https://e2e.ti.com/support/audio-group/audio/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1644806/tas5830-ppc3-pure-path-console-install-sw/6362208Thu, 28 May 2026 09:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:26aded4a-110d-44b1-ac36-a240ffd09a7eWenbin Li1Hi Han, I will check internally on this and feedback to you. Br, Wenbinhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650193/pcm6240-q1-vref-and-input-attenuationThu, 28 May 2026 08:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b4796fc4-4ab1-4528-800b-d7c866c2ad22user6199457Part Number: PCM6240-Q1 Hi expert, Vref pin&#39;s voltage is meaused 2.7V, what is the the relation between AD convert and reference voltage? It has low swing mode and high swing mode in mic application. Is input attenuation 14dB or 20dB? Can it attenuate in both high and low swing mode? Line in mode, the relation is 10Vrms--&gt;1FS; MIC input, is low swing 2Vrms--&gt;1FS? Is high swing 10Vrms--&gt;1FS?Infotainment &amp; ClusterPCM6240-Q1https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650170/tlv320aic1110-itu-t-g-726-adpcm-32kbps-codecThu, 28 May 2026 07:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4a782e3f-0861-46c4-a1cb-8f9c4ae6a4c3Kazuki ItohPart Number: TLV320AIC1110 Hi team, I am working with a customer who is looking for an audio CODEC solution that supports both of the following standards: PCM CODEC Interface: ITU-T G.711 (u-law PCM) ADPCM CODEC Interface: ITU-T G.726 (32kbps) For the G.711 u-law PCM requirement, I have identified TLV320AIC1110 as a suitable candidate, as it supports 8-bit companded u-law/A-law data format in hardware. However, I was unable to find a TI device with native hardware support for ITU-T G.726 (32kbps ADPCM) . After reviewing the TLV320AIC1110 datasheet (SLAS359), there is no mention of G.726 ADPCM support. Could you please advise: Does TI offer any audio CODEC device with native hardware support for ITU-T G.726 (32kbps ADPCM) ? If no hardware solution exists, is there an official TI software/DSP library that implements G.726 ADPCM encoding/decoding (e.g., for TMS320 DSP family)? Is there a recommended combination of TI devices and software to fulfill both G.711 u-law and G.726 32kbps requirements? Any guidance or product recommendations would be greatly appreciated. Thank you in advance for your support. Best regards, Kazuki Itohtlv320aic1110Enterprise machinehttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1647571/tpa3255evm-are-tpa3255-and-tpa3255d2-the-same-thing-or-are-they-different/6362053Thu, 28 May 2026 07:17:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f9411b10-58da-4105-b3a4-390b600b26d6Wenbin Li1thanks for your feedback, i will close this thread. Br, Wenbinhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650146/am5708-uac2-gadget-audio---windows-host-does-not-read-in-endpoint-playback-from-device-to-host-failsThu, 28 May 2026 07:13:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ba55e0c7-3bd8-4c13-8717-445e0c775d9dshi justinPart Number: AM5708 UAC2 USB Audio Class 2.0 Gadget: Windows host does not send IN tokens for isochronous IN endpoint — playback from AM57xx device to Windows host fails with EIO Platform - SoC: TI AM57xx - Kernel: Linux 4.9.65 (TI SDK) / tested with patches up to 4.9.337 - USB Controller: dwc3 (drivers/usb/dwc3/) - Gadget Driver: f_uac2.c (USB Audio Class 2.0 function) - Host OS: Windows 10/11 (UAC2 class driver) Description When configuring the AM57xx as a USB Audio Class 2.0 gadget device using g_audio (or f_uac2 via configfs), the device enumerates successfully on Windows without error (no yellow exclamation mark in Device Manager) when using USB_ENDPOINT_SYNC_ADAPTIVE for the isochronous endpoints. However, audio playback from the device to the Windows host (IN endpoint direction) does not work. Running aplay -D plughw:2,0 /path/to/48.wav on the device results in: aplay: pcm_write:2004: write error: Input/output error Topology ALSA_Playback -&gt; IT_2 -&gt; OT_4 -&gt; USB-IN (device-&gt;host, isochronous IN) USB-OUT -&gt; IT_1 -&gt; OT_3 -&gt; ALSA_Capture (host-&gt;device, isochronous OUT) The OUT endpoint (host→device, capture) works correctly — iso_complete callbacks fire with actual data (e.g., actual=192). The IN endpoint (device→host, playback) never gets iso_complete callbacks — the Windows host simply does not send IN tokens to read from the device&#39;s isochronous IN endpoint. Reproduction Steps # On AM57xx device: modprobe g_audio p_srate=48000 c_srate=48000 p_chmask=3 c_chmask=3 # Connect USB to Windows host # Windows Device Manager: device appears as &quot;Linux USB Audio Gadget&quot; (no error) # On device: aplay -D plughw:2,0 /path/to/48.wav