# FMOD\_DSP\_LOG
**URL:** https://qa.fmod.com/t/fmod-dsp-log/13045
**Category:** FMOD Studio
**Created:** [March 17, 2017, 11:37am UTC](https://qa.fmod.com/t/fmod-dsp-log/13045 "2017-03-17T11:37:27Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rory](https://qa.fmod.com/u/rory)
#### Post date: [March 17, 2017, 11:37am UTC](https://qa.fmod.com/t/fmod-dsp-log/13045/1 "2017-03-17T11:37:27Z")
I see that a new logging function has been added to the DSP plugin API. However, I can’t find any mention of it in either the manual or the examples. Could I trouble one of you guys for a simple example of its use? Thanks.
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### Author:  [@mathew](https://qa.fmod.com/u/mathew)
#### Post date: [March 20, 2017, 5:38am UTC](https://qa.fmod.com/t/fmod-dsp-log/13045/2 "2017-03-20T05:38:31Z")
From fmod\_dsp.h you have:
`typedef void (F_CALL *FMOD_DSP_LOG_FUNC)(FMOD_DEBUG_FLAGS level, const char *file, int line, const char *function, const char *string, ...);`
and you can access it easily with the helper macro at the bottom of fmod\_dsp.h
`#define FMOD_DSP_LOG(_state, _level, _location, _format, ...)`
- \_state is the FMOD\_DSP\_STATE given to all DSP callbacks
- \_level is the FMOD\_DEBUG\_FLAGS log level, i.e. FMOD\_DEBUG\_LEVEL\_ERROR, FMOD\_DEBUG\_LEVEL\_WARNING or FMOD\_DEBUG\_LEVEL\_LOG
- \_location is just a string used to identify where you are in your code, often I used the function name for this.
- \_format is a printf format string, and the following var\_args are the printf parameters
Hope that helps.
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### Author:  [@rory](https://qa.fmod.com/u/rory)
#### Post date: [March 20, 2017, 9:38am UTC](https://qa.fmod.com/t/fmod-dsp-log/13045/3 "2017-03-20T09:38:07Z")
> [@](#):
>
> From fmod\_dsp.h you have:
>
> `typedef void (F_CALL *FMOD_DSP_LOG_FUNC)(FMOD_DEBUG_FLAGS level, const char *file, int line, const char *function, const char *string, ...);`
>
> and you can access it easily with the helper macro at the bottom of fmod\_dsp.h
>
> `#define FMOD_DSP_LOG(_state, _level, _location, _format, ...)`
>
> - \_state is the FMOD\_DSP\_STATE given to all DSP callbacks
> - \_level is the FMOD\_DEBUG\_FLAGS log level, i.e. FMOD\_DEBUG\_LEVEL\_ERROR, FMOD\_DEBUG\_LEVEL\_WARNING or FMOD\_DEBUG\_LEVEL\_LOG
> - \_location is just a string used to identify where you are in your code, often I used the function name for this.
> - \_format is a printf format string, and the following var\_args are the printf parameters
>
> Hope that helps.
Thanks, just what I was looking for. I’m surprised VS didn’t find that method when I searched through the API source. Thanks again.