Re: [Freetel-codec2] CODEC problem

glen english Sun, 12 Jun 2016 05:55:30 -0700

Nice one Jereon. Anomadarshi, where is your hardware bottleneck- why the sample rate limit- help us understand . I thought that if you had a hardware bit rate limit, then going for 8 kHz sampling and 8 bit samples would be the same information rate as 4 Khz sampling and 16 bit samples. As Jereon says, you will need to format to suit the buffers and structs. regards

On 12/06/2016 10:43 PM, Anomadarshi Barua Shuvro wrote:

Hi,

Thank you very much...You guys are doing really fantastic jobs..

kind regards

Anomadarshi

On Sun, Jun 12, 2016 at 2:23 PM, Jeroen Vreeken <[email protected]> wrote:

Hi Anomadarshi,

On 06/12/2016 02:11 PM, Anomadarshi Barua Shuvro wrote:
> Hi Glen,
> Thank you very much for your reply . I have few confusions. If I would
> use 8bit resolution per sample , then I would need to change line 3 in
> the following piece of code , right ? If I would change line 3 to buf
> = (char*)malloc(nsam*sizeof(char)) , will it work ? I mean do I need
> to change anything inside of the codec ?
>
No, that won't work.
The codec expects a buffer of shorts. So even if you sample only bytes
you would still have to convert them to shorts.

This is the prototype of the encode function:
void codec2_encode(struct CODEC2 *codec2_state, unsigned char * bits,
short speech_in[]);

It has not changed by your change.

Regards,
Jeroen

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Re: [Freetel-codec2] CODEC problem

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