f_uac2.cAM5708Portable Electronicshttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1640304/tlv320aic3204evm-k-could-not-do-flashing-after-flash-i-did-not-run-remove_minievm-file-so-flash-is-not-done/6362014Thu, 28 May 2026 06:50:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:be402431-b27c-4537-90a6-968d936ccb10SHARON PSokhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650115/pcmd3140-0x3c-ch_1cfg0Thu, 28 May 2026 06:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5abfb9fe-785d-4140-9037-0a7bd7162d20MochiPart Number: PCMD3140 Hello, Our customer is verifying the ADC function with PCMD310EVM. We are seeing the attached output signal from the 4ch PDM mic input . At the default value of 0x41 CH2_CFG0 to 0x00, Channel 4 output is missing. If we set a hidden register of 0x3C, expected name of CH1_CFG0 to 0x40 (INSRC=PDM), then we could get all 4ch output. However, 0x3C is not disclosed on the datasheet, so we just tried this experiment. Should we Write this hidden register value to get 4ch output? Why is this register hidden on the datasheet? Regards, MochizukiPCMD3140Roboticshttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650107/tas2120evm-tas2120evm-amps231c-user-guideThu, 28 May 2026 06:06:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9ac88c33-3a95-4d27-9d07-31a16784fd14Shannon TanPart Number: TAS2120EVM Hello, It appears that the TAS2120EVM user guide is based on a different revision of the board than the one I received. I have misplaced the document that came with the kit itself---would it be possible to get access to information on how to configure and bring up the TAS2120EVM AMPS231C board? For reference, the user guide selection jumpers are completely header based---for my board, SEL5, 4, and 3 are all switches rather than headers. Thank you!TAS2120EVMhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1645862/tlv320aic3107-output-level-higher-than-agc-target-gain-setting/6361901Thu, 28 May 2026 05:19:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d45606b0-adb3-47fd-8cc9-3af1477fb42eMir JeffresHi, My measurements do include when the input is over the target level, dBrG is with respect to full scale, not the target level. I do agree with your results, the output should decrease when input exceeds the target. I can try again with a lower target, since -10dB may actually be -4dB, this is close to full scale. I also tried to get this to work with a differential signal, to verify the target levels of the AGC with differential input, but was having some issues with the script as is. I might need to try again to get that working. That would help confirm what signal the AGC is looking at, and is the gain always 6dB off or just for single ended. Analog output vs digital output of the AGC should not have a big effect on the operation of AGC, my differences from yours may be due to measurement error. DAC behavior should be linear across frequency. -Mirhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1640304/tlv320aic3204evm-k-could-not-do-flashing-after-flash-i-did-not-run-remove_minievm-file-so-flash-is-not-done/6361889Thu, 28 May 2026 05:09:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fb85d74e-edf4-42aa-949e-3653860da238Mir JeffresHi, I will check this in the lab tomorrow.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1640304/tlv320aic3204evm-k-could-not-do-flashing-after-flash-i-did-not-run-remove_minievm-file-so-flash-is-not-done/6361871Thu, 28 May 2026 04:43:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:216d455c-4543-4995-8f51-f58c669bca7dSHARON PSGarret Godfreyhttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650016/tas5441-q1-please-confirm-load-diagnostic-test-results-for-tas5441/6361718Thu, 28 May 2026 02:05:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ed18ae65-2120-45f0-8f8b-7d07f7b5aa1ezhaoying wangHi Chirag, I cannot see your picture now. Could you upload your picture again? Does SPKR+ and SPKR- represent to the load connected to the OUTP and OUTN? And could you also provide the test conditions and start-up script? That helps to understand your problem. Best Regards, Zoey Wanghttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650041/tlv320adc3101-q1-can-i-use-this-driver-i-found-this-driver-in-the-sdk-directory-if-it-can-be-used-i-think-it-will-be-more-compatible-with-my-kernelThu, 28 May 2026 01:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9ef72ed3-0849-4d53-9b01-0be6d74bcdc2lllya02 FfffPart Number: TLV320ADC3101-Q1 tlv320adc3xxx.c tlv320adc3xxx.h Could you please help me with a reference and also provide some examples related to the device