Join Tencent RTC at NAB Show 2024 in Las Vegas!
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Only  $9.9! Get 50,000 minutes with our Starter Plan, perfect for your MVP project.
Only $9.9! Get 50,000 minutes with our Starter Plan, perfect for your MVP project.
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Join Tencent RTC at NAB Show 2024 in Las Vegas!
Learn more 
Only  $9.9! Get 50,000 minutes with our Starter Plan, perfect for your MVP project.
Only $9.9! Get 50,000 minutes with our Starter Plan, perfect for your MVP project.
Grab It Now 
RTC Engine
Overview
  • Web
    • Demo Quick Run
    • SDK Quick Start
    • Basic Features
      • Screen Sharing
      • Live Streaming
      • Media Device
      • Audio Volume
      • Set Encoding Profile
      • Detect Network Quality
      • Detect Capabilities
    • Advance Features
      • Enable AI Denoiser
      • Enable Audio Mixer
      • Enable Watermark
      • SEI Message
      • Custom Capturing and Rendering
      • Web Beautification Effects
    • Best Practices
      • Optimize Multi-Person Video Calls
      • Handle Autoplay Restriction
      • Handle Firewall Restriction
    • API List
    • Released Notes
    • Supported Platforms
    • Web FAQs
  • Android
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Newwork Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCStatistics
      • TRTCCloudListener
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • Error Codes
    • Release Notes
  • iOS
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCCloudDelegate
      • TRTCStatistics
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • ErrorCode
    • Release Notes
  • macOS
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Testing Hardware Devices
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • TRTCCloud
      • TRTCCloudDelegate
      • TRTCStatistics
      • TXAudioEffectManager
      • TXBeautyManager
      • TXDeviceManager
      • Type Definition
      • Deprecated Interface
      • ErrorCode
      • Release Notes
    • Release Notes
  • Windows C++
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Setting Video Quality
      • 10.Rotating Videos
    • Testing Hardware Devices
    • Testing Network Quality
    • Custom Capturing and Rendering
    • Custom Audio Capturing and Playback
    • Client APIs
      • Overview
      • ITRTCCloud
      • ITRTCStatistics
      • TRTCCloudCallback
      • ITXAudioEffectManager
      • ITXDeviceManager
      • Type Definition
      • Deprecated Interface
      • Error Codes
    • Release Notes
  • Electron
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Client APIs
      • Overview
      • Error Codes
  • Flutter
    • Integration
      • 1.API Examples
      • 2.Importing the SDK
      • 3.Entering a Room
      • 4.Subscribing to Audio/Video Streams
      • 5.Publish Audio/Video Streams
      • 6.Exiting a Room
      • 7.Sensing Network Quality
      • 8.Enabling Screen Sharing
      • 9.Sharing Computer Audio
      • 10.Setting Video Quality
      • 11.Rotating Videos
    • Client APIs
      • Overview
      • Error Codes
  • Unity
    • Integration
      • 1.API Examples
      • 2Importing the SDK
    • Client APIs
      • Overview
      • Error Codes
  • Qt
    • Integration
      • 1.Importing the SDK
  • Overview
    • Overview
  • Pricing
    • RTC-Engine Packages
    • Billing of On-Cloud Recording
    • Billing of MixTranscoding and Relay to CDN
    • Billing Explanation for Subscription Package Duration
    • Billing of Monitoring Dashboard
    • Free Minutes
    • Pay-As-You-Go
  • Concepts
  • Features
  • Performance Statistics
  • FAQs
    • FAQs for Beginners
    • Migration Guide
      • Twilio Video to Tencent RTC
      • Billing
      • Features
      • UserSig
      • Firewall Restrictions
      • How to Downsize Installation Package
      • TRTCCalling for Web
      • Audio and Video Quality
      • Others
RTC Engine

Testing Hardware Devices

Overview

Given that it is difficult for users to detect device problems during a call, we recommend that you test devices such as cameras and mics before a video call.

Supported Platforms

iOS
Android
macOS
Windows
Electron
Web
×
×
✓ (Web)

Testing Camera

You can use the startCameraDeviceTestInView API of TRTCCloud to test a camera and can use the setCurrentCameraDevice API to switch cameras during testing.
macOS
Windows (C++)
Windows (C#)
// Open the camera testing page, on which you can preview camera images and switch cameras.
- (IBAction)startCameraTest:(id)sender {
// Start camera testing. `cameraPreview` is `NSView` on macOS or `UIView` on iOS.
[self.trtcCloud startCameraDeviceTestInView:self.cameraPreview];
}

// Close the camera testing page.
- (void)windowWillClose:(NSNotification *)notification{
// Stop camera testing.
[self.trtcCloud stopCameraDeviceTest];
}

// Start camera testing. Pass in the control handle that renders video.
void TRTCMainViewController::startTestCameraDevice(HWND hwnd)
{
trtcCloud->startCameraDeviceTest(hwnd);
}

