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01/25/07 23:55
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#131512 - audio CODEC
Responding to: ???'s previous message
Vinay Shrivastava said:
I intend to develope some voice based application where i need to store voice messege of 5 seconds length and approximatly 150 in no. these messege need to be picked and placed in logical order then played back as a sentence . I have control in 8051 and I2C . I am looking forward for suitable reliable hardware like voice IC with i2c feature . Most importantly it should be available in india in small quantities . If you can help please.


Audio converters use the I2S ("inter-inter-sound") interface for the audio data and clocks. This is NOT the same as the I2C interface, which, if present on the converter, is used only for configuration.

The only 8051-compatible micros I've seen with I2S ports are the TI TAS1020 and TUSB3200. It's a micro with a USB interface and data from the computer is handled by the micro's USB interface, which DMAs it to the I2S port. In other words, the micro never directly writes to or reads from the I2S port, so it's probably not what you want.

For voice-quality apps, there may be ADCs and DACs with an I2C interface you can use.

-a

List of 8 messages in thread
TopicAuthorDate
How to communcate with 2 devices using C8051F310            01/01/70 00:00      
   Just tie all the SDAs and all the SCLs together            01/01/70 00:00      
      By definition            01/01/70 00:00      
   Are codec for audio purpose            01/01/70 00:00      
      Start with the usual suspects            01/01/70 00:00      
      I am using Cirrus CODEC            01/01/70 00:00      
      audio CODEC            01/01/70 00:00      
         More audio codecs            01/01/70 00:00      

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