by   dafaWang Java Version: 1.0 License: No License

kandi X-RAY | AudioRecorder Summary

kandi X-RAY | AudioRecorder Summary

AudioRecorder is a Java library. AudioRecorder has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.


            kandi-support Support

              AudioRecorder has a low active ecosystem.
              It has 9 star(s) with 0 fork(s). There are no watchers for this library.
              It had no major release in the last 12 months.
              AudioRecorder has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of AudioRecorder is 1.0

            kandi-Quality Quality

              AudioRecorder has 0 bugs and 0 code smells.

            kandi-Security Security

              AudioRecorder has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              AudioRecorder code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              AudioRecorder does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              AudioRecorder releases are available to install and integrate.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed AudioRecorder and discovered the below as its top functions. This is intended to give you an instant insight into AudioRecorder implemented functionality, and help decide if they suit your requirements.
            • region Audio Recorder
            • Converts Pcm file to wave file .
            • Write data to file .
            • Copies the amv2 file .
            • Initializes the view .
            • Release the pcm .
            • Reads a chunk of bytes from the underlying stream .
            • get audio file absolute path
            • Gets the WAV header .
            • Closes this encoder .
            Get all kandi verified functions for this library.

            AudioRecorder Key Features

            No Key Features are available at this moment for AudioRecorder.

            AudioRecorder Examples and Code Snippets

            Javadot img1Lines of Code : 15dot img1no licencesLicense : No License
            copy iconCopy
             compile 'com.wangdafa:PausableRecordLib:1.0.1'
             compile 'com.wangdafa:PausableRecordLib:1.0.1@aar'
            if (mAudioRecorder.getStatus() == AudioRecorder.Status.STATUS_NO_READY) {
                tempAudioPath = new SimpleDateFormat("yyyy  

            Community Discussions


            How to start audio recording when app running on background?
            Asked 2022-Mar-14 at 03:45

            I am working on audio recording. when application running on foreground i have to start audio recording and going to background at that time audio recording working fine.

            But my question is that how to start audio recording when i am already in background, My audio recording function fired like this:

            I have a Bluetooth LE device with buttons and an iOS app. Those two are paired (Bluetooth LE device and the iPhone which runs the iOS app) and the iOS app is listening for events on the Bluetooth LE device, events like a hit of a button.

            Now, when the user hits a button on the Bluetooth LE device, the iOS app captures the event and I am able to run code even if the app is in background, but I am not able to start a voice recording.

            I have already enable Background Modes:

            Here is my Code for Audio Recording:



            Answered 2022-Jan-12 at 22:36

            This is not possible to do without an explicit UI interaction for security reasons, or else it would be possible to "spy" on a person (once paired, a person outside of a room could start recording and listen to what happens inside the room).

            Workarounds could be:

            • send a local notification e.g. "The device is ready to record, want to start?". Once you tap this, the app opens in foreground, and should be able to start the recording.
            • use CallKit (suitable for phone-like use cases). When the user presses "Accept" in the CallKit system UI, it is possible to start recording audio even in background.



            Canceling setTimeout early
            Asked 2022-Mar-14 at 00:58

            I'm working on an audio recording class that either runs for an allotted period of time (such as 5 seconds) or can be stopped early by the user.

            I'm using setTimeout to define the recording length, which works. However, I'm having trouble getting setTimeout working with a "stop" button. The error is as follows:

            Cannot read properties of null (reading 'stop')

            When the startRecording function executes, the handleStopRecording function is called which sets a timer with the "stopRecording" function. If the "stopRecording" function is called before the time elapses (by pressing the "stop" button), the function call that was initially in setTimeout will still execute when the timer expires, causing an error.

            I tried fixing this by using clearTimeout, but then the "context" of the original function call is lost and we get the same error:

            Cannot read properties of null (reading 'stop')

            Unless I'm mistaken, I think this is an issue with closure of the setTimeout function - however I'm not sure how to clear the function early with a stop button and limit recording time.

            Thank you in advance!

            App.js (React.js)



            Answered 2022-Mar-14 at 00:00

            You can try using a boolean value to check if the process is stopped. You can store it in state and change its value when starting or stopping



            How to compare amplitude from Android with iOS
            Asked 2021-Oct-08 at 09:09

            So I've read various posts and blogs on how to get the amplitude from the microphone on Android. Multiple posts suggested using this implementation:



            Answered 2021-Oct-08 at 09:09

            The easiest way to get the max amplitude on Android is a lot less code. Just call MediaRecorder.getMaxAmplitude(). It returns the max amplitude since the previous call. I'm not sure where you got the suggestion to use the call you did, that seems like the hard way.

            The units aren't specified. It should correspond to the amount of pressure picked up by the mic, but as every model will have different mics, amps, DACs, etc it isn't going to be the same on all devices. All you can be promised is it will be between 0 and (2^x)-1 where x is the number of bits per sample you picked. I'm not sure why you'd think it would be in millivolts, this isn't an electrical measurement. Sound is typically measured in dB or pascals.

            For comparing iOS to Android and trying to do matching- what are you trying to do? The code you have is just finding the max value. That's kind of uninteresting, unless all you're doing is an applause meter. If you're actually looking to compare soundwaves wouldn't you be better off taking the fourier transform and doing so in the frequency domain? The time domain is really messy for that.



