Subtitles: How to recognize speech in the browser and get SRT
The 'Subtitles' tool recognizes speech from uploaded audio directly in the browser and allows you to download subtitles with timecodes in SRT format. It does not require installing any software and works with files up to 20 MB and duration up to 5 minutes. In this guide we will prepare the recording, select a language, run generation and check the result to obtain a usable SRT file. We will also discuss the tool's limitations and typical errors that can be fixed manually.
Open tool: Subtitle generator ↗Preparing audio before upload
Recognition quality directly depends on the clarity of speech. If the recording contains background music, street noise or echo, the local model may make more mistakes. Before uploading it is advisable to listen to the file and make sure the voice is clearly audible and the volume level is sufficient. The tool accepts audio up to 20 MB and duration up to 5 minutes, so long recordings must be split into fragments and processed separately.
If the recording was made in a noisy room, try using an audio editor for noise reduction or at least trim fragments with strong interference. Fast speech and unclear diction also reduce accuracy: the automation may not always manage to recognize words that a person finds hard to make out. Whenever possible, ask the speaker to speak more slowly or use a better microphone.
Do not upload files containing multiple speakers at the same time - the tool does not separate replies by voices. If the recording is a dialogue, subtitles may go as a continuous stream and you will have to manually mark who each replica belongs to.
Example: audio of an interview on the street, where passing cars are audible. Recognition may skip entire phrases, so such a file is better pre-cleaned.
Formulating the task and selecting language
The tool's interface is simple: a text field for instructions, language selection and Generate button. Many users write too general instructions, such as 'make subtitles', without specifying the audio language and the desired subtitle language. This leads to unexpected results. Clearly specify the language spoken in the recording and the language needed for subtitles, if they differ.
Do not try to use complex instructions with style, markup or timing wishes - the tool has no settings for styles, control panels or preview. It simply outputs an SRT file. If you expect editing of time intervals or formatting, this must be done manually after export.
Remember that the tool does not automatically translate speech while maintaining ideal quality. If the audio is in English and subtitles are needed in Russian, the result may be approximate. It is better to first get subtitles in the original language, and then translate them separately if necessary.
Example: a user writes 'Make subtitles in Russian', but the audio is in English. The tool may attempt to translate, but the quality will be low.
Generation and text verification
After pressing the Generate button the tool outputs the result in a separate panel. You can copy the text or download it in TXT format, and also get an SRT file with timecodes. Immediately after generation necessarily read the received text: the local model may not know specific terms, names, abbreviations or numbers. Particular attention should be given to proper names and professional vocabulary.
Check that the timecodes correspond to the speech. If the audio has long pauses or multiple speakers, intervals may shift. The tool does not support automatic splitting into replicas, so subtitles may go as a continuous stream. In such case you will have to manually separate lines and correct timings in an SRT editor.
If there are too many errors, try improving the audio and running generation again with a clearer instruction. Sometimes splitting the recording into shorter fragments and processing them separately helps.
Example: in audio they say 'one twenty three', and the subtitle shows '100 23'. This is a typical recognition error that needs to be fixed manually.
Manual editing and synchronization
After downloading the SRT open it in a text editor or subtitle program. Compare the text with the audio, marking discrepancies. Fix errors manually. If subtitles lag or rush, adjust the timecodes. The tool is not designed for precise synchronization in complex cases, so manual editing is normal.
To check timings use a video player with subtitle support. Load the SRT file and start playback: you will immediately see whether replicas match the speech. If subtitles start, for example, two seconds later, you can massively shift the time in the editor.
Do not forget that automatic subtitles are a draft requiring improvement. Save the original audio to be able to recheck disputed moments. If you plan to use subtitles for professional video, it is better to allocate time for thorough proofreading.
Example: after generation you see that subtitles start two seconds later. You can massively shift the time in the editor.
Tool limitations
The tool does not support batch processing, automatic saving or integration with other services. It also does not generate audio or video, clone voice or create photorealistic images. All it does - recognizes speech and outputs SRT. Do not expect editing or formatting functions from it.
Moreover, the model may make mistakes, and queue and availability may vary. Do not rely on it for critical tasks without verification. If you need subtitles for professional video, it is better to use specialized software.
The tool is not designed to work directly with video files: you upload only audio. If you have video, first extract the sound track from it. Also remember that the maximum audio duration is 5 minutes and size is 20 MB.
Example: the tool will not be able to create subtitles for a video longer than 5 minutes at once.
Practical recommendations
Always check the audio before upload: remove noise, normalize volume. Formulate instructions clearly: specify language, desired format and any special wishes. If the result is unsatisfactory, do not be afraid to experiment with different fragments.
Use SRT editors to fix errors. Save the original audio so you can recheck if needed. And remember that automatic subtitles are a draft requiring improvement.
If you need to process many files, do it one by one, as batch processing is not supported. For each fragment specify the language and, if necessary, add explanations in the text field.
Example: before upload trim the audio to 5 minutes and remove noise using an audio editor.
Creating subtitles with the 'Subtitles' tool is a simple but attention-requiring process. Main errors are related to poor audio quality, unclear instructions and lack of verification. Following our tips will help minimize problems and get a quality SRT file. Remember that the tool has limitations and you should always check the result manually.
Open tool: Subtitle generator ↗Interface translations are machine-assisted and may need refinement.