COM API - Read Data Functions

 

以下はアナライザーからデータを取得する機能です。 

 



 

General Status（状態）

 

IsRunning ( int *runStatus )

アンライザーをリアルタイムモードもしくはレコーディングモードでランします

Parameters: runStatus = pointer to receive the analyzer run status (0 = stopped, 1 = running or recording)

Return: S_OK = success, E_FAIL

 

GetCurrentFileTime( long channel, float *seconds )

指定したチャンネルのファイルの現在位置を求めます

Parameters: channel = 0 - 15; seconds = pointer to variable to receive the time value in seconds

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTotalFileTime( long channel, float *seconds )

指定したチャンネルのファイルのファイル長（時間）を求めます

Parameters: channel = 0 - 15; seconds = pointer to variable to receive the time value in seconds

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetCurrentFileSample( long channel, unsigned long *sample )

指定したチャンネルのファイルのサンプルポジションを求めます

Parameters: channel = 0 - 15; sample =pointer to variable to receive the sample position

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTotalFileSamples( long channel, unsigned long *samples )

指定したチャンネルのファイルの総サンプル数を求めます

Parameters: channel = 0 - 15; samples = pointer to variable to receive the total samples value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetFFTCount( long channel, long *fftcount )

ランかレコードが最後にスタートしてから実行されたFFTの回数を求めます

Parameters: channel = 0 - 15; fftcount - pointer to variable to receive the the fft count 

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetOverloadCount( long channel, long *overloadcount )

ランかレコードが最後にスタートしてから検出されたオーバーロード（クリップ）の回数を求めます

Parameters: channel = 0 - 15; overloadcount - pointer to variable to receive the the overload count 

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter



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 Peak Search Operations（ピーク）

 

GetPeakFrequency( long channel_ext, float *freq )

指定したチャンネルの全スパン中のピーク周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; freq = pointer to variable to receive the peak frequency

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakFrequencyNth( long channel_ext, long peak_number, float *freq )

指定したチャンネルの全スパン中のN次ピーク周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; peak_number = 0 - 10; freq = pointer to variable to receive the peak frequency

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakFrequencyNthSpan( long channel_ext, long peak_number, float startHz, float stopHz, float *freq )

指定したチャンネルの指定スパン中のN次ピーク周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; peak_number = 0 - 10; startHz = span start frequency; stopHz = span stop frequency; freq = pointer to variable to receive the peak frequency

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakAmplitude( long channel_ext, float *amplitude )

指定したチャンネルの全スパン中のピークアンプリチュードを求めます

Description: Get the peak amplitude in the total span for the specified channel

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; amplitude = pointer to variable to receive the peak amplitude

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakAmplitudeNth( long channel_ext, long peak_number, float *amplitude )

指定したチャンネルの全スパン中のN次ピークアンプリチュードを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; peak amplitude

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakAmplitudeNthSpan( long channel_ext, long peak_number, float startHz, float stopHz, float *amplitude )

指定したチャンネルの指定スパン中のN次ピークアンプリチュードを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; peak_number = 0 - 10; startHz = span start frequency; stopHz = span stop frequency; amplitude = pointer to variable to receive the peak amplitude

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter


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Total Power Readings（トータルパワー）

 

GetTotalPower( long channel_ext, long weighting, float *power )

Description: Get the total power in the total span for the specified channel and weighting

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels;

weighting: 0 = Flat, 1 = A, 2 = B, 3 = C

power = pointer to variable to receive the total power value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTotalPowerSpan( long channel_ext, long weighting, float startHz, float stopHz, float *power )

指定したチャンネルの指定周波数スパン中のトータルパワーを求めます。ウェイティングの指定も可能です

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                  weighting: 0 = Flat, 1 = A, 2 = B, 3 = C

                  startHz = span start frequency; stopHz = span stop frequency;

                  power = pointer to variable to receive the total power

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

 

