Unit 3 / 11

Transcription and Audio/Video Analysis: Interviews to Text, Text to News

Gains:

  • Ability to produce raw transcripts with automatic speech recognition (ASR) and use them for verification of timestamp and speaker discrimination
  • Ability to apply the discipline of verifying every quote that will be included in the news verbatim and prioritizing high error areas such as proper names, numbers and jargon.
  • Ability to understand that the transcript is a raw draft, that the quote should be preserved verbatim without correction, and that confidentiality should be considered from the beginning in sensitive records.

One of a reporter's most valuable but most exhausting raw materials is audio: interview recordings, press conferences, telephone conversations, parliamentary hearings, live broadcast archives. It takes an experienced person four to six hours to transcribe an hour-long conversation by hand—transcription, in industry parlance. Artificial intelligence-based automatic speech recognition (ASR) technology, which automatically converts voice into text, reduces this time to minutes. But a transcript is a crude draft: names, technical terms, overlapping speech, and noisy passages can all come out wrong. So the rule doesn't change: AI produces the raw transcript; It is the journalist who verifies that the quote matches the recording exactly, who said what, and the context. Every inverted sentence that enters the air cannot become news without being compared with the voice.

Step by step: from voice to reliable quote

Step 1 — Prepare the recording and consider privacy. If the audio file contains names that give away the source or the source is to be protected, pay attention to which tool it is uploaded to. For sensitive records, offline or corporate solutions with data security are preferred. Make sure the recording is authorized (some recordings have legal limits).

Step 2 — Get the raw transcript. Convert audio to text with the ASR tool. If possible, turn on the timestamp — the number of minutes each sentence was spoken — and the diarization — distinguishing who said which sentence. These make verification very fast.

Step 3 — Mark high error regions. Proper names, institutional names, numbers, foreign terms and places where two people speak at the same time are the areas where the most errors occur. Put these on your priority checklist.

Step 4 — Compare the quote with the recording. Verify each sentence you include in the news verbatim by going to the timestamp and listening to the audio. Changing even one word can change the meaning and legal responsibility.

Step 5 — Extract summary and themes with AI (separate job). Once the transcript is cleaned up, you can ask the AI ​​for draft outputs such as “major themes,” “newsworthy passages,” “contradictions” — but these provide direction, not a replacement for the quote.

Caution: Automatic decoding easily replaces a word: "we didn't" with "we did", one noun with another. Do not broadcast any sentence you put in quotation marks without listening to the audio. A false quote is both an ethical violation and a cause for disclaimer/lawsuit.

Factors affecting accuracy

Transcription quality; depends on recording quality (microphone, noise, echo), number of speakers, accent, dialect, technical jargon and audio overlap. Phone recordings and crowded environments produce the most errors. Therefore, do not be comforted by statements such as "the accuracy rate of the tool is 95%": the remaining 5% may be in the most critical places for the news, such as names and numbers.

three mini cases

Case 1 — The only word that changes. A reporter automatically transcribed an official's statement, "We cannot verify this claim." The transcript said "we can verify" — the meaning was the opposite. The reporter listened to the timestamp and corrected it. If the one-word error had not been corrected, the news would have made the official say something he did not say.

Case 2 — Time gain, parliamentary session. It would take ~25 hours to manually decode a 5 hour session recording. ASR extracted the raw text in 40 minutes; Thanks to speaker separation and timestamping, the reporter only listened to and verified 20-minute passages from three critical speakers. Total time came down to ~4 hours.

Case 3 — Jargon error. A health reporter noticed that the name of a drug mentioned in the interview with the expert was misspelled in the transcript; It was mixed with another similar-sounding drug. He had the expert confirm it with a short message. If the wrong drug name were published, it would be both false information and dangerous to health.

