playback

问题 I'm on AudioKit 4.9.1 and can't manage to play a MIDI file with the new AKSequencer (replacing AKAppleSequencer ). No sound playing. Assume that MIDI file AND samples are loaded correctly since they previously worked with AKAppleSequencer . Background audio mode capability is also enabled. Here's the relevant code: (I've also tried both AKSampler and AKAppleSampler but same result) class MIDIPlayer { var sampler: AKSampler var legacySampler: AKAppleSampler var sequencer: AKSequencer init

问题 I have a few apps on the Google play store and use the number of total installs as part of my growth plan. However as of July 16, 2018 I can no longer see the "Total Installs" in my console. It only shows "Active Installs". Did Google just remove one of the most important numbers from the play store? How else can I get this stat? Can I get it in another screen or maybe through an API call? 回答1: Unfortunately, the "total user installs" metric was removed from the Statistics page in the Google

问题 I've got my computer(Windows 7) hooked up to the TV, and i very often change output device for sound between Digital Audio (S/PDIF)(High definition audio device) and my headset (2- Corsair CA-HS1 USB Headset) I wanna be able to execute a batch/script file who changes this for me so i don't have to "right click volume > playback devices > "Mark output device" and click "set default". I know it's a luxury problem, but hey, maybe I can learn something from someone? All help appreciated! 回答1: I

问题 I am using the HTML5 video tag on android and sometimes the chrome browser says it requires an explicit user gesture/click to start playback: Failed to execute 'play' on 'HTMLMediaElement': API can only be initiated by a user gesture I know this is a known issue in Android but what I don't understand is why sometimes it plays automatically and on other occasions it requires a user action! I am using the video tag with autoplay option. 回答1: As of January 24th, 2017 HTML5 video tags can

问题 I am using the HTML5 video tag on android and sometimes the chrome browser says it requires an explicit user gesture/click to start playback: Failed to execute 'play' on 'HTMLMediaElement': API can only be initiated by a user gesture I know this is a known issue in Android but what I don't understand is why sometimes it plays automatically and on other occasions it requires a user action! I am using the video tag with autoplay option. 回答1: As of January 24th, 2017 HTML5 video tags can

问题 Is it possible to use Actionscript to speed up (or slow down) a video playing? Say, having it play at twice the normal speed? If possible, can you also make it that the sound does not get all squeaky? Some Videoplayers can do that, I was wondering if it is possible to do in Flash. 回答1: I've tried to answer this questions here: Change video playback rate dynamically in Flash In short, FMS has some of those capabilities. 来源： https://stackoverflow.com/questions/2078379/fast-forwarding-flash

问题 I am trying to play video by Android videoview. Here is my code: super.onCreate(savedInstanceState); setContentView(R.layout.video); VideoView videoView = (VideoView) findViewById(R.id.videoView); videoView.setVideoURI(uri); videoView.requestFocus(); videoView.start(); This works fine, however some phones still show dialog box with title "Cannot play video". My question is how to disable this notification window? I mean, can I check if the video file is supported or not before calling

问题 I put music.mp3 in resources and then I added Windows Media Player to references. I wrote this code: WindowsMediaPlayer wmp = new WindowsMediaPlayer(); wmp.URL = "music.mp3"; wmp.controls.play(); It doesn't work. How can I play .mp3 file from resources? 回答1: I did it: WindowsMediaPlayer wmp = new WindowsMediaPlayer(); Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("PostGen.Resources.Kalimba.mp3"); using (Stream output = new FileStream ("C:\\temp.mp3", FileMode

问题 I want to play a soundtrack where I need full control over the playback speed. I have tried several ways to do this in android studio, but I'm facing the following problems: my API level is 19, so I cannot use MediaPlayer to change the speed SoundPool is supposed to play short sounds and stops after a few seconds of music What else could I try? 回答1: Something like this: public class AudioActivity extends Activity { AudioTrack audio = new AudioTrack(AudioManager.STREAM_MUSIC, 44100,

问题 I need to play multiple sound files. I have the following code: My .h class: #import <UIKit/UIKit.h> #import <AVFoundation/AVFoundation.h> #import <AudioToolbox/AudioToolbox.h> @interface ViewController : UIViewController { AVAudioPlayer *musicPlayer; } - (IBAction)music1:(id)sender; - (IBAction)music2:(id)sender; - (IBAction)music3:(id)sender; - (IBAction)music4:(id)sender; - (IBAction)music5:(id)sender; @end My .m file #import "ViewController.h" @interface ViewController () @end