Remarks
Starts a new recording session from an input sound file in RAW format.
A successful call to this method will fire the RecordingStarted event followed by a number of RecordingPerc events and finally by the RecordingStopped event.
For details about recording from files see the How to record from files, memory or clipboard section.
Syntax
[Visual Basic]
Public Function StartFromFileRaw (
strOutputPath as string,
strInputPath as string,
nEncodeMode as enumRAWEncodeModes,
bIsBigEndian as Boolean,
nFrequency as Int32,
nChannels as Int32
) as enumErrorCodes
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[C#]
public enumErrorCodes StartFromFileRaw (
string strOutputPath,
string strInputPath,
enumRAWEncodeModes nEncodeMode,
bool bIsBigEndian,
Int32 nFrequency,
Int32 nChannels
);
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[C++]
public: enumErrorCodes StartFromFileRaw (
string strOutputPath,
string strInputPath,
enumRAWEncodeModes nEncodeMode,
bool bIsBigEndian,
Int32 nFrequency,
Int32 nChannels
);
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Parameter
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Description
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strOutputPath
|
String representing the absolute pathname of the output file that will contain the recorded data. If this pathname should contain invalid characters, they would be automatically changed into an underscore '_' character.
If the string is left empty, the recording session will be performed in memory.
|
strInputPath
|
String representing the absolute pathname of the input file.
|
nEncodeMode
|
Encode mode used to encode the RAW file.
Supported values are the following:
Mnemonic constant
|
Value
|
Meaning
|
RAW_ENCODE_PCM_U8
|
0
|
RAW PCM 8 bits Unsigned
|
RAW_ENCODE_PCM_S8
|
1
|
RAW PCM 8 bits Signed
|
RAW_ENCODE_PCM_S16
|
2
|
RAW PCM 16 bits Signed
|
RAW_ENCODE_PCM_S24
|
3
|
RAW PCM 24 bits Signed
|
RAW_ENCODE_PCM_S32
|
4
|
RAW PCM 32 bits Signed
|
RAW_ENCODE_FLOAT32
|
5
|
RAW 32 bits floating point
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RAW_ENCODE_G711_ULAW
|
6
|
RAW G711 U-LAW
|
RAW_ENCODE_G711_ALAW
|
7
|
RAW G711 A-LAW
|
RAW_ENCODE_GSM_610
|
8
|
RAW GSM 6.10
|
RAW_ENCODE_DIALOGIC_VOX
|
9
|
RAW Dialogic ADPCM VOX
|
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bIsBigEndian
|
Boolean flag that specifies if bits order inside the RAW file are little-endian or big-endian
Supported values are the following:
Mnemonic Value
|
Meaning
|
false
|
The RAW file is encoded using little-endian
|
true
|
The RAW file is encoded using big-endian
|
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nFrequency
|
Sample rate of the RAW file (e.g. 44100)
|
nChannels
|
Number of channels of the RAW file: 1 for Mono or 2 for Stereo
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Return value
Value
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Meaning
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Negative value
|
An error occurred. Check the LastError property value in order to see the last error.
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enumErrorCodes.ERR_NOERROR (0)
|
The method call was successful.
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