Package org.xiph.speex
Class SbCodec
- java.lang.Object
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- org.xiph.speex.NbCodec
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- org.xiph.speex.SbCodec
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Field Summary
Fields Modifier and Type Field Description protected float
foldingGain
protected int
fullFrameSize
protected float[]
g0_mem
protected float[]
g1_mem
protected float[]
high
static int
QMF_ORDER
Quadratic Mirror Filter Orderstatic int[]
SB_FRAME_SIZE
The Sideband Frame Size gives the size in bits of a Sideband frame for a given sideband submode.static int
SB_SUBMODE_BITS
The Sideband Submodes Bits gives the number bits used to encode the Sideband Submodestatic int
SB_SUBMODES
The Sideband Submodes gives the number of submodes possible for the Sideband codec.protected float[]
x0d
protected float[]
y0
protected float[]
y1
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Fields inherited from class org.xiph.speex.NbCodec
awk1, awk2, awk3, bufSize, dtx_enabled, exc_gain_quant_scal1, exc_gain_quant_scal3, excBuf, excIdx, filters, first, frameSize, frmBuf, frmIdx, gamma1, gamma2, innov, interp_qlpc, interp_qlsp, lag_factor, lpc, lpc_floor, lpcSize, m_lsp, max_pitch, mem_sp, min_pitch, NB_FRAME_SIZE, NB_SUBMODE_BITS, NB_SUBMODES, nbSubframes, old_qlsp, pi_gain, pre_mem, preemph, qlsp, subframeSize, submodeID, submodes, VERY_SMALL, voc_m1, voc_m2, voc_mean, voc_offset, windowSize
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Fields inherited from interface org.xiph.speex.Codebook
cdbk_nb, cdbk_nb_high1, cdbk_nb_high2, cdbk_nb_low1, cdbk_nb_low2, exc_10_16_table, exc_10_32_table, exc_20_32_table, exc_5_256_table, exc_5_64_table, exc_8_128_table, gain_cdbk_lbr, gain_cdbk_nb, h0, h1, hexc_10_32_table, hexc_table, high_lsp_cdbk, high_lsp_cdbk2, NB_CDBK_SIZE, NB_CDBK_SIZE_HIGH1, NB_CDBK_SIZE_HIGH2, NB_CDBK_SIZE_LOW1, NB_CDBK_SIZE_LOW2
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Constructor Summary
Constructors Constructor Description SbCodec()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected static SubMode[]
buildUwbSubModes()
Build ultra-wideband submodes.protected static SubMode[]
buildWbSubModes()
Build wideband submodes.boolean
getDtx()
Returns whether or not we are using Discontinuous Transmission encoding.float[]
getExc()
Returns the excitation array.int
getFrameSize()
Returns the size of a frame (ex: 160 samples for a narrowband frame, 320 for wideband and 640 for ultra-wideband).float[]
getInnov()
Returns the innovation array.protected void
init(int frameSize, int subframeSize, int lpcSize, int bufSize, float foldingGain)
Initialisationvoid
uwbinit()
Ultra-wideband initialisationvoid
wbinit()
Wideband initialisation
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Field Detail
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SB_FRAME_SIZE
public static final int[] SB_FRAME_SIZE
The Sideband Frame Size gives the size in bits of a Sideband frame for a given sideband submode.
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SB_SUBMODES
public static final int SB_SUBMODES
The Sideband Submodes gives the number of submodes possible for the Sideband codec.- See Also:
- Constant Field Values
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SB_SUBMODE_BITS
public static final int SB_SUBMODE_BITS
The Sideband Submodes Bits gives the number bits used to encode the Sideband Submode- See Also:
- Constant Field Values
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QMF_ORDER
public static final int QMF_ORDER
Quadratic Mirror Filter Order- See Also:
- Constant Field Values
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fullFrameSize
protected int fullFrameSize
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foldingGain
protected float foldingGain
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high
protected float[] high
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y0
protected float[] y0
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y1
protected float[] y1
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x0d
protected float[] x0d
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g0_mem
protected float[] g0_mem
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g1_mem
protected float[] g1_mem
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Method Detail
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wbinit
public void wbinit()
Wideband initialisation
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uwbinit
public void uwbinit()
Ultra-wideband initialisation
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init
protected void init(int frameSize, int subframeSize, int lpcSize, int bufSize, float foldingGain)
Initialisation- Parameters:
frameSize
-subframeSize
-lpcSize
-bufSize
-foldingGain
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buildWbSubModes
protected static SubMode[] buildWbSubModes()
Build wideband submodes.- Returns:
- the wideband submodes.
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buildUwbSubModes
protected static SubMode[] buildUwbSubModes()
Build ultra-wideband submodes.- Returns:
- the ultra-wideband submodes.
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getFrameSize
public int getFrameSize()
Returns the size of a frame (ex: 160 samples for a narrowband frame, 320 for wideband and 640 for ultra-wideband).- Overrides:
getFrameSize
in classNbCodec
- Returns:
- the size of a frame (number of audio samples in a frame).
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getDtx
public boolean getDtx()
Returns whether or not we are using Discontinuous Transmission encoding.
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getExc
public float[] getExc()
Returns the excitation array.
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