VideoHelp Forum

Software For Converting Speech to Text For Captions/Subtitles

brispuss — Mon, 08 Jun 2026 04:24:13 GMT

I have a video that has speech in a foreign language. I would like to ultimately convert the speech to English subtitle/caption for this video.

Looking for local computer, offline software that does speech to text conversion, preferably, directly to English. That is, automatic language translation from foreign language to English text caption/subtitle, all done in one step.

Least desirable option is for the software to convert the video foreign speech to foreign text first. This means that translating the foreign text would have to be done manually later as another step to translate to English text captions/subtitles.

I don't want to use any online service as I don't know what else, if anything, these online services will do with the uploaded videos?

Preferably the conversion/translating software should be free.

And post translation, it should be possible to directly edit the converted/translated English text as translations are often not accurate.

Thank you.

Easy way to rename a lot of video files. In Windows.

bizzybody — Mon, 08 Jun 2026 01:11:41 GMT

First thing you need is Karolj Kočmaro� Subtitle and Video File Renamer https://karoljkocmaros.blogspot.com/p/subtitle-video-renamer.html

Second thing is to get the episode list from epguides, for example https://epguides.com/Art21/
Click List as .csv Select the lines for the episodes you want to rename. Copy to clipboard.

number,season,episode,airdate,title,tvmaze link <-don't select line

1,1,1,21 Sep 01,"Place","https://www.tvmaze.com/episodes/930863/art21-art-in-the-21st-century-1x01-place"
2,1,2,28 Sep 01,"Identity","https://www.tvmaze.com/episodes/930864/art21-art-in-the-21st-century-1x02-identity"
3,1,3,05 Oct 01,"Spirituality","https://www.tvmaze.com/episodes/930865/art21-art-in-the-21st-century-1x03-spirituality"
4,1,4,12 Oct 01,"Consumption","https://www.tvmaze.com/episodes/930866/art21-art-in-the-21st-century-1x04-consumption"
5,2,1,09 Sep 03,"Stories","https://www.tvmaze.com/episodes/930867/art21-art-in-the-21st-century-2x01-stories"

(five lines as an example, there are 44 episodes)

Create a new text file then paste into it and save with the extension changed to .csv If your text editor doesn't allow changing that, rename it after saving.

Open the CSV file in Excel or another spreadsheet program. In Excel, the " marks are ignored when opening a CSV.

You'll have columns A B C D E F
Delete column F and clear the contents of A B C D

In column C enter ART21 in row 1. With Excel you can automatically fill the column by dragging the lower right corner of the cell down the column. Since this show name ends with a number, Excel will auto-increment it. The way to stop that is add a letter to the end, so for example make it ART21P. (P for Placeholder.)

In column F, enter .srt in row 1. Drag down to fill all of the column with .srt (any subtitle file name extension Subtitle and Video File Renamer recognizes will do here)

In column B, fill with echo

Right click column D, Format Cells, select Text. Otherwise Excel will interpret this as formulas with an exponent.
In row 1 enter S01E01 or however you prefer your season and episode numbering, as long as it ends with a number. (I never use the S.)
Drag down to the last episode of Season 1, then in the next cell down, enter S02E01
Repeat until all your seasons and episodes are numbered.

Delete column A, which should be empty.

Save the CSV file. Note that if you re-open the CSV, Excel will interpret the series and episode number column as formulas since the plain text CSV format has no way to denote the data types.

Change the .csv file name extension to .txt and open it.

The contents will be like this

echo,ART21P,S01E01,Place,.srt
echo,ART21P,S01E02,Identity,.srt
echo,ART21P,S01E03,Spirituality,.srt
echo,ART21P,S01E04,Consumption,.srt
echo,ART21P,S01E05,Stories,.srt

Do find and replace all to change ,.srt to .srt"

Find and replace all echo, with echo "" >"

Extra step due to having to change the show name, replace all ART21P with ART21

Lastly, replace all , with a space.

The lines should now be like this

echo "" >"ART21 S01E01 Place.srt"
echo "" >"ART21 S01E02 Identity.srt"
echo "" >"ART21 S01E03 Spirituality.srt"
echo "" >"ART21 S01E04 Consumption.srt"
echo "" >"ART21 S01E05 Stories.srt"

These characters are not allowed in Windows file names
< > : " / \ | ? *
If an episode title contains any of them (most often it will be a : or ?) you'll need to remove or change it.

Change the .txt file name extension to .cmd or .bat then doubleclick it. It generates an empty subtitle file for every episode. It's best to run this in an empty folder.

Use them in the subtitle side of the renamer to rename all of your video files. Then you can delete the empty subtitle files.

When you have a large number of video files to rename, this is much quicker than renaming the files one by one, typing or copying and pasting the names and other information.

About encoding?

BlurayHD — Sun, 07 Jun 2026 18:41:01 GMT

Hi people, I have my movie collection and some of this movies I need to encode and I so wish if you can tell me what about in Handbrake if I setup video encoder to 265 10 bits it will take almost 18 hours and if I select 265 10 bits NVENC it will take 2 hours, can you recomend?

