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Update IR Capture plugin description

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Robin Gareus 2025-01-19 15:39:50 +01:00
parent 52cb507dd5
commit 86c68de269
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1 changed files with 15 additions and 13 deletions
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28
share/scripts/ir_capture.lua
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@ -5,22 +5,24 @@ ardour {
author = "Ardour Team", author = "Ardour Team",
description = [[ description = [[
1. Calibrate I/O Latency (Menu > Window > Audio/MIDI Setup) 1. Calibrate I/O Latency (Menu > Window > Audio/MIDI Setup)
2. Create a mono track - this will be used to record the IR 2. Create a mono track - this will be used to record the IR.
3. Disconnect the input and output of that track 3. Disconnect the input and output of that track.
4. Add a mono bus and load this plugin on the bus 4. Add a mono bus and load this plugin on the bus.
5. Connect the left output of the bus to the mono track's input. 5. Connect the left output of the bus to the mono track's input.
The deconvolved Impulse Response will be output on that channel The deconvolved Impulse Response will be output on that channel.
6. Connect the right output of the bus to a hardware playback port, matching the system you want to capture 6. Connect the right output of the bus to a hardware playback port, matching the system you want to capture.
A sine-sweep will be played on that channel. A sine-sweep will be played on that channel.
7. Connect the bus input to the return signal (hardware capture) of the system under test. 7. Connect the bus' input to the return signal (hardware capture) of the system under test.
8. Record Arm the track (from 2) 8. Record Arm the track (from 2)
9. Record Arm the session 9. Record Arm the session
10. open the GUI of this plugin, enable "Capture" 10. Open the GUI of this plugin, enable "Capture"
11. Roll the transport 11. Roll the transport.
12. Wait 10 sec. (recording stops automatically) 12. Wait 10 sec (recording stops automatically).
13. Select the region on the mono track: Region > Edit > Strip Silence, Region > Gain > Normalize 13. Select the region on the mono track: Region > Edit > Strip Silence and/or manually tweak the region start:
14. Disable region-fades on the region: Region > Fades move it close to the initial impulse.
15. Export the region: Region > Export 14. Region > Gain > Normalize, or manually adjust gain.
15. Disable region-fades of the region: Region > Fades
16. Export the region to save the IR file (Region > Export)
]] ]]
} }
@ -109,7 +111,7 @@ function dsp_init (rate)
if fmax > rate * .47 then if fmax > rate * .47 then
fmax = rate * .47 fmax = rate * .47
end end
gen_sweep (20, fmax, 5, rate) gen_sweep (20, fmax, slen, rate)
rec_len = rlen * rate rec_len = rlen * rate