Init
and Poll
.AppID
and key. For more information, see Activating Services.QAVError.OK
will be returned with the value being 0
.Poll
API should be called periodically for GME to trigger event callbacks.Poll
periodically to trigger callbacksClass | Description |
ITMGContext | Core APIs |
ITMGRoom | Room APIs |
ITMGRoomManager | Room management APIs |
ITMGAudioCtrl | Audio APIs |
ITMGAudioEffectCtrl | Sound effect and accompaniment APIs |
API | Description |
Init | Initializes GME. |
Poll | Triggers an event callback. |
Pause | Pauses the system. |
Resume | Resumes the system. |
Uninit | Uninitializes GME. |
using GME;
Context
instance by using the ITMGContext
method instead of QAVContext.GetInstance()
.Init
API before you can use the real-time voice chat, voice message, and speech-to-text services. The Init
API must be called in the same thread as other APIs. We recommend you call all APIs in the main thread.//class ITMGContextpublic abstract int Init(string sdkAppID, string openID);
Parameter | Type | Description |
sdkAppId | string | |
openID | string | openID can only be in Int64 type, which is passed in after being converted to a string. You can customize its rules, and it must be unique in the application. To pass in openID as a string, submit a ticket for application. |
Return Value | Handling |
QAVError.OK= 0 | The SDK was initialized successfully. |
AV_ERR_SDK_NOT_FULL_UPDATE=7015 | Checks whether the SDK file is complete. We recommend that you delete it and then import it again. |
AV_ERR_SDK_NOT_FULL_UPDATE
is only a reminder but will not cause an initialization failure.int ret = ITMGContext.GetInstance().Init(sdkAppId, openID);// Determine whether the initialization is successful by the returned valueif (ret != QAVError.OK){Debug.Log("SDK initialization failed:"+ret);return;}
Poll
API in update
. The Poll
API is GME's message pump and should be called periodically for GME to trigger event callbacks; otherwise, the entire SDK service will run abnormally. For more information, see the EnginePollHelper
file in SDK Download Guide.Poll
API periodicallyPoll
API must be called periodically and in the main thread to avoid abnormal API callbacks.ITMGContext public abstract int Poll();
public void Update(){ITMGContext.GetInstance().Poll();}
Pause
event occurs in the system, the engine should also be notified for pause. For example, when the application switches to the background (OnApplicationPause, isPause=True), and you do not need the background to play back the audio in the room, please call Pause
API to pause the GME service.ITMGContext public abstract int Pause()
Resume
event occurs in the system, the engine should also be notified for resumption. The Resume
API only supports resuming voice chat.ITMGContext public abstract int Resume()
openid
, switching game account requires uninitializing GME and then using the new openid
to initialize again.ITMGContext public abstract int Uninit()
API | Description |
GenAuthBuffer | Calculates the local authentication key. |
EnterRoom | Enter a room |
ExitRoom | Leave room |
IsRoomEntered | Determines whether room entry is successful. |
SwitchRoom | Switch Room |
AuthBuffer
for encryption and authentication of relevant features. For release in the production environment, use the backend deployment key as detailed in Authentication Key.QAVAuthBuffer GenAuthBuffer(int appId, string roomId, string openId, string key)
Parameter | Type | Description |
appId | int | AppID from the Tencent Cloud console |
roomId | string | Room ID, which can contain up to 127 characters. |
openId | string | User ID, which is the same as openID during initialization. |
key | string |
public static byte[] GetAuthBuffer(string AppID, string RoomID,string OpenId, string AuthKey){return QAVAuthBuffer.GenAuthBuffer(int.Parse(AppID), RoomID, OpenId, AuthKey);}
