Cheshire Café Audio and Control Flow

The audio path and the control logic of the v1_0_3 Tesira design in one place. One TesiraFORTÉ X 400 carries two Dante wireless mics and a laptop's USB audio to the room amplifier and back to the laptop. The same DSP runs the logic behind the TEC-X 2000: two Epson L260F projectors, two screens, four volume controls and automatic mic EQ from the Shure ULXD4D. If you've read the separate audio flow and control flow pages, only Part 1 is new: Parts 2 and 3 carry them over, and Part 4 gathers their reference tables.

Page theme

Part 1

Where control meets audio

Control touchpoints on the audio path

Audio blocks TEC-X buttons Tesira logic Command strings Feedback

Control source	Audio block it acts on	Effect
ULXD4D `TX_TYPE` replies, through `CommandString15` outputs 1 to 8	Source Selectors `WLX1Type`, `WLX2Type` (logic inputs 1 to 4)	Pick `HH - 7`, `Lav - 7`, `Boundary - 7` or `Goose - 7` for each mic. Their logic outputs light the 8-channel Logic Meter.
TEC-X Volume Up and Down, through `Wlx1Ramp`, `Wlx2Ramp`, `MicRamp`, `USBRamp`	Level blocks Wireless 1, Wireless 2, Mic Mix, USB Rx (+1 and −1 inputs)	Ramp the four levels feeding Matrix Mixer inputs 2 to 5 while a button is held
TEC-X Mute buttons	The same four Level blocks	Write the mute attribute directly
Screen Up and Down Pulses, through an OR per screen	"Logic VIA": Tone Generator, Mute, Signal Present Meter	Audio blocks used as a logic path; after a 250 ms Logic Delay they set the screen selector back to idle
None	Diagnostics custom block: Aux In, Tone or Noise into Matrix Mixer input 1	Chosen by hand in Tesira; no button or logic drives it

Part 2

Audio path

Audio signal flow

Inputs and outputs Processing Mixers Control from the ULXD4D and TEC-X

Audio, stage by stage

Wireless mics (×2)

Dante Input ch 1 / 2 (Wireless-1, Wireless-2)→AEC, 4-channel block→4 Uber Filter presets→Mic-type Source Selector→Advanced Compressor→Feedback Suppressor, 16 band→Gain Sharing Auto Mixer 2×1

Each mic feeds all four EQ presets at once: HH - 7, Lav - 7, Boundary - 7, Goose - 7. The Source Selector (WLX1Type, WLX2Type) passes one of them, chosen by logic from the Shure ULXD4D's TX_TYPE report. A Peak Meter taps both mics straight off Dante.

Mixing and levels

Auto Mixer out 1→Level "Wireless 1"Auto Mixer out 2→Level "Wireless 2"Auto Mixer mix→Level "Mic Mix"USB X Input→Level "USB Rx"

These four Level blocks are what the TEC-X Volume Up, Volume Down and Mute buttons drive, through the ramp Logic States Wlx1Ramp, Wlx2Ramp, MicRamp and USBRamp.

Matrix Mixer 5×2

in 1 DIAGin 2 Mic 1in 3 Mic 2in 4 Mixin 5 USB Rx→out 1 AMP (labelled Spkr)out 2 USB Tx

The DIAG input comes from a Diagnostics custom block: a 3-input Source Selector choosing Aux In, a Tone Generator or a Noise Generator. Crosspoint levels and on/off states are runtime settings that couldn't be read reliably from the file, so check them in the Matrix Mixer dialog.

Room output

Uber Filter, 12 filter→RMS Limiter→AEC Ref→Output, 2 channel (AMP)

The AEC Ref after the limiter is the far-end reference for the AEC block, so it hears exactly what the room speakers play. An RMS Meter watches this output.

USB to the room PC

AI Noise Reduction→USB X Output (USB Tx)

An RMS Meter watches this send too.

Part 3

Control logic

Control flow, lane by lane

TEC-X buttons Tesira logic Command strings and logic outputs Devices Feedback and status Audio blocks Replies flowing back

Each lane shows Projector 1 and Projector 2 together; the P1 and P2 blocks are wired identically. Lanes 4, 6 and 9 run right to left: they carry replies and status back into the design.

What each control lane does

1 · Room power

Press to Start / Power Off→RmPowerOn / RmPowerOff→Power Both On / Off→P1 and P2 sequences

The Splash page's single button starts RmPowerOn and opens Home. The Confirm page's Power Off starts RmPowerOff and returns to Splash. Each is a one-step Logic Sequence (500 ms on, 500 ms off) whose output goes through a Fan-In OR Pulse to start both projectors' sequences at once.