Copiable templates

1) Extracting a checklist from the raw transcript:

Below is an automatic transcript. Mark the following: (1) proper names and names of institutions, (2) numbers and dates, (3) foreign/technical terms, (4) places where the meaning of the sentence is unclear. These will be verified before the record. Correct the text; just produce a checklist. Transcription: [here]

2) Speaker and theme summary (from the cleaned transcript):

Use the verified transcript below. (1) Summarize each speaker's anathesis in one sentence. (2) Mark 5 newsworthy passages with timestamp. (3) List the contradictions between the speakers. Producing quotes; just show their location. Transcription: [here]

3) Citation candidate extraction (to be verified):

Select 8 candidate short quotes from this transcript that would be suitable for the news. Write the time stamp [12:04] and the speaker for each. Shorten or edit quotes; Copy it verbatim so I can confirm it from the record. Transcription: [here]

4) Noisy/unclear passage marking:

List the places in the following transcript where there is "[ambiguous]", "..." or a lack of meaning. Write down the timestamp for each one so I can listen to that part again. Fill in the blank with a guess. Transcription: [here]

Weak prompt / Strong prompt

Weak prompt: "Summarize this interview and pull out the best quotes."

Result: AI considers the mistakes in the transcription to be correct and "beautifies" the quotes, shortens and changes the sentences; At what moment it was said is lost, it cannot be verified.

Strong prompt: "Extract 8 quote candidates from this transcript EXACTLY (word for word), add timestamp and speaker to each one, do not correct or shorten any of them. Make a separate list of the unclear ones so that I can listen to them from the recording."

Difference: Strong prompt prohibits altering the quote, makes it verifiable by timestamp, and isolates the ambiguous; The journalist can verify every quotation by voice.

comparison chart

feature

What does it do?

verification effect

Automatic decryption (ASR)

Converts audio to text

Raw draft; all need confirmation

timestamp

Returns the minute of the sentence

Find and listen to the quote quickly

Speaker separation

Separates who says it

Prevents false attribution (confirmation required)

automatic summary

Drafts themes

It gives direction; quote does not replace

Automatic translation (over-transcription)

Translates foreign record

Risk of double fault; double verification

Common mistakes

  • Posting the quote without listening to it. Thinking that the sentence in the transcription is correct and using it in quotation marks; A single word mistake can reverse the meaning.
  • Trusting name and number. Forgetting that proper names, institutions and numbers are the places where mistakes occur the most.
  • Having the AI ​​"correct" the quote. Changing the sentence to make it more fluid; The quote must be verbatim, corrections are indicated in square brackets.
  • Loading sensitive record haphazardly. Sending the recording to an uncontrolled vehicle that gives away the source or without permission.
  • Blind trust in speaker discrimination. AI can confuse two people; Verify critical attribution from audio.

Practical tips to improve transcription quality

The accuracy of the transcription is determined at the very beginning of the work, at the time of recording. The reporter who goes out into the field can make the AI's job easier and reduce the burden of verification with a few simple habits. Moving the microphone closer to the speaker and reducing background noise such as wind/traffic significantly reduces the error rate. Asking speakers to take turns prevents overlapping speech (the weakest point of transcription). Having the speaker say his name and title at the beginning of the interview makes it easier for both speaker identification and later attribution. If a technical topic is to be discussed, making a list of common names and terms that will be used frequently will allow you to know in advance the most likely errors in transcription; When you hear these terms in the recording, you first check them.

A second practice: archive the transcript in its raw form and keep the corrected version separately. In the event of an objection or legal process, being able to show which word was corrected, when and how protects the journalist. Also, noting the timestamp next to each quote you verify will save you hours of searching when you need to go back to that quote months later. Once the transcript is cleaned and organized with timestamps, you can safely use the same recording over and over again for both the news story, the column, and the next follow-up story.

In summary

Automatic transcription is a powerful accelerator that reduces audio raw material from hours to minutes; timestamp and speaker separation make verification easier. But transcription is a blueprint: names, numbers, jargon, and overlapping speech often go wrong. Every quote included in the news is verified by listening to the recording verbatim; Quotations cannot be corrected by AI. Summary and theme extraction are separate tasks and only provide direction. In sensitive records, privacy and consent are considered from the beginning.

Application task

Automatically transcribe an audio recording (your own interview or a public speech). Retrieve 8 candidates with the “quote candidate removal” prompt; Listen to each one from the timestamp and mark whether it is exactly correct or not. Note how many quotes contain errors (especially names/numbers) and how long it takes to correct.

checklist

  • [ ] I consider the transcript a raw draft; I do not publish any quotes without listening to them.
  • [ ] I confirm personal names, institutions and numbers from the record first.
  • [ ] Does not correct the quote; I indicate the changes with square brackets.
  • [ ] I use timestamp and speaker distinction for verification.
  • [ ] I check the secure vehicle and permission status in records that need to be sensitive or authorized.