authBuffer
is not returned to the C# layer. After a user calls the GetAuthBuffer
API for local authentication, the user can enter ""
or a random value in the called room entry API.GetAuthBuffer
doesn't need to be called.0
, the room entry is successful. If 0
is returned from the EnterRoom
API, it doesn't necessarily mean that the room entry is successful.ChangeRoomType
API, the audio type of the room will be changed.ITMGContext EnterRoom(string roomId, int roomType, byte[] authBuffer)
Parameter | Type | Description |
roomId | string | Room ID, which can contain up to 127 characters. |
roomType | ITMGRoomType | Room type. We recommend that you select ITMG_ROOM_TYPE_FLUENCY for games. For more information on room audio types, see Sound Quality. |
authBuffer | Byte[] | Authentication key |
ITMGContext.GetInstance().EnterRoom(strRoomId, ITMGRoomType.ITMG_ROOM_TYPE_FLUENCY, byteAuthbuffer);
public delegate void QAVEnterRoomComplete(int result, string error_info);public abstract event QAVEnterRoomComplete OnEnterRoomCompleteEvent;
// Listen on an event:ITMGContext.GetInstance().OnEnterRoomCompleteEvent += new QAVEnterRoomComplete(OnEnterRoomComplete);// Process the event listened on:void OnEnterRoomComplete(int err, string errInfo){if (err != 0) {ShowLoginPanel("error code:" + err + " error message:" + errInfo);return;}else{// Entered room successfully}}
Messages | Data | Example |
ITMG_MAIN_EVENT_TYPE_ENTER_ROOM | result; error_info | {"error_info":"","result":0} |
ITMG_MAIN_EVENT_TYPE_ROOM_DISCONNECT | result; error_info | {"error_info":"waiting timeout, please check your network","result":0} |
ITMG_MAIN_EVENT_TYPE.ITMG_MAIN_EVENT_TYPE_ROOM_DISCONNECT
. At this time, the SDK will automatically reconnect, and the callback is ITMG_MAIN_EVENT_TYPE_RECONNECT_START
. When the reconnection is successful, there will be a callback ITMG_MAIN_EVENT_TYPE_RECONNECT_SUCCESS
.Error Code | Cause and Suggested Solution |
7006 | Authentication failed. Causes: AppID doesn't exist or is incorrect.An error occurred while authenticating authbuff .Authentication expired. OpenId is invalid. |
7007 | The user was already in another room. |
1001 | The user was already in the process of entering a room but repeated this operation. We recommend that you not call the room entry API until the room entry callback is returned. |
1003 | The user was already in the room and called the room entry API again. |
1101 | Make sure that the SDK is initialized, OpenId complies with the rules, the APIs are called in the same thread, and the Poll API is called normally. |
AV_OK
indicates a successful async delivery. If there is a scenario in the application where room entry is performed immediately after room exit, you don't need to wait for the RoomExitComplete
callback notification from the ExitRoom
API; instead, you can directly call the EnterRoom
API.ITMGContext ExitRoom()
ITMGContext.GetInstance().ExitRoom();
public delegate void QAVExitRoomComplete();public abstract event QAVExitRoomComplete OnExitRoomCompleteEvent;
Listen on an event:ITMGContext.GetInstance().OnExitRoomCompleteEvent += new QAVExitRoomComplete(OnExitRoomComplete);Process the event listened on:void OnExitRoomComplete(){// Send a callback after room exit}
ITMGContext abstract bool IsRoomEntered()
ITMGContext.GetInstance().IsRoomEntered();
ITMG_MAIN_EVENT_TYPE.ITMG_MAIN_EVENT_TYPE_SWITCH_ROOM
, and the fields are error_info
and result
.public abstract int SwitchRoom(string targetRoomID, byte[] authBuffer);
Parameter | Type | Description |
targetRoomID | String | ID of the room to enter |
authBuffer | byte[] | Generates a new authentication key with the ID of the room to enter |
API/Notification | Description |
ITMG_MAIN_EVNET_TYPE_USER_UPDATE | The member status changed. |
AddAudioBlackList | Mutes a member in the room. |
RemoveAudioBlackList | Unmutes a member. |
