plan_gravx_inverse = fftwf_plan_dft_c2r_2d(yblock2, xblock2, th_gravxbigt, th_gravxbig, FFTW_MEASURE); plan_gravy_inverse = fftwf_plan_dft_c2r_2d(yblock2, xblock2, th_gravybigt, th_gravybig, FFTW_MEASURE);//(XRES/CELL)*(YRES/CELL)*4 is size of data array, scaling needed...
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。
plan-dft-r2c-1d.c plan-dft-r2c-2d.c plan-dft-r2c-3d.c plan-dft-r2c.c plan-dft.c plan-guru-dft-c2r.c plan-guru-dft-r2c.c plan-guru-dft.c plan-guru-r2r.c plan-many-dft-c2r.c plan-many-dft-r2c.c plan-many-dft.c plan-many-r2r.c plan-r2r-1d.c...
先将t串反转,然后对每一个字母做多项式乘法。。。全加起来就是t串匹配的最大字母数。。。 #include <iostream> #include <queue> #include <stack> #include #include <set> #include <bitset> #include <cstdio> #include <algorithm> #include
plan-guru64-split-dft-r2c.c plan-guru64-split-dft.c plan-many-dft-c2r.c plan-many-dft-r2c.c plan-many-dft.c plan-many-r2r.c plan-r2r-1d.c plan-r2r-2d.c plan-r2r-3d.c plan-r2r.c print-plan.c rdft2-pad.c the-planner.c ...
intsrslte_dft_replan_guru_c(srslte_dft_plan_t*plan,constintnew_dft_points,cf_t*in_buffer,cf_t*out_buffer,intistride,intostride,inthow_many,intidist,intodist){intsign = (plan->forward) ? FFTW_FORWARD : FFTW_BACKWARD;constfftwf_iodim iodim = {new_dft_points, istride, ostride};cons...
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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Issues Plan and track work Code Review Manage code changes Discussions Collaborate outside of code Code Search Find more, search less Explore All features Documentation GitHub Skills Blog Solutions By company size Enterprises Small and medium teams Startups Nonprofits By use case DevSecOps...