nginx代理linux系统上wav文件

Question

如何通过代理的方式，可以在浏览器页面上读取linux的上的wav文件。
现nginx配置：

 server {
        listen       9001;
        server_name  localhost;
        charset utf-8;
        location ~ .*\.(gif|jpg|jpeg|png|wav)$ {
            expires 24h;
            root /home/qms/recordings/;#指定存放路径
            proxy_store on;
            proxy_store_access user:rw group:rw all:rw;
            proxy_temp_path /home/qms/recordings/;
            proxy_redirect          off;
            proxy_set_header        Host $host:9001;
            client_max_body_size    10m;
            client_body_buffer_size 1280k;
            proxy_connect_timeout   900;
            proxy_send_timeout      900;
            proxy_read_timeout      900;
            proxy_buffer_size       40k;
            proxy_buffers           40 320k;
            proxy_busy_buffers_size 640k;
            proxy_temp_file_write_size 640k;
            if ( !-e $request_filename)
            {
                 proxy_pass  http://10.40.21.80:9001;#默认80端口
            }
        }
        location /qms-wav/ {    #指定视频、音频存放路径
           root  /home/qms/recordings/;
           autoindex on;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }   

    }

error日志：
021/09/26 17:11:19 [crit] 1037#0: *19273 open() "/home/qms/recordings/0000005512" failed (13: Permission denied) while reading upstream, client: 10.x, server: localhost, request: "GET /qms-wav/20210924/wx.wav HTTP/1.0", upstream: "http://10.x:9001/qms-wav/20210924/wx.wav", host: "10.x:9001"
2021/09/26 17:11:19 [error] 1038#0: *19271 upstream prematurely closed connection while reading response header from upstream, client: 10.x, server: localhost, request: "GET /qms-wav/20210924