ITMG_MAIN_EVNET_TYPE_USER_UPDATE
containing event_id
, count
, and openIdList
will be returned, which will be identified in the OnEvent
notification.EVENT_ID_ENDPOINT_NO_AUDIO
audio event will be sent only when the threshold is exceeded; that is, other members in the room can receive the notification that the local user stops speaking only after the local client captures no voice for two seconds.GetRecvStreamLevel
API.event_id | Description | Maintenance |
EVENT_ID_ENDPOINT_ENTER | Return the openid of the member entering the room. | Member list |
EVENT_ID_ENDPOINT_EXIT | Return the openid of the member exiting the room. | Member list |
EVENT_ID_ENDPOINT_HAS_AUDIO | Return the openid of the member sending audio packets in the room. This event can be used to determine whether a user is speaking and display the voiceprint effect. | Chat member list |
EVENT_ID_ENDPOINT_NO_AUDIO | Return the openid of the member stopping sending audio packets in the room. | Chat member list |
public delegate void QAVEndpointsUpdateInfo(int eventID, int count, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)]string[] openIdList);public abstract event QAVEndpointsUpdateInfo OnEndpointsUpdateInfoEvent;// Listen on an event:ITMGContext.GetInstance().OnEndpointsUpdateInfoEvent += new QAVEndpointsUpdateInfo(OnEndpointsUpdateInfo);// Process the event listened on:void OnEndpointsUpdateInfo(int eventID, int count, string[] openIdList){// Processswitch (eventID){case EVENT_ID_ENDPOINT_ENTER:// A member enters the roombreak;case EVENT_ID_ENDPOINT_EXIT:// A member exits the roombreak;case EVENT_ID_ENDPOINT_HAS_AUDIO:// A member sends audio packetsbreak;case EVENT_ID_ENDPOINT_NO_AUDIO:// A member stops sending audio packetsbreak;default:break;}break;}
0
indicates that the call is successful. Assume that users A, B, and C are all speaking using their mic in a room:ITMGContext ITMGAudioCtrl AddAudioBlackList(String openId)
Parameter | Type | Description |
openId | String | openid of the user to be blocked |
ITMGContext.GetInstance().GetAudioCtrl ().AddAudioBlackList (openId);
ITMGContext ITMGAudioCtrl RemoveAudioBlackList(string openId)
Parameter | Type | Description |
openId | String | User openid to be unblocked |
ITMGContext.GetInstance().GetAudioCtrl ().RemoveAudioBlackList (openId);
EnableMic
or EnableSpeaker
API.EnableAudioCaptureDevice
once during room entry and call EnableAudioSend
to enable the user to speak while pressing the button.API | Description |
EnableMic | Turns on/off the mic. |
GetMicState | The mic status was obtained. |
EnableAudioCaptureDevice | Enables/Disables the capturing device. |
IsAudioCaptureDeviceEnabled | Gets the capturing device status. |
EnableAudioSend | Enables/Disables audio upstreaming. |
IsAudioSendEnabled | Gets the audio upstreaming status. |
GetMicLevel | Gets the real-time mic volume level. |
GetSendStreamLevel | Gets the real-time audio upstreaming volume level. |
SetMicVolume | Sets the mic volume level. |
GetMicVolume | Gets the mic volume level. |
ITMGAudioCtrl EnableMic(bool isEnabled)
Parameter | Type | Description |
isEnabled | boolean | To enable the mic, set this parameter to true ; otherwise, set it to false . |
// Turn on micITMGContext.GetInstance().GetAudioCtrl().EnableMic(true);
ITMGAudioCtrl GetMicState()
micToggle.isOn = ITMGContext.GetInstance().GetAudioCtrl().GetMicState();
ITMGAudioCtrl int EnableAudioCaptureDevice(bool isEnabled)
Parameter | Type | Description |
isEnabled | bool | To enable the capturing device, set this parameter to true , otherwise, set it to false . |
// Enable capturing deviceITMGContext.GetInstance().GetAudioCtrl().EnableAudioCaptureDevice(true);
ITMGAudioCtrl bool IsAudioCaptureDeviceEnabled()
bool IsAudioCaptureDevice = ITMGContext.GetInstance().GetAudioCtrl().IsAudioCaptureDeviceEnabled();
