如何使用改造将音频文件上传到服务器？

Question

我使用Retrofit将数据上传到服务器，幸运的是我成功上传了一张图片并且工作正常，但在上传音频文件后，它上传了不同的尺寸而无法正常工作。

我按照此tutorial上传了图片。

我添加一些参数来上传音频：

    @FormUrlEncoded
    @POST("upload.php")
    Call<ImageClass> uploadImage(@Field("title") String title, @Field("image") String image, @Field("audio") String audio);

我使用静态uri音频文件：

private String audioPath() {
        File file = new File(Environment.getExternalStorageDirectory() + "/Download/audio2.wav");
        Uri uri = Uri.fromFile(file);
        return uri.toString();
    }

这是上传方法：

private void upload() {
        String Image = imageToString();
        String Title = imageTitle.getText().toString();
        String Audio = audioPath();


        Log.d("TAG", Audio);

        ApiInterface apiInterface = ApiClient.getApiClient().create(ApiInterface.class);
        Call<ImageClass> call = apiInterface.uploadImage(Title, Image, Audio);

        call.enqueue(new Callback<ImageClass>() {
            @Override
            public void onResponse(Call<ImageClass> call, Response<ImageClass> response) {
                ImageClass imageClass = response.body();
                Toast.makeText(getApplicationContext(), "Server response: " + response, Toast.LENGTH_SHORT).show();
                image.setVisibility(View.GONE);
                imageTitle.setVisibility(View.GONE);
                choose.setEnabled(true);
                upload.setEnabled(false);
                imageTitle.setText("");
            }

            @Override
            public void onFailure(Call<ImageClass> call, Throwable t) {
                Toast.makeText(getApplicationContext(), "Server response: " + "Fail", Toast.LENGTH_SHORT).show();
            }
        });
    }

在php代码中：

if ($con) {
    $title = $_POST['title'];
    $image = $_POST['image'];
    $audio = $_POST['audio'];

    $upload_path = "upload/$title.jpg";
    $audio_path = "audio/$title.wav";

    $sql = "insert into imageinfo(title,path,audio) values('$title','$upload_path','$audio_path');";

    if (mysqli_query($con, $sql)) {
        file_put_contents($upload_path, base64_decode($image));
        file_put_contents($audio_path, $audio);
        echo json_encode(array('response' => "Image uploaded successfully...."));
    } else {
        echo json_encode(array('response' => "Image uploaded failed...."));
    }
    mysqli_close($con);
}