tree?TLV320ADC3101-Q1https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650038/tlv320aic3007-inquiry-about-the-functional-testing-items-of-the-tlv320aic3007Thu, 28 May 2026 01:36:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ed1e5b89-6506-495b-b59f-d0b9b212d0eeBoris liuPart Number: TLV320AIC3007TLV320AIC3007Portable Electronicshttps://e2e.ti.com/support/audio-group/audio/f/audio-forum/1648428/pcm1863-request-for-support-pcm1863-microphone-capture-no-audio-output/6361665Thu, 28 May 2026 01:17:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a01c29c3-2b31-4aa8-9962-2330e6f44300Luke LinHi Garret, Thank you for your explanation. Based on your suggestion, I understand that I need to set the coefficients of I2S_L and I2S_R in mixer1 to values ​​corresponding to 0dB. I referred to SLAC663 and set the relevant registers, but I didn&#39;t record any sound. You can see my setup steps in the image. In addition, I also tried setting the gain of MIX1_CH1L, MIX1_CH1R, MIX1_CH2L, and MIX1_CH2R to -120dB, and setting MIX1_I2SL and MIX1_I2SR to 0dB, but still no sound was recorded. I tried the same settings in mixer2, with the same result. Is there something wrong with my understanding? Could you tell me where the problem lies?https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650028/tac5112-tac5112-common-mode-sensingThu, 28 May 2026 01:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3085eb1d-855d-4ac2-9566-869c3310750es_breakpointPart Number: TAC5112 Hi, I&#39;m trying to evaluate the TAC5112 for a battery-operated product I&#39;m developing. On page 42 of the TAC5112 datasheet, a diagram is shown (Figure 7-23) that seems to imply that OUT2M can be used to sense the voltage of OUT1M when using pseudo-differential output connections...but it&#39;s not quite clear to me how this works? Does Out2M get configured to an input pin of some sort when in this mode? If so, how/where is the value of the VCOM voltage returned? The case I&#39;m trying to address: my product wil have a stereo headphone output jack, but 1) I&#39;d like to use a capless headphone design, which means 2) I&#39;d like to be able to detect if someone plugs something into this jack that is not a pair of passive headphones. If something like a stereo cable is plugged in, and this connects to a power amplifier or other load that is connected to mains, I understand that a ground mismatch happens, and I&#39;m curious what my options are for handling this gracefully (which is to say: I am curious if the TAC5112 can detect such a condition). A small secondary question: are the resistors depicted in this diagram meant to represent the headphone resistance, or are there additional resistors required for pseudo-differential output? I&#39;m finding the diagram a bit confusing. Thank you!TAC5112https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1644806/tas5830-ppc3-pure-path-console-install-sw/6361587Thu, 28 May 2026 00:08:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4e3e6c8c-e315-4a4d-ae9f-592d81f02198Han ParkI checked again this morning, and the status is still pending.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1647571/tpa3255evm-are-tpa3255-and-tpa3255d2-the-same-thing-or-are-they-different/6361581Thu, 28 May 2026 00:03:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f2a594a9-4198-44bb-9c4e-e2c0f26b7562kamijo koichithank you very much.https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650016/tas5441-q1-please-confirm-load-diagnostic-test-results-for-tas5441Wed, 27 May 2026 22:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ed3ddc30-ebb0-4fee-9bde-8923b5bc38edChirag Patel1Part Number: TAS5441-Q1 Hello, we see following faults reported by TAS5441. Can you please confirm if this is expected results? In all cases, speaker is not attached. 1st row: detected open load on SPKR+ and Over-current shutdown on SPKR- ? Shouldn&#39;t it detect output short to ground on SPKR- ? 2nd row: detected output short to gound on SPKR + ? Shouldn&#39;t it detect open load on SPKR- ? 3rd row: OK, it detected shorted load 4th row: detected open load; why does it say &quot;play mode&quot; ? 5th row: it detected over-current shutdown on SPKR+ ? is this expected when shorted to PVDD ? 6th row: OK, detected short to PVDD on SPKR- Thanks ChiragInfotainment &amp; ClusterTAS5441-Q1https://e2e.ti.com/support/audio-group/audio/f/audio-forum/1650007/pcm6360q1evm-pdk-request-pp3-evm-app-access-for-pcm6360q1evm-pdk/6361375Wed, 27 May 2026 20:59:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f39be38f-a4bc-4982-af32-a63ffe764bd0Garret GodfreyHi Martin, These must be requested at the link found here: https://www.ti.com/secureresources/PCM6260QEVM-SW Please give our team a day or two to approve the request. Best, Garret