CHANGELOG V8.5 2026-09-21 [fix] The version of FlacCompagnonCLI.exe is now shown at start-up, read from the file's own properties like ForceRedirect.exe. CHANGELOG V8.5 2026-09-20 [new] A slot whose ForceRedirect run ends with no output at all is relaunched every second, with no limit on the number of attempts, until the slot's single 15 minute ceiling. The ceiling starts once per slot and is not restarted by a relaunch. If the previous run lasted 5 seconds or more (10 seconds on PCs with 1 or 2 logical processors), whatever is left of it is terminated first, so the RAM of two instances is never added up. Applies to LAC, FlacCompagnonCLI and FLAD. [fix] A per-slot run with no output no longer stops the analysis with the ForceRedirect.exe system error; that message is now shown only when ForceRedirect.exe itself is missing. [msg] The critical message shown after a per-slot timeout now names only the engine that timed out, without a slot number. [msg] Choosing to exit after a per-slot timeout no longer states that resume will pick the file up. The message now says the file will be analysed again, and the window waits for Enter before closing. CHANGELOG V8.5 2026-09-19 [fix] Analysis slot placement: the first slot no longer always starts at second 0. The starting position is now 3% of the track duration, limited between 2 and 10 seconds, so the intro is skipped. The remaining slots are spread evenly up to the end of the track, so the second half is always analysed. Lossless, Hi-Res and DSD use 3 slots of the length chosen in the file-selection window; lossy files use 4 slots of that length plus the fixed 10-second end slot, placed directly after the 4th slot with no overlap. Applies to both variants. [fix] The same placement formula now applies to every track length; the former separate handling of tracks under and over 12 minutes has been removed. [fix] If the chosen slot length is longer than the track (or than the audio available before the lossy end slot), it is shortened to fit, so no slot extends past the end of the file. Applies to both variants. [note] Tracks shorter than 30 seconds are still skipped. [fix] Per-slot analysis (LAC, FlacCompagnonCLI and FLAD) now has a single hard ceiling of 15 minutes per slot. Previously LAC only stopped a slot after 5 minutes without any observable progress, and a process idling at 1% CPU counted as progress forever, so a stuck slot could hang the analysis for hours. FLAD's former 10-minute cap only stopped ForceRedirect.exe and left its flad_cli.exe child running. Full analysis is unchanged. [fix] When a slot exceeds the ceiling the workers are stopped first, so nothing can relaunch a killed process, and then every ForceRedirect.exe and checker process of the slot is terminated in repeated passes together with its child processes, instead of a single kill of one process. [new] After a per-slot timeout the analysis stops with a critical message and asks whether to retry the track or exit. No slot is skipped or excluded from the vote because of a timeout. [fix] Per-slot analysis no longer retries: the 3 attempts of the LAC and FLAD workers, the internal ForceRedirect relaunch and the extra WAV re-extraction of a failed LAC slot have been removed. Full analysis keeps its own behaviour. [fix] FLAD's temporary spectrogram folders (Tmp) are now also cleared after a per-slot LAC timeout, and the start-up sweep of leftover PNG files now covers the slot2 and slot3 folders as well, not only the base one. Applies to both variants. CHANGELOG V8.5 2026-09-18 [fix] Lossless Audio Checker (LAC) 2.0.5 + FLAD: each of the 3 parallel analysis slots now runs against its own physical copy of ForceRedirect.exe, the active lossless engine (lac.exe or FlacCompagnonCLI.exe), flad_cli.exe, and FLAD's model folder, instead of all 3 slots sharing the same executables. On every startup, each file in slot2/slot3 is checked against its source by file size and re-copied if missing or a different size, so a stale, partial, or corrupted per-slot copy is automatically repaired rather than only being created once. ForceRedirect.exe remains Normal priority; the analysis engines remain BelowNormal. Applies to both variants. [fix] Full-track analysis: FLAD now runs against slot2's own physical copy of flad_cli.exe/ForceRedirect.exe instead of sharing LAC's copy, without adding a third on-disk copy - full-track and the 3-slot pipeline never run at the same time, so slot2 is safely reused. Slot2/slot3 integrity (by file size) is now re-checked before every full-track file, not just