To convert AAC to text, upload the .aac file to TranscriptX from your device, Google Drive, Dropbox or OneDrive, with no need to convert it to MP3 or WAV first. The AI transcribes the speech and shows punctuated paragraphs with timestamps. Fix any word with Edit, then click Copy, or click Download for a TXT, DOCX, PDF, SRT or VTT file.
An AAC to text converter listens to the speech in an AAC file and writes it out as text. AAC (Advanced Audio Coding) is a compressed audio format, like MP3 but usually smaller at the same quality. You find it as .aac files from some voice and call recorder apps, as audio saved out of a video, and inside many other files, such as M4A.
Typing up one hour of audio by hand takes about four hours. TranscriptX turns the AAC file into text in seconds to minutes, depending on its length, so you spend your time reading and using the transcript instead of pausing and rewinding.
Click Upload and choose From this device, Google Drive, Dropbox or OneDrive. Upload the .aac file as it is; there is no need to convert it to MP3 or WAV first.
TranscriptX detects the language and writes out the speech as paragraphs, each with a timestamp. The recording plays beside the text.
Play the parts you care about, and use Edit to fix names, numbers or terms the audio made hard to catch.
Click Copy to put the text on your clipboard. To save a file, click Download, the button next to Copy, and pick .txt, .docx, .pdf, .srt or .vtt.
TranscriptX is free every day and you can try it without an account. Open the page, upload your AAC file and read the transcript in the same browser tab. There is no software to install, so the AAC to text online converter works the same on Windows, Mac, Chromebook, iPhone and Android.
Sign in to keep your transcripts in History across devices. For long recordings or daily use, the <a href="/pricing/">Pro plan</a> adds a stronger model, speaker labels, noise reduction and unlimited transcription.
No. Upload the AAC file as it is. AAC is already compressed, so converting it to MP3 compresses the audio a second time and can only lose detail, and converting it to WAV makes the file much bigger without adding anything back.
If the file is already in Google Drive, Dropbox or OneDrive, upload it from there instead of downloading it to your device first. For very long recordings, see <a href="/transcribe-large-audio-files/">Transcribe Large Audio Files</a>, and check your plan's file size on the <a href="/pricing/">pricing page</a>.
A transcript you can work with, not just a block of words:
Sentences, commas and paragraph breaks are added for you, so the text reads like writing, not a stream of words.
Each paragraph shows where it starts in the AAC file. Turn timestamps on to check a quote against the audio, or off for clean reading text.
On the Pro plan, calls, interviews and meetings with two or more voices come back with each speaker labelled.
Write notes, checklists and timestamped bookmarks in the Notes tab next to the text.
Fix a word, a name or a number directly in the transcript before you copy or export it.
Click Download next to the Copy button and choose the format your next step needs. Use .txt for plain text or another app, .docx to edit in Word or Google Docs, and .pdf to share or file a read-only copy.
If the AAC audio came from a video, download .srt or .vtt to get a subtitle file with timing for each line. If you still have the video itself, you can upload it directly with <a href="/video-to-text/">Video to Text</a>.
Any AAC file with speech in it. The ones people convert most:
Some phone voice recorder apps save recordings as .aac. Lectures, notes to self and meetings recorded this way become text you can search.
Upload a call saved as AAC and get a written record of what was said and agreed. On the Pro plan, each speaker is labelled.
Video files such as MP4 usually carry their sound as AAC, so audio pulled out of a video is often an .aac file. Upload it and get the words, or download .srt for subtitles.
Research and press interviews recorded on a phone or app. For a full interview workflow, use <a href="/interview-transcription/">Interview Transcription</a>.
Episodes and clips saved as AAC. See <a href="/blog/how-to-transcribe-podcast/">how to transcribe a podcast</a> for show notes and quotes.
AAC keeps speech clear even at small file sizes, so accuracy depends mostly on the recording itself. A clear voice, one speaker at a time and little background noise give a transcript that needs few corrections. Crosstalk, echo, music under the speech and a distant microphone cause more errors.
Before you rely on the text, check names, numbers and technical terms against the audio using the timestamps. On the Pro plan, noise reduction helps with noisy recordings.
Not every recording is an AAC file. TranscriptX also accepts MP3, M4A, WAV, FLAC and OGG audio, and video files such as MP4 and MOV. For MP3 files, use <a href="/mp3-to-text/">MP3 to Text</a>; for WAV, <a href="/wav-to-text/">WAV to Text</a>; for M4A, <a href="/m4a-to-text/">M4A to Text</a>; for any audio format, <a href="/audio-to-text/">Audio to Text</a>; for video, <a href="/video-to-text/">Video to Text</a>.
Uploaded files are deleted automatically, and your recordings and transcripts are not used to train AI models. You can delete a single transcript, or all your data, at any time from your account. See the <a href="/privacy-policy/">Privacy Policy</a> for details.
Yes. TranscriptX is free every day and you can try it without an account. The <a href="/pricing/">Pro plan</a> is for heavy use.
No. Upload the AAC file as it is. Converting it adds a step and compresses the audio a second time.
AAC is the audio itself; M4A is a file that usually holds AAC audio inside. TranscriptX accepts both, so upload whichever file you have. For M4A, use <a href="/m4a-to-text/">M4A to Text</a>.
Yes. After the transcript appears, click Download and choose .docx. It opens in Word, Google Docs and Pages.
Yes. Click Download and choose .srt or .vtt to get a subtitle file with timing for each line.
Yes. The spoken language is detected automatically, and the transcript comes back in that language.
Upload an AAC file and get an editable transcript with timestamps. Copy the text, or download it as TXT, DOCX, PDF, SRT or VTT.
Need the step-by-step guide, with tips on AAC vs M4A and phone recordings? Read <a href="/blog/how-to-transcribe-aac-files/">how to transcribe AAC files</a>. Free to try, no account needed.
Convert AAC to Text