More audio than anyone can hear
Every trip leaves hours of cab conversation behind. Across divisions it grows faster than any supervisor can listen to it.
Indian Railways · Cab communication intelligence
Hear what every cab journey is telling you.
Railcomm turns recorded loco-cab audio into searchable transcripts, rule-based safety checks and division-wide insight, so supervisors spend their time on the conversations that matter.
Time-aligned transcriptsClick a line, hear that second.
Rule-based checksEvery finding names its rule.
Role-based accessEach user sees only their scope.
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Journey review
Needs attention 00:31:4001:24:10
- 00:12:04ALPSignal two-one-four, double yellow.Operational
- 00:12:07LPDouble yellow, two-one-four.Operational
- 00:31:40LPDid you catch the match last night?Off-duty
Illustrative example, not real crew data
Built on your CVVRS recordings
We work on the audio the Crew Voice and Video Recording System already captures, and turn it into transcripts, classes and insights for the Railways.
Conventional locos to Vande Bharat and beyond
One solution for every cab that records audio, today and for the new-technology trains still to come.
English, Hindi and 20+ Indic languages
Transcripts in the language the crew actually speaks, including mixed-language cab talk.
- 6
- audio formats accepted
- 5 GB
- per recording
- 5
- line classes, not just relevant or irrelevant
- 1 click
- from a transcript line to that second of audio
Why it is needed
The cab is where safety is spoken, and almost none of it is ever heard again.
Signal call-outs, acknowledgements and cautions are the crew's shared safety net. They are also recorded, but a recording nobody can search is evidence nobody can use.
Spot-checks miss the moment
When review means picking a few files at random, the call-out that was never acknowledged is found only if someone happened to press play on it.
No common yardstick
What counts as a good cab conversation differs from one reviewer to the next, so nobody can say whether a section, a shift or a division is improving.
What we provide
From a recording to a decision in four steps.
Railcomm is one workspace that takes cab audio from upload to review, with the original recording always one click away.
- 01
Record and upload
Divisions upload cab recordings (WAV, MP3, M4A, FLAC, AAC, OGG) with the trip details. Train, loco, pilot and section are read straight from the file name.
- 02
Hear it as text
Each recording is shown with a time-aligned transcript. Click any line and the audio jumps to that second.
- 03
Check it against the rules
Every line is sorted into one of five classes, and the journey is checked for call-outs, acknowledgements, distraction, phone use, silences and red flags.
- 04
Review and act
The dashboard points to the journeys that deserve a listen, the trends worth a conversation, and the evidence needed to follow up.
Languages
Works with English, Hindi and 20+ other Indic languages, including the mixed-language talk heard in the cab.
- English
- हिन्दी · Hindi
- 20+ Indic languages
- Mixed-language speech
Inside a journey review
Every line is sorted, so the review starts where the risk is.
Instead of an all-or-nothing “relevant / irrelevant” split, each line lands in one of five classes. Noisy audio is set aside rather than counted against the crew.
See the five classesJourney review
- 00:12:04ALPSignal two-one-four, double yellow.Operational
- 00:12:07LPDouble yellow, two-one-four.Operational
- 00:31:40LPDid you catch the match last night?Off-duty
- 00:44:18ALP…kzzt… cannot… [noise]Not assessable
Rule checks
- Signal call-outs
- Call-out confirmation
- Off-duty conversation
- Crew engagement
Built for the modern fleet
Every cab has a conversation worth hearing.
Works with what is already on the footplate
From CVVRS to the newest trains. One solution.
Railcomm works on the CVVRS (Crew Voice and Video Recording System) recordings the Railways already hold and turns them into insights. It works wherever a cab recorder is fitted: conventional locomotives, Vande Bharat and other modern or future trains.
Your fleet
- Conventional locomotivesCabs fitted with CVVRS
- Vande Bharat & modern trainsetsCab audio recorded on board
- Future-tech and bullet trainsAny cab that records audio
Railcomm
CVVRS audio in, insight out.
Upload the recording. We transcribe it, class every line and report by crew. The same steps for every train.
What the Railways get
- Time-aligned transcripts
- Five line classes on every line
- Reports by loco pilot, assistant and crew
The file format and the way recordings reach us are confirmed with each fleet during a pilot.
Every line, classed. Every crew, summarised.
Five classes that sort the speech by loco pilot and assistant.
Each line of a recording lands in one class. The classes then roll up for the loco pilot (LP), the assistant loco pilot (ALP) and the pairing, so a supervisor sees who needs coaching and where, not just a pile of transcripts.
