主题：手机声腔的模拟软件 -MICRO-CAP大家知道吗？

我所知道的声学模拟软件都是针对大口径的SPEAKER,有没有对小口径SPEAKER和所装配的腔体的模拟呢? 当然不是简单的出音孔大小,前后音腔的大小模拟的那么简单.  比如出音孔的形状,出音孔的位置,SPEAKER侧面出音对声音的影响,还有就是MIC声孔的位置,形状,通道等等对声音响应,响度,失真的影响

PHILIPS就是使用这个软件，但是只对频响和响度有仿真，其实这是用电力声的类比模拟出来的响应曲线和响度值。

熟悉这个软件的人可以多多交流！

有这么好的软件?

太好了!

有呀！ansys就可以，就是使用比较麻烦。

ANSYS+SYSNOISE

这些都挺贵的啊!

最好有免费的,

而且比较复杂,不易操作.

我也正需要這種软件～！！

[QUOTE]

贴一张micro-cap仿真曲线给大家看看，希望能起到抛砖引玉的作用

 

不好意思啊，不知道怎样才能贴上图

稍等

Micro-Cap 7.0
Electronic Circuit Analysis Program

Copyright 1982-2001 by Spectrum Software
1021 South Wolfe Road
Sunnyvale, CA 94086
Phone: (408) 738-4387
FAX: (408) 738-4702
Internet:www.spectrum-soft.com
Support:support@spectrum-soft.com
Sales:sales@spectrum-soft.com

现在8.0也出来了!

7.16 7.17网上可以下载,是电路分析软件.

Spectrum Software has released Micro-Cap 8, the eighth generation of our SPICE circuit simulator.

Prices - U.S Domestic Prices Only
Micro-Cap 8	$3995
Micro-Cap 8 LAN Version ( Per Seat / Two Seat Minimum )	$3995
Extra manual sets	$50

Domestic shipping by UPS Surface, (7-10 working days)	$10
Domestic shipping by UPS Blue, (2 working days)	$35
Domestic shipping by UPS Red, (1 working day)	$60
International shipping by UPS Air, (3 working days)	$125
VISA / MasterCharge credit card surcharge	3%
American Express credit card surcharge	4%
C.O.D. charge	$8.50

• Integrated schematic editor and simulator.
• An on-line simulator available at a key press. No need to load or shell to another program to perform an analysis.
• SPICE compatible models and simulator.
• Transient analysis - for plotting any time-domain waveform.
• AC analysis - for investigating the small signal behavior.
• DC analysis - for plotting static DC variables.
• Transfer Function analysis - for calculating the DC transfer function.
• Sensitivity analysis - for calculating the DC sensitivity of output expressions to circuit parameters.
• Distortion analysis - for measuring distortion in an output.
• Optimizer - for fine tuning designs.
• Integrated active and passive filter design function.
• IBIS model translator.
• PCB interface to popular packages.
• Native PSpice® compatible digital simulation engine.
• A large device library with over 16000 parts.
• Analog and digital behavioral modeling.
• Schematic waveform probing.
• Waveform plotting - during the run.
• Smith charts / Polar plots.
• Powerful plotting and post-analysis functions.
• Multidimensional parameter stepping.
• 3D plotting.
• Performance functions and plots.
• Monte Carlo analysis.
• Optimizing modeler for creating model parameters from data sheets.
• Advanced MOSFET modeling - BSIM and EKV models.
• Animated devices provide visualization and interaction.
• Lossy transmission lines.
• Jiles-Atherton nonlinear magnetics model.
• GaAsFET models.
• Dynamic DC on-schematic voltage/state, current, power and condition display.
• Dynamic AC on-schematic voltage, current and power display.
• N-Port model.
• Individual device temperatures - for precise analysis of on-chip devices.
• Wide variety of available device models.
• Extensive mathematical operators and variables.

想知道这个软件设置详细的东西，哪位高手帮帮我：

jesse.liu@cellon.com.cn

1.speaker音圈作为电路的负载，音腔和音圈振膜等效成电元件，SPEAKER单体的参数需要输入系统吗？如F0，SPL等

2.测试信号是怎样模拟的？还有仿真嘴和耦合腔的参数是怎样计算进去的？

先说这两个吧。

先看一下等效电路的原理吧:

http://www.nju520.com/bbs/dispbbs.asp?boardID=17&ID=222&page=1

SPK的TS参数等需输入进去,F0 SPL等是计算(仿真)出来的.

仿真嘴和耦合腔的参数作为声负载直接并入等效电路中.

测试信号取20-20K的正弦扫频信号就可.

太难学了

可不可以共享一下啊?

商业软件,哪里能共享?

似乎跟PSPICE差不多,也不是专为电声器件设计的.

没用过,不知使用是否方便,结果是否准确?

网上有下载的!