not just one point.

Room Reference guides you through measurements of the left and right loudspeakers at five positions around the listening area, creating a spatially averaged view of the system.

01

Measure

Capture the left and right loudspeakers from five listening-area positions using a guided workflow.

02

Understand

Examine the measured response alongside room geometry and predicted acoustic behaviour.

03

Change and verify

Move speakers, adjust the listening position or review EQ suggestions, then measure again to see what changed.

Room Reference frequency response analysis on iPhone

Interactive Combined, Left and Right frequency-response analysis.

Frequency response

See what the system is doing.

Explore the measured response interactively rather than relying on a single summary number. Inspect Combined, Left and Right responses and read frequency and relative level directly from the graph.

  • Combined spatially averaged response
  • Independent Left and Right speaker views
  • Interactive frequency and relative-level inspection
  • Measurements saved for later comparison
Room Reference room mode analysis on iPhone

Predicted room modes can be explored alongside measured bass behaviour.

Room modes

Connect the measurement
to the room.

Enter the dimensions of your listening room and Room Reference calculates its predicted low-frequency modes. Compare those frequencies with the measured response to investigate whether room geometry may be contributing to particular bass peaks.

A match is a clue, not a diagnosis. A measured peak near a predicted room mode suggests something worth investigating. Change placement and measure again before drawing conclusions.
Room Reference personalised room layout on iPhone

Store room dimensions, loudspeaker placement and listening position.

Your listening room

Give the measurement
physical context.

Save room dimensions together with speaker and listening positions so the frequency-response measurement can be considered in the context of the actual listening space.

  • Store personalised room dimensions
  • Record loudspeaker positions
  • Record the listening position
  • Investigate placement changes through new measurements

Correct carefully.
Verify afterwards.

Room Reference can generate five- or ten-band parametric EQ recommendations including frequency, gain, Q and required preamp attenuation.

The predicted corrected response lets you inspect the intended effect before applying the settings, and the EQ parameters can be shared for use elsewhere.

The corrected curve is a prediction. The final step is always to apply the change and measure the room again.

Measure. Change.
Measure again.

Room Reference is designed around comparison rather than a one-off measurement, so you can see whether a change to the system actually produced the result you expected.

Saved sessions

Keep measurements so they remain useful after the initial setup session.

Before & after

Compare measurements after moving loudspeakers, changing the listening position or applying EQ.

Five positions

Build a spatially averaged picture of the listening area rather than relying on one microphone position.

Room-mode insight

Compare predicted low-frequency modes with measured bass behaviour to guide further investigation.

Flexible microphones

Start with the iPhone microphone or use a calibrated external measurement microphone when greater accuracy is required.

Parametric EQ

Review five- or ten-band EQ suggestions, predicted response and the preamp attenuation required.

Room Reference

Understand first.
Correct second.

The objective is not to force every room into a perfect curve. It is to understand what your system is doing, identify what the room is clearly contributing and make changes that can be checked with another measurement.