fftwf_plan plan=fftwf_plan_dft_r2c_1d(N,(float*)in,out,FFTW_ESTIMATE); // 进行频域分析 for(inti=0;i<N;++i){ in[i][0]=;// 将音频数据填充到输入数组的实部 in[i][1]=0.0;// 输入数组的虚部置零 } fftwf_execute(plan);// 执行离散傅里叶变换 // 处理频域结果 // 清理资源 fftw...
fftw_destroy_plan(plan); fftw_free(in); fftw_free(out); return0; } 此代码使用了fftw3库进行 FFT 变换。首先,通过readWavFile函数从 WAV 文件中读取音频数据。然后,创建输入数组和输出数组,并为其分配内存。接下来,使用fftw_plan_dft_r2c_1d函数创建一个 FFT 变换计划。最后,执行变换并输出频谱结果。
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DFFTW_PLAN_DFT_2D@28, dfftw_plan_dft_2d_, dfftw_plan_dft__. The number after @ various for the different subroutines.As far as I understood, the defaults for ifort on Windows is that no underscore is appended and names are in upercase. Hence the linker was able to ...
void X(execute_dft_c2r) (X(plan) p, R *ri, R *ii, R *out) void X(execute_dft_c2r)(X(plan) p, R *ri, R *ii, R *out) { plan_rdft2 *pln = (plan_rdft2 *) p->pln; pln->apply((plan *) pln, out, ri, ii); 2 changes: 1 addition & 1 deletion 2 api/execute-df...
fft_ = fftwf_plan_dft_r2c_1d(HwSize_,hn_,Hw_,FFTW_MEASURE); hanning();//rectangular();} 开发者ID:marianojb7,项目名称:Convolucion,代码行数:31,代码来源:equalizer.cpp 示例3: fprintf ▲点赞 5▼ /* --- * IFFT for floating complex number data * Comparation with Matlab Command : * ...
示例2: dft_plan_free ▲点赞 7▼ voiddft_plan_free(dft_plan_t*plan){if(!plan)return;if(!plan->size)return;if(plan->in)fftwf_free(plan->in);if(plan->out)fftwf_free(plan->out);if(plan->p) fftwf_destroy_plan(plan->p); ...
DFFTW_PLAN_DFT_2D@28, dfftw_plan_dft_2d_, dfftw_plan_dft__. The number after @ various for the different subroutines.As far as I understood, the defaults for ifort on Windows is that no underscore is appended and names are in upercase. Hence the linker was able to ...
plan=fftw_plan_dft_r2c_1d(n,in,out,FFTW_ESTIMATE); // 填充输入数组(将音频数据转换为double类型) for(inti=0;i<n;++i){ in[i]=static_cast<double>(audioData[i]); } // 执行FFT变换 fftw_execute(plan); // 输出频域信息 for(inti=0;i<n/2+1;++i){ ...
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