EnableAudioCaptureDevice
API.ITMGAudioCtrl int EnableAudioSend(bool isEnabled)
Parameter | Type | Description |
isEnabled | bool | To enable audio upstreaming, set this parameter to true ; otherwise, set it to false . |
ITMGContext.GetInstance().GetAudioCtrl().EnableAudioSend(true);
ITMGAudioCtrl bool IsAudioSendEnabled()
bool IsAudioSend = ITMGContext.GetInstance().GetAudioCtrl().IsAudioSendEnabled();
ITMGAudioCtrl int GetMicLevel
ITMGContext.GetInstance().GetAudioCtrl().GetMicLevel();
ITMGAudioCtrl int GetSendStreamLevel()
int Level = ITMGContext.GetInstance().GetAudioCtrl().GetSendStreamLevel();
volume
, which is equivalent to attenuating or gaining the captured sound.ITMGAudioCtrl SetMicVolume(int volume)
Parameter | Type | Description |
volume | int | Value range: 0-200. Default value: 100 . 0 indicates that the audio is muted, while 100 indicates that the volume level remains unchanged. |
int micVol = (int)(value * 100);ITMGContext.GetInstance().GetAudioCtrl().SetMicVolume (micVol);
ITMGAudioCtrl GetMicVolume()
ITMGContext.GetInstance().GetAudioCtrl().GetMicVolume();
API | Description |
EnableSpeaker | Enables/Disables the speaker. |
GetSpeakerState | The speaker status was obtained. |
EnableAudioPlayDevice | Enables/Disables the playback device. |
IsAudioPlayDeviceEnabled | Gets the playback device status. |
EnableAudioRecv | Enables/Disables audio downstreaming. |
IsAudioRecvEnabled | Gets the audio downstreaming status. |
GetSpeakerLevel | Gets the real-time speaker volume level. |
GetRecvStreamLevel | Gets the real-time downstreaming audio levels of other members in the room. |
SetSpeakerVolume | Sets the speaker volume level. |
GetSpeakerVolume | Gets the speaker volume level. |
ITMGAudioCtrl EnableSpeaker(bool isEnabled)
Parameter | Type | Description |
isEnabled | bool | To disable the speaker, set this parameter to false ; otherwise, set it to true . |
// Turn on the speakerITMGContext.GetInstance().GetAudioCtrl().EnableSpeaker(true);
ITMGAudioCtrl GetSpeakerState()
speakerToggle.isOn = ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerState();
ITMGAudioCtrl EnableAudioPlayDevice(bool isEnabled)
Parameter | Type | Description |
isEnabled | bool | To disable the playback device, set this parameter to false ; otherwise, set it to true . |
ITMGContext.GetInstance().GetAudioCtrl().EnableAudioPlayDevice(true);
ITMGAudioCtrl bool IsAudioPlayDeviceEnabled()
bool IsAudioPlayDevice = ITMGContext.GetInstance().GetAudioCtrl().IsAudioPlayDeviceEnabled();
EnableAudioPlayDevice
API.ITMGAudioCtrl int EnableAudioRecv(bool isEnabled)
Parameter | Type | Description |
isEnabled | bool | To enable audio downstreaming, set this parameter to true ; otherwise, set it to false . |
ITMGContext.GetInstance().GetAudioCtrl().EnableAudioRecv(true);
ITMGAudioCtrl bool IsAudioRecvEnabled()
bool IsAudioRecv = ITMGContext.GetInstance().GetAudioCtrl().IsAudioRecvEnabled();
ITMGAudioCtrl GetSpeakerLevel()
ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerLevel();
ITMGAudioCtrl int GetRecvStreamLevel(string openId)
Parameter | Type | Description |
openId | string | openId of another member in the room |
int Level = ITMGContext.GetInstance().GetAudioCtrl().GetRecvStreamLevel(openId);
public abstract int SetSpeakerVolumeByOpenID(string openid, int volume);
Parameter | Type | Description |
openId | String | OpenID of the target user |
volume | int | Percentage. Recommended value range: 0-200. Default value: 100 . |
ITMGAudioCtrl SetSpeakerVolume(int volume)
Parameter | Type | Description |
volume | int | Volume level. Value range: 0-200. Default value: 100 . 0 indicates that the audio is muted, while 100 indicates that the volume level remains unchanged. |
int speVol = (int)(value * 100);ITMGContext.GetInstance().GetAudioCtrl().SetSpeakerVolume(speVol);
SetSpeakerVolume
API has not been called.