2 · Projector power and input

Power (latch)→P1PowerUp / P1PowerDwn→Pulse custom block, OR Gate→ProjectorNCS1→Projector 1

Power Up Sequence: step 1 lowers the screen at once, step 2 sends PWR ON 1 s in, step 3 sends SOURCE 30 (HDMI 1) 34 s in, after the L260F's 30 s warm-up (steps of 500/500, 500/32,500 and 500/500 ms). Power Off Sequence: step 1 raises the screen, step 2 sends PWR OFF 1 s in, step 3 sends it again 36.5 s in (500/500, 500/35,000, 500/500 ms). Steps 2 and 3 meet at an OR Gate, because the L260F ignores PWR OFF during warm-up. A custom block of two Fan-In OR Pulses turns each step into a single command trigger. The projector pages' Power button is a latch: showing "Power Off" it starts the Up sequence; showing "Power On" it starts the Off sequence.

3 · Status polling

init (saved on)→Boot pulse→LogicDelay3, 250 ms→P1Poll / P2Poll→PWR? MUTE? FREEZE? SOURCE? ERR?

The init Logic State is saved on, so at boot it fires a Fan-In OR Pulse. That pulse also triggers the ULXD4D query (lane 8), and 250 ms later starts both Polling Sequences. Each has five steps of 500 ms on and 3,000 ms off and repeats indefinitely, so a projector is asked one question every 3.5 s and gets a full pass every 17.5 s. On connect, each projector block first sends the Epson handshake ESC/VP.net from its Connection Sequence.

4 · Status replies

Projector reply→27 response patterns→Logic Selectors→Projector Status meter

Each reply that matches a pattern pulses a logic output into one of five Logic Selectors: POWER (standby, normal, warm, cool, abnormal), A/V MUTE, FREEZE, SOURCE (eleven inputs) and ERROR. Their outputs light a 19-indicator Logic Meter per projector. A PWR=05 (abnormal) reply also sends ERR? straight away. In standby the L260F answers only the power query, so the mute, freeze and source indicators hold their last values.

5 · Screens

Screen Up / Down→P1Screen→Up / Down Pulse→LogicOutput1→Screen 1

P1Screen is a three-state Logic Selector: 1 Down, 2 Up, 3 idle. Screen Down sets state 1 and Screen Up sets state 2; the power sequences drive inputs 1 and 2 the same way. The Down output pulses Logic Output 1 channel 1, and the Up output pulses channel 2.

6 · Screen re-arm and status

Up or Down Pulse→OR→"Logic VIA"→LogicDelay1, 250 ms→P1Screen input 3

A Logic Selector only pulses when its state changes, so a second press of the same button would do nothing. After every move, an OR feeds the "Logic VIA" custom block: the logic drives a mute on a tone, a signal-present meter turns the tone back into logic, and a 250 ms Logic Delay sets the selector to state 3 (idle). The same pulses also set a Screen State selector, which lights the Screen Status meter.

7 · Video mute and freeze

Freeze / Video Mute (latch)→P1AVMute / P1Freeze→Pulse custom block→MUTE / FREEZE ON, OFF

Both are two-state Logic Selectors: state 1 Off, state 2 On. The button sends the opposite of what it shows, so "Video Mute Off" sets state 2 and sends MUTE ON. If the selector is already in that state nothing is sent.

8 · Mic type query

Boot · connect · mute release→CommandString15→Shure ULXD4D

CommandString15 sends < GET 0 TX_TYPE > three ways: from its Connection Sequence when it connects, from the boot pulse on its INIT input, and whenever the receiver reports TX_MUTE_BUTTON_STATUS RELEASED (response 9 sends command 1). So releasing a transmitter's mute button re-checks both channels.

9 · Mic type replies

REP n TX_TYPE→8 patterns→WLX1Type / WLX2Type→EQ preset

Patterns ?LXD2, ?LXD1, ?LXD6 and ?LXD8 match handheld, bodypack, boundary and gooseneck transmitters; the ? wildcard also covers QLX-D. Outputs 1 to 4 drive channel 1's Source Selector and outputs 5 to 8 drive channel 2's, picking HH - 7, Lav - 7, Boundary - 7 or Goose - 7. A transmitter that matches nothing leaves the last preset in place. An 8-channel Logic Meter shows the current choice.

10 · Levels

Volume Up / Down · Mute→Ramp Logic States→Level +1 / −1→Matrix Mixer

Each ramp (Wlx1Ramp, Wlx2Ramp, MicRamp, USBRamp) is a two-channel Logic State. Volume Up sets channel 1 on press and hold and clears it on release; Volume Down does the same on channel 2. Channel 1 drives the Level block's +1 input and channel 2 its −1 input, so the level moves only while a button is held. Mute writes the Level block's mute attribute directly, with no logic in between.

