Plum IVR Support

Hello:

I added a new couple of MP3s to our sounds library for prompts and am now getting the following error from PLUM:

MadDecoder::errorCallback() - unrecoverable decoding error 0x0104 (reserved sample frequency value)

What is the issue? The MP3s are encoded at 192kbps, I do see our others are at 128kbps, but there is nothing in the documentation that indicates a requirement for encoding bit rate, so am at a loss for the issue...

Thanks in advance,

John

Hi John,

The file size that you are using is supported, so we don't believe that would be the cause of this error. It may be because the audio file you are attempting to use is either corrupt or encoded improperly. We recommend testing the file externally to rule out this possibility. Please let us know if you have any additional questions or need further assistance.

Regards,
Plum Support

Hello:

It seems to play fine in any audio player. It was encoded using audacity. We did try and reduce the bitrate to 128 from 192, but that did not work. We are going to try encoding as a wav and see how that works...

FYI we are using Audacity for recording the sound files...

Thanks,

John

Dear John,

Please keep us updated on the situation. In turn, .Wav encoding should function correctly.

Best,

Plum Support

So the WAV files did not work because apparently wavs have to be single channel only...trying again tonight.

Suggestion to update documentation with exact supported specs for sound files, and recommended and validate tools to create them.

John

And again they did not work because the sample rate must be 8000Hz, no more no less...ours were 48000Hz.

Again, I ask for more complete documentation.

John

Hi John,

Thank you for the update! We revamped the documentation for audio files and encoding if this page may help you. Please take a look and let us know if there is more clarifying we can do.

http://www.plumvoice.com/docs/dev/devel ... ence:audio

Regards,
Plum Support

Hi John,

We would be happy to take a look at the file for you. You can send it to us in a private forum message, or in an email to support@plumgroup.com (be sure to include your customer number in the subject line).

Regards,
Plum Support

I was finally able to get the WAV files to work by downsampling them to 8000Hz. Thank you for the update to the documentation. This will hopefully prevent similar issues for your other customers.

Hi John,

Glad to hear that the issue was resolved. Please contact us if there is any other problems you encounter.

Regards,
Plum Support