Distortion Readings（ひずみ）

 

GetTHD( long channel_ext, float *thd )

指定したチャンネルの全スパンのTHDを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 thd = pointer to variable to receive the THD value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTHDSpan( long channel_ext, float startHz, float stopHz, float *thd )

指定したチャンネルと周波数スパンのTHDを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = span start frequency; stopHz = span stop frequency;

                 thd = pointer to variable to receive the THD value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTHD_N( long channel_ext, float *thd_n )

指定したチャンネルの全スパンのTHD+Nを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 thd_n = pointer to variable to receive the THD+N value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTHD_NSpan( long channel_ext, float startHz, float stopHz, float *thd_n )

指定したチャンネルと周波数スパンのTHD+Nを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = span start frequency; stopHz = span stop frequency;

                 thd_n = pointer to variable to receive the THD+N value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetIMD( long channel_ext, float *imd )

指定したチャンネルの全スパンのIMDを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 imd = pointer to variable to receive the IMD value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSNR( long channel_ext, float *snr )

指定したチャンネルの全スパンのSNRを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 snr = pointer to variable to receive the SNR value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSNRSpan( long channel_ext, float startHz, float stopHz, float *snr )

指定したチャンネルと周波数スパンのSNRを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = span start frequency; stopHz = span stop frequency;

                 snr = pointer to variable to receive the SNR value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSINAD( long channel_ext, float *sinad )

指定したチャンネルの全スパンのSINADを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 sinad = pointer to variable to receive the SINAD value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSINADSpan( long channel_ext, float startHz, float stopHz, float *sinad )

指定したチャンネルと周波数スパンのSINADを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = span start frequency; stopHz = span stop frequency;

                 sinad = pointer to variable to receive the SINAD value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

    ▲


Marker Readings（マーカ）

 

GetMarkerFrequency( long channel_ext, long marker, float *freq )

指定したマーカの周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 marker = 1 - 8;

                 freq = pointer to variable to receive the frequency value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetMarkerAmplitude( long channel_ext, long marker, float *amplitude )

指定したマーカのアンプリチュードを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 marker = 1 - 8;

                 amplitude = pointer to variable to receive the amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

 

Conversion Operations（変換操作）

 

ConvertTimeToSample( long channel, float time_seconds, unsigned long *sample )

指定したチャンネルの秒をサンプルポジションに変換します

Parameters: channel_ext = 0 - 15; time_seconds = time value to convert

                 sample = pointer to variable to receive the sample position

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

ConvertSampleToTime( long channel, unsigned long sample, float *time_seconds )

指定したチャンネルのサンプルポジションを秒に変換します

Parameters: channel_ext = 0 - 15; sample = sample position to convert

                 time_seconds = pointer to variable to receive the time in seconds

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

 

Time Series Data（タイムシリーズ）

 

GetTimeSeriesValueFromTime( long channel, float time_seconds, float *value )

指定した時間のタイムシリーズアンプリチュードを求めます

Parameters: channel_ext = 0 - 15; time_seconds = file position time in seconds

                 value = pointer to variable to receive the time series amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTimeSeriesValueFromSample( long channel, unsigned long sample, float *value )

指定したサンプルポジションのタイムシリーズ値を求めます

Parameters: channel_ext = 0 - 15; sample = file position in samples

                 value = pointer to variable to receive the time series amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetMaxTimeSeriesValueInSegment( long channel, unsigned long startSample, unsigned long stopSample, float *value )

指定した時間レンジの最大タイムシリーズ値を求めます

Parameters: channel_ext = 0 - 15; 

                 startSample = time segment start position in samples;

                 stopSample = time segment stop position in samples;

                 value = pointer to variable to receive the maximum time series amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetMinTimeSeriesValueInSegment( long channel, unsigned long startSample, unsigned long stopSample, float *value )

