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AIC3254
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  • Forum Post: Re: AIC3254 mini-DSP Instruction Set

    D. Hartl
    At this time, TI does not offer low level development tools to the general market. Please contact your local TI sales office or distributor for detailed information about software development on the miniDSP.
    on Jan 14, 2009

  • Forum Post: Re: AIC3254 and echo cancelation

    J Arbona
    Hello Keith, The AEC module will be made available in 3 weeks. Documentation will be distributed with the component, including instructions for algorithm application and tuning. Regards, JA
    on Mar 20, 2009

  • Forum Post: Improve battery life and reduce time-to-market

    Luca
    Hello Everyone, Portable consumer electronic manufacturers are challenged to develop cost-efficient, high-performance, feature-rich audio solutions with longer battery life. At the same time, they are forced to reduce development time in order to be the first to introduce new products in the market...
    on Mar 20, 2009

  • Forum Post: Re: AIC3254 and echo cancelation

    J Arbona
    Mikael, Our AEC algorithm runs at an 8kHz sampling rate. We are working hard on having this component released as soon as possible. We will let you know as soon as it is available. Regards, JA
    on Apr 6, 2009

  • Forum Post: Re: AIC3254EVM 192K sample rate recording

    J Arbona
    Hello LRHUMB, Adobe Audition (formely Cool Edit), Steinberg Cubase, Cakewalk Sonar and Goldwave are some applications that can handle 192ksps recording. However, our USB controller in the USB-MODEVM motherboard operates at USB full-speed and can handle up to 96ksps. Firmware on the EVM can be re-programmed...
    on Jun 3, 2009

  • Forum Post: Re: AIC3254 and echo cancelation

    J Arbona
    Hi Nkeddem, Yes. The AEC module has been released as of PurePath Studio for Portable Audio v2.0. The AEC component can be found under TI Algorithms. Documentation can be found by right-clicking the component and selecting Help. This component uses an 8kHz sampling rate framework called AIC3254_AEC...
    on Jun 4, 2009

  • Forum Post: Re: AIC3254 data formatting

    J Arbona
    Hi nkeddem, Yes. The AIC3254's PurePath Studio has an A-law and u-law component. The AIC3254 can do 8kHz. In order to use USB audio at 8kHz sampling, the firmware must be reprogrammed using the AIC3254 CS. Look for the Tools>EEPROM Programmer panel. Regards, JA
    on Jun 5, 2009

  • Forum Post: Re: AIC3254 alternatives

    Luca
    Jim, If you need low-power please look at the TLV320AIC3204. it is like the AIC3254 but without the miniDSP. ( http://focus.ti.com/docs/prod/folders/print/tlv320aic3204.html ) Regards, Luca
    on Jun 26, 2009

  • Forum Post: PurePath driver question

    Bruce12833
    PurePath Option "Generate complete applications" and "Generate application patches" generates the same driver and config outputs. Is this a bug or am I not using the Application correctly? Also PurePath generates three structures, REG_Section_program and two miniDSP arrays. Can I...
    on Sep 26, 2009

  • Forum Post: TLV320AIC3254 EVM - USBMODEVM firmware for 96.000 kHz sampling rate

    pascal vergnaud
    i wanna use USBMODEVM at 96 kHz and maybe at 192 kHz ... is this possible ? and where to find the firmeware files for this frequencies (USBMODEVM0202_96KHZ.BIN and USBMODEVM0202_192KHZ.BIN ?? ) thx,
    on Sep 30, 2009

  • Forum Post: PurePath support for LEC on AIC3254 miniDSP

    Wayne Duquaine
    The AIC3254 miniDSP currently has support for Acoutic Echo Cancellation (AEC) in PurePath GDE. Any plans for providing Line Echo Cancellation (LEC) as well ? It would be very handy for Telco based applications.
    on Oct 18, 2009

  • Forum Post: Re: Biquad filters for AIC3204 ADC

    J Arbona
    Hello RG, We have a coefficient calculator available at: http://focus.ti.com/docs/toolsw/folders/print/coefficient-calc.html . I would recomend a low pass and a high pass for band-pass filtering. Each can be configured as first or second order for 20dB and 40dB attenuation per decade, respectively...
    on Oct 26, 2009

  • Forum Post: Re: AIC3254 I2S loop

    J Arbona
    Dweinzierl, Data sent to DIN can be looped back to DOUT using the interprocessor component, as shown in the process flow below. Regards, J-
    on Oct 28, 2009

