Room Correction Helper

Main commands

Session

Save your work to resume it later: the session file keeps the settings, the measurement state and the filter banks. The measurements themselves live in REW — save them there as a .mdat file and reload it before importing the session.

Calibrated by

Note

Carried inside the session file — useful when someone calibrates for someone else.

Import session

REW Version Loaded Measurements Target Curve Bridge Version AVR unreachable

AVR / Bridge actions

Amplifier Switches the main zone on or off — the amplifier itself.

RCH Bridge Acts on the local bridge program, not on the amplifier.

AVR configuration

Session

AVR model

MultEQ

Speed of sound

Subwoofer mode

Subwoofer layout

Model capabilities

Speaker layout

OUTPUT
FHL FDL TFL	FWL	CH SW	FWR	FHR FDR TFR
SHL SDL TML	FL	C	FR	SHR SDR TMR
BDL RHL TRL	SL SLB	TS	SR SRB	BDR RHR TRR
	SBL	SB	SBR

Connect the bridge and register your AVR to see its configuration.

Smoothing/Windowing:

Room Curve:

Get your measurements into REW

Two ways to get there, and they end the same: your measurements loaded in REW. Let the bridge measure them for you, or import a file you already have.

Audyssey Measurement

The bridge drives the amplifier: it plays the Audyssey sweeps on every speaker and RCH imports each impulse response into REW. Place the microphone at ear height at the listening position before each measurement.

Session state:

Import a measurement file

Already measured with the Audyssey MultEQ Editor app (.ady), MultEQ-X (.mqx) or Dirac Live (.liveproject)? RCH rebuilds every impulse response of the file and loads them into REW. These files carry measurements only: the configuration stays the one of the connected AVR.

Drop .ady, .mqx or .liveproject measurement file here or click to select

Measurement session

Next position:

Position 1 measures the full detected channel plan (detection pass) — channel selection applies from position 2.

Channels to measure

channel

When all positions are measured, complete the session and save your measurements as a .mdat file in REW (File > Save all measurements).

Subwoofer level matching

Adjust the gain knob of the subwoofer until the live SPL reads about 75 dB, then stop.

Live SPL:

Speaker Tools

Filter settings:

Individual max boost:

Overall max boost:

Frequency Range:

Localisation ceiling

Ceiling (Hz):

Averaging between all positions

Delete all original measurements Delete all but position 1 Keep everything

Alignment inside the selected position

Subwoofer Tools

(Optional) Revert AVR low pass filter

Delete original

Generate automated config

will delete actual sub configuration for the current position

Additional gain:

Individual max boost:

Overall max boost:

Frequency Range:

Use all pass filters (slower) Joint optimization: per-sub filters Best-of-orders (slower, judge-gated)

Import your config from MSO

Drop your Equalizer APO export file here or click to select

Subwoofer level check

Sub	Passband	Mean SPL	Deviation (dB)	Report

Sub alignment with speaker

Align "LFE predicted" and all individual subs measurements with selected channel, the speaker must have a filter computed

(Listening) A/B node toggle

Subwoofer alignment stale — run Find Sub Alignment again Retained crossover stale

Position	Channel Name	Measurement	Distance	Delays (ms)	Peaks time (ms)	Absolute distance (m)	Required shift (ms)	Deviation from target (dB)	Trim (dB)	Crossover	Invert	Filter	Preview

Showing of measurements

Finalization

AVR settings

Speaker Preset

LFE Crossover

Subwoofer Output

Audyssey options

MultEQ Mode Dynamic Volume Mode Dynamic EQ Reference Offset (dB) Low Frequency Containment Amount

Audyssey filter banks (Reference / Flat)

One bank is saved: only change the target curve, recompute the filters, then save the other bank (delays/gains/crossovers must stay identical).

Transfer to the AVR

Transfer:

Diagnostic support files

Files for inspection or support — they are not needed for the transfer.

Calibration archive The calibration archive actually sent to the bridge. Useful to attach to a bug report — it cannot be re-imported, and it is not a calibration to share.

Settings file A readable dump of every RCH setting — for a backup, or to attach to a question. It is not re-imported either: to resume your work, use the session file.

Application logs The session log as shown at the bottom of the page, as a text file — the first thing to attach to a bug report.

Application Logs

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