# Fmod 5 not has the FMOD\_SOFTWARE? can not reverse sound
**URL:** https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477
**Category:** FMOD Engine
**Created:** [May 3, 2016, 9:29am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477 "2016-05-03T09:29:28Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@qq200600](https://qa.fmod.com/u/qq200600)
#### Post date: [May 3, 2016, 9:29am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/1 "2016-05-03T09:29:28Z")
somebody say :
FMOD::Sound objects loaded as FMOD\_SOFTWARE. and Channel::setFrequency as negative frequency , the sound will be reversed.
But in the Fmod5 low api, there is no FMOD\_SOFTWARE enum, what can i do ?
my code:
result = FMOD\_System\_CreateSound(gSystem, fileName, FMOD\_LOOP\_OFF, 0, &gSound);
float freq = 0;
FMOD\_Channel\_GetFrequency(channel, &freq);
FMOD\_Channel\_SetFrequency(channel, -freq);
but nothing happen
please help me, thank you.
---
### Author:  [@brett](https://qa.fmod.com/u/brett)
#### Post date: [May 5, 2016, 12:47am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/2 "2016-05-05T00:47:07Z")
FMOD 5 has no FMOD\_SOFTWARE because all sounds are FMOD\_SOFTWARE in FMOD 5.
The reason nothing happens is you have FMOD\_LOOP\_OFF, and the sound started at position 0, went backwards then ended immediately. You have to start your sound somewhere that it can go backwards from, ie use Channel::setPosition
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### Author:  [@qq200600](https://qa.fmod.com/u/qq200600)
#### Post date: [May 5, 2016, 3:11am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/3 "2016-05-05T03:11:10Z")
> [@](#):
>
> FMOD 5 has no FMOD\_SOFTWARE because all sounds are FMOD\_SOFTWARE in FMOD 5.
>
> The reason nothing happens is you have FMOD\_LOOP\_OFF, and the sound started at position 0, went backwards then ended immediately. You have to start your sound somewhere that it can go backwards from, ie use Channel::setPosition
Thank you very much. I will try the Channel::setPosition
---
### Author:  [@qq200600](https://qa.fmod.com/u/qq200600)
#### Post date: [May 5, 2016, 5:09am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/4 "2016-05-05T05:09:30Z")
result = FMOD\_System\_PlaySound(gSystem, gSound, gMastergroup, true, &channel);
CHECK\_RESULT(result, **LINE** );
```
float freq = 0;
FMOD_Channel_GetFrequency(channel, &freq);
FMOD_Channel_SetFrequency(channel, -freq);
unsigned int length;
result = FMOD_Sound_GetLength(gSound, &length, FMOD_TIMEUNIT_MS);
CHECK_RESULT(result, __LINE__ );
__android_log_print(ANDROID_LOG_ERROR, "FMOD", "%i", length);
result = FMOD_Channel_SetPosition(channel, length, FMOD_TIMEUNIT_MS);
CHECK_RESULT(result, __LINE__ );
FMOD_Channel_SetPaused(channel, false);
```
It not work !!! please help me.
---
### Author:  [@qq200600](https://qa.fmod.com/u/qq200600)
#### Post date: [May 5, 2016, 5:14am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/5 "2016-05-05T05:14:30Z")
OK, I soloved it by:
result = FMOD\_Channel\_SetPosition(channel, length - 1, FMOD\_TIMEUNIT\_MS);
CHECK\_RESULT(result, **LINE** );
---
### Author:  [@qq200600](https://qa.fmod.com/u/qq200600)
#### Post date: [May 5, 2016, 5:14am UTC](https://qa.fmod.com/t/fmod-5-not-has-the-fmod-software-can-not-reverse-sound/12477/6 "2016-05-05T05:14:32Z")
OK, I soloved it by:
result = FMOD\_Channel\_SetPosition(channel, length - 1, FMOD\_TIMEUNIT\_MS);
CHECK\_RESULT(result, **LINE** );