ESP8266 Community Forum

- Wed Jun 10, 2015 10:43 am #20059 Hi

We are a groups of students, and we want to transmit Audio via ESP. Our audio has a sample rate of 4Khz.

We have seen some post about streaming audio, and people say that it is little dificult, because they need high transfer ratio. But our audio has slow sample rate.

We have been thinking about use FILTER(100Hz-2000Hz)->ADC(4Khz Sample rate)->ESP->Android

It is posible that we need a Codec IC to transmit the audio properly. We set the ESP as a AP

We want to know if it is posible with ESP?

If we send the audio via UART, 12bit audio, at 115200BPS:

115200/12+1(Stop)=8228 Samples/sec more than 4Khz

Thanks for All

- Tue Jun 23, 2015 5:45 am #21362 Check on this board for I2S viewtopic.php?f=11&t=3431

Get you modules here:

https://www.banggood.com/custlink/KvGGhGF4wG

- Tue Jun 23, 2015 8:48 am #21374 @tytower, please read more carefully : what l1llo5 asked is the reverse, having an ADC and then stream audio to an Android.

- Tue Jun 23, 2015 9:22 am #21380

If we send the audio via UART, 12bit audio, at 115200BPS:

115200/12+1(Stop)=8228 Samples/sec more than 4Khz

Default built in ADC ESP8266 10..12bits, sample rate of 22kHz.
So far there are no examples audio codec.
Send/receive UDP packets.