how to use audiowrite (2024)

You did not actually ask a question.

However I get the impression that ‘dmfs’ is complex, and that is not going to work. That argument has to be a (samples x channels) real matrix, so you either need to use:



to get it to work.

If you want to write extra channels with the imaginary or phase information, that is certainly possible.

Something like that might be:

audiowrite('test.wav',[real(dmfs) imag(dmfs)],256000);


audiowrite('test.wav',[abs(dmfs) angle(dmfs)],256000);

For this, ‘dmfs’ must be a column vector.

You can reconstruct it after you read it.

If you want to save a complex vector, it might be easier to just use the save function to save it as a .mat file:

Fs = 256000;



how to use audiowrite (2024)


How does audiowrite work in MATLAB? ›

audiowrite( filename , y , Fs ) writes a matrix of audio data, y , with sample rate Fs to a file called filename . The filename input also specifies the output file format. The output data type depends on the output file format and the data type of the audio data, y .

How to use Google Docs to transcribe audio? ›

How to Use Google Docs to Transcribe Audio
  1. Step 2: Access Google Docs Voice Typing. To transcribe audio, click "Tools" in the menu bar and select "Voice typing." A microphone icon will appear on your screen. ...
  2. Step 3: Set Up Your Microphone. ...
  3. Step 4: Choose Your Language. ...
  4. Step 5: Start Transcribing.
Dec 5, 2023

How do I set up an audio file? ›

Creating an Audio File
  1. Step 1: Choose a Recording App. There are many recording apps available for both PC and Mac. ...
  2. Step 2: Connect Your Microphone. Connect your microphone to your computer. ...
  3. Step 3: Open Your Recording App. ...
  4. Step 4: Start Recording. ...
  5. Step 5: Add Markers. ...
  6. Step 6: Stop Recording. ...
  7. Step 7: Save Your Audio File.
Oct 7, 2023

How to process audio files in MATLAB? ›

To read an entire audio file into the workspace and then write the entire audio signal to your speakers, use the audioread and soundsc functions. Call audioread with a file name to read the entire audio file and the sample rate of the audio.

How to listen to audio in MATLAB? ›

After you import or record audio, MATLAB supports several ways to listen to the data:
  1. For simple playback using a single function call, use sound or soundsc . ...
  2. For more flexibility during playback, including the ability to pause, resume, or define callbacks, use the audioplayer function.

Can I convert audio to text? ›

Yes. You can use Google Docs to convert voice to text in real-time. To do so, open a document on Google Docs, then follow the steps below: Click 'Tools,' select 'Voice Typing,' and select the language.

What Google tool is used to transcribe audio? ›

Google Docs includes great features for transcribing audio! The software's in-built speech-to-text technologies make transcribing easy and efficient, even if you're entirely new to transcription. Using Google Docs, you can create free audio transcriptions across a wide variety of languages.

Is Google transcription free? ›

Convert audio into text transcriptions and integrate speech recognition into applications with easy-to-use APIs. Get up to 60 minutes for transcribing and analyzing audio free per month.* New customers also get up to $300 in free credits to try Speech-to-Text and other Google Cloud products.

How do I run an audio file? ›

Open File Manager and navigate to the folder where the audio file is located. Drag the audio file icon from File Manager and drop it on the Audio main window. The Selected file is opened. If Automatically play audio file on Open is selected in the Options-Play dialog box, the audio file starts playing.

How to make a text to speech audio file? ›

How to convert Text to Speech and download in MP3 audio format?
  1. Type or paste your text. Type or paste your text script in our online Text to Speech converter. ...
  2. Select an Ai Voice in your language. ...
  3. Select MP3 format. ...
  4. Listen to your text before converting. ...
  5. Convert your text into audio. ...
  6. Download the audio file in MP3 format.

How can I convert audio files for free? ›

You can convert almost any file to MP3 or WAV using Restream's free online audio converter tool. Select the Choose File to get started. Browse your device files or drag and drop your video file into the converter. Select Convert to upload your audio and start the conversion process.

How do I import audio into processing? ›

You do this by clicking on the sketch menu item, then select add file from the drop down menu. Find the sound file you want to use in your project, and click on it to add the sound to your project. Now you can access that file with its name.

How do I add a sound library to processing? ›

From Processing go to Sketch → Import Library → Add Library → search for “sound” and select “Sound | Provides a simple way to work with audio” → and click ↓ Install .

How do you process audio in Python? ›

Audio Processing Basics in Python
  1. Read and write audio files in different formats (WAV, MP3, WMA etc.).
  2. Play the sound on your computer.
  3. Represent the sound as a waveform, and process it: filter, resample, build spectrograms etc.

How does audioread work in MATLAB? ›

Description. [ y , Fs ] = audioread( filename ) reads data from the file named filename , and returns sampled data, y , and a sample rate for that data, Fs . [ y , Fs ] = audioread( filename , samples ) reads the selected range of audio samples in the file, where samples is a vector of the form [start,finish] .

How does Imwrite work in MATLAB? ›

imwrite( A , map , filename ) writes the indexed image in A and its associated colormap map to the file specified by filename . If A is an indexed image of data type double or single , then imwrite converts the indices to zero-based indices by subtracting 1 from each element, and then writes the data as uint8 .

How to use audio recorder in MATLAB? ›

recorder = audiorecorder( Fs , nBits , nChannels ) sets the sample rate to Fs , the bits per sample to nBits , and the number of channels to nChannels . recorder = audiorecorder( Fs , nBits , nChannels , ID ) sets the audio input device to the device specified by ID .

How does MATLAB OCR work? ›

The ocr function uses the Tesseract OCR engine to perform automatic text detection and recognition, which performs best when the text is located on a uniform background and formatted like a scanned document.

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