예전에 사놓은 콘덴서 마이크 모듈(?)을 어떻게 연결해야 하나 몰라서 썩혀두고 있던
정체불명의 녀석인데(일단 SKT444 라는 품명이라고 하던데 데이터시트가 없다 -_-)
아무튼, 극성은 아래와 같이 잰다고 한다.
1. MIC의 깡통부분과 극성 부분을 저항으로 측정하여 저항이 낮은쪽이 GND
저항이 상대적으로 낮은쪽(혹은 저항이 무한대가 아닌쪽)이 음성신호가 나가는 쪽이다.
아래의 제품에서는 깡통부분으로 이어지는 선이 보이고, 이녀석이 GROUND 부분이다.
참고로 콘덴서 마이크는 전원이 입력되어야 작동을 한다.(고 한다.)
2. 일반 3.5파이 이어폰을 싹둑! 해서 보자면
꼽는곳을 앞쪽이라고 가정하고,
가장 뒷쪽이 GROUND, 가장 앞쪽이 LEFT 이다.(기존의 모노 이어폰은 3극이 아니라 2극인데 LEFT로 연결됨)
그리고 가운데는 RIGHT인데 콘덴서 마이크의 경우 이 극성을 통해 전원을 공급해준다.
그리고 사운드카드에서 증폭을 하던 안하던, 일단 MIC 쪽으로는 1V가 공급되는 것으로 보인다.
(10V DC에 연결했음 읽는법은 셀프~)
2개의 컴퓨터가 있어서 따로따로 측정해보니,
메인보드 별로 MIC에 인가되는 전원이 다른것 같다. 다른 녀석은 2V가 인가된다.
컴파일러가 ATI 쪽만 인식하도록 되어있는지, nVidia의 GPU를 제대로 활용하지는 못한다.
아니면 예제 프로그램들이 openCL을 이용하기는 하지만, nVidia의 openCL과는 달라서 그럴려나?
Number of platforms: 1 Platform Profile: FULL_PROFILE Platform Version: OpenCL 1.1 ATI-Stream-v2.2 (302) Platform Name: ATI Stream Platform Vendor: Advanced Micro Devices, Inc. Platform Extensions: cl_khr_icd cl_amd_event_callback cl_khr_d3d10_sharing
Platform Name: ATI Stream Number of devices: 2 Device Type: CL_DEVICE_TYPE_CPU Device ID: 4098 Max compute units: 4 Max work items dimensions: 3 Max work items[0]: 1024 Max work items[1]: 1024 Max work items[2]: 1024 Max work group size: 1024 Preferred vector width char: 16 Preferred vector width short: 8 Preferred vector width int: 4 Preferred vector width long: 2 Preferred vector width float: 4 Preferred vector width double: 0 Max clock frequency: 2393Mhz Address bits: 32 Max memory allocation: 536870912 Image support: No Max size of kernel argument: 4096 Alignment (bits) of base address: 1024 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: Yes Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: No Cache type: Read/Write Cache line size: 64 Cache size: 32768 Global memory size: 1073741824 Constant buffer size: 65536 Max number of constant args: 8 Local memory type: Global Local memory size: 32768 Profiling timer resolution: 427 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: Yes Queue properties: Out-of-Order: No Profiling : Yes Platform ID: 00C3D40C Name: Intel(R) Core(TM) i5 CPU M 450 @ 2.40GHz Vendor: GenuineIntel Driver version: 2.0 Profile: FULL_PROFILE Version: OpenCL 1.1 ATI-Stream-v2.2 (302) Extensions: cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_printf cl_khr_d3d10_sharing Device Type: CL_DEVICE_TYPE_GPU Device ID: 4098 Max compute units: 2 Max work items dimensions: 3 Max work items[0]: 128 Max work items[1]: 128 Max work items[2]: 128 Max work group size: 128 Preferred vector width char: 16 Preferred vector width short: 8 Preferred vector width int: 4 Preferred vector width long: 2 Preferred vector width float: 4 Preferred vector width double: 0 Max clock frequency: 720Mhz Address bits: 32 Max memory allocation: 134217728 Image support: No Max size of kernel argument: 1024 Alignment (bits) of base address: 32768 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: No Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: Yes Cache type: None Cache line size: 0 Cache size: 0 Global memory size: 268435456 Constant buffer size: 65536 Max number of constant args: 8 Local memory type: Global Local memory size: 16384 Profiling timer resolution: 1 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: No Queue properties: Out-of-Order: No Profiling : Yes Platform ID: 00C3D40C Name: ATI RV710 Vendor: Advanced Micro Devices, Inc. Driver version: CAL 1.4.838 Profile: FULL_PROFILE Version: OpenCL 1.0 ATI-Stream-v2.2 (302) Extensions: cl_khr_icd cl_khr_gl_sharing cl_amd_device_attribute_query cl_khr_d3d10_sharing
Passed!
