STM CircleOS forum / Executing PlayWav

jetcode · 2009-04-04 04:43:57

Hi,

Brand new user here and am impressed by this platform.

I found that running this program hangs during playback but it appears the files are being written to the SD card. I can't debug because I have the basic version but want to step up to the pro version so I can test and debug the applications and potentially work on circle_os which I think is a nice platform for applications. I have some applications that I've been looking to port to a nice hand-held platform. I am using a Primer 2 and have upgraded the OS and primer 2 application suite.

Joe

Francis · 2009-04-04 06:46:26

We encountered the issue with the alpha version (3.7a), but not with 3.7.
Unfortunately, we never reproduced the issue in debug mode. We will try again.

Today, we received a fix concerning the FS_Seek function, but this function is not called by playwav.

If you are able to reproduce easily the problem, please let us know.

jetcode · 2009-04-04 17:49:52

Sorry I'm still learning your forum and systems. See the next thread in this collection.

Saulis · 2009-04-22 09:03:51

Hi, I cant play any wav file on two our primer2. Card is nokia 64mb, i guess its standardt SD type. OS just hangs up, audio codec starts chirping and the only way is to restart by debugger or remove power jumper.

Francis · 2009-04-22 09:11:58

Did you try the 'dictaphone' ?

Saulis · 2009-04-22 19:38:54

dictaphone (todays release) also hangs up after recording start. After reset found rec file, but cant playback. tried to delete rec file - also stopped to respond. Restart circle -> file not found in card. It seems to me, that opperations with card layer are working, but cmd status gives some weird answers.

Last edited by Saulis (2009-04-22 19:41:51)

rondesc · 2009-05-02 20:39:35

'Play.Wav' would not play any waves I had lying around. I made a Recording with MS Sound Recorder (44.1KHz, 16bit stereo) and it would not play it.
I created, with 'Audacity', a recording which it would play very well indeed. This recording was 22.05KHz, 16bits Mono.
I also find that the Rec.Wav files play back but are severely chopped up &/or scrambled.

repzak · 2009-05-03 08:26:59

Hey,

You are sure the files are pure PCM data, and not some compressed wave file?
http://en.wikipedia.org/wiki/WAV

You can try to set the CPU speed to max before you enter the playWav application

Kasper

Francis · 2009-05-04 16:07:15

I tried without changing the CPU speed, and it works.
Are you sure you have the latest CircleOS ? It should be referenced as 3.71 by the 'About page'.

Saulis · 2009-05-15 07:53:34

Today I got some new SDHC 4GB microSD card, and Playing works well So either my previous card is too slow, or managenent routines makes it too slow to respond...

Saulis · 2009-05-19 19:38:51

I've tried to use it as a player for some time wih full charge of battery it lasts for about 1.2 hour, before it hangs up(primer2 itself). Had to do some hard restarts. Added some improvements like lcd backlight off after some seconds, and its turned on on key press. pressing key double it play.wav exits. I disabled loudspeaker in settings. There is still one problem, its beeps from accelerometer. Didnt found a quick way to turn it off, because as i see its hard coded in accelerometer handler routine.

Francis · 2009-05-19 20:27:22

Yes, the beep should be disabled at least when sound is active... We will make this change within the next release.

pratheek · 2010-04-26 18:07:14

why .h files are not openin? any software to download for that?

smithdwsn · 2010-05-11 12:20:06

I used playwav. It is simple freeware command-line application. It plays a windows .wav audio file. It is easy to integrate into any type of application. I have used dictaphone hangs up after recording start and after i reset it but i cant play it.

jobstitan123 · 2011-03-14 20:33:07

Well, I have to say you've got many ideas ... but I don't think these could be either fun or useful !
To start, there will be a very restricted number of people who will modify there Primer to get your project work and much less who will be likely to modify their bike or their steering wheel

jonymac001 · 2011-09-20 06:57:20

I have a form with an array of captions. I also have a timer. Every 50 miliseconds, every caption changes to a random letter. Every half second, one caption stops at a certain letter. This happens until every letter has stopped and the captions spell out a word.

(That was just a little background info)

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