μ-law Process Flow of Pure Path Studio for AIC3254

yoshiki hasebe

Mastermind 6385 points

Other Parts Discussed in Thread: TLV320AIC3254

Hello , I want to make Process Flow using μ-Law encoder and decoder by PPS for TLV320AIC3254.

Could you please teach me sample program or using　 μ-Law　components ?

over 13 years ago

0 Don Dapkus over 13 years ago

TI__Guru**** 189401 points

Hi, Hasebe-san,

Let us look into this and get back with you.

Please reply to this thread if you don't get an answer by the middle of next week.

-d2

0 Supriyo Palit over 12 years ago

TI__Prodigy 160 points

Hello Hasebe-san,

Please find attached a process flow using ulaw encoder and decoder by PPS on TLV320AIC3254.

The ulaw encoder is used in the record path and the output can be captured over I2S. The I2S data will have the 8MSBs as non-zero. The lower-bits will all be zero.

The output of the ulaw encoder is then passed to the playback path and sent to the ulaw decoder. The output of the ulaw decoder is then sent to the analog output of the TLV320AIC3254.

Regards,

Supriyo

0 Supriyo Palit over 12 years ago in reply to Supriyo Palit

TI__Prodigy 160 points

Hello Hasebe-san,

It seems the attachment did not go through. I am sending again.

ulaw.zip.

Also, please note that the sampling frequency is 48 KHz.

Regards,

Supriyo

ulaw.zip

0 yoshiki hasebe over 12 years ago in reply to Supriyo Palit

Mastermind 6385 points

Hello Supriyo-san

I'm sorry for the late reply.

Thank you for the suggestion SignalFlow.

I will introduce to customers the process flow soon.

Regards,

hasebe

0 Oleg Yurchenko over 11 years ago in reply to Supriyo Palit

Intellectual 330 points

Hello, SPalit.

Sorry for my English. I try to use alaw codec in miniDSP of the tlv320aic3254. My settings - 16 KHz, 16 bit audio. I can not understand whether the results are correct. Can you help me? my topic - http://e2e.ti.com/support/data_converters/audio_converters/f/64/t/333784.aspx

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μ-law Process Flow of Pure Path Studio for AIC3254