What does the PCM keep for the PCM audio file?
The VoiceTracer of Philips records in the PCM (WAV) format, a stereo recording without compression. The file of the PCM audio file is the input of the engine, and the revision deck is written from it.
PCM file
PCM audio file to flashcards for revision in English
PCM audio file to flashcards for revision in English: send the file and get the text with the timecodes. One file may be up to 30 minutes on the free plan, no minute limit on Pro.
3 files a day up to 30 minutes, free99+ languagesSpeaker separation and timestamps
In short
What the PCM stores is what the engine needs. The English speech becomes the revision deck in the sections Cards, Terms to define, Self-check questions; one file may be up to 30 minutes, and 3 files a day are free.
How to get the file and turn it into flashcards for revision
- 1
Choose the import
The WAV and AIFF files, including all PCM variants, are imported into Audacity with the standard uncompressed files importer
- 2
Upload the file
The PCM audio file goes to the service through the upload widget; the speech is English, and the revision deck comes back into the chat.
- 3
Run the instruction of the revision deck
The instruction of the task asks for the revision deck and puts the answer about the PCM audio file into the sections Cards, Terms to define, Self-check questions; a claim that is not in the recording is not written.
- 4
Mark the language of the speech
The speech of the PCM audio file is English, one of the 99+ languages the engine reads, and the widget is left on English while the revision deck is written.
- 5
Check the file before the upload
The VoiceTracer of Philips records the PCM (WAV) format at 22 kHz/16 bit, 44.1 kHz/16 bit and 48 kHz/16 bit
What comes back from the engine
- TXT
One segment per line, the way a person wrote it down. It is the format to paste into a ticket, a chat or a document.
- TXT, CSV
The start and the end time of every segment, and the speakers named separately when you ask for it.
- SRT, VTT
SRT and VTT with the time of every line, so the recording can carry its own subtitles.
- Markdown, DOCX
The transcript is edited through the API and exported as Markdown for a wiki, or as DOCX for a review.
What PCM keeps, and what it says about it
| What | What the platform says |
|---|---|
| Where the file is | Audacity imports the WAV and AIFF files, including all PCM variants, and a raw PCM file without a standard header is imported with File > Import > Raw Data. |
| What the file is | The PCM codec is used by OBS Studio together with the MP4, MOV and MKV containers, as the uncompressed audio of the table. |
| What can go wrong | The VoiceTracer of Philips records in the PCM (WAV) format, a stereo recording without compression. |
| What the platform says | LPCM stands in the list of the audio formats of the VLC player, next to AMR (3GPP) and ADPCM. |
| What the platform says | In the table of the codecs and the containers of OBS Studio the PCM row names the MP4, MOV and MKV containers. |
| Length of one file | up to 30 minutes on the free plan, no minute limit on Pro |
| Free plan | $0: 3 files a day, up to 30 minutes per file, no card |
| Pro plan | $10 a month when you pay yearly ($120 a year), or $20 a month |
The case
What the recording does not give you
The file of the PCM audio file is what the PCM keeps. The PCM codec is used by OBS Studio together with the MP4, MOV and MKV containers, as the uncompressed audio of the table. The engine reads the English speech, and the sections Cards, Terms to define, Self-check questions come out of it.
Tips
A name that was never said in the PCM audio file stays out of the revision deck.
Set the language of the PCM audio file before you send the file.
The file of the PCM audio file stays on your own disk.
Questions about PCM audio file and flashcards for revision
What does the PCM say about the PCM audio file?
A WAV file from a portable recorder with a proprietary compressed audio should be opened with the FFmpeg library, not as raw data. The engine reads the English speech of the PCM audio file and writes the revision deck from that text.
How is the revision deck built from the PCM audio file?
The engine reads the English speech and the instruction writes the revision deck in the sections Cards, Terms to define, Self-check questions; every line comes from the transcript of the PCM audio file.
Is there a limit to the length of the PCM audio file?
One file of the PCM audio file may be up to 30 minutes on the free plan; the free plan gives 3 files a day.
Is a link enough for the PCM audio file?
Bring the file of the PCM audio file to your own disk and upload it here; the engine returns the revision deck with the time of every line.
Related pages
- The same task on pcm raw audio to text meeting minutes ruThe same task on another recording, with the same steps and the same sections.
- Lecture to flashcards for revisionThe page of the task: the instruction that is written for it and an example of the answer.
- Transcribe audio to textWhat the service does with a file: the formats of the export, the limits and the plans.
Sources
- MAudacity manual: Importing audio (read 2026-10-25)manual.audacityteam.org · checked
- OOBS Knowledge Base: Audio and Video Formats Guide (read 2026-10-25)obsproject.com · checked
- WPhilips: VoiceTracer audio recorder DVT4110 and DVT4115 (read 2026-10-25)www.dictation.philips.com · checked
- WVLC features: the formats it plays (read 2026-10-25)www.videolan.org · checked
- TTranscription service page (read 2026-10-25)transcrib.si · checked
Reading: 4 minutesUpdated 
Transcribsi editorial team
Drop a recording — the text arrives in a minute
Speakers by name, a time on every line, export to TXT, SRT, VTT, CSV and Markdown.
3 files a day up to 30 minutes, free99+ languagesSpeaker separation and timestamps