once at startup, so a file removed or corrupted mid-session is repaired automatically. Applies to both variants. [fix] FLAD's temporary spectrogram-image folder is now cleaned up for all 3 per-slot copies, not just the original one. Applies to both variants. [imp] Changed the "Full FLAC/WAV" toggle button label from ( ) / (v) to the clearer [ ] / [x]. Applies to both variants. CHANGELOG V8.5 2026-09-16 [new] Added two selectable lossless analysis engines in the CMD launcher menu: Lossless Audio Checker (LAC) 2.0.5 + FLAD (Fake Lossless Audio Detector), or FlacCompagnonCLI based on the FlacCompagnon project. Engine and workflow details are documented in README.md. [new] Added the ability to choose the audio slot length in the file-selection window, from 10 to 160 seconds, with 40 seconds as the default. A slot is an audio segment extracted from the original file for analysis. [new] Added an option in the file-selection window to analyse the entire FLAC/WAV track instead of using slots. [imp] Lossless Audio Checker (LAC) 2.0.5 + FLAD uses three parallel analysis slots for lossless files. In slot analysis, the original FLAC is temporarily converted to WAV segments for LAC, and both LAC and FLAD analyse the same corresponding temporary WAV segment for each slot. [imp] In full-track analysis with the LAC + FLAD engine, the original FLAC is temporarily converted to a full-track WAV for LAC, while FLAD analyses the original FLAC file directly. The temporary FLAC-to-WAV conversion is therefore required only for the LAC analysis path. [imp] FlacCompagnonCLI operates as a standalone lossless analysis engine without LAC or FLAD. No FLAC-to-WAV conversion is performed in either slot or full-track analysis: FlacCompagnonCLI analyses the original FLAC file directly. [new] Added Matroska (.mkv, .mka, .mks, .mk3d) support (not tested). CHANGELOG V8.4a_2026-08-06 [fix] 48 kHz files (and other sample rates up to 88199 Hz): some fake files upsampled from a lossy source (MP3, AAC, etc.) using default conversion settings could slip through as CLEAN. Detection for this case is now aligned with the higher-resolution formats (96 kHz and above), which already caught it. Applies to both variants. CHANGELOG V8.4_2026-08-03 [new] Added support for native DSD audio files (.dsf, .dff). Applies to both variants. [note] DSD detection thresholds are provisional, pending review against more real-world files. [fix] 192 kHz files: fixed a case where genuine mastering/analogue roll-off in a specific frequency range could be wrongly flagged SUSPECT instead of OK. [fix] Corrected a fake-reason message that showed the wrong frequency range in some Hi-Res cases; the verdict itself was unaffected. [fix] Corrected the in-app description of how lossless files are routed for analysis. CHANGELOG V8.3_2026-08-02 [fix] Portable variant only: fixed the automatic FFmpeg update check, which was silently failing and never actually running. CHANGELOG V8.3_2026-08-01 [new] Added a one-time warning when the selected files span more than one folder, since reports and results get merged into a shared location in that case. Applies to both variants. [fix] FFmpeg is now downloaded from a stable, versioned release instead of an unversioned daily build. Applies to both variants. CHANGELOG V8.2_2026-07-29 [fix] Fixed a bug that skipped a more thorough check for some 44.1 kHz lossless files, letting a few fake files through as CLEAN. Applies to both variants. [new] Added a new detection rule that combines evidence across several slots to catch upsampled files that other rules were missing. Applies to both variants. [fix] Fixed a crash that could stop a scan partway through for some files. Applies to both variants. [fix] Fixed a routing bug where a single successfully-read segment could close out a 44.1 kHz file without a proper second check. [new] Relaxed the SUSPECT threshold for AAC files around 192 kbps, since genuine files in that range were often flagged unnecessarily. [imp] Simplified a log message shown for 44.1 kHz files sent for a second check; no effect on results. [new] Slot extraction and analysis for 44.1 kHz lossless files now overlap instead of running one after another, for smoother performance on slower drives. [new] Reworked how 44.1 kHz lossless files are routed for a second check, for more consistent verdicts. [fix] Fixed a rare issue on some external/mechanical drives where temporary file cleanup could interfere with an in-progress scan. CHANGELOG V8.1_2026-07-25 [fix] Corrected which .NET component the installer downloads (smaller, correct download; the tool worked either way). Applies to both variants. [imp] Sped up 44.1 kHz lossless scanning while keeping the same analysis accuracy. [new] Internal identification string updated. [fix] Fixed a rare case where "no new files found" could appear incorrectly when analysing a specific file selection rather than a whole folder. CHANGELOG V8.0_2026-07-24 [note] Adjusted scan sampling on very long tracks (30+ minutes) to reduce slowdowns on external/mechanical drives. [note] All sample rates between 48 kHz and 88 kHz are now analysed with the more reliable spectrogram method instead of the older one. [fix] Critical: fixed a bug that broke results for every analysis slot except the first one, which could wrongly report slots as unreadable. Applies to both variants. [fix] Fixed the automatic FFmpeg update check, which never detected available updates due to a version-comparison bug. Applies to both variants. CHANGELOG V7.7_2026-07-21 [fix] Clarified wording in some verdict messages; no change to results. [fix] Removed an outdated exception rule that was no longer needed. CHANGELOG V7.7_2026-07-20 [fix] Critical: fixed incorrect results for non-44.1 kHz lossy files caused by an internal parameter not being passed correctly. Applies to both variants. CHANGELOG V7.7_2026-07-19 [note] Removed a couple of internal log lines that added noise without being useful. [fix] Critical: fixed a crash affecting most files during analysis. Applies to both variants. [fix] Restored a progress message that had gone missing from a scanning phase. [fix] Removed a redundant internal step, shaving a few seconds off each verdict. [imp] Fixed the auCDtect version display for some builds that don't report a version normally. [note] A couple of minor internal clarifications with no user-facing effect. CHANGELOG V7.7_2026-07-17 [fix] Fixed a resume bug that could wrongly re-queue already-processed fake files as if they were new. Applies to both variants. [imp] Sped up an internal position-selection phase that could otherwise look like a stall on long tracks; also added a progress message so it is never silent. Applies to both variants. [imp] Clarified the dependency information shown in the app. CHANGELOG V7.7_2026-07-16 [new] Added support for .mp4 files with AAC audio. [fix] Fixed a false positive on genuine 88.2 kHz DSD-derived files. [new] Verdict label changed from "OK" to "CLEAN" in the log/console for clarity; internal handling is unchanged. [new] Added extra columns to the CSV report. [new] Added a second, more detailed CSV report with one row per analysed segment. [new] Segments within each track are now analysed in parallel instead of one after another, for a meaningful speed increase. Applies to both variants. [fix] Portable variant: removed a couple of harmless leftover duplicate lines with no effect on results. [imp] Simplified the internal code that builds each result; no behaviour change. [fix] Fixed possible garbled text in auCDtect's log output on non-English Windows systems. [fix] Fixed rare hangs during parallel analysis. [note] Renamed "seg" to "slot" in log output for consistency. CHANGELOG V7.7_2026-07-04 [new] Added an exception for a specific modern AAC encoder that naturally produces a clean cutoff, so it is no longer misread as a lower-bitrate source relabelled at a higher bitrate. CHANGELOG V7.7_2026-07-02 [note] Documentation clarification only; no code change. CHANGELOG V7.7_2026-07-01 [fix] Fixed the CSV report missing rows for files skipped by quick pre-checks (file missing, unreadable, too short, bitrate too low). Applies to both variants. [new] Added a full file path and a readable duration column to the CSV report. [new] Added an optional CSV report, toggled from a button in the file-picker window. Applies to both variants. [fix] Fixed a case where a stable low cutoff across several segments was under-flagged as SUSPECT instead of FAKE. [fix] Fixed paths with spaces being split incorrectly when typed without quotes in the file-picker window. [msg] Standardized the version string format shown in the app. [fix] Fixed text left in the input box being lost if Start was clicked without confirming it first. [fix] Fixed 88.2 kHz lossless files being routed to the wrong analysis engine. Applies to both variants. [fix] Reduced false positives for 88.2 kHz files in a specific analysis zone. Applies to both variants. CHANGELOG V7.7 (2026-06-29) [fix] Fixed a crash when the target folder name contains square brackets. Applies to both variants. [new] Fine-tuned 96 kHz