OperationalSignals, speeds, brake tests, authority, loco health
Off-dutyPersonal, social and phone talk
Red flagBypassed safety devices, admitted fatigue or overspeed
UnclassifiedSpeech that matches no rule either way
Not assessableToo noisy or too short to judge fairly
| Crew | Operational | Off-duty | Red flag | Unclassified | Not assessable |
|---|---|---|---|---|---|
| Journey A · LP 1 with ALP 1 | 84 | 6 | 0 | 8 | 2 |
| Journey B · LP 2 with ALP 1 | 71 | 14 | 2 | 9 | 4 |
| Journey C · LP 1 with ALP 2 | 78 | 9 | 0 | 10 | 3 |
Per loco pilot
Share of operational talk across their journeys, in the LP-wise report.
Per assistant and pairing
How a crew performs together, in the crew pairings view.
Fair by design
Red flags go to the top of the review sheet. Noisy lines are set aside, never counted against the crew.
The value it brings
One system, and a clear gain for everyone who touches a journey.
Better safety communication is not about catching people out. It is about making good practice visible, and risk easy to see early.
Loco pilots and assistants
Fair, specific feedback
- Feedback tied to the exact line and the exact second, not a general impression
- Good practice such as clear call-outs and confirmations is visible too
- Noisy or unclear audio is marked as not assessable instead of being held against anyone
Crew supervisors and CLIs
Listen where it matters
- A short list of journeys to review, instead of a pile of files
- Click a transcript line and hear that exact moment
- Coach with evidence the crew can hear for themselves
Division and zonal officers
A clear view of the trend
- Communication discipline over time, by section, hour of day and pilot
- Ranges and sample sizes shown, so small numbers are not over-read
- One consistent yardstick for every division
Safety and vigilance
Evidence that stands up
- Every finding names the rule it comes from
- A printable evidence pack with a tamper-evident fingerprint and a sign-off block
- A human reviewer always makes the call
Without it
- Recordings sit in storage until something goes wrong
- Review depends on who listened and what they happened to hear
- Trends are anecdotes
With Railcomm
- Every uploaded recording is searchable and reviewed against the same rules
- Reviewers start from a ranked list and jump to the exact moment
- Trends by section, hour and pilot, with sample sizes shown
Built to be trusted
Fair to the crew. Solid enough for the record.
Recordings are used for coaching and, where needed, for disciplinary follow-up. So the platform shows its reasoning, protects access and never decides on its own.
From a line to the record
Line flagged
Off-duty talk at 00:31:40, with the audio one click away
Rule cited
Every finding names the rule it comes from
A person decides
Reviewed by a supervisor, never auto-actioned
Evidence pack sealed
Tamper-evident fingerprint and a sign-off block
Rule basis on every finding
Checks are written from Indian Railways cab-conduct rules, and each result shows the rule it rests on.
Tamper-evident evidence pack
A printable pack records the rating, the evidence lines, the ruleset version and a SHA-256 fingerprint of the transcript.
Access that follows your role
Sign-in is required. Super Admins, Admins and Division Users each see only what their role and division allow.
Indicators, not verdicts
The system flags and explains. People review, decide and sign off. Nothing is concluded automatically.
What to keep in mind
We would rather you know the limits than discover them.
- Audio cannot show hand signals, posture or where someone is looking, so those need other evidence.
- Keyword matches are prompts for review, not confirmed statements, and thresholds are being tuned with railway experts.
- Figures describe the recordings that were uploaded and approved, not every journey run.
Questions
What people ask first.
Which cab recordings does Railcomm work with?
Recordings from the Crew Voice and Video Recording System (CVVRS) on conventional locomotives, and from the recorders on Vande Bharat and other modern or future trains. The file format and delivery are confirmed with each fleet during a pilot.
Which languages can it transcribe?
English, Hindi and 20+ other Indic languages, including mixed-language cab talk.
What are the five line classes?
Operational, Off-duty, Red flag, Unclassified and Not assessable. Every transcript line lands in exactly one of them.
How do loco pilots and assistants see the results?
Each journey is tied to the crew named on the recording. Reports roll the classes up per loco pilot, per assistant loco pilot and per crew pairing. Red flags are listed first for review, and noisy lines are never counted against the crew.
Get in touch
Interested? Tell us a little and we will get back to you.
Share your details and we will reach out to understand your division and show you what Railcomm can do.
- 1
You tell us who you are
Name, organisation and how to reach you. That is all we need to start.
- 2
We get in touch
We learn about your division, its recordings and what you want to improve.
- 3
We show you the platform
A walk-through of the dashboard, transcripts and compliance checks, and a talk about next steps.
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