  • Forum Post: Re: AIC3254 and echo cancelation

    Mikael Bohman
    In the premade examples from TI, the AEC demo uses I2S as the input/output for audio. In an embedded design, it's intresting to use the A/D & D/A of the CODEC for input/output combined with the AEC. Is it possible to instead use analog Input/Outputs under the AEC framework? And if so, which...
    on Nov 2, 2009

  • Forum Post: Re: TLV320AIC32EVM codec evaluation board setup

    Gary Perth WA
    Thanks that works great, I now understand more what the program does. My application needs the sample rates as fast as possible. I have been able to set these easy, but the filters now do not show the correct frequency response. Can this be done in the script also so that the AIC2353 EVM picks up the...
    on Nov 9, 2009

  • Forum Post: Re: TLV320AIC32EVM codec evaluation board setup

    Gary Perth WA
    Thank you again for a fast response, I have been using the BI-Quad calculator befor, but I need to do in real time to get the data correct. The only problem with the current solution is that the scales are wrong based upon 44.1KHz. If I could change that to a defined value or better still display what...
    on Nov 10, 2009

  • Forum Post: Re: TLV320AIC3204 Headset Detect

    J Arbona
    Hi Chris, This is a very good question. When a headset is inserted (and headset detection is enabled), the voltage at MICDET will fall below a certain threshold (derived from MICBIAS) due to voltage a drop between MICBIAS and external resistor. This will register as a detection and the MICBIAS will...
    on Nov 13, 2009

  • Forum Post: AIC3254 Headset Detection

    jerome dumas
    Dear All I'm trying to use the headset detection feature of the aic3254, but as soon as I turn it on, it results in a high frequency audio signal in the headphone output. Basically I've a on board mic, biased from external (mic bias available on a 4 pins audio jack), the external bias is conncted...
    on Nov 27, 2009

  • Forum Post: USB-MODEVM possible issue.

    James Fisher
    I am using the Purepath GDE and it works great. At least until I remove the USB connection and reconnect. The MODEVM seems to require reprogramming with a reset or power cycle. I need to provide the unit with a power source as a bit of a demonstration unit and I need to do this without sending a laptop...
    on Dec 7, 2009

  • Forum Post: PurePath Volume control question

    Bruce12833
    I am have trouble understanding exactly what needs to be written to the volume component to change the volume. I am using an aic3254 as an SPI device. The closest I come to making this work is by writing a 24 bit coefficient to addresses 24, 25 and 26 (page 44). This changes the volume on the first write...
    on Oct 5, 2009

  • Forum Post: configure TLV320AIC3254EVM to 192kHz sample rate

    Dmitry K
    Hi, Forum I'm evaluating TLV320AIC3254EVM, and using PurePath studio to generate code for it. I found the tool very userfriendly and intuitive My question is how do i configure it to 192kHz (it's 44.1 currently) and USBfirmware folder does not include image for 192 Thanks in advance...
    on Dec 21, 2009

  • Forum Post: Including manual code into generated script file / PurePath Studio

    jaiv
    Hi there, I am wondering what the normal process is to include manual register settings into a script generated with PurePathStudio. With manual register settings I mean all the analog routing setup and clock configuration etc as they are apparently not included in the generated file. If I add...
    on Jan 20, 2010

  • Forum Post: Re: PurePath and AIC3254 input channel

    J Arbona
    Hi Mikael, To change routing you can use the control software or load a custom script within PurePath. AIC3254EVM-K Control Software: http://focus.ti.com/docs/toolsw/folders/print/tlv320aic3254evm-k.html AIC3254EVM-U Control Software: http://focus.ti.com/docs/toolsw/folders/print/tlv320aic3254evm...
    on Mar 11, 2010

  • Forum Post: Re: Linux ALSA CODEC for TLV320AIC3254

    Luca
    James, Please ask your TI sales representative and he/she will be able to find a driver for you. Thanks, Luca
    on Apr 29, 2010

  • Forum Post: TLV320AIC3254 SPI Control Interface Clarification

    Matt Osborne
    Hi there, the tlv320aic3254 datatsheet seems to be inconsistent with respect to the SPI control inteface timing diagrams: see figures 3.6 and 5.56-57 and notice the clock polarity. Could someone please clarify this? Thanks, Matt.
    on Apr 29, 2010
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