// Stop camera testing.
void TRTCMainViewController::stopTestCameraDevice()
{
trtcCloud->stopCameraDeviceTest();
}

// Start camera testing. Pass in the control handle that renders video.
private void startTestCameraDevice(Intptr hwnd)
{
mTRTCCloud.startCameraDeviceTest(hwnd);
}

// Stop camera testing.
private void stopTestCameraDevice()
{
mTRTCCloud.stopCameraDeviceTest();
}


Testing Mic

You can use the startMicDeviceTest API of TRTCCloud to measure mic volume in real time. The result is returned via a callback.
macOS
Windows (C++)
Windows (C#)
// Sample code for mic testing
-(IBAction)micTest:(id)sender {
NSButton *btn = (NSButton *)sender;
if (btn.state == 1) {
// Start mic testing.
__weak __typeof(self) wself = self;
[self.trtcCloud startMicDeviceTest:500 testEcho:^(NSInteger volume) {
dispatch_async(dispatch_get_main_queue(), ^{
// Refresh the mic volume bar.
[wself _updateInputVolume:volume];
});
}];
btn.title = @"Stop test";
}
else{
// Stop mic testing.
[self.trtcCloud stopMicDeviceTest];
[self _updateInputVolume:0];
btn.title = @"Start test";
}
}

// Sample code for mic testing
void TRTCMainViewController::startTestMicDevice()
{
// Set the interval for triggering the volume callback and listen for the `onTestMicVolume` callback. In the sample, the interval is set to 500 ms.
uint32_t interval = 500;
// Start mic testing.
trtcCloud->startMicDeviceTest(interval);
}

// Stop mic testing.
void TRTCMainViewController::stopTestMicDevice()
{
trtcCloud->stopMicDeviceTest();
}

// Sample code for mic testing
private void startTestMicDevice()
{
// Set the interval for triggering the volume callback and listen for the `onTestMicVolume` callback. In the sample, the interval is set to 500 ms.
uint interval = 500;
// Start mic testing.
mTRTCCloud.startMicDeviceTest(interval);
}

// Stop mic testing.
private void stopTestMicDevice()
{
mTRTCCloud.stopMicDeviceTest();
}


Testing Speaker

You can use the startSpeakerDeviceTest API of TRTCCloud to test whether a speaker works properly by playing a default MP3 file.
macOS
Windows (C++)
Windows (C#)
// Sample code for speaker testing
// Take an NSButton for example. In `xib`, set the title of the button in the on and off state to "Stop Test" and "Start Test".
- (IBAction)speakerTest:(NSButton *)btn {
NSString *path = [[NSBundle mainBundle] pathForResource:@"test-32000-mono" ofType:@"mp3"];
if (btn.state == NSControlStateValueOn) {
// Click "Start Test".
__weak __typeof(self) wself = self;
[self.trtcEngine startSpeakerDeviceTest:path onVolumeChanged:^(NSInteger volume, BOOL playFinished) {
// The subsequent steps involve the UI and need to be executed in the main queue.
dispatch_async(dispatch_get_main_queue(), ^{
// `_updateOutputVolume` means updating the speaker volume indicator on the UI.
[wself _updateOutputVolume:volume];
if (playFinished) {
// Set the button status to "Start Test" after playback is completed.
sender.state = NSControlStateValueOff;
}
});
}];
} else {
// Click "Stop Test".
[self.trtcEngine stopSpeakerDeviceTest];
[self _updateOutputVolume:0];
}
}

// Update the speaker volume indicator.
- (void)_updateOutputVolume:(NSInteger)volume {
// `speakerVolumeMeter` is `NSLevelIndicator`.
self.speakerVolumeMeter.doubleValue = volume / 255.0 * 10;
}

// Sample code for speaker testing
void TRTCMainViewController::startTestSpeakerDevice(std::string testAudioFilePath)
{
// `testAudioFilePath` is the absolute path of the audio file (in WAV or MP3 format) and must be a UTF-8-encoded string.
// Listen for the `onTestSpeakerVolume` callback to get the speaker volume.
trtcCloud->startSpeakerDeviceTest(testAudioFilePath.c_str());
}

// Stop speaker testing.
void TRTCMainViewController::stopTestSpeakerDevice() {
trtcCloud->stopSpeakerDeviceTest();
}

// Sample code for speaker testing
private void startTestSpeakerDevice(string testAudioFilePath)
{
// `testAudioFilePath` is the absolute path of the audio file (in WAV or MP3 format) and must be a UTF-8-encoded string.
// Listen for the `onTestSpeakerVolume` callback to get the speaker volume.
mTRTCCloud.startSpeakerDeviceTest(testAudioFilePath);
}

// Stop speaker testing.
private void stopTestSpeakerDevice() {
mTRTCCloud.stopSpeakerDeviceTest();
}