detection thresholds using a large batch of real test files (vinyl rips, genuine masters, confirmed fakes). CHANGELOG V7.7 (2026-06-28) [new] Added a new spectral measurement ("slope") to Hi-Res analysis, logged alongside the other per-segment values. [new] Used the new measurement to reduce false positives on genuine vinyl rips at 96 kHz. Thresholds are provisional and will be refined with more data. CHANGELOG V7.7 (2026-06-27) [fix] Fixed false positives on 96 kHz vinyl rips with high analogue noise. [fix] Fixed false positives on DSD-to-PCM files at 176.4/192 kHz. [fix] Updated the 32-bit FFmpeg download link. [new] The update check now offers to switch a 32-bit FFmpeg install to 64-bit before checking for a newer version. [fix] Fixed an incorrect architecture label and a version-parsing bug in the FFmpeg version check. Applies to both variants. CHANGELOG V7.7 (2026-06-26) [fix] Fixed a false positive (with a misleading explanation) on Hi-Res files around 40 kHz cutoff - a legitimate signature of vinyl rips and DSD-to-PCM conversions. Anyone who got a FAKE verdict on such files before this update should re-scan them. [fix] Fixed a boundary bug that misrouted some 96 kHz files into the 192 kHz analysis path. Applies to both variants. [fix] Fixed a resume bug that could pick up unrelated files instead of respecting the original selection. Applies to both variants. [msg] Clarified a misleading resume message. [msg] Added a note before the resume prompt when the current selection differs from the previously saved session. CHANGELOG V7.7 (2026-06-25) [new] Extended detection to 192 kHz files, catching upsamples from 96 kHz sources that previously passed as OK. Applies to both variants. [fix] Fixed a boundary bug at exactly 96000 Hz cutoff on 192 kHz files. Applies to both variants. CHANGELOG V7.7 (2026-06-24) [new] Added detection support for very high sample rates (176.4 kHz and above - 192/352.8/384 kHz), which previously passed unchecked above a fixed cutoff regardless of sample rate. Applies to both variants. CHANGELOG V7.7 (2026-06-23) [fix] Fixed a crash in orphan-folder cleanup mode. Applies to both variants. [fix] Fixed a potential crash when a lossy file gets a SUSPECT verdict from auCDtect and is sent for a second check. CHANGELOG V7.7 (2026-06-22) [fix] Refined a rule to avoid false positives on long files (30+ min) with a single quiet passage. [ui] Corrected in-app wording: only a log file is saved, not a full report. [fix] Removed a duplicate line from the final summary. [ui] Rewrote the in-app limitations section for clarity and accuracy; added a note about genres that are harder to verify. [known-limitation] A lossy-to-lossy transcode to a higher bitrate can sometimes leave no detectable trace, if the source already had rich high-frequency content. [investigated] A specific 48 kHz edge case was documented as a known limitation rather than fixed with an unreliable rule change. [ui] Standardized wording across all fake/suspect verdict messages in the 48 kHz path. [fix] Adjusted a lossless wall threshold so it scales correctly at 48 kHz instead of using a value tuned only for 44.1 kHz. [fix] Removed a noisy, non-useful field from the per-slot log line. CHANGELOG V7.7 (2026-06-21) [fix] Fixed a rule that could under-flag a genuinely fake slot as merely SUSPECT based on volume alone, missing real evidence of transcoding. CHANGELOG V7.7 (2026-06-20) [fix] Fixed files being skipped when the folder name contained square brackets, which gave a wrong total file count. [fix] Fixed several resume bugs: files stuck as "done" incorrectly, newly added files ignored, and manually restored files not re-queued for analysis. Applies to both variants. [ui] Clearer resume progress display. [ui] Minor formatting fix in the app info page. [ui] Clearer separators and terminology in resume/progress text. [ui] Renamed a technical log label for clarity. [fix] Removed misleading "CSV/HTML" lines from the summary, since only a log file is actually produced. [fix] Fixed a resume bug that could mix up two different multi-folder sessions; the tool now warns instead of silently resuming the wrong one. CHANGELOG V7.7 (2026-06-19) [fix] Fixed a wrong progress counter after new files were found partway through a scan. [fix] Fixed a crash when launching from a folder path containing square brackets. [fix] Fixed report/fake folders being created in the wrong system location when the path contained square brackets. [fix] The launcher now pauses on error instead of closing immediately, so error messages can