"Level" indicates the real-time volume, and "Volume" the speaker volume. The final volume = Level * Volume%. For example, if the "Level" is 100 and "Volume" is 60, the final volume is "60".ITMGAudioCtrl GetSpeakerVolume()
ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerVolume();
API | Description |
GetMicListCount | Gets the number of mics. |
GetMicList | Enumerates mics. |
GetSpeakerListCount | Gets the number of speakers. |
GetSpeakerList | Enumerates speakers. |
SelectMic | Selects a mic. |
SelectSpeaker | Selects a speaker. |
public abstract int GetMicListCount()
ITMGContext.GetInstance().GetAudioCtrl().GetMicListCount();
GetMicListCount
API to enumerate mics.public abstract int GetMicList(out List<TMGAudioDeviceInfo> devicesInfo, int count)
Parameter | Type | Description |
ppDeviceInfoList | TMGAudioDeviceInfo | Device list |
count | int | Number of mics |
Parameter of TMGAudioDeviceInfo | Type | Description |
m_strDeviceID | string | Device name |
m_strDeviceID | string | Device ID |
ITMGContext.GetInstance().GetAudioCtrl().GetMicList(devicesInfo,count);
DEVICEID_DEFAULT
is passed in, the default mic will be selected.
The 0th device id returned in the GetMicList API is the default device of the call device. If there is a selected call device, it will be maintained by service. If it is unplugged, the call device will be changed back into the default device.public abstract int SelectMic(string micID);
Parameter | Type | Description |
pMicID | string | Mic ID, which is from the list returned by GetMicList . |
string deviceID = DEVICE_ID_DEFAULT;if (index != 0){deviceID = listMicInfo[index - 1].m_strDeviceID;}ITMGContext.GetInstance().GetAudioCtrl().SelectMic(deviceID);selectedMicID = deviceID;
public abstract int GetSpeakerListCount();
ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerListCount();
GetSpeakerListCount
API to enumerate speakers.public abstract int GetSpeakerList(out List<TMGAudioDeviceInfo> devicesInfo, int count)
Parameter | Type | Description |
ppDeviceInfoList | TMGAudioDeviceInfo | Device list |
count | int | Number of speakers |
Parameter of TMGAudioDeviceInfo | Type | Description |
m_strDeviceID | string | Device name |
m_strDeviceID | string | Device ID |
int speakerCount = ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerListCount();Debug.LogFormat("speakerCount = {0}", speakerCount);if (speakerCount > 0){int ret = ITMGContext.GetInstance().GetAudioCtrl().GetSpeakerList(out listSpeakerInfo, speakerCount);Debug.LogFormat("GetSpeakerList ret = {0}", ret);if (ret != 0){listSpeakerInfo = null;}}}
DEVICEID_DEFAULT
is passed in, the default playback device will be selected.public abstract int SelectSpeaker(string speaker);
Parameter | Type | Description |
speaker | string | Speaker ID, which is from the list returned by GetSpeakerList . |
speakerDropdown = transform.Find("DevicePanel/SpeakerSelect").GetComponent<Dropdown>();if (speakerDropdown != null){speakerDropdown.onValueChanged.AddListener(delegate (int index){string deviceID = DEVICE_ID_DEFAULT;if (index != 0){deviceID = listSpeakerInfo[index - 1].m_strDeviceID;}ITMGContext.GetInstance().GetAudioCtrl().SelectSpeaker(deviceID);selectedSpeakerID = deviceID;});}
EnableLoopBack+EnableSpeaker
before you can hear your own voice.ITMGContext GetAudioCtrl EnableLoopBack(bool enable)
Parameter | Type | Description |
enable | bool | Specifies whether to enable the in-ear monitoring. |
ITMGContext.GetInstance().GetAudioCtrl().EnableLoopBack(true);
public delegate void QAVOnDeviceStateChangedEvent(int deviceType, string deviceId, bool openOrClose);public abstract event QAVOnDeviceStateChangedEvent OnDeviceStateChangedEvent;
Parameter | Type | Description |
deviceType | int | 1 indicates capturing device.2 indicates playback device. |
deviceId | string | Device GUID, which identifies a device and only applies to Windows and macOS. |
