How to Interface audio Processors

[sanddune008]

Hi,

Application:
Record sound over a mic store and send the recorded data to the speaker on demand.

Can someone give a brief how this can be achieved?

It would be great if someone can point me to an existing project.

Can someone point me to the datasheets available.

Regards,
Sanny

 

[Gayan Soyza]

Use ISD chips.

ISD2590

 

[sanddune008]

Thanks for your time..........

If I were to connect external speakers like the head phone will this IC be enough?

Doubt:
What will be the compression format used?

I will be inferfacing this to an microcontroller which will send the audio data to the audio jack.

I see MP3 or MPEG2.5 audio codecs?What will be the advantages of following codecs over the IC mentioned.

Regards,

 

[Gayan Soyza]

Read this

**broken link removed**

 

[sanddune008]

How good will be the quality of recording and play back using above mentioned IC?....
Will there be any other means to improve the quality if so?

Thanks in advance

 

[Hero999]

It depends on the sample rate.

There are ICs on that page with sample rates ranging from 4kHz to 48kHz, which goes from poorer than telephone to CD quality.