Recent questions tagged audio

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audio - How do you generate dual tone frequencies in MATLAB?

I'm interested in producing a tone frequency at runtime with the frequency and duration being variable parameters. ... advance for the comments. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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audio and video recording errors in android

I need to record audio and video files to the 3gp/mp4 format in the same file and at the same time. ... ): Caught io exception prepare failed. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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audio - Is there any way to replace or silence the camera shutter sound in android?

I'd like to replace the shutter sound (the sound the camera makes when snapping a photo) with something else ... .STREAM_SYSTEM, true); Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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audio - iOS: How do I detect if music is playing in any background music app?

I currently have my game correctly handling disabling its own BGM when music is playing in the built-in iPod ... audio in the background? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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459 views

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audio - MIDI player/synthesizer library for the iPhone

Does anyone know if there is a free/cheap MIDI player/synthesizer library that I can incorporate into my ... would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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495 views

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audio - Detect the beginning of a sound or voice in Android

I would like to listen to the mic (I guess using AudioRecord) and perform some action the very moment a person starts ... how do I analyze it ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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audio - How to play sound with Qt

How can I play sound with Qt? I tried this: QSound::play("sounds/croack.wav"); QSound doesn't work on my ... to throw in SDL or something else? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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438 views

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audio - Java - recording from mixer

I have a problem connected with my previous question. I want to record audio from mixer (speakers), I'm using javax.sound. I have ... : " + e); } out.println(); } } void pr...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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454 views

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audio - Are there any other iOS system sounds available other than 'tock'?

I have implemented an alternative keyboard on my first iPhone app. I would like to play a sound when a button is ... sound, that I can use? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

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audio - Decibel Sound Meter for Android

I am new to Android and looking to write an app for measuring decibel sound level. The idea is that when a ... ? any help will be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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739 views

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audio - getElementsByClassName not working but getElementById is

The following code works (alert pops up): var sound = document.getElementById("music"); sound.addEventListener(" ... 'm using latest Firefox. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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674 views

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audio player - Uninterrupted background music on website

I was making a website for a music band, and i was wondering the best way to play background music on the ... not yet mastered coding in flash. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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532 views

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audio - Play notification default sound only (Android)

How can I play a notification sound only (without firing a status bar notification)? I want the notification ... achieve it using MediaPlayer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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705 views

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audio - iOS Code to Convert m4a to WAV

Does anyone have any code snippets that show how to convert an M4a file to WAV? I know there are libraries ... the other way around. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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752 views

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audio - iOS SoundTouch framework BPM Detection example

I have searched all over the web and cannot find a tutorial on how to use the SoundTouch library for beat ... working. Anyone have any thoughts? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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540 views

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audio - Compile FFMpeg without most codecs

I'm looking to compile ffmpeg so that it supports only a handful of codecs. Specifically, only PCM codecs and MP3. ... I need to edit the code? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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413 views

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audio - Real low level sound generation in C#?

Anyone knows of a sensible way to create an ARBITRARY sound wave in C# and play it back from the speakers ... entirely different. Thank you. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

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audio - What is the difference between AV_SAMPLE_FMT_S16P and AV_SAMPLE_FMT_S16?

What happens when you do a conversion from AV_SAMPLE_FMT_S16P to AV_SAMPLE_FMT_S16? How is the AVFrame structure going ... and non-planar data? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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614 views

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audio - How to mute camera shutter sound on android phone

Is there any way to mute the camera shutter sound in Android (not rooted phone)? I use this code to mute my ... Is there any other work around? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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391 views

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audio - Determining the magnitude of a certain frequency on the iPhone

I'm wondering what's the easiest/best way to determine the magnitude of a given frequency in a sound. It's ... clear as per Conrad's suggestion. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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726 views

1 answer

audio - Recording sound as WAV on iphone

I am making an iPhone recording app that needs to submit the sound file as a .wav to ... instead of kAudioFileCAFType in AudioFileCreateWithURL See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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audio - Simple sound wave generator with SDL in c++

i am having problems understanding how the audio part of the sdl library works now, i know that when you ... sampling frequency of 44000 hz? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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866 views

1 answer

audio player - How to play local mp3 file with audioplayer plugin in Flutter

How to play local mp3 file with audioplayer 0.2.0 in Flutter. pubspec.yaml flutter: assets: - sounds/ ... audio from ByteData on audioPlayer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

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audio - rendering a waveform on an iphone

I was wondering if anyone has any suggestions on how to go about rendering a waveform of an audio file. I wold ... do some more searching. TIA ! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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595 views

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audio streaming - How to play online radio in android

I am working on android application in which i have play online radio streaming. i have gone through the media ... help me. Thank You. Vikram See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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378 views

1 answer

audio - Is it possible to generate complex tones in C#?

I need to create a sound containing tones of many different frequencies. Is there any way to do this in C# ... pure tones (single frequencies). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

378 views

1 answer

audio - iOs 8, start playing sound when in the background, alarm clock app

I know there are many questions on SOF, but this is the "newest" one. The thing is, I'm trying to create and ... .play() won't do anything... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

1 answer

audio - How to find the fundamental frequency of a guitar string sound?

I want to build a guitar tuner app for Iphone. My goal is to find the fundamental frequency of sound ... analyzing (or signal processing)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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