Lame decoding

[cindy_16051988]

Hello, sorry to disturb you all. I am newbie here. Recently, I call lame.exe from my software to do the encode and decode part by the help of a friend. My software is designed to record and play wave file in audio and visual. It is used in our speech rehabilitation centre to help children with speech problem. I work part time there.

I convert the wave file recorded by my software to MP3 by calling the lame.exe. It happened successfully.

Then, since the software can only play wave (cannot play MP3), I use the lame.exe to convert MP3 to wave file again. But, my software failed to play the wave giving the error of “Unsupported File Format”.

I checked both the wave file before and after conversion. They give the same format: PCM, mono, 16 kHz, 16 bits, 256 kbps. I could not figure out why the software cant play the wave file after conversion. The software can play the wave file recorded by the software itself.

Then, I tried by changing “- -decode” to “- - decode –t” but I get another error of saying that “Invalid File Type”. The, I tried again for “-x” because I thought there may be problem of little endian and big endian. The problem is still the same.

Hope you can give me some ideas or suggestions. I promise to do it as independent as possible, please, please. Please guide me at this very beginning.

[tebasuna51]

I checked both the wave file before and after conversion. They give the same format: PCM, mono, 16 kHz, 16 bits, 256 kbps. I could not figure out why the software cant play the wave file after conversion. The software can play the wave file recorded by the software itself.
I need a very little (1 sec.) test from two wav files (before and after conversion) to analyze the wav headers.

Use http://www.mytempdir.com/ for instance to send the test.

[cindy_16051988]

Hi, Tebasuna51, thank you very much for your reply, appreciate.

I have managed to convert it successfully. I was asked by a friend to remove the codes of GetNumSamples and after I removed it, the software can play the wave successfully.

May I ask? Is it possible to directly convert the wave to mp3 when the children click the button "save"? I worried that the small children dont know how to do this and that. We hope to make it as simple as possible. so that they are motivated to use this software.

[tebasuna51]

May I ask? Is it possible to directly convert the wave to mp3 when the children click the button "save"?
Maybe, but I don't know your software.
You need modify the routine associated to event "Save_click" in order to use lame.exe or lame_enc.dll.