openOrClose | bool | Whether the capturing/playback device is occupied or released |
Listen on an event:ITMGContext.GetInstance().GetAudioCtrl().OnDeviceStateChangedEvent += new QAVAudioDeviceStateCallback(OnAudioDeviceStateChange);Process the event listened on:void QAVAudioDeviceStateCallback(int deviceType, string deviceId, bool openOrClose){// Callback for device occupancy and release}
EnterRoom
API.ITMGContext ITMGRoom public int GetRoomType()
ITMGContext.GetInstance().GetRoom().GetRoomType();
ITMG_MAIN_EVENT_TYPE_CHANGE_ROOM_TYPE
. The audio type of the room is determined by the first user to enter the room. After that, if a member in the room changes the room type, it will take effect for all members there.ITMGContext ITMGRoom public int ChangeRoomType(ITMGRoomType roomtype)
Parameter | Type | Description |
roomtype | ITMGRoomType | Room type to be switched to. For room audio types, see the EnterRoom API. |
ITMGContext.GetInstance().GetRoom().ChangeRoomType(ITMG_ROOM_TYPE_FLUENCY);
Returned Parameter | Description |
roomtype | Updated room type |
public abstract event QAVCallback OnChangeRoomtypeCallback;public abstract event QAVOnRoomTypeChangedEvent OnRoomTypeChangedEvent;
// Listen on an event:ITMGContext.GetInstance ().OnRoomTypeChangedEvent += new QAVOnRoomTypeChangedEvent (OnRoomTypeChangedEvent);// Process the event listened on:void OnRoomTypeChangedEvent(int roomtype){ShowWarnning (string.Format ("RoomTypeChanged current:{0}",roomtype));}
EnterRoom
API.public delegate void QAVOnRoomTypeChangedEvent(int roomtype);public abstract event QAVOnRoomTypeChangedEvent OnRoomTypeChangedEvent;
// Listen on an event:ITMGContext.GetInstance().OnRoomTypeChangedEvent += new QAVOnRoomTypeChangedEvent(OnRoomTypeChangedEvent);// Process the event listened on:void OnRoomTypeChangedEvent(int roomtype){// Send a callback after the room type is changed}
ITMG_MAIN_EVENT_TYPE_CHANGE_ROOM_QUALITY
. The returned parameters include weight
, loss
, and delay
, which are as detailed below:Parameter | Type | Description |
weight | int | Value range: 1–50. 50 indicates excellent sound quality, 1 indicates very poor (barely usable) sound quality, and 0 represents an initial meaningless value. Generally, if the value is below 30, you can remind users that the network is poor and recommend them to switch the network. |
Loss | double | Upstream packet loss rate |
Delay | int | Voice chat delay in ms |
ITMGContext abstract string GetSDKVersion()
ITMGContext.GetInstance().GetSDKVersion();
ITMGContext SetLogLevel(ITMG_LOG_LEVEL levelWrite, ITMG_LOG_LEVEL levelPrint)
Parameter | Type | Description |
levelWrite | ITMG_LOG_LEVEL | Sets the level of logs to be written. TMG_LOG_LEVEL_NONE indicates not to write. Default value: TMG_LOG_LEVEL_INFO . |
levelPrint | ITMG_LOG_LEVEL | Sets the level of logs to be printed. TMG_LOG_LEVEL_NONE indicates not to print. Default value: TMG_LOG_LEVEL_ERROR . |
ITMG_LOG_LEVEL
description:ITMG_LOG_LEVEL | Description |
TMG_LOG_LEVEL_NONE | Does not print logs |
TMG_LOG_LEVEL_ERROR | Prints error logs (default) |
TMG_LOG_LEVEL_INFO | Prints info logs |
TMG_LOG_LEVEL_DEBUG | Prints debug logs |
TMG_LOG_LEVEL_VERBOSE | Prints verbose logs |
ITMGContext.GetInstance().SetLogLevel(TMG_LOG_LEVEL_INFO,TMG_LOG_LEVEL_INFO);
Platform | Path |
Windows | %appdata%\\Tencent\\GME\\ProcessName |
iOS | Application/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/Documents |
Android | /sdcard/Android/data/xxx.xxx.xxx/files |
macOS | /Users/username/Library/Containers/xxx.xxx.xxx/Data/Documents |
ITMGContext SetLogPath(string logDir)
Parameter | Type | Description |
logDir | String | Path |
ITMGContext.GetInstance().SetLogPath(path);
ITMGRoom GetQualityTips()
string tips = ITMGContext.GetInstance().GetRoom().GetQualityTips();
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