Displaying 6 results from an estimated 6 matches for "lpc_shift".
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lba_shift
2004 Aug 06
0
[ANNOUNCE] PocketPC Port for speex-1.1.5 with sample code
...def spx_word32_t spx_mem_t;
typedef spx_word16_t spx_coef_t;
typedef spx_word16_t spx_lsp_t;
typedef spx_word32_t spx_sig_t;
#define LPC_SCALING 8192
#define SIG_SCALING 16384
#define LSP_SCALING 8192.
#define GAMMA_SCALING 32768.
#define GAIN_SCALING 64
#define GAIN_SCALING_1 0.015625
#define LPC_SHIFT 13
#define SIG_SHIFT 14
#define VERY_SMALL 0
#ifdef ARM_ASM
#include "fixed_arm.h"
#elif defined (FIXED_DEBUG)
#include "fixed_debug.h"
#else
#include "fixed_generic.h"
#endif
#else
typedef float spx_mem_t;
typedef float spx_coef_t;
typedef float spx_lsp_t...
2007 Aug 06
2
11kbps narrowband on a 24bit DSP
...6 bit accumulator. I see scaling shifts when using 32
bit registers. Can anyone tell me what scaling values like
#define LPC_SCALING 8192
#define SIG_SCALING 16384
#define LSP_SCALING 8192.
#define GAMMA_SCALING 32768.
#define GAIN_SCALING 64
#define GAIN_SCALING_1 0.015625
#define LPC_SHIFT 13
#define LSP_SHIFT 13
#define SIG_SHIFT 14
Would be required for a 24 bit register?
2. I would like to only include only the data tables as required to
support 11kbps narrowband mode. I think they would be the following
signed byte tables
cdbk_nb[640]
cdbk_nb_lo...
2004 Aug 06
2
[ANNOUNCE] PocketPC Port for speex-1.1.5 with sample code
Hi Jean-Marc,
Based on the wonderful Speex project, I've created SpeexOutLoud, essentially a Speex codec port for Windows Mobile 2003 devices.
I've included a sample project intended to show the usage of SpeexOutLoud codec in a Pocket PC application based on .NET Compact Framework.
I'd request you to please go through the attached build, and include it as a contribution to the
2014 Jul 02
2
[PATCH] two patches of doubtful usefulness
...vec.
The patch hides local_lpc_restore_signal_16bit_order8 under
#ifdef FLAC__CPU_PPC / #endif directives.
Pros:
* one branch less
Cons:
* the same as for the 1st patch: the speed increase is probably negligible
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2007 Aug 06
0
11kbps narrowband on a 24bit DSP
...at scaling values like
>
>
>
> #define LPC_SCALING 8192
>
> #define SIG_SCALING 16384
>
> #define LSP_SCALING 8192.
>
> #define GAMMA_SCALING 32768.
>
> #define GAIN_SCALING 64
>
> #define GAIN_SCALING_1 0.015625
>
>
>
> #define LPC_SHIFT 13
>
> #define LSP_SHIFT 13
>
> #define SIG_SHIFT 14
>
>
>
> Would be required for a 24 bit register?
>
>
>
> 2. I would like to only include only the data tables as required to
> support 11kbps narrowband mode. I think they wo...
2005 May 25
3
Speex on TI C6x, Problem with TI C5x Patch
...def spx_word32_t spx_mem_t;
typedef spx_word16_t spx_coef_t;
typedef spx_word16_t spx_lsp_t;
typedef spx_word32_t spx_sig_t;
#define LPC_SCALING 8192
#define SIG_SCALING 16384
#define LSP_SCALING 8192.
#define GAMMA_SCALING 32768.
#define GAIN_SCALING 64
#define GAIN_SCALING_1 0.015625
#define LPC_SHIFT 13
#define SIG_SHIFT 14
#define VERY_SMALL 0
#ifdef ARM5E_ASM
#include "fixed_arm5e.h"
#elif defined (ARM4_ASM)
#include "fixed_arm4.h"
#elif defined (FIXED_DEBUG)
#include "fixed_debug.h"
#elif defined (C55X_ASM)
#include "fixed_c55x.h"
#else
#inclu...