actually be read. CHANGELOG V7.7 (2026-06-18) [fix] Fixed dragged folder paths with square brackets being cut short, which prevented those files from being processed. CHANGELOG V7.7 (2026-06-17) [fix] Fixed resume state not being cleared when starting a fresh scan. [fix] Fixed declining a resume not clearing the old file list, which could hide newly added files from the new scan. CHANGELOG V7.7 (2026-06-16) [imp] File-picker window now shows where tools and temporary files are stored. [fix] Fixed orphan-folder cleanup being skipped entirely when several folders were dragged in together. CHANGELOG V7.7 (2026-06-15) [imp] Program name and version are now shown at the top of the log. [chg] Corrected a mislabeled log entry (a slot position was called "random" even though it has always been fixed). [fix] Fixed empty folders not being moved to the Fake folder after cleanup, even when they should have been. [imp] Clearer explanation shown when a Hi-Res file is flagged fake. [fix] "File not found" no longer counts toward the error-skip limit, so voluntarily removed files don't risk stopping a long scan. [fix] Fixed mislabelled files (wrong file extension) being sent to the wrong analysis engine after a hardware-error retry. [fix] Fixed a related bug that could return an unclear verdict for some mislabelled files. [fix] Files are now checked by their actual audio format, not just their extension, to correctly detect mislabelled files (e.g. a FLAC saved with an .mp3 extension). [new] Mislabelled files are now automatically renamed to the correct extension at the end of a scan. [imp] The info line now also shows the container format when useful. CHANGELOG V7.7 (2026-06-14) [fix] Fixed an incorrect file count shown in the resume summary. [imp] Info line now shows fuller technical details: codec, sample rate, channels, bit depth, bitrate, duration. [fix] Corrected the wording of one verdict message. [fix] Critical: fixed an infinite loop in the folder rescan. [imp] Split the log output into two clearer lines to avoid text wrapping. [new] Encoder tag is now always shown on the info line. [imp] More detailed fake-reason messages describing the likely source quality. [new] Resume box redesigned with clearer borders. [fix] Removed a redundant log line. [fix] Fixed the "rescan complete" message not always appearing. [fix] Fixed resume not doing a full fresh rescan when declined. [fix] Fixed the file counter not resetting when resume was declined. [fix] Fixed a PowerShell 5.1 compatibility issue affecting the resume box display. [chg] "No encoder tag" is now shown explicitly instead of being left blank. [chg] Minor wording adjustment in a verdict message. CHANGELOG V7.7 (2026-06-11) [new] The tool now automatically rescans for files added mid-run and analyses them too - no user action required. CHANGELOG V7.7 (2026-06-10) [fix] Files that disappear from disk mid-scan are now handled immediately instead of triggering unnecessary retries/prompts. CHANGELOG V7.7 (2026-06-09) [fix] Fixed a rule that had silently stopped working. [new] Added a case: a single walled quiet-passage slot with normal audio energy is now flagged SUSPECT instead of passing silently. [new] The disk-error prompt now shows whether the file still exists and offers a "recheck" option. CHANGELOG V7.7 (2026-06-08 Updated) [new] Added a rule: a single hard-walled slot at high bitrate with real audio content present is now enough to flag a file as fake. CHANGELOG V7.7 (2026-06-08) [new] Combined evidence from auCDtect and the spectrogram check to catch more fakes when auCDtect itself already showed warning signs. CHANGELOG V7.7 (2026-06-07 Night) [new] 48 kHz lossless files are now analysed directly via spectrogram instead of the less reliable method used before. [new] Raised the bar across the board: a single anomalous slot alone no longer flags a file - at least two are now required. CHANGELOG V7.7 (2026-06-07) [fix] Fixed unreliable auto-resume after an automatic relaunch. [fix] Fixed the resume counter sometimes showing before the file list was ready. [fix] Clearer wording in a resume-related log message. CHANGELOG V7.7 (2026-06-05) [new] Added a rule to avoid flagging a genuine quiet passage or breakdown as fake. CHANGELOG V7.7 (2026-06-04) [new] Added a rule for long mixes: two independently low-bitrate- walled slots are enough to flag a file as fake. CHANGELOG V7.7 (2026-06-03) [new] A majority of slots showing a soft ceiling now flags fake instead of just suspect. [new] Added a dedicated, more accurate wall threshold for lossless