Thank You in advance

Subtitle Edit Waveform not lining up with Subtitle

captain_astronaut — Sun, 07 Jun 2026 16:38:24 GMT

Hi there,

I just updated to Subtitle Edit v5.0.0-rc3. I'm noticing the subs are not lining up with the waveform. I can clearly see when someone begins talking on the waveform, but I have to move the sub past that point in order for it to sync. I'm including a pic where the voice starts on the waveform, but the voice on the picture and sub start later.

Has anyone else come across this?

Thanks

[Attachment 92612 - Click to enlarge]

Avidemux outputting at the wrong framerate

techmot — Sun, 07 Jun 2026 13:29:01 GMT

Does anyone know why when I've converted a video file in Avidemux where the framerate is 25fps, that I'm getting odd framerates like 22, 23 and 24.1?. As far as I know the programme should automatically output the framerate that the inputted video is set to.

Stuttery/jittery frames in encoded video in Handbrake

techmot — Sun, 07 Jun 2026 13:22:29 GMT

Hi, I was capturing an old home video VHS tape yesterday to my PC using my Hauppauge USB capture device and using AmarecTV as the capture programme. Most of my tapes are, due to bad storage and wear and tear, are pretty poor and do suffer from jumping and tracking problems (though the basic Bush VCR I'm using doesn't help as it's not got a very good tracking system on it, and no TBC or anything like that). I captured around 25 mins of the tape as a raw capture. Using Handbrake, I used the h.264 encoder and set the quality on the scale to lossless and the audio to AAC 320kbps (no option for passthru). But when I played back the file, at certain points the frame freezes or stutters for a few seconds. I checked the original raw capture in the same place and this freezing isn't there. I encoded the file again, this time setting video bitrate to 9000kbps, but again, this freeze stuttering is still present in certain parts of the capture.

Anyone know if this a Handbrake issue or an issue with the capture?.

Panasonic D-3 (AJ-D350/AJ-D351) Calibration & Alignment Discussion

Frosty Joey — Sun, 07 Jun 2026 04:14:17 GMT

Hello! I've recently acquired a pair of Panasonic D-3 decks (AJ-D350/AJ-D351) that I'm working to bring back into reliable operating condition. I've spent the last several weeks going through service documentation, performing board swaps, taking measurements, comparing behavior between machines, and generally getting far deeper into these decks than I ever expected.

At this point I'm less interested in basic troubleshooting suggestions and more interested in hearing from anyone with real-world experience calibrating and aligning D-3 machines. In particular, I'd love to connect with technicians who have experience with RF/envelope evaluation, servo adjustments, tape path alignment, error-rate interpretation, and the factory calibration procedures used on these decks.

I have one machine that will intermittently play and another that exhibits a different set of transport and playback-related issues. I've gathered a considerable amount of diagnostic information already, but I'd prefer not to flood this initial post with pages of measurements and scope readings unless someone has experience in these machines and is willing to dig into the details.

D-3 expertise seems increasingly difficult to find, so if you've worked on these decks in broadcast environments, Panasonic service centers, or engineering departments, I'd greatly appreciate any guidance, calibration notes, or lessons learned.

Thanks in advance. I'm eager to learn and document the process as these machines are brought back to life!

BMDCodecMJPG64.dll does have a configuration interface?

marcorocchini — Sat, 06 Jun 2026 13:29:35 GMT

Hi

I'm a cat, please patient.
thanks

I try the BMDCodecMJPG64.dll in virtualdub, it's a VFW 64bit codec

it works but I cannot configure it: I can go in the video compression settings, select it and encode

but encoding is alwais interlaced and a low bitrate.

So I wonder, is there a way to configure it by a config file, a interface also something that can allow it? thanks

BBC News HEVC stream URL

weiLahw9 — Sat, 06 Jun 2026 12:46:33 GMT

As the old hevc link doesn't anymore and since no one posted it here it is

Code:

https://vs-cmaf-push-ww-live.akamaized.net/x=4/i=urn:bbc:pips:service:bbc_news_channel_hd/hevc_iptv_hd_abr_v1.mpd

https://vs-cmaf-push-ww-live.akamaized.net/x=4/i=urn:bbc:pips:service:bbc_news_channel_hd/hevc_iptv_mse_v0.mpd

This is a freely available worldwide channel.
I don't believe there exists an HLS manifest for this HEVC variant.