指定した時間レンジの最小タイムシリーズ値を求めます

Parameters: channel_ext = 0 - 15; 

                 startSample = time segment start position in samples;

                 stopSample = time segment stop position in samples;

                 value = pointer to variable to receive the minimum time series amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTimeSeriesFromFile(  long channel, SAFEARRAY __RPC_FAR * __RPC_FAR *psaTimes, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルのタイムシリーズデータ列を求めます

Parameters: channel_ext = 0 - 15;

                 psaTimes = pointer to array of time values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTimeSeriesFromFileSegmentSample(  long channel, unsigned long startSample, unsigned long stopSample, SAFEARRAY __RPC_FAR * __RPC_FAR *psaTimes, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルとサンプルレンジのタイムシリーズデータ列を求めます

Parameters: channel_ext = 0 - 15;

                 startSample = start sample of time series segment;

                 stopSample = stop sample of time series segment;

                 psTimes = pointer to array of time values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetTimeSeriesFromFileSegmentTime(  long channel, float startSecs, float stopSecs, SAFEARRAY __RPC_FAR * __RPC_FAR *psaTimes, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルと時間レンジのタイムシリーズデータ列を求めます

Parameters: channel_ext = 0 - 15;

                 startSecs = start time of time series segment;

                 stopSecs = stop time of time series segment;

                 psaTimes = pointer to array of time values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter


   GetMaxValueInTriggerSeries( long channel, float *value )
     トリガサンプルのブロック内の最大time series値を取得します。 トリガブロックの長さは、現在のFFTサイズと同じです
     Parameters: channel: 0 = Left, 1 = Right
                      value = pointer to variable to receive the maximum amplitude value
     Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

   GetMinValueInTriggerSeries( long channel, float *value )
     トリガサンプルのブロック内の最大time series値を取得します。 トリガブロックの長さは、現在のFFTサイズと同じです
     Parameters: channel: 0 = Left, 1 = Right
                      value = pointer to variable to receive the minimum amplitude value
     Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

   GetTriggerTimeSeries( long channel, SAFEARRAY __RPC_FAR * __RPC_FAR *psaTimes, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData )
     トリガサンプルのブロックを含むtime seriesデータの配列を取得します。 トリガブロックの長さは、現在のFFTサイズと同じです
     Parameters: channel: 0 = Left, 1 = Right
                      psaTimes = pointer to array of time values
                      psaData = pointer to array of amplitude values
     Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter


   ▲

 

Spectral Data（スペクトラル）

 

GetSpectrumMinFrequency( long channel_ext, float *freq )

指定したチャンネルのスペクトラルデータの最小周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 freq = pointer to variable to receive the frequency value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSpectrumMaxFrequency( long channel_ext, float *freq )

指定したチャンネルのスペクトラルデータの最大周波数を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 freq = pointer to variable to receive the frequency value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSpectrumValue( long channel_ext, float freqHz, float *value )

指定したチャンネルと周波数の、スペクトラルデータのアンプリチュードを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 freqHz = frequency to read the amplitude

                 value = pointer to variable to receive the amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSpectrum( long channel_ext,SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルのスペクトラルデータ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetSpectrumInSpan( long channel_ext, float startHz, float stopHz, SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルと周波数レンジのスペクトラルデータ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = start frequency of selected span;

                 stopHz = stop frequency of selected span;

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakHoldSpectrumValue( long channel_ext, float freqHz, float *value )

指定したチャンネルと周波数の、スペクトラルデータのピークアンプリチュードを求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 freqHz = frequency to read the amplitude

                 value = pointer to variable to receive the amplitude value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakHoldSpectrum( long channel_ext,SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルのピークホールドスペクトラルデータ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPeakHoldSpectrumInSpan( long channel_ext, float startHz, float stopHz, SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルと周波数レンジのピークホールドスペクトラルデータ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = start frequency of selected span;

                 stopHz = stop frequency of selected span;

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of amplitude values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter



    GetComplexSpectrum(  long channel_ext,SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR             *psaDataR, SAFEARRAY __RPC_FAR * __RPC_FAR *psaDataI ) 
       指定されたチャンネルのcomplexスペクトルデータの配列を取得します
       Parameters: channel_ext: 0 = Left, 1 = Right, 2 = Composite, 3 = Coherence.
                      psaFrequencies = pointer to array of frequency values
                      psaDataR = pointer to array of real component of complex values
                      psaDataI = pointer to array of imaginary component of complex values
       Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter
       Note: コンポジットチャネル＝デュアルチャネル動作（L&R平均、トランスファーまたはクロススペクトル）

    GetComplexSpectrumInSpan(  long channel_ext, float startHz, float stopHz, SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies,                        SAFEARRAY __RPC_FAR * __RPC_FAR *psaDataR,  SAFEARRAY __RPC_FAR * __RPC_FAR *psaDataI) 
       指定されたチャンネルのcomplexスペクトルデータの配列を取得します
        Parameters: channel_ext: 0 = Left, 1 = Right, 2 = Composite, 3 = Coherence.
                      startHz = start frequency of selected span;
                      stopHz = stop frequency of selected span;
                      psaFrequencies = pointer to array of frequency values
                      psaDataR = pointer to array of real component of complex values
                      psaDataI = pointer to array of imaginary component of complex values
       Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter
       Note: コンポジットチャネル＝デュアルチャネル動作（L&R平均、トランスファーまたはクロススペクトル）

 

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Phase Data（位相）

 

GetPhaseValue( long channel_ext, float freqHz, float *value )

指定したチャンネルと周波数の位相を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 freqHz = frequency to read the phase

                 value = pointer to variable to receive the phase value

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPhase( long channel_ext,SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルの位相データ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of phase values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

GetPhaseInSpan( long channel_ext, float startHz, float stopHz, SAFEARRAY __RPC_FAR * __RPC_FAR *psaFrequencies, SAFEARRAY __RPC_FAR * __RPC_FAR *psaData ) 

指定したチャンネルと周波数レンジの位相データ列を求めます

Parameters: channel_ext = 0 - 15 for main channels, 16 - 31 for composite channels; 

                 startHz = start frequency of selected span;

                 stopHz = stop frequency of selected span;

                 psaFrequencies = pointer to array of frequency values

                 psaData = pointer to array of phase values

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

 

 

Leq Data（Leq）

 

GetLeqValues( long channel, float *LeqT, float *Leq, float *Lsel, float *Lpk, float *Lmax, float *Lmin, float *L10, float* L50, float *L90 )

指定したチャンネルのLeq (Equivalent Noise Level)を求めます

Parameters: channel_ext = 0 - 15 

LeqT = pointer to the equivalent noise level converted to the user specified "reference time period".

Leq = pointer to the equivalent noise level for the selected time segment.  

Lsel = pointer to the equivalent noise level converted to a 1 second period. 

Lpk = pointer to the peak level for the selected time segment.  No averaging is used for this parameter.

Lmax = pointer to the maximum level for the selected data.  

Lmin = pointer to the minimum level for the selected data.  

L10 = pointer to the level exceeded 10% of the time.  

L50 = pointer to the level exceeded 50% of the time.  

L90 = pointer to the level exceeded 90% of the time.  

Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter



Misc

　　GetDelayFinderValue( float *value )
　　   Delay Finder ユーティリティの現在の値を取得します (ユーティリティは開いている必要があります)
 　　　 Parameters: value = pointer to the delay value
 　　   Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter

    GetMetadata( BSTR* metadata )
       現在の wafe ファイルからメタデータテキストを取得します。この関数を実行するには、WAVEファイルを開いていなければなりません
       Parameters: metadata - up to 2000 characters max of ascii text
       Return: S_OK = success, E_FAIL = unsuccessful, E_INVALIDARG = invalid parameter


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