TEC-X page map

Arrows are the Page Flip links. Every page below Home also has a Back or Home button that returns one level up. Confirm's Power Off ends at Splash; its Go Back returns to Home.

Part 4

Reference

Button map

Page	Button	Type	What it sends	Result	Goes to
Splash	Press to Start Projectors turn on and screens lower	Momentary	Press: `RmPowerOn startSequence`	Room Power On: starts both projectors' Power Up Sequences	Home
Home	Projector Controls	Momentary	Nothing	Page change only	Projector Controls
Home	Audio Controls	Momentary	Nothing	Page change only	Audio Controls
Home	Power Room Off	Momentary	Nothing	Page change only	Confirm
Projector Controls	Home	Momentary	Nothing	Page change only	Home
Projector Controls	Projector 1 Controls	Momentary	Nothing	Page change only	Projector 1
Projector Controls	Projector 2 Controls	Momentary	Nothing	Page change only	Projector 2
Projector 1	Back	Momentary	Nothing	Page change only	Projector Controls
Projector 1	Power Off / Power On	Latch	Showing "Power Off": `P1PowerUp startSequence` Showing "Power On": `P1PowerDwn startSequence`	Projector 1 Power Up Sequence: screen down, PWR ON, then HDMI 1 Projector 1 Power Off Sequence: screen up, PWR OFF, then a PWR OFF retry
Projector 1	Screen Up	Momentary	Press: `P1Screen set state 2 true`	Screen 1 up: Logic Output 1, channel 2
Projector 1	Screen Down	Momentary	Press: `P1Screen set state 1 true`	Screen 1 down: Logic Output 1, channel 1
Projector 1	Freeze Off / Freeze On	Latch	Showing "Freeze Off": `P1Freeze set state 2 true` Showing "Freeze On": `P1Freeze set state 1 true`	Sends FREEZE ON to Projector 1 Sends FREEZE OFF to Projector 1
Projector 1	Video Mute Off / Video Mute On	Latch	Showing "Video Mute Off": `P1AVMute set state 2 true` Showing "Video Mute On": `P1AVMute set state 1 true`	Sends MUTE ON to Projector 1 Sends MUTE OFF to Projector 1
Projector 2	Back	Momentary	Nothing	Page change only	Projector Controls
Projector 2	Power Off / Power On	Latch	Showing "Power Off": `P2PowerUp startSequence` Showing "Power On": `P2PowerDwn startSequence`	Projector 2 Power Up Sequence: screen down, PWR ON, then HDMI 1 Projector 2 Power Off Sequence: screen up, PWR OFF, then a PWR OFF retry
Projector 2	Screen Up	Momentary	Press: `P2Screen set state 2 true`	Screen 2 up: Logic Output 2, channel 2
Projector 2	Screen Down	Momentary	Press: `P2Screen set state 1 true`	Screen 2 down: Logic Output 2, channel 1
Projector 2	Freeze Off / Freeze On	Latch	Showing "Freeze Off": `P2Freeze set state 2 true` Showing "Freeze On": `P2Freeze set state 1 true`	Sends FREEZE ON to Projector 2 Sends FREEZE OFF to Projector 2
Projector 2	Video Mute Off / Video Mute On	Latch	Showing "Video Mute Off": `P2AVMute set state 2 true` Showing "Video Mute On": `P2AVMute set state 1 true`	Sends MUTE ON to Projector 2 Sends MUTE OFF to Projector 2
Audio Controls	Home	Momentary	Nothing	Page change only	Home
Audio Controls	Microphone Controls	Momentary	Nothing	Page change only	Microphone Controls
Audio Controls	Level Controls	Momentary	Nothing	Page change only	Level Controls
Microphone Controls	Back	Momentary	Nothing	Page change only	Audio Controls
