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    Spresense example project 'audio player' not working

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      Larry last edited by

      I am new to Spresense and I run the 'audio_player' sample project under Ubuntu. I can run the project successfully while I cannot hear anything through my earphone.
      1-Can Run Successfully.png
      My earphone is connected to the headphone jack and it is working fine when connecting to the laptop. The SD card is also in FAT32 format.
      Connection.jpg
      I followed the instructions here (Section 4.1) https://developer.sony.com/develop/spresense/docs/sdk_tutorials_en.html#_sample_application_of_audio_player: while it is still not generating audio output.

      I am wondering whether the operation of this sample project requires hardware modification? Is it related to section 1.19 https://developer.sony.com/develop/spresense/docs/hw_docs_en.html#_HOW_TO_USE_SPEAKERS of this document? Or the audio_player sample project is not related to the 'how to use speaker'? Right now I have not conducted any hardware modification on the board.

      Thanks in advance for any help.

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      • K
        KamilTomaszewski DeveloperWorld last edited by

        Hi @larry

        I tried to run an audio_player example and it worked. I tried with two different headphones.

        This example does not require any hardware modification.

        Could you try with other headphones maybe?

        Best Regards,
        Kamil Tomaszewski

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          Larry @KamilTomaszewski last edited by

          @kamiltomaszewski Hi Kamil, Thanks for your reply. I tried 4 different speakers and they all cannot work. Even the very basic audio_beep example cannot work (I tried this under Arduino, Linux and Windows). I am highly suspect that it is sth wrong with my extension board.

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          • K
            KamilTomaszewski DeveloperWorld last edited by

            Hi @larry

            If you want to use speakers then you have to do some hardware modifications (https://developer.sony.com/develop/spresense/docs/hw_docs_en.html#_HOW_TO_USE_SPEAKERS). If you want to use headphones, you don't have to. So if you are trying speakers, you have to do hardware modification.

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