N_m3u8DL-RE - Failed to get KEY, ignore.: One or more errors occurred.

stevepen1974 — Sat, 06 Jun 2026 10:25:32 GMT

Using the following command:

N_m3u8DL-RE "https://play.itunes.apple.com/WebObjects/MZPlay.woa/hls/playlist.m3u8?cc=GB&a=1667064292&dsid=16603418197& id=1391138788&l=en&aec=HD&drmUsed=widevine&xapsub= accepts-css&xapsub=accepts-css" -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36" -H "Accept: */*" -H "Origin: https://music.apple.com" -H "Referer: https://music.apple.com/" --key 0000000052eb17e46330202020202020:f301376b1992ebf4c ccb0937ef0edb52 -M format=mkv

N_m3u8DL-RE "https://play.itunes.apple.com/WebObjects/MZPlay.woa/hls/playlist.m3u8?cc=GB&a=1667064292&dsid=16603418197& id=1391138788&l=en&aec=HD&drmUsed=widevine&xapsub= accepts-css&xapsub=accepts-css" -H "Accept: */*" -H "Origin: https://music.apple.com" -H "Referer: https://music.apple.com/" -H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36" --key 0000000052eb17e46336202020202020:86e798a81340d3704 ccf34193791cdf3 -M format=mkv

I get the following errors:

Failed to get KEY, ignore.: One or more errors occurred. (The 'skd' scheme is not supported.)
Failed to get KEY, ignore.: One or more errors occurred. (The 'data' scheme is not supported.)
Failed to get KEY, ignore.: One or more errors occurred. (The 'skd' scheme is not supported.)
Failed to get KEY, ignore.: One or more errors occurred. (The 'data' scheme is not supported.)

Any advice to download/decrypt correctly, appreciated.

Cheers

Download via screen record, but accept DRM protected

Gloster — Sat, 06 Jun 2026 02:46:48 GMT

There are some tools to download videos, I prefer yt-dlp, installed via pipx.
I agree the idea of yt-dlp, no download by DRM protected webpages.

But you can all ways record your screen, e.g.: simplescreenrecorder + X11 (linux),

Downloading DRM-protected movie from youtube?

xal3xhx — Fri, 05 Jun 2026 19:03:22 GMT

hello yall,

ive been trying to download a movie i have bought on youtube for a while now.

ive been able to get the DRM keys using widevineproxy and have all the tools i need to decrypt the video file, however i cant for the life of me find a way to download the movie itself.

ive tried many tools ive found via this fourm with no luck. can anyone point me in the right direction?

Thanks!

Very good results : Compress H.264 to H.265 via ffmpeg, vmaf score 99.836

Gloster — Fri, 05 Jun 2026 16:47:43 GMT

Currently used Kubuntu 24.04. Wayland, ffmpeg 8.0

Did compress the video :

Video: h264, yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 11343 kb/s, 50 fps, 50 tbr, 90k tbn

to :
Video: hevc, yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 5075 kb/s, 50 fps, 50 tbr, 16k tbn

h.264 video-file size= 9GB. h.265 video-file size 3.7GB

VMAF score: 99.836461

the respective ffmpeg command as a script :

Code:

#!/bin/sh



for f in *.ts; do ffmpeg -y -i "$f" -map 0:v -map 0:a -vcodec libx265 -crf 16 -preset slow -vf nlmeans="1.6:7:5:3:3",unsharp="3:3:1.0" -c:a copy "$(basename "$f" .ts).mkv";done

A short description :
crf 16 = quality, less value higher quality
nlmeans = filter to reduce grain
unsharp = increase sharpness

Without the filter unsharp. I got a file size of 2.4GB (same video) and a vmaf score 95.6 .

For your information vmaf score of 100. no difference can be seen. 95.6, a good value.

Never reached this high vmaf score without "unsharp". I did decrease crf until I got a compressed file size < 1/2 source file, but the vmaf score max was 96-97.

Also I did compress with "unsharp" other videos with very equal results (vmaf score > 99.9)

I have a restriction : If I can not reduce the file size with crf 16, unsharp as given above to 1/2 of the source file-size. I decide for no compression.

Only to share my results.

Others who would like to share their results ?

Rock Am Ring Live stream

rockaddict — Fri, 05 Jun 2026 14:07:12 GMT

Hi have rock am ring via magentamusik on my pc Wanna save some sets for the future..the only FFMPEG command I know is ffmpeg -i "input" -b:v15000K RAR.mp4

NOW
I am hearing audio on my pc BUT not a test capture
is the audio DRM and to me unavailable or can anyone help

Paul

I was on here before but i cannot remember my details..sorry

Broken Ventilator Needs Mechanical Support

Subtitles — Fri, 05 Jun 2026 13:56:41 GMT

I have a ventilator that got broken. Apparently the plastic material wasn't strong enough.
As this is the best ventilator I have ever used, I don't want to throw it away just yet.
As you can see from the pictures, I need mechanical support and I would appreciate it if any mechanical engineer here can make a suggestion.

I am thinking of using a set of 4 pieces straight bracket alongside the two parts. See link below.
After that use adhesive tape over the brackets so that there is no chance to cut my fingers.

Any better ideas to this?
https://www.amazon.com/s?k=straight+bracket+6+inches+4+pcs&crid=2F4DYRXQUOCIQ&sprefix=...f=nb_sb_noss_1

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