Microphone Controls	Wireless 1	Momentary	Nothing	Page change only	Wireless 1
Microphone Controls	Wireless 2	Momentary	Nothing	Page change only	Wireless 2
Wireless 1	Back	Momentary	Nothing	Page change only	Microphone Controls
Wireless 1	Volume Up	Momentary	Press: `Wlx1Ramp set state 1 true` Hold: `Wlx1Ramp set state 1 true` Release: `Wlx1Ramp set state 1 false`	Starts ramping Wireless 1 up Stops ramping Wireless 1 up
Wireless 1	Unmuted / Muted	Latch	Showing "Unmuted": `Wlx1Level set mute 1 true` Showing "Muted": `Wlx1Level set mute 1 false`	Mutes Wireless 1 Unmutes Wireless 1
Wireless 1	Volume Down	Momentary	Press: `Wlx1Ramp set state 2 true` Hold: `Wlx1Ramp set state 2 true` Release: `Wlx1Ramp set state 2 false`	Starts ramping Wireless 1 down Stops ramping Wireless 1 down
Wireless 2	Back	Momentary	Nothing	Page change only	Microphone Controls
Wireless 2	Volume Up	Momentary	Press: `Wlx2Ramp set state 1 true` Hold: `Wlx2Ramp set state 1 true` Release: `Wlx2Ramp set state 1 false`	Starts ramping Wireless 2 up Stops ramping Wireless 2 up
Wireless 2	Unmuted / Muted	Latch	Showing "Unmuted": `Wlx2Level set mute 1 true` Showing "Muted": `Wlx2Level set mute 1 false`	Mutes Wireless 2 Unmutes Wireless 2
Wireless 2	Volume Down	Momentary	Press: `Wlx2Ramp set state 2 true` Hold: `Wlx2Ramp set state 2 true` Release: `Wlx2Ramp set state 2 false`	Starts ramping Wireless 2 down Stops ramping Wireless 2 down
Level Controls	Back	Momentary	Nothing	Page change only	Audio Controls
Level Controls	Microphone Mix	Momentary	Nothing	Page change only	Microphone Mix
Level Controls	USB Audio	Momentary	Nothing	Page change only	USB Audio
Microphone Mix	Back	Momentary	Nothing	Page change only	Level Controls
Microphone Mix	Volume Up	Momentary	Press: `MicRamp set state 1 true` Hold: `MicRamp set state 1 true` Release: `MicRamp set state 1 false`	Starts ramping Mic Mix up Stops ramping Mic Mix up
Microphone Mix	Unmuted / Muted	Latch	Showing "Unmuted": `MicLevel set mute 1 true` Showing "Muted": `MicLevel set mute 1 false`	Mutes Mic Mix Unmutes Mic Mix
Microphone Mix	Volume Down	Momentary	Press: `MicRamp set state 2 true` Hold: `MicRamp set state 2 true` Release: `MicRamp set state 2 false`	Starts ramping Mic Mix down Stops ramping Mic Mix down
USB Audio	Back	Momentary	Nothing	Page change only	Level Controls
USB Audio	Volume Up	Momentary	Press: `USBRamp set state 1 true` Hold: `USBRamp set state 1 true` Release: `USBRamp set state 1 false`	Starts ramping USB Rx up Stops ramping USB Rx up
USB Audio	Unmuted / Muted	Latch	Showing "Unmuted": `USBLevel set mute 1 true` Showing "Muted": `USBLevel set mute 1 false`	Mutes USB Rx Unmutes USB Rx
USB Audio	Volume Down	Momentary	Press: `USBRamp set state 2 true` Hold: `USBRamp set state 2 true` Release: `USBRamp set state 2 false`	Starts ramping USB Rx down Stops ramping USB Rx down
Confirm	Power Off	Momentary	Press: `RmPowerOff startSequence`	Room Power Off: starts both projectors' Power Off Sequences	Splash
Confirm	(blank spacer)	Momentary	Nothing	No action
Confirm	Go Back	Momentary	Nothing	Page change only	Home

