TLV320AIC3254: Does AIC3254 support audio delay?

Hi, Jerry,

As mentioned in the help window, this block supports a delay up to 4800 samples.

The delay is configured in the properties Out1, Out2, Out3, Out4 or Out5. The output can be any of these outputs. However, the maximum delay is determined by Size*Pack*Dec - Dec. Please take a look at the help window for details.

Long Delay.pdf

Additionally, you may take a look at the delay component. It may be used also to add a delay. It is easier to use.

1200.Delay.pdf

Best regards,
Luis Fernando Rodríguez S.

Hi Luis,

Thanks for your great suggestion. After check with my customer, their target is delayed 80mS, Is it possible? Thanks!

Pac_Delay = 13.56mS (44.1KHz)

Delay = around 0.24mS

Hi Luis,
Thanks for the information. Does Pac_Delay only supports one channel?

Hi, Jerry,

Yes, only one channel is supported by this Delay block. You would need to add a block per channel.

Best regards,
Luis Fernando Rodríguez S.

Luis,
As you said, it only can be used one time. I can't compile two Pac_Delay in same PPS file. Any idea for it?

Hi Luis,
But I already use the "DSP_A_DSP_D" for analog input. Seems AIC3254 can't support it. Should I use the "control software" to achieve analog input or digital input?

Hi, Jerry,

May you try changing the inputs number in the Pac_Delay properties window? It seems that the block may support two inputs. Could you try configuring two inputs and two outputs on the Pac_Delay properties?

If the problem persists, the best option would be use the "control software" as you mentioned.

Best regards,
Luis Fernando Rodríguez S.

Hi Luis,
I changed the Pac_Delay to two inputs, it will mix the L/R signal, not for stereo application, will try the CS. Thanks!

Hi Luis,

I am trying the below PPS configuration, but when I play R channel music, why I can hear the sine tone from L channel? Thanks!