TLV320AIC3256EVM-U: Mic to speaker

user4834077

Hi.

I am in charge of a project of bluetooth headset with the function of hearing aid. I choosed a Bluetooth chip as the Microprogrammed Control Unit (MCU) and TLV320AIC3256 as a digital signal processor of the audio. I want to use the Parametric EQ module(PEQ) of PurePath Studio as the hearing aid algorithm, but it seems the PEQ has a very limited ability of compensation (0-12dB) for every frequency band. Is there any other module which has a higher range of compensation for every frequency band?

Thanks!

over 4 years ago

0 Diljith over 4 years ago

TI__Expert 6440 points

Hello,

Thanks for your interest in TLV320AIC3256. What would be the range of frequency compensation that you desire for the PEQ? Higher PEQ gains can be achieved by cascading PEQs with the same frequency bands. High gain EQ cascades can lead to saturation and that would have to be handled by scaling at the PEQ inputs and compensating at the PEQ outputs.

Best Regards.

0 Diljith over 4 years ago in reply to Diljith

TI__Expert 6440 points

Hi,

Since I haven't heard back, I presume you have found a way to achieve higher gains. I shall mark this thread as resolved but please re-open or start a new thread if you need further assistance.

Best Regards.

Audio

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TLV320AIC3256EVM-U: Mic to speaker