            ExtAudioRecorder: "write failed: EBADF (Bad file descriptor) " in recording Audio to WAV files - Android Studio
            Asked 2021-Sep-08 at 08:59

            I'm trying to create an app that records from mic and saves file into WAV format. I found this java class that helped me record and save my recording in WAV format.



            Answered 2021-Sep-08 at 08:59

            Turns out that I found a solution to my problem, if anyone else ever faces the same issue. I actually modified the ExtAudioRecorder class and now everything seems to be working right.

            Especially after changing this line:

            audioRecorder = new AudioRecord(aSource, sRate, nChannels + 1, aFormat, bufferSize);

            into this:

            audioRecorder = new AudioRecord(aSource, sRate, nChannels, aFormat, bufferSize);

            I think the problem was lying somewhere there.

            Here's the modified code for file:



            Sound volume decreasing for no apparent reason
            Asked 2021-May-05 at 02:32

            I have an iOS app using SwiftUI. It handles a few sound files and performs some audio recording. This is the function doing the recording work:



            Answered 2021-May-05 at 02:32

            The audio session will be a decreased volume during playback after recording in .playAndRecord mode. After recording, explicitly set to something like .playback to get the volume you're expecting.



            How can I record small size voice files in Android using Titanium?
            Asked 2021-Mar-21 at 10:37

            Please help me! I want to record small size voice files in Android using Titanium.

            I am using Titanium.Media.AudioRecorder() to record voice files, but the size of the generated files are too large.

            I would like to generate small size voice files. It doesn't matter to have low quality.

            What format and what compression type should I use to get better results (small size files)? Thank you

            I am using the code below:



            Answered 2021-Mar-21 at 10:37

            If you look at the documentation you'll see that the compression and format parameters are iOS only. Android will always record default audio settings.

            You either have to

            You might be able to convert this navitve MediaRecorder example to Hyperloop.



            How can I pause a specific function in NodeJS?
            Asked 2021-Feb-25 at 16:09

            Okay, so I've been trying to do this for a long time but I just can't find a solution. I'm building a personal Voice Assistant that only records when a hotword is detected, and everything until here works fine. To record the audio, I'm using the npm package node-record-lcpm16. I can't seem to find a solution to pause or stop(and start again) the recording. On the npm website of the audiorecorder there is a function specified that says recording.stop() but it doesn't work for me. My code right now is:



            Answered 2021-Feb-25 at 16:09

            I've played about with your code.. it's definitely a fun project to play with!

            I would suggest maybe just modifying the code to record to a buffer, then send that to the google speech recognition engine.

            The reason recording.stop() was probably not working for you is that you were calling it on the stream. If we separate the recording and recordingStream variables we can control the flow better.

            I've updated the code so when we get the hotword, we stop recording, recognize the speech, then start recording again.



            Save PCM raw bytes into a DataView object
            Asked 2021-Feb-23 at 17:24

            I'm acquiring PCM raw bytes with new AudioContext({ sampleRate: 16000 }) (note, I'm using Chrome, which supports the sampleRate option), and I'd like to convert the resulting array into a DataView object.

            My current code is the following, in the stop method I read the left channel and store it as an array of Float32Arrays.



            Answered 2021-Feb-23 at 17:24

            From your comment I will assume you know how to handle s16le raw audio.

            Also notice that you are creating your ArrayBuffer with length equals the number of samples in the PCM32fSamples, should be the size in bytes, also the call to setInt16 should pass the offset in bytes.

            An alternative to set an array buffer is to construct an Int16Array. The motivation for using a DataView is to be able to write mixed type data. This will make your code more readable.



            How to pass state from class components to global state when using react hooks for global state management
            Asked 2021-Feb-22 at 23:24

            For the web app I'm building in React, I need to record audio and be able to somehow put that recorded audio in the app's global state so I can use and manipulate that recorded audio in different components of the app.

            My global state is setup using React Hooks (made and managed with useReducer, createContext, useContext) and I believe Hooks only work for functional components, not class components.

            So the issue I'm running up against is that every tutorial I've followed to get my browser microphone to work uses class components (like the code below), not functional components. And I'm assuming that this is for good reason because when I've tried to translate these class components into functional components, I get the error: "cannot read property 'finish' of 'undefined'"

            Are there ways to take this audio data (blobURL) and pass it to my global state?

            Alternatively (and ideally), is there a way to use the microphone to record audio in a functional component instead of a class component?



            Answered 2021-Feb-22 at 23:24

            Your class-based components can still "consume" the context but the syntax is a little more involved than simply using a useContext React hook.


            For your case you would import your global state context Context and render the component that needs to access the context via a function child. The child component would then need consume these context values via props.

            Some classed-based component:



            How to return current decibel level from iPhone mic
            Asked 2021-Feb-21 at 19:43

            I am trying to return the current decibel level from the iPhone's microphone. I have pieced together this code below and cannot figure out why it won't work. My expectation is that for now it will print the current peak power continuously to the console.

            So my questions/issues are:

            1. Will "peakPowerForchannel" return the current level or the max for the entire audio session?
            2. It appears my button never turns to the stop recording mode and just prints "recording started" every time it is pressed.
            3. I can't figure out why the decibel level won't print at all.

            Thanks for the help!



            Answered 2021-Feb-21 at 19:43

            Regarding peak power, here's what the docs say:

            The audio channel’s current peak power.

            (basically, the current window)

            You need to actually call startRecording() in your Button's action (right now, all you're doing is printing):


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install AudioRecorder

            You can download it from GitHub.
            You can use AudioRecorder like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the AudioRecorder component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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