Number of platforms: 2 Platform Profile: FULL_PROFILE Platform Version: OpenCL 1.0 CUDA 3.2.1 Platform Name: NVIDIA CUDA Platform Vendor: NVIDIA Corporation Platform Extensions: cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_d3d9_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll Platform Profile: FULL_PROFILE Platform Version: OpenCL 1.1 ATI-Stream-v2.2 (302) Platform Name: ATI Stream Platform Vendor: Advanced Micro Devices, Inc. Platform Extensions: cl_khr_icd cl_amd_event_callback
Platform Name: NVIDIA CUDA Number of devices: 2 Device Type: CL_DEVICE_TYPE_GPU Device ID: 4318 Max compute units: 4 Max work items dimensions: 3 Max work items[0]: 512 Max work items[1]: 512 Max work items[2]: 64 Max work group size: 512 Preferred vector width char: 1 Preferred vector width short: 1 Preferred vector width int: 1 Preferred vector width long: 1 Preferred vector width float: 1 Preferred vector width double: 0 Max clock frequency: 1350Mhz Address bits: 5347096844566560 Max memory allocation: 134217728 Image support: Yes Max number of images read arguments: 128 Max number of images write arguments: 8 Max image 2D width: 4096 Max image 2D height: 32768 Max image 3D width: 2048 Max image 3D height: 2048 Max image 3D depth: 2048 Max samplers within kernel: 16 Max size of kernel argument: 4352 Alignment (bits) of base address: 2048 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: No Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: Yes Cache type: None Cache line size: 0 Cache size: 0 Global memory size: 268107776 Constant buffer size: 65536 Max number of constant args: 9 Local memory type: Scratchpad Local memory size: 16384 Profiling timer resolution: 1000 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: No Queue properties: Out-of-Order: Yes Profiling : Yes Platform ID: 003E8750 Name: GeForce 8600 GT Vendor: NVIDIA Corporation Driver version: 260.99 Profile: FULL_PROFILE Version: OpenCL 1.0 CUDA Extensions: cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_d3d9_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics Device Type: CL_DEVICE_TYPE_GPU Device ID: 4318 Max compute units: 4 Max work items dimensions: 3 Max work items[0]: 512 Max work items[1]: 512 Max work items[2]: 64 Max work group size: 512 Preferred vector width char: 1 Preferred vector width short: 1 Preferred vector width int: 1 Preferred vector width long: 1 Preferred vector width float: 1 Preferred vector width double: 0 Max clock frequency: 1188Mhz Address bits: 5347096844566560 Max memory allocation: 134217728 Image support: Yes Max number of images read arguments: 128 Max number of images write arguments: 8 Max image 2D width: 4096 Max image 2D height: 32768 Max image 3D width: 2048 Max image 3D height: 2048 Max image 3D depth: 2048 Max samplers within kernel: 16 Max size of kernel argument: 4352 Alignment (bits) of base address: 2048 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: No Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: Yes Cache type: None Cache line size: 0 Cache size: 0 Global memory size: 268107776 Constant buffer size: 65536 Max number of constant args: 9 Local memory type: Scratchpad Local memory size: 16384 Profiling timer resolution: 1000 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: No Queue properties: Out-of-Order: Yes Profiling : Yes Platform ID: 003E8750 Name: GeForce 8600 GT Vendor: NVIDIA Corporation Driver version: 260.99 Profile: FULL_PROFILE Version: OpenCL 1.0 CUDA Extensions: cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_d3d9_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics
Error : Bytes mismatch! Error : glSharing mismatch! Error : images mismatch! Error : printf mismatch! Error : deviceAttributeQuery mismatch! Failed! Platform Name: ATI Stream Number of devices: 1 Device Type: CL_DEVICE_TYPE_CPU Device ID: 4098 Max compute units: 2 Max work items dimensions: 3 Max work items[0]: 1024 Max work items[1]: 1024 Max work items[2]: 1024 Max work group size: 1024 Preferred vector width char: 16 Preferred vector width short: 8 Preferred vector width int: 4 Preferred vector width long: 2 Preferred vector width float: 4 Preferred vector width double: 0 Max clock frequency: 2211Mhz Address bits: 32 Max memory allocation: 536870912 Image support: No Max size of kernel argument: 4096 Alignment (bits) of base address: 1024 Minimum alignment (bytes) for any datatype: 128 Single precision floating point capability Denorms: Yes Quiet NaNs: Yes Round to nearest even: Yes Round to zero: Yes Round to +ve and infinity: Yes IEEE754-2008 fused multiply-add: No Cache type: Read/Write Cache line size: 64 Cache size: 65536 Global memory size: 1073741824 Constant buffer size: 65536 Max number of constant args: 8 Local memory type: Global Local memory size: 32768 Profiling timer resolution: 279 Device endianess: Little Available: Yes Compiler available: Yes Execution capabilities: Execute OpenCL kernels: Yes Execute native function: Yes Queue properties: Out-of-Order: No Profiling : Yes Platform ID: 01DFD40C Name: AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ Vendor: AuthenticAMD Driver version: 2.0 Profile: FULL_PROFILE Version: OpenCL 1.1 ATI-Stream-v2.2 (302) Extensions: cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store cl_khr_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_printf
IT20051130.doc
ch04_1.ppt