files. CHANGELOG V7.7 (2026-06-02) [new] Added a rule to avoid flagging a single marginal quiet-passage slot at high bitrate. [fix] Fixed unreliable results when most auCDtect segments were unreadable. [fix] Fixed incorrect thresholds being used for 48 kHz files. [fix] auCDtect-based verdicts now use the same full analysis logic as the main engine, instead of relying on a single value. CHANGELOG V7.7 (2026-05-31) [new] Hi-Res lossless files (96/192 kHz) are now analysed directly via spectrogram instead of auCDtect, with dedicated frequency thresholds. [new] Session resume: progress is saved after every file. If interrupted, the next run offers to continue where it left off. [new] The FFmpeg update check now runs only once when FFmpeg is managed externally by the user. [fix] Fixed segment selection being effectively non-functional since v7.4, which caused every segment to land on a fixed position. [imp] Segment scan window now scales with track duration for better detection on longer tracks. CHANGELOG V7.6 (2026-05-25) [fix] Segment selection fix (same fix later included in the v7.7 base). [imp] Adaptive scan window (same improvement later included in the v7.7 base). CHANGELOG V7.5 (2026-05-23) [fix] Fixed wall-vote results being discarded instead of used for classification in a secondary check. [fix] Files with fewer than 2 readable auCDtect segments are now downgraded from FAKE to SUSPECT. [fix] Bitrate-unreadable lossless files now show a clearer log message. [new] Added a rule: a single slot walled below 16 kHz on a high- bitrate file (256 kbps+) triggers FAKE, except on long mixes. CHANGELOG V7.4 (2026-05-23) [fix] Fixed full-band lossless files at exactly the Nyquist frequency being wrongly classified SUSPECT. [fix] Fixed the wall message not showing the correct frequency range for a common upscale case. [new] Restored a rule: any slot walled below 17.2 kHz on a high- bitrate file is FAKE. [imp] Restored full segment refinement for all analysis slots. [fix] A single compressed track inside a long mix no longer triggers FAKE for the whole file. [fix] Fixed abrupt-end detection not being applied in a secondary check. CHANGELOG V7.3 (2026-05-22) [new] Added a high-bitrate anti-upscale rule. [fix] Fixed clipboard paste in the file-picker window for files copied directly from Explorer. [fix] Fixed layout issues in the file-picker window. [fix] Clarified the Enter-key behaviour in the file-picker window. [fix] Added a retry-with-prompt flow for disk read errors instead of silently skipping a file on the first failure. CHANGELOG V7.1 (2026-05-18) [fix] Fixed the application icon not showing on the selection window. [new] Redesigned the selection window with a full info panel. [fix] File-read failures now retry a few times before skipping instead of skipping immediately. [fix] Resume now always restarts from the last fully completed file. [imp] A fourth analysis slot is now guaranteed even on short tracks. [imp] Verdict messages now show more detail (wall vote, average cutoff, and exact frequencies) for easier manual verification. CHANGELOG V6.7 [imp] Improved detection of lossy files re-encoded to look like higher-bitrate audio. CHANGELOG V6.6 [fix] Fixed only the first of several dragged folders being scanned. [imp] Added the ability to paste paths from the clipboard. CHANGELOG V6.5 [imp] Each dragged folder is now processed independently with its own report and results. [fix] Fixed unnecessary admin-level prompts when FFmpeg is already set up correctly. [fix] Made the FFmpeg version check more reliable. CHANGELOG V6.4 [new] Required tools (auCDtect, FFmpeg) are now downloaded automatically if not found locally. CHANGELOG V6.3 [fix] Fixed a few minor logging and detection edge cases. [imp] Minimum track duration lowered from 60 to 30 seconds. [imp] Reduced false alarms in abrupt-end detection. [imp] Added an option to skip specific subfolders by name. CHANGELOG V6.2 [fix] Fixed the resume counter showing the wrong current/total file index. CHANGELOG V6.1.2 [imp] Automatic-download information is now shown before starting a scan. CHANGELOG V6.1.1 [fix] The report folder is now recreated automatically if it disappears during a very long scan. [fix] Added extra safety checks before exporting reports. CHANGELOG V6.1 [new] Added resume: progress is saved after every file, and an interrupted session can be continued on next launch. CHANGELOG V6.0 [fix] Fixed a PowerShell 5.1 compatibility issue affecting resume state. [fix] Fixed a PowerShell 5.1 compatibility issue affecting report output.