Commands are shown exactly as stored in the TEC-X block. A latch button sends the action stored with the state it is showing, then switches to the other state.

Command strings

Projector command	String	Sent by
1 Power Query	`PWR?~0D`	Polling step 1
2 Power Off	`PWR OFF~0D`	Power Off Sequence, steps 2 and 3
3 Power On	`PWR ON~0D`	Power Up Sequence, step 2
4 A/V Mute Query	`MUTE?~0D`	Polling step 2
5 A/V Mute Off	`MUTE OFF~0D`	AV Mute selector, state 1
6 A/V Mute On	`MUTE ON~0D`	AV Mute selector, state 2
7 Freeze Query	`FREEZE?~0D`	Polling step 3
8 Freeze Off	`FREEZE OFF~0D`	Freeze selector, state 1
9 Freeze On	`FREEZE ON~0D`	Freeze selector, state 2
10 Source Query	`SOURCE?~0D`	Polling step 4
11 Source HDMI 1	`SOURCE 30~0D`	Power Up Sequence, step 3
12 Source HDMI 2	`SOURCE A0~0D`	Not wired
13 Error Query	`ERR?~0D`	Polling step 5, and a `PWR=05` reply

Projector reply	Logic output	Selector input
`PWR=00`, `04`, `09`	1	POWER: standby
`PWR=01`	2	POWER: normal
`PWR=02`	3	POWER: warm
`PWR=03`	4	POWER: cool
`PWR=05`	5	POWER: abnormal (also sends `ERR?`)
`MUTE=OFF`, `MUTE=ON`	6, 7	A/V MUTE
`FREEZE=OFF`, `FREEZE=ON`	8, 9	FREEZE
`SOURCE=30`, `A0`, `10`, `20`, `41`, `51`, `52`, `53`, `56`, `59`, `58`	10 to 20	SOURCE: HDMI 1, HDMI 2, Comp 1, Comp 2, Video, USB Display, USB, LAN, Mirroring 1, Mirroring 2, Spotlight
`ERR=00`	21	ERROR: none
`ERR=01`, `04`, `06`, `FF`	22	ERROR: error

ULXD4D (`CommandString15`)	Pattern	Result
Command 1, TX MODEL GET	`< GET 0 TX_TYPE >`	Asks both channels for their transmitter type
Responses 1 to 4	`*< REP 1 TX_TYPE ?LXD2 >`, `?LXD1`, `?LXD6`, `?LXD8`	Outputs 1 to 4: WLX1Type picks HH - 7, Lav - 7, Boundary - 7 or Goose - 7
Responses 5 to 8	`*< REP 2 TX_TYPE ?LXD2 >`, `?LXD1`, `?LXD6`, `?LXD8`	Outputs 5 to 8: WLX2Type, same four presets
Response 9	`*< REP ? TX_MUTE_BUTTON_STATUS RELEASED >`	Sends command 1 again

Projector 1 uses ProjectorNCS1 and Projector 2 uses CommandString17; both have the same 13 commands and 27 response patterns, on TCP port 3629. The ULXD4D block uses TCP port 2202.

Logic blocks in the file

Block type	Instance tags	Job
Logic Sequence	`RmPowerOn`, `RmPowerOff`	Room power, one step each
Logic Sequence	`P1PowerUp`, `P2PowerUp`, `P1PowerDwn`, `P2PowerDwn`	Projector power, three steps each
Logic Sequence	`P1Poll`, `P2Poll`	Status polling, five steps, repeats
Logic Selector	`P1Screen`, `P2Screen`	Screen control: Down, Up, idle
Logic Selector	`P1AVMute`, `P2AVMute`, `P1Freeze`, `P2Freeze`	Video mute and freeze: Off, On
Logic Selector	POWER, A/V MUTE, FREEZE, SOURCE, ERROR per projector; Screen State per screen	Turn replies and screen moves into status
Logic State	`Wlx1Ramp`, `Wlx2Ramp`, `MicRamp`, `USBRamp`	Volume ramps: channel 1 up, channel 2 down
Logic State	`init`	Saved on; fires once at boot
Fan-In OR Pulse	Up Pulse, Down Pulse, Power Both On, Power Both Off, boot pulse, and pairs inside the pulse custom blocks	Turn a state change into one short trigger
OR	`Logic1`, `Logic2`; OR Gates `Logic3`, `Logic4`	Screen re-arm trigger; PWR OFF plus its retry
Logic Delay	`LogicDelay1`, `LogicDelay2`, `LogicDelay3`	250 ms: screen re-arm and polling start
Custom block	"Logic VIA" (one per screen)	Tone, mute and signal-present meter that re-arm the screen selector
Custom block	Pulse blocks (three per projector)	Two Fan-In OR Pulses each, for power, A/V mute and freeze
Command String	`ProjectorNCS1`, `CommandString17`, `CommandString15`	Projector 1, Projector 2, ULXD4D
Logic Output	`LogicOutput1`, `LogicOutput2`	Screen relays: channel 1 Down, channel 2 Up
Logic Meter	Projector Status ×2, Screen Status ×2, Logic Meter 8 Channel	Status shown in Tesira

Audio blocks in the file

Stage	Block	Instance tag	Feeds

Instance tags are the names to use for TTP and for TEC-X actions. Blocks without a custom tag keep Tesira's default name, such as Aec1 or Mixer2.

Check on site

The screen relays are labelled channel 1 Down and channel 2 Up. The drawings call for Logic I/O pin 1 = Screen 1 Up and pin 2 = Screen 1 Down, so confirm the hardware allocation and test each screen before landing wires.
Power, Freeze, Video Mute and Mute are latch buttons that keep their own state. After Room Power On, a projector page's Power button can still show "Power Off".
Polling doesn't wait for a reply, so a button press that lands at the same moment as a poll can